Introduce RAII helpers for runlevel transitions

Co-authored-by: Pedro Valadés <perikiyoxd@gmail.com>
Co-committed-by: Pedro Valadés <perikiyoxd@gmail.com>

.github/workflows/build.yml

@@ -7,6 +7,7 @@ jobs:
     strategy:
       matrix:
         arch: [amd64, i686]
+        build: [debug, release]
     runs-on: oscw
     container:
       image: codingworkshop/oscw-runner:latest
@@ -17,7 +18,7 @@ jobs:
           fetch-depth: 0
       - name: Build ExectOS
         run: |
-          echo "charch ${{ matrix.arch }} && ./configure.sh && cd build-${{ matrix.arch }}-xtchain && xbuild -v && xbuild diskimg -v" > build.cmds
+          echo "charch ${{ matrix.arch }} && chbuild ${{ matrix.build }} && ./configure.sh && cd build-${{ matrix.arch }}-${{ matrix.build }} && xbuild -v && xbuild diskimg -v" > build.cmds
           xtchain < build.cmds
       - name: Publish binaries
         if: ${{ github.ref == 'refs/heads/master' }}
@@ -26,8 +27,8 @@ jobs:
           OSCW_ARTIFACTS_USERNAME: ${{ secrets.OSCW_ARTIFACTS_USERNAME }}
           OSCW_ARTIFACTS_USERKEY: ${{ secrets.OSCW_ARTIFACTS_USERKEY }}
         run: |
-          tar -I 'gzip' -cpf ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}-bin.tar.gz -C build-${{ matrix.arch }}-xtchain/output/binaries .
+          tar -I 'gzip' -cpf ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}-${{ matrix.build }}-bin.tar.gz -C build-${{ matrix.arch }}-${{ matrix.build }}/output/binaries .
-          tar -I 'gzip' -cpf ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}-lib.tar.gz -C build-${{ matrix.arch }}-xtchain/output/library .
+          tar -I 'gzip' -cpf ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}-${{ matrix.build }}-sdk.tar.gz -C build-${{ matrix.arch }}-${{ matrix.build }}/output/sdk .
-          tar -I 'gzip' -cpf ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}-sym.tar.gz -C build-${{ matrix.arch }}-xtchain/output/symbols .
+          tar -I 'gzip' -cpf ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}-${{ matrix.build }}-sym.tar.gz -C build-${{ matrix.arch }}-${{ matrix.build }}/output/symbols .
-          gzip -c build-${{ matrix.arch }}-xtchain/output/disk.img > ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}.img.gz
+          gzip -c build-${{ matrix.arch }}-${{ matrix.build }}/output/disk.img > ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}-${{ matrix.build }}.img.gz
-          artifact_publish "ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}*.gz" ExectOS
+          artifact_publish "ExectOS-$(date +'%Y%m%d')-${GITHUB_SHA:0:10}-${{ matrix.arch }}-${{ matrix.build }}*.gz" ExectOS

CMakeLists.txt

@@ -1,8 +1,5 @@
-# Detect XTChain toolchain
+# Minimum CMake version requirement
 cmake_minimum_required(VERSION 3.19.0)
-if(NOT CMAKE_VERSION MATCHES "XTC")
-    message(FATAL_ERROR "XTChain not detected or corrupted!")
-endif()
 
 # Lowercase target architecture
 string(TOLOWER ${ARCH} ARCH)
@@ -44,7 +41,7 @@ set(CMAKE_TOOLCHAIN_FILE "sdk/cmake/toolchain.cmake")
 project(EXECTOS)
 
 # Load all the CMake SDK
-include(sdk/cmake/baseaddress.cmake)
+include(sdk/cmake/baseaddress/${ARCH}.cmake)
 include(sdk/cmake/emulation.cmake)
 include(sdk/cmake/functions.cmake)
 include(sdk/cmake/version.cmake)
@@ -58,18 +55,15 @@ add_definitions(-D__XTOS__)
 add_definitions(-DXTOS_SOURCE_DIR="${EXECTOS_SOURCE_DIR}")
 add_definitions(-DXTOS_BINARY_DIR="${EXECTOS_BINARY_DIR}")
 
-# Set libraries target directory
-set(LIBRARY_OUTPUT_PATH ${EXECTOS_BINARY_DIR}/output/library CACHE PATH "Build directory" FORCE)
-
 # Compute __FILE__ definition
 file(RELATIVE_PATH _PATH_PREFIX ${EXECTOS_BINARY_DIR} ${EXECTOS_SOURCE_DIR})
 add_compiler_flags(-D__RELFILE__="&__FILE__[__FILE__[0] == '.' ? sizeof \\\"${_PATH_PREFIX}\\\" - 1 : sizeof XTOS_SOURCE_DIR]")
 
 # Set the virtual disk image size (in MiB)
-set_disk_image_size(32)
+set_disk_image_size(48)
 
 # Build all subprojects
-add_subdirectory(bootdata)
+add_subdirectory(boot)
 add_subdirectory(drivers)
-add_subdirectory(xtldr)
+add_subdirectory(sdk)
 add_subdirectory(xtoskrnl)

CONTRIBUTING.md

@@ -9,8 +9,7 @@ porting drivers, fixing bugs, writing tests, creating documentation, or helping
 love the help.
 
 ## Wish List
-If you are looking for a way to contribute, but you are not sure where to start, check our [IDEAS](IDEAS.md) and
+If you are looking for a way to contribute, but you are not sure where to start, check our list of
-[KNOWN ISSUES](KNOWN_ISSUES.md) pages for suggestions. We try to keep them up to date. You can also check a list of
 [open issues](https://git.codingworkshop.eu.org/xt-sys/exectos/issues). If you find interesting task and you are serious
 about tackling one, feel free to contact us. We will be able to provide a more detailed information and suggestions
 towards getting started.

IDEAS.md

@@ -1,26 +0,0 @@
-## ExectOS Ideas
-This is a list of ideas that migh but not must be realized.
-
-### SDK
- - [ ] Currently XT Development Kit (XTDK) is a garbage. It should be cleaned up the way, it contains all structures
-       and definitions, as well as all routines that are exported and can be used by other components or software
-       dynamically linked. All other routines should be available as well in some form, as some libraries can share
-       code with others (eg. XTLDR calls routines exported by XTOSKRNL). This is partially done, as XTDK has been
-       cleaned up, but still there are routines used by XTLDR.
-
-### XTLDR
- - [ ] Rewrite memory mapping and paging support in bootloader to make it more flexible and architecture independent.
-       This should support paging levels, thus allowing to make a use of PML5 on modern AMD64 processors and increasing
-       the addressable virtual memory from 256TB to 128PB. This is partially done.
- - [ ] Implement a scrolling mechanism to boot menu allowing to show more boot entries than can fit in the box.
-       Currently, the limit is not set, nor check, thus adding more menu items will result in positions displayed under
-       the box.
- - [ ] Implement editing boot menu entries directly from the boot menu. Changes should be runtime only (not stored on
-       disk).
-
-### XTOSKRNL
- - [ ] Implement mechanism for detecting CPU features and checking hardware requirements. If CPU does not meet
-       requirements, it should cause a kernel panic before any non-supported instruction is being used.
- - [ ] Finish framebuffer and terminal implementation. Initialization code is already prepared as well as routines for
-       clearing the screen and drawing single points. Terminal should be instantiable (should be able to create many
-       terminals and switch between them) and work on top of FB. It should define ANSI colors and scrollback buffer.

KNOWN_ISSUES.md

@@ -1,6 +0,0 @@
-## ExectOS Known Issues
-This is a list of well known bugs that exists in all master branch builds.
-
-### XTLDR
- - [ ] EFI Runtime Services are not mapped properly into higher half. They are mapped itself, but all pointers inside
-       that structure point to some physical address that is unavailable after paging is enabled.

README.md

@@ -8,14 +8,14 @@
   <a href="https://git.codingworkshop.eu.org/xt-sys/exectos/actions">
     <img alt="Build Status" src="https://codingworkshop.eu.org/actions.php?project=xt-sys/exectos">
   </a>
-  <a href="https://artifacts.codingworkshop.eu.org/ExectOS">
+  <a href="https://artifacts.codingworkshop.eu.org/ExectOS/?C=M&O=D">
     <img alt="CI/CD Artifacts" src="https://img.shields.io/badge/Download-%F0%9F%A1%87-blueviolet">
   </a>
   <a href="https://git.codingworkshop.eu.org/xt-sys/exectos/src/branch/master/COPYING.md">
     <img alt="License" src="https://img.shields.io/badge/License-GPLv3-blue.svg">
   </a>
-  <a href="https://codeium.com/">
+  <a href="https://exectos.eu.org/ai-assisted">
-    <img alt="Codeium" src="https://img.shields.io/badge/Powered%20By-Codeium-09B6A2?logo=Codeium">
+    <img alt="AI Assisted" src="https://img.shields.io/badge/AI-Assisted-darkcyan">
   </a>
   <a href="https://github.com/sponsors/xt-sys/">
     <img alt="Sponsor" src="https://img.shields.io/badge/Sponsor-%E2%9D%A4-red?logo=GitHub">
@@ -58,26 +58,25 @@ design, it requires a modern EFI enabled hardware. It is not possible currently
 
 # Source structure
 | Directory        | Description                                                  |
-|-------------|----------------------------------------------------------|
+|------------------|--------------------------------------------------------------|
-| bootdata    | default configuration and data needed to boot XTOS       |
+| boot/bootdata    | default configuration and data needed to boot XTOS           |
+| boot/bootsect    | boot sector code (MBR & VBR) initializing the boot process   |
+| boot/xtldr       | XTOS boot loader source code                                 |
 | drivers          | XT native drivers source code                                |
-| sdk/cmake   | Host toolchain configuration and build-related functions |
+| sdk/cmake        | host toolchain configuration and build-related functions     |
+| sdk/firmware     | firmware enabling XTOS to boot on virtual machines           |
 | sdk/xtdk         | XT Software Development Kit headers                          |
 | services         | integral subsystems services source code                     |
 | subsystems       | environment subsystems source code                           |
 | xtoskrnl         | XTOS kernel source code                                      |
-| xtldr       | XTOS boot loader source code                             |
 
 # Build
-XTOS can be built only by using [XTChain](https://git.codingworkshop.eu.org/xt-sys/xtchain), a special toolchain
+XTOS can only be built using [XTchain](https://git.codingworkshop.eu.org/xt-sys/xtchain), a dedicated toolchain designed
-prepared for compiling XT software. Currently, there is only a Linux version available, so a Linux distribution or WSL
+specifically for compiling XT software. XTChain is currently available for both Linux and Windows. Detailed instructions
-is needed. If XTChain is already installed and available, then building ExectOS is quiet easy. First, open a terminal
+on how to configure and run XTChain can be found [here](https://exectos.eu.org/contributing/setting-up-xtchain).
-or WSL console and type the following command to launch XTChain build console:
+
-```
+With the XTchain environment already running, navigate to the directory containing the ExectOS source code and use the
-xtchain
+following commands to set the target build architecture and configure the sources:
-```
-While the console is already running, navigate to the directory containing ExectOS source code and use the following
-commands to first set target build architecture and configure the sources:
 ```
 charch [i686|amd64]
 chbuild [DEBUG|RELEASE]

boot/CMakeLists.txt

@@ -0,0 +1,3 @@
+add_subdirectory(bootdata)
+add_subdirectory(bootsect)
+add_subdirectory(xtldr)

boot/bootdata/xtldr/xtldr.ini

@@ -40,6 +40,30 @@ SystemPath=multi(0)disk(0)rdisk(0)partition(1)/ExectOS
 KernelFile=xtoskrnl.exe
 Parameters=DEBUG=COM1,115200
 
+[ExectOS_FBDEBUG]
+SystemName="ExectOS Operating System (FBDEBUG)"
+SystemType=XTOS
+BootModules=xtos_o
+SystemPath=multi(0)disk(0)rdisk(0)partition(1)/ExectOS
+KernelFile=xtoskrnl.exe
+Parameters=DEBUG=COM1,115200;SCREEN
+
+[ExectOS_NOXPA]
+SystemName="ExectOS Operating System (NOXPA)"
+SystemType=XTOS
+BootModules=xtos_o
+SystemPath=multi(0)disk(0)rdisk(0)partition(1)/ExectOS
+KernelFile=xtoskrnl.exe
+Parameters=DEBUG=COM1,115200 NOXPA
+
+[ExectOS_NOXPA_FBDEBUG]
+SystemName="ExectOS Operating System (NOXPA / FBDEBUG)"
+SystemType=XTOS
+BootModules=xtos_o
+SystemPath=multi(0)disk(0)rdisk(0)partition(1)/ExectOS
+KernelFile=xtoskrnl.exe
+Parameters=DEBUG=COM1,115200;SCREEN NOXPA
+
 [Windows]
 SystemName="Microsoft Windows 2000"
 SystemType=NT50

boot/bootsect/CMakeLists.txt

@@ -0,0 +1,8 @@
+# XT Boot Sector
+PROJECT(BOOTSECT)
+
+add_definitions("-DARCH_ESP_SOURCE=\\\"${ARCH}/cpu.S\\\"")
+
+# Compile boot sectors
+compile_bootsector(mbrboot ${BOOTSECT_SOURCE_DIR}/mbrboot.S 0x7C00 Start)
+compile_bootsector(espboot ${BOOTSECT_SOURCE_DIR}/espboot.S 0x7C00 Start)

boot/bootsect/amd64/cpu.S

@@ -0,0 +1,144 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            boot/bootsect/amd64/cpu.S
+ * DESCRIPTION:     Low-level support for CPU initialization
+ * DEVELOPERS:      Aiken Harris <harraiken91@gmail.com>
+ */
+
+
+BuildPageMap:
+    /* Generate page map for first 1GB of memory */
+    pushaw
+    pushw %es
+    cld
+    movw $(0x1000 / 16), %ax
+    movw %ax, %es
+    xorw %di, %di
+    movl $(0x2000 | 0x07), %eax
+    stosl
+    xorl %eax, %eax
+    movw $1021, %cx
+    rep stosl
+    movw $(0x2000 / 16), %ax
+    movw %ax, %es
+    xorw %di, %di
+    movl $(0x3000 | 0x07), %eax
+    stosl
+    xorl %eax, %eax
+    movw $1021, %cx
+    rep stosl
+    movw $(0x3000 / 16), %ax
+    movw %ax, %es
+    xorw %di, %di
+    movw $512, %cx
+    movl $0x00000083, %eax
+.BuildPageMapLoop:
+    /* Identity map 512 pages of 2MB */
+    movl %eax, %es:(%di)
+    addl $2097152, %eax
+    addw $0x08, %di
+    loop .BuildPageMapLoop
+    popw %es
+    popaw
+    ret
+
+InitializeCpu:
+    /* Check if CPU supports CPUID, long mode and PAE */
+    pushal
+    pushfl
+    popl %eax
+    movl %eax, %ebx
+    xorl $0x00200000, %eax
+    pushl %eax
+    popfl
+    pushfl
+    popl %eax
+    cmpl %ebx, %eax
+    je CpuUnsupported
+    movl $0x01, %eax
+    cpuid
+    testl $0x40, %edx
+    jz CpuUnsupported
+    movl $0x80000000, %eax
+    cpuid
+    cmpl $0x80000000, %eax
+    jbe CpuUnsupported
+    movl $0x80000001, %eax
+    cpuid
+    testl $0x20000000, %edx
+    jz CpuUnsupported
+    popal
+    call LoadGdt
+    ret
+
+LoadGdt:
+    /* Load Global Descriptor Table */
+    lgdt .GdtPointer
+    ret
+
+RunStage2:
+    /* Switch to long mode and pass control to Stage 2 */
+    call BuildPageMap
+    call ParseExecutableHeader
+    xorl %edx, %edx
+    pushl %edx
+    pushl %eax
+    cli
+    xorw %ax, %ax
+    movw %ax, %ds
+    movw %ax, %es
+    movw %ax, %fs
+    movw %ax, %gs
+    movw %ax, %ss
+    movl %cr4, %eax
+    orl $0x00A0, %eax
+    movl %eax, %cr4
+    movl $0x00001000, %eax
+    movl %eax, %cr3
+    movl $0xC0000080, %ecx
+    rdmsr
+    orl $0x00000100, %eax
+    wrmsr
+    movl %cr0, %eax
+    orl $0x80000001, %eax
+    movl %eax, %cr0
+    ljmp $0x10, $.Stage2LongMode
+.code64
+.Stage2LongMode:
+    /* Set segments and stack, then jump to Stage 2 */
+    movw $0x18, %ax
+    movw %ax, %ds
+    movw %ax, %es
+    movw %ax, %ss
+    xorw %ax, %ax
+    movw %ax, %fs
+    movw %ax, %gs
+    popq %rax
+    xorq %rbx, %rbx
+    xorq %rcx, %rcx
+    xorq %rdx, %rdx
+    xorq %rsi, %rsi
+    xorq %rdi, %rdi
+    xorq %rbp, %rbp
+    jmp *%rax
+
+.code16
+.GdtDescriptor:
+    /* Global Descriptor Table */
+    .quad 0x0000000000000000
+    .quad 0x0000000000000000
+    .quad 0x00AF9A000000FFFF
+    .quad 0x00CF92000000FFFF
+    .quad 0x00009E000000FFFF
+    .quad 0x000092000000FFFF
+    .quad 0x00CF9B000000FFFF
+
+.GdtPointer:
+    /* Pointer to Global Descriptor Table */
+    .word .GdtPointer - .GdtDescriptor - 1
+    .long .GdtDescriptor
+
+.Stage2FileName:
+    /* Name of Stage 2 executable file */
+    .ascii "BOOTX64 EFI"

boot/bootsect/espboot.S

@@ -0,0 +1,529 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            boot/bootsect/espboot.S
+ * DESCRIPTION:     XT Boot Loader ESP boot code (FAT32)
+ * DEVELOPERS:      Aiken Harris <harraiken91@gmail.com>
+ */
+
+.text
+.code16
+
+
+.global Start
+Start:
+    /* Jump to the real start to omit the BPB (BIOS Parameter Block) */
+    jmp RealStart
+    nop
+
+/* BIOS Parameter Block */
+OsName:
+    .ascii "XTOS "
+OsVersion:
+    .ascii "1.0"
+BytesPerSector:
+    .word 512
+SectorsPerCluster:
+    .byte 2
+ReservedSectors:
+    .word 8
+FatCopies:
+    .byte 1
+RootDirEntries:
+    .word 1024
+TotalSectors:
+    .word 0
+MediaType:
+    .byte 0xF8
+SectorsPerFat:
+    .word 0
+SectorsPerTrack:
+    .word 17
+NumberOfHeads:
+    .word 0
+HiddenSectors:
+    .long 0
+TotalBigSectors:
+    .long 0x200000
+BigSectorsPerFat:
+    .long 0x1FE0
+ExtendedFlags:
+    .word 0
+FsVersion:
+    .word 0
+RootDirStartCluster:
+    .long 0
+FSInfoSector:
+    .word 0
+BackupBootSector:
+    .word 6
+Reserved:
+    .fill 12, 1, 0
+DriveNumber:
+    .byte 0x80
+CurrentHead:
+    .byte 0
+Signature:
+    .byte 0x29
+SerialNumber:
+    .long 0
+VolumeLabel:
+    .ascii "NO NAME    "
+FileSystem:
+    .ascii "FAT32   "
+
+RealStart:
+    /* Set segments and stack */
+    cli
+    cld
+    xorw %ax, %ax
+    movw %ax, %ds
+    movw %ax, %es
+    movw %ax, %ss
+    movw $0x7C00, %bp
+    leaw -16(%bp), %sp
+    sti
+
+    /* Get drive number */
+    cmpb $0xFF, DriveNumber - Start(%bp)
+    jne GetDriveParameters
+    movb %dl, DriveNumber - Start(%bp)
+
+GetDriveParameters:
+    /* Get drive parameters from the BIOS */
+    movb DriveNumber - Start(%bp), %dl
+    movb $0x08, %ah
+    movb $0x00, %al
+    int $0x13
+    jnc GetDriveSize
+    movw $0xFFFF, %cx
+    movb %cl, %dh
+
+GetDriveSize:
+    /* Get drive size from the BIOS */
+    movzbl %dh, %eax
+    incw %ax
+    movzbl %cl, %edx
+    andb $0x3F, %dl
+    mulw %dx
+    xchgb %cl, %ch
+    shrb $0x06, %ch
+    incw %cx
+    movzwl %cx, %ecx
+    mull %ecx
+    movl %eax, %edi
+
+VerifyBiosParameterBlock:
+    /* Verify the FAT32 BPB */
+    cmpw $0x00, SectorsPerFat - Start(%bp)
+    jne FsError
+    cmpw $0x00, FsVersion - Start(%bp)
+    ja FsError
+
+ReadExtraCode:
+    /* Read second VBR sector with extra boot code (3 sectors starting from sector 2) */
+    movl HiddenSectors - Start(%bp), %eax
+    addl $0x02, %eax
+    movw $0x03, %cx
+    xorw %bx, %bx
+    movw %bx, %es
+    movw $0x7E00, %bx
+    call ReadSectors
+    jmp StartExtraCode
+
+ReadSectors:
+    /* Check for extended BIOS functions and use it only if available */
+    pushw %es
+    pushal
+    movb $0x41, %ah
+    movw $0x55AA, %bx
+    movb DriveNumber - Start(%bp), %dl
+    int $0x13
+    jc .ReadCHS
+    cmpw $0xAA55, %bx
+    jne .ReadCHS
+    testb $0x01, %cl
+    jz .ReadCHS
+
+    /* Verify drive size and determine whether to use CHS or LBA */
+    cmpl %edi, %eax
+    jnb .ReadLBA
+
+.ReadCHS:
+    /* Read sectors using CHS */
+    popal
+
+.CHSLoop:
+    /* Read sector by sector using CHS */
+    pushw %cx
+    pushal
+    xorl %edx, %edx
+    movzwl SectorsPerTrack - Start(%bp), %ecx
+    divl %ecx
+    incb %dl
+    movb %dl, %cl
+    movl %eax, %edx
+    shrl $0x10, %edx
+    divw NumberOfHeads - Start(%bp)
+    movb %dl, %dh
+    movb DriveNumber - Start(%bp), %dl
+    movb %al, %ch
+    rorb $0x01, %ah
+    rorb $0x01, %ah
+    orb %ah, %cl
+    movw $0x0201, %ax
+    int $0x13
+    popal
+    popw %cx
+    jc DiskError
+    incl %eax
+    movw %es, %dx
+    addw $0x20, %dx
+    movw %dx, %es
+    loop .CHSLoop
+    popw %es
+    ret
+
+.ReadLBA:
+    /* Prepare DAP packet and read sectors using LBA */
+    popal
+    pushw %cx
+    pushal
+    pushw $0x00
+    pushw $0x00
+    pushl %eax
+    pushw %es
+    pushw %bx
+    pushw %cx
+    pushw $0x10
+    movw %sp, %si
+    movb DriveNumber - Start(%bp), %dl
+    movb $0x42, %ah
+    int $0x13
+    jc DiskError
+    addw $0x10, %sp
+    popal
+    popw %si
+    pushw %bx
+    movzwl %si, %ebx
+    addl %ebx, %eax
+    shll $0x05, %ebx
+    movw %es, %dx
+    addw %bx, %dx
+    movw %dx, %es
+    popw %bx
+    subw %si, %cx
+    jnz .ReadLBA
+    popw %es
+    ret
+
+DiskError:
+    /* Display disk error message and reboot */
+    movw $.MsgDiskError, %si
+    call Print
+    jmp Reboot
+
+FsError:
+    /* Display FS error message and reboot */
+    movw $.MsgFsError, %si
+    call Print
+    jmp Reboot
+
+Print:
+    /* Simple routine to print messages */
+    lodsb
+    orb     %al, %al
+    jz      .DonePrint
+    movb    $0x0E, %ah
+    movw    $0x07, %bx
+    int     $0x10
+    jmp     Print
+.DonePrint:
+    retw
+
+Reboot:
+    /* Display a message, wait for a key press and reboot */
+    movw $.MsgAnyKey, %si
+    call Print
+    xorw %ax, %ax
+    int $0x16
+    int $0x19
+
+.MsgAnyKey:
+    .ascii "Press any key to restart...\r\n\0"
+
+.MsgDiskError:
+    .ascii "Disk error!\r\n\0"
+
+.MsgFsError:
+    .ascii "File system error!\r\n\0"
+
+/* Fill the rest of the VBR with zeros and add VBR signature at the end */
+.fill (510 - (. - Start)), 1, 0
+.word 0xAA55
+
+
+StartExtraCode:
+    /* Load XTLDR file from disk */
+    call LoadStage2
+
+    /* Enable A20 gate */
+    call EnableA20
+
+    /* Call architecture specific initialization code */
+    call InitializeCpu
+
+    /* Jump to Stage2 */
+    call RunStage2
+
+Clear8042:
+    /* Clear 8042 PS/2 buffer */
+    nop
+    nop
+    nop
+    nop
+    inb $0x64, %al
+    cmpb $0xff, %al
+    je .Clear8042_Done
+    testb $0x02, %al
+    jnz Clear8042
+.Clear8042_Done:
+    ret
+
+EnableA20:
+    /* Enable A20 gate */
+    pushaw
+    call Clear8042
+    movb $0xD1, %al
+    outb %al, $0x64
+    call Clear8042
+    movb $0xDF, %al
+    outb %al, $0x60
+    call Clear8042
+    movb $0xFF, %al
+    outb %al, $0x64
+    call Clear8042
+    popaw
+    ret
+
+FindFatEntry:
+    /* Find a file or directory in the FAT table */
+    pushw %bx
+    pushw %cx
+    pushw %dx
+    pushw %si
+    pushw %di
+.FindFatCluster:
+    /* Find FAT32 cluster holding the entry */
+    cmp $0x0FFFFFF8, %eax
+    jae .FindEntryFail
+    pushl %eax
+    movw $0x0200, %bx
+    movw %bx, %es
+    call ReadCluster
+    popl %eax
+    movb SectorsPerCluster - Start(%bp), %cl
+    shlw $0x04, %cx
+    xorw %di, %di
+.FindEntryLoop:
+    /* Find the entry */
+    movb %es:(%di), %al
+    cmpb $0x00, %al
+    je .FindEntryFail
+    cmpb $0xE5, %al
+    je .FindSkipEntry
+    movb %es:0x0B(%di), %ah
+    cmpb $0x0F, %ah
+    je .FindSkipEntry
+    pushw %di
+    pushw %si
+    pushw %cx
+    movw $0x0B, %cx
+    repe cmpsb
+    popw %cx
+    popw %si
+    popw %di
+    jnz .FindSkipEntry
+    movw %es:0x1A(%di), %ax
+    movw %es:0x14(%di), %dx
+    shll $0x10, %edx
+    orl %edx, %eax
+    clc
+    jmp .FindEntryDone
+.FindSkipEntry:
+    /* Skip to the next entry */
+    addw $0x20, %di
+    decw %cx
+    jnz .FindEntryLoop
+    call GetFatEntry
+    jmp .FindFatCluster
+.FindEntryFail:
+    /* Error, file/directory not found */
+    stc
+.FindEntryDone:
+    /* Clean up the stack */
+    popw %di
+    popw %si
+    popw %dx
+    popw %cx
+    popw %bx
+    ret
+
+GetFatEntry:
+    /* Get FAT32 sector and offset from FAT table */
+    shll $0x02, %eax
+    movl %eax, %ecx
+    xorl %edx, %edx
+    movzwl BytesPerSector - Start(%bp), %ebx
+    pushl %ebx
+    divl %ebx
+    movzwl ReservedSectors - Start(%bp), %ebx
+    addl %ebx, %eax
+    movl HiddenSectors - Start(%bp), %ebx
+    addl %ebx, %eax
+    popl %ebx
+    decl %ebx
+    andl %ebx, %ecx
+    movzwl ExtendedFlags - Start(%bp), %ebx
+    andw $0x0F, %bx
+    jz LoadFatSector
+    cmpb FatCopies - Start(%bp), %bl
+    jae FsError
+    pushl %eax
+    movl BigSectorsPerFat - Start(%bp), %eax
+    mull %ebx
+    popl %edx
+    addl %edx, %eax
+
+LoadFatSector:
+    /* Load FAT32 sector from disk */
+    pushl %ecx
+    movw $0x9000, %bx
+    movw %bx, %es
+    cmpl %esi, %eax
+    je .LoadFatSectorDone
+    movl %eax, %esi
+    xorw %bx, %bx
+    movw $0x01, %cx
+    call ReadSectors
+.LoadFatSectorDone:
+    /* Clean up the stack */
+    popl %ecx
+    movl %es:(%ecx), %eax
+    andl $0x0FFFFFFF, %eax
+    ret
+
+LoadStage2:
+    /* Load Stage2 executable, first find file in the path */
+    movl $0xFFFFFFFF, %esi
+    pushl %esi
+    movl 0x7C2C, %eax
+    movw $.EfiDirName, %si
+    call FindFatEntry
+    jc Stage2NotLoaded
+    movw $.BootDirName, %si
+    call FindFatEntry
+    jc Stage2NotLoaded
+    movw $.Stage2FileName, %si
+    call FindFatEntry
+    jc Stage2NotLoaded
+    popl %esi
+    /* Load XTLDR file from disk */
+    cmpl $0x02, %eax
+    jb FileNotFound
+    cmpl $0x0FFFFFF8, %eax
+    jae FileNotFound
+    movw $(0xF800 / 16), %bx
+    movw %bx, %es
+.LoadStage2Loop:
+    /* Load file data from disk */
+    pushl %eax
+    xorw %bx, %bx
+    pushw %es
+    call ReadCluster
+    popw %es
+    xorw %bx, %bx
+    movb SectorsPerCluster - Start(%bp), %bl
+    shlw $0x05, %bx
+    movw %es, %ax
+    addw %bx, %ax
+    movw %ax, %es
+    popl %eax
+    pushw %es
+    call GetFatEntry
+    popw %es
+    cmpl $0x0FFFFFF8, %eax
+    jb .LoadStage2Loop
+    ret
+
+ParseExecutableHeader:
+    /* Parse Stage2 PE/COFF executable header */
+    pushw %es
+    movw $(0xF800 / 16), %ax
+    movw %ax, %es
+    movl %es:60, %eax
+    addl $(4 + 20), %eax
+    movl %es:16(%eax), %eax
+    addl $0xF800, %eax
+    popw %es
+    ret
+
+ReadCluster:
+    /* Read FAT32 cluster from disk */
+    decl %eax
+    decl %eax
+    xorl %edx, %edx
+    movzbl SectorsPerCluster - Start(%bp), %ebx
+    mull %ebx
+    pushl %eax
+    xorl %edx, %edx
+    movzbl FatCopies - Start(%bp), %eax
+    mull BigSectorsPerFat - Start(%bp)
+    movzwl ReservedSectors - Start(%bp), %ebx
+    addl %ebx, %eax
+    addl HiddenSectors - Start(%bp), %eax
+    popl %ebx
+    addl %ebx, %eax
+    xorw %bx, %bx
+    movzbw SectorsPerCluster - Start(%bp), %cx
+    call ReadSectors
+    ret
+
+/* Include architecture specific code */
+.include ARCH_ESP_SOURCE
+
+CpuUnsupported:
+    /* Display CPU unsupported message and reboot */
+    popal
+    movw $.MsgCpuUnsupported, %si
+    call Print
+    jmp Reboot
+
+FileNotFound:
+    /* Display XTLDR not found message and reboot */
+    movw $.MsgXtLdrNotFound, %si
+    call Print
+    jmp Reboot
+
+Stage2NotLoaded:
+    /* Clean up the stack and display XTLDR not found message and reboot */
+    popl %esi
+    jmp FileNotFound
+
+.BootDirName:
+    /* Boot directory name */
+    .ascii "BOOT       "
+
+.EfiDirName:
+    /* EFI directory name */
+    .ascii "EFI        "
+
+.MsgCpuUnsupported:
+    .ascii "CPU not supported!\r\n\0"
+
+.MsgXtLdrNotFound:
+    .ascii "XTLDR Stage2 not found!\r\n\0"
+
+/* Fill the rest of the extra VBR with zeros and add signature */
+.fill (2043 - (. - Start)), 1, 0
+.ascii "XTLDR"

boot/bootsect/i686/cpu.S

@@ -0,0 +1,124 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            boot/bootsect/i686/cpu.S
+ * DESCRIPTION:     Low-level support for CPU initialization
+ * DEVELOPERS:      Aiken Harris <harraiken91@gmail.com>
+ */
+
+
+BuildPageMap:
+    /* Generate page map for first 16MB of memory */
+    pushaw
+    pushw %es
+    cld
+    movw $(0x1000 >> 0x04), %ax
+    movw %ax, %es
+    xorw %di, %di
+    movl $(0x2000 | 0x03), %eax
+    stosl
+    movl $(0x3000 | 0x03), %eax
+    stosl
+    movl $(0x4000 | 0x03), %eax
+    stosl
+    movl $(0x5000 | 0x03), %eax
+    stosl
+    xorl %eax, %eax
+    movw $(1024 - 4), %cx
+    rep stosl
+    movl $0x00000003, %eax
+    movl $4, %edx
+    movw $(0x2000 >> 0x04), %bx
+.BuildPageMapLoop:
+    /* Identity map 1024 pages of 4KB */
+    movw %bx, %es
+    xorw %di, %di
+    pushl %edx
+    movw $1024, %cx
+.FillPageMapTable:
+    /* Fill the page table */
+    movl %eax, %es:(%di)
+    addl $4096, %eax
+    addw $0x04, %di
+    loop .FillPageMapTable
+    popl %edx
+    addw $(0x1000 >> 0x04), %bx
+    decl %edx
+    jnz .BuildPageMapLoop
+    popw %es
+    popaw
+    ret
+
+InitializeCpu:
+    /* Check if CPU supports CPUID */
+    pushal
+    pushfl
+    popl %eax
+    movl %eax, %ebx
+    xorl $0x00200000, %eax
+    pushl %eax
+    popfl
+    pushfl
+    popl %eax
+    cmpl %ebx, %eax
+    je CpuUnsupported
+    popal
+    call LoadGdt
+    ret
+
+LoadGdt:
+    /* Load Global Descriptor Table */
+    lgdt .GdtPointer
+    ret
+
+RunStage2:
+    /* Switch to protected mode and pass control to Stage 2 */
+    call BuildPageMap
+    call ParseExecutableHeader
+    pushl %eax
+    cli
+    movl %cr0, %eax
+    orl $0x01, %eax
+    movl %eax, %cr0
+    ljmp $0x08, $.Stage2ProtectedMode
+.code32
+.Stage2ProtectedMode:
+    /* Set segments and stack, then jump to Stage 2 */
+    movw $0x10, %ax
+    movw %ax, %ds
+    movw %ax, %es
+    movw %ax, %ss
+    xorw %ax, %ax
+    movw %ax, %fs
+    movw %ax, %gs
+    popl %eax
+    xorl %ebx, %ebx
+    xorl %ecx, %ecx
+    xorl %edx, %edx
+    xorl %esi, %esi
+    xorl %edi, %edi
+    xorl %ebp, %ebp
+    movl $0x1000, %ebx
+    movl %ebx, %cr3
+    movl %cr0, %ebx
+    orl $0x80000000, %ebx
+    movl %ebx, %cr0
+    jmp *%eax
+
+.code16
+.GdtDescriptor:
+    /* Global Descriptor Table */
+    .quad 0x0000000000000000
+    .quad 0x00CF9A000000FFFF
+    .quad 0x00CF92000000FFFF
+    .quad 0x00009E000000FFFF
+    .quad 0x000092000000FFFF
+
+.GdtPointer:
+    /* Pointer to Global Descriptor Table */
+    .word .GdtPointer - .GdtDescriptor - 1
+    .long .GdtDescriptor
+
+.Stage2FileName:
+    /* Name of Stage 2 executable file */
+    .ascii "BOOTIA32EFI"

boot/bootsect/mbrboot.S

@@ -0,0 +1,154 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            boot/bootsect/amd64/mbrboot.S
+ * DESCRIPTION:     XT Boot Loader MBR boot code
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ *                  Aiken Harris <aiken@codingworkshop.eu.org>
+ */
+
+.text
+.code16
+
+
+.global Start
+Start:
+    /* Set segments and stack */
+    cli
+    cld
+    xorw %ax, %ax
+    movw %ax, %ds
+    movw %ax, %es
+    movw %ax, %ss
+    movw $0x7C00, %bp
+    leaw -16(%bp), %sp
+    sti
+
+    /* Relocate MBR to 1FE0:7C00 */
+    movw $0x1FE0, %ax
+    movw %ax, %es
+    movw %bp, %si
+    movw %bp, %di
+    movw $256, %cx
+    rep movsw
+
+    /* Jump to the relocated MBR code */
+    jmp $0x1FE0, $RealStart
+
+RealStart:
+    /* Set segments */
+    movw %ax, %ds
+    movw %ax, %es
+    movw %ax, %ss
+
+    /* Print welcome message */
+    leaw .MsgXtosBoot, %si
+    call Print
+
+    /* Get BIOS boot drive and partition table offset */
+    lea 0x1BE(%bp), %si
+    movb %dl, .BootDrive
+    xorw %cx, %cx
+
+FindActivePartition:
+    /* Look for active partition */
+    movb (%si), %al
+    cmpb $0x80, %al
+    je PartitionFound
+    addw $16, %si
+    incw %cx
+    cmpw $4, %cx
+    jne FindActivePartition
+    jmp PartitionNotFound
+
+PartitionFound:
+    /* Save LBA start */
+    movl 8(%si), %eax
+    movl %eax, .LbaStart
+
+    /* Prepare Disk Address Packet (DAP) */
+    lea .Dap, %si
+    movb $0x10, 0(%si)
+    movb $0x00, 1(%si)
+    movw $1, 2(%si)
+    movw $0x7C00, 4(%si)
+    movw $0x0000, 6(%si)
+    movl .LbaStart, %eax
+    movl %eax, 8(%si)
+
+    /* Read Volume Boot Record (VBR) */
+    movb $0x42, %ah
+    movb .BootDrive, %dl
+    int $0x13
+    jc VbrReadFail
+
+    /* Verify VBR signature */
+    cmpw $0xAA55, (0x7C00 + 0x01FE)
+    jne InvalidSignature
+
+    /* Jump to the VBR code */
+    jmp $0x0000, $0x7C00
+
+InvalidSignature:
+    /* Invalid signature error */
+    leaw .MsgInvalidSignature, %si
+    call Print
+    jmp HaltSystem
+
+PartitionNotFound:
+    /* Active partition not found error */
+    leaw .MsgPartitionNotFound, %si
+    call Print
+    jmp HaltSystem
+
+VbrReadFail:
+    /* VBR read failed error */
+    leaw .MsgVbrReadFail, %si
+    call Print
+    jmp HaltSystem
+
+HaltSystem:
+    /* Disable interrupts and stop the CPU */
+    cli
+    hlt
+    jmp HaltSystem
+
+Print:
+    /* Simple routine to print messages */
+    lodsb
+    orb     %al, %al
+    jz      DonePrint
+    movb    $0x0E, %ah
+    movw    $0x07, %bx
+    int     $0x10
+    jmp     Print
+DonePrint:
+    retw
+
+.BootDrive:
+    /* Storage for the boot drive number */
+    .byte 0
+
+.Dap:
+    /* Storage for the Disk Address Packet (DAP) */
+    .fill 16, 1, 0
+
+.LbaStart:
+    /* Storage for the LBA start */
+    .long 0
+
+.MsgInvalidSignature:
+    .asciz "Invalid partition signature!"
+
+.MsgPartitionNotFound:
+    .asciz "Bootable partition not found!"
+
+.MsgVbrReadFail:
+    .asciz "VBR read failed!"
+
+.MsgXtosBoot:
+    .asciz "Starting XTOS boot loader...\r\n"
+
+/* Fill the rest of the MBR with zeros and add MBR signature at the end */
+.fill (510 - (. - Start)), 1, 0
+.word 0xAA55

boot/xtldr/CMakeLists.txt

@@ -11,23 +11,24 @@ include_directories(
 
 # Specify list of library source code files
 list(APPEND LIBXTLDR_SOURCE
-    ${XTLDR_SOURCE_DIR}/library/modproto.c)
+    ${XTLDR_SOURCE_DIR}/library/modproto.cc)
 
 # Specify list of source code files
 list(APPEND XTLDR_SOURCE
-    ${XTLDR_SOURCE_DIR}/arch/${ARCH}/memory.c
+    ${XTLDR_SOURCE_DIR}/arch/${ARCH}/memory.cc
-    ${XTLDR_SOURCE_DIR}/config.c
+    ${XTLDR_SOURCE_DIR}/biosutil.cc
-    ${XTLDR_SOURCE_DIR}/console.c
+    ${XTLDR_SOURCE_DIR}/bootutil.cc
-    ${XTLDR_SOURCE_DIR}/debug.c
+    ${XTLDR_SOURCE_DIR}/config.cc
-    ${XTLDR_SOURCE_DIR}/efiutils.c
+    ${XTLDR_SOURCE_DIR}/console.cc
-    ${XTLDR_SOURCE_DIR}/globals.c
+    ${XTLDR_SOURCE_DIR}/data.cc
-    ${XTLDR_SOURCE_DIR}/hardware.c
+    ${XTLDR_SOURCE_DIR}/debug.cc
-    ${XTLDR_SOURCE_DIR}/memory.c
+    ${XTLDR_SOURCE_DIR}/efiutils.cc
-    ${XTLDR_SOURCE_DIR}/protocol.c
+    ${XTLDR_SOURCE_DIR}/memory.cc
-    ${XTLDR_SOURCE_DIR}/shell.c
+    ${XTLDR_SOURCE_DIR}/protocol.cc
-    ${XTLDR_SOURCE_DIR}/textui.c
+    ${XTLDR_SOURCE_DIR}/shell.cc
-    ${XTLDR_SOURCE_DIR}/volume.c
+    ${XTLDR_SOURCE_DIR}/textui.cc
-    ${XTLDR_SOURCE_DIR}/xtldr.c)
+    ${XTLDR_SOURCE_DIR}/volume.cc
+    ${XTLDR_SOURCE_DIR}/xtldr.cc)
 
 # Link static XTLDR library
 add_library(libxtldr ${LIBXTLDR_SOURCE})
@@ -38,6 +39,9 @@ add_executable(xtldr ${XTLDR_SOURCE})
 # Add linker libraries
 target_link_libraries(xtldr libxtos)
 
+# Add linker options
+target_link_options(xtldr PRIVATE /ALIGN:512)
+
 # Set proper binary name and install target
 if(ARCH STREQUAL "i686")
 	set(BINARY_NAME "bootia32")

boot/xtldr/arch/amd64/memory.cc

@@ -1,12 +1,13 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/arch/amd64/memory.c
+ * FILE:            xtldr/arch/amd64/memory.cc
  * DESCRIPTION:     XT Boot Loader AMD64 specific memory management
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ *                  Aiken Harris <harraiken91@gmail.com>
  */
 
-#include <xtldr.h>
+#include <xtldr.hh>
 
 
 /**
@@ -24,17 +25,19 @@
  */
 XTCDECL
 EFI_STATUS
-BlBuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
+Memory::BuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
                      IN ULONG_PTR SelfMapAddress)
 {
     PLIST_ENTRY ListEntry, ModulesList, ModulesListEntry;
     PXTBL_MEMORY_MAPPING Mapping;
     PXTBL_MODULE_INFO ModuleInfo;
     EFI_PHYSICAL_ADDRESS Address;
+    PVOID LoaderBase;
+    ULONGLONG LoaderSize;
     EFI_STATUS Status;
 
     /* Allocate pages for the Page Map */
-    Status = BlAllocateMemoryPages(1, &Address);
+    Status = AllocatePages(AllocateAnyPages, 1, &Address);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Memory allocation failure */
@@ -43,18 +46,27 @@ BlBuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
 
     /* Assign and zero-fill memory used by page mappings */
     PageMap->PtePointer = (PVOID)(UINT_PTR)Address;
-    RtlZeroMemory(PageMap->PtePointer, EFI_PAGE_SIZE);
+    RTL::Memory::ZeroMemory(PageMap->PtePointer, EFI_PAGE_SIZE);
 
     /* Add page mapping itself to memory mapping */
-    Status = BlpSelfMapPml(PageMap, SelfMapAddress);
+    Status = Memory::SelfMapPml(PageMap, SelfMapAddress);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* PML mapping failed */
         return Status;
     }
 
+    /* Map the trampoline code area */
+    Status = MapVirtualMemory(PageMap, (PVOID)MM_TRAMPOLINE_ADDRESS,(PVOID)MM_TRAMPOLINE_ADDRESS,
+                              1, LoaderFirmwareTemporary);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Mapping trampoline code failed */
+        return Status;
+    }
+
     /* Get list of XTLDR modules */
-    ModulesList = BlGetModulesList();
+    ModulesList = Protocol::GetModulesList();
     ModulesListEntry = ModulesList->Flink;
     while(ModulesListEntry != ModulesList)
     {
@@ -62,7 +74,7 @@ BlBuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
         ModuleInfo = CONTAIN_RECORD(ModulesListEntry, XTBL_MODULE_INFO, Flink);
 
         /* Map module code */
-        Status = BlMapVirtualMemory(PageMap, ModuleInfo->ModuleBase, ModuleInfo->ModuleBase,
+        Status = MapVirtualMemory(PageMap, ModuleInfo->ModuleBase, ModuleInfo->ModuleBase,
                                   EFI_SIZE_TO_PAGES(ModuleInfo->ModuleSize), LoaderFirmwareTemporary);
 
         /* Check if mapping succeeded */
@@ -76,12 +88,15 @@ BlBuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
         ModulesListEntry = ModulesListEntry->Flink;
     }
 
+    /* Get boot loader image information */
+    XtLoader::GetLoaderImageInformation(&LoaderBase, &LoaderSize);
+
     /* Make sure boot loader image base and size are set */
-    if(BlpStatus.LoaderBase && BlpStatus.LoaderSize)
+    if(LoaderBase && LoaderSize)
     {
         /* Map boot loader code as well */
-        Status = BlMapVirtualMemory(PageMap, BlpStatus.LoaderBase, BlpStatus.LoaderBase,
+        Status = MapVirtualMemory(PageMap, LoaderBase, LoaderBase,
-                                    EFI_SIZE_TO_PAGES(BlpStatus.LoaderSize), LoaderFirmwareTemporary);
+                                  EFI_SIZE_TO_PAGES(LoaderSize), LoaderFirmwareTemporary);
         if(Status != STATUS_EFI_SUCCESS)
         {
             /* Mapping boot loader code failed */
@@ -95,7 +110,7 @@ BlBuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
     }
 
     /* Iterate through and map all the mappings*/
-    BlDebugPrint(L"Mapping and dumping EFI memory:\n");
+    Debug::Print(L"Mapping and dumping EFI memory:\n");
     ListEntry = PageMap->MemoryMap.Flink;
     while(ListEntry != &PageMap->MemoryMap)
     {
@@ -106,11 +121,11 @@ BlBuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
         if(Mapping->VirtualAddress)
         {
             /* Dump memory mapping */
-            BlDebugPrint(L"   Type=%02lu, PhysicalBase=%.16P, VirtualBase=%.16P, Pages=%llu\n", Mapping->MemoryType,
+            Debug::Print(L"   Type=%02lu, PhysicalBase=%.16P, VirtualBase=%.16P, Pages=%llu\n", Mapping->MemoryType,
                          Mapping->PhysicalAddress, Mapping->VirtualAddress, Mapping->NumberOfPages);
 
             /* Map memory */
-            Status = BlMapPage(PageMap, (UINT_PTR)Mapping->VirtualAddress,
+            Status = MapPage(PageMap, (UINT_PTR)Mapping->VirtualAddress,
                              (UINT_PTR)Mapping->PhysicalAddress, Mapping->NumberOfPages);
             if(Status != STATUS_EFI_SUCCESS)
             {
@@ -127,6 +142,81 @@ BlBuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
     return STATUS_EFI_SUCCESS;
 }
 
+/**
+ * Returns next level of the Page Table.
+ *
+ * @param PageMap
+ *        Supplies a pointer to the page mapping structure.
+ *
+ * @param PageTable
+ *        Supplies a pointer to the current Page Table.
+ *
+ * @param Entry
+ *        Supplies an index of the current Page Table entry.
+ *
+ * @param NextPageTable
+ *        Supplies a pointer to the memory area where the next Page Table level is returned.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Memory::GetNextPageTable(IN PXTBL_PAGE_MAPPING PageMap,
+                         IN PVOID PageTable,
+                         IN SIZE_T Entry,
+                         OUT PVOID *NextPageTable)
+{
+    EFI_PHYSICAL_ADDRESS Address;
+    ULONGLONG PmlPointer = 0;
+    PHARDWARE_PTE PmlTable;
+    EFI_STATUS Status;
+
+    PmlTable = (PHARDWARE_PTE)PageTable;
+
+    /* Check if this is a valid table */
+    if(PmlTable[Entry].Valid)
+    {
+        /* Get PML pointer */
+        PmlPointer = PmlTable[Entry].PageFrameNumber;
+        PmlPointer <<= EFI_PAGE_SHIFT;
+    }
+    else
+    {
+        /* Allocate pages for new PML entry */
+        Status = AllocatePages(AllocateAnyPages, 1, &Address);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory allocation failure */
+            return Status;
+        }
+
+        /* Add new memory mapping */
+        Status = MapVirtualMemory(PageMap, NULLPTR, (PVOID)(UINT_PTR)Address, 1, LoaderMemoryData);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory mapping failure */
+            return Status;
+        }
+
+        /* Fill allocated memory with zeros */
+        RTL::Memory::ZeroMemory((PVOID)(ULONGLONG)Address, EFI_PAGE_SIZE);
+
+        /* Set paging entry settings */
+        PmlTable[Entry].PageFrameNumber = Address / EFI_PAGE_SIZE;
+        PmlTable[Entry].Valid = 1;
+        PmlTable[Entry].Writable = 1;
+        PmlPointer = (ULONGLONG)Address;
+    }
+
+    /* Set next Page Map Level (PML) */
+    *NextPageTable = (PVOID)(ULONGLONG)PmlPointer;
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
 /**
  * Does the actual virtual memory mapping.
  *
@@ -148,13 +238,14 @@ BlBuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
  */
 XTCDECL
 EFI_STATUS
-BlMapPage(IN PXTBL_PAGE_MAPPING PageMap,
+Memory::MapPage(IN PXTBL_PAGE_MAPPING PageMap,
-          IN UINT_PTR VirtualAddress,
+                IN ULONG_PTR VirtualAddress,
-          IN UINT_PTR PhysicalAddress,
+                IN ULONG_PTR PhysicalAddress,
-          IN UINT NumberOfPages)
+                IN ULONG NumberOfPages)
 {
+    PVOID Pml1, Pml2, Pml3, Pml4, Pml5;
     SIZE_T Pml1Entry, Pml2Entry, Pml3Entry, Pml4Entry, Pml5Entry;
-    PHARDWARE_PTE Pml1, Pml2, Pml3, Pml4, Pml5;
+    PHARDWARE_PTE PmlTable;
     SIZE_T PageFrameNumber;
     EFI_STATUS Status;
 
@@ -165,7 +256,7 @@ BlMapPage(IN PXTBL_PAGE_MAPPING PageMap,
     while(NumberOfPages > 0)
     {
         /* Calculate the indices in the various Page Tables from the virtual address */
-        Pml5Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_LA57_SHIFT)) >> MM_LA57_SHIFT;
+        Pml5Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_P5I_SHIFT)) >> MM_P5I_SHIFT;
         Pml4Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_PXI_SHIFT)) >> MM_PXI_SHIFT;
         Pml3Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_PPI_SHIFT)) >> MM_PPI_SHIFT;
         Pml2Entry = (VirtualAddress & ((ULONGLONG)0x1FF << MM_PDI_SHIFT)) >> MM_PDI_SHIFT;
@@ -175,10 +266,10 @@ BlMapPage(IN PXTBL_PAGE_MAPPING PageMap,
         if(PageMap->PageMapLevel == 5)
         {
             /* Five level Page Map */
-            Pml5 = ((PHARDWARE_PTE)(PageMap->PtePointer));
+            Pml5 = PageMap->PtePointer;
 
             /* Get PML4 */
-            Status = BlpGetNextPageTable(PageMap, Pml5, Pml5Entry, &Pml4);
+            Status = GetNextPageTable(PageMap, Pml5, Pml5Entry, &Pml4);
             if(Status != STATUS_EFI_SUCCESS)
             {
                 /* Memory mapping failure */
@@ -188,11 +279,11 @@ BlMapPage(IN PXTBL_PAGE_MAPPING PageMap,
         else
         {
             /* Four level Page Map */
-            Pml4 = ((PHARDWARE_PTE)(PageMap->PtePointer));
+            Pml4 = PageMap->PtePointer;
         }
 
         /* Get PML3 */
-        Status = BlpGetNextPageTable(PageMap, Pml4, Pml4Entry, &Pml3);
+        Status = GetNextPageTable(PageMap, Pml4, Pml4Entry, &Pml3);
         if(Status != STATUS_EFI_SUCCESS)
         {
             /* Memory mapping failure */
@@ -200,7 +291,7 @@ BlMapPage(IN PXTBL_PAGE_MAPPING PageMap,
         }
 
         /* Get PML 2 */
-        Status = BlpGetNextPageTable(PageMap, Pml3, Pml3Entry, &Pml2);
+        Status = GetNextPageTable(PageMap, Pml3, Pml3Entry, &Pml2);
         if(Status != STATUS_EFI_SUCCESS)
         {
             /* Memory mapping failure */
@@ -208,7 +299,7 @@ BlMapPage(IN PXTBL_PAGE_MAPPING PageMap,
         }
 
         /* Get PML1 */
-        Status = BlpGetNextPageTable(PageMap, Pml2, Pml2Entry, &Pml1);
+        Status = GetNextPageTable(PageMap, Pml2, Pml2Entry, &Pml1);
         if(Status != STATUS_EFI_SUCCESS)
         {
             /* Memory mapping failure */
@@ -216,9 +307,11 @@ BlMapPage(IN PXTBL_PAGE_MAPPING PageMap,
         }
 
         /* Set paging entry settings */
-        Pml1[Pml1Entry].PageFrameNumber = PageFrameNumber;
+        PmlTable = (PHARDWARE_PTE)Pml1;
-        Pml1[Pml1Entry].Valid = 1;
+        RTL::Memory::ZeroMemory(&PmlTable[Pml1Entry], sizeof(HARDWARE_PTE));
-        Pml1[Pml1Entry].Writable = 1;
+        PmlTable[Pml1Entry].PageFrameNumber = PageFrameNumber;
+        PmlTable[Pml1Entry].Valid = 1;
+        PmlTable[Pml1Entry].Writable = 1;
 
         /* Take next virtual address and PFN */
         VirtualAddress += EFI_PAGE_SIZE;
@@ -247,29 +340,33 @@ BlMapPage(IN PXTBL_PAGE_MAPPING PageMap,
  */
 XTCDECL
 EFI_STATUS
-BlpSelfMapPml(IN PXTBL_PAGE_MAPPING PageMap,
+Memory::SelfMapPml(IN PXTBL_PAGE_MAPPING PageMap,
                    IN ULONG_PTR SelfMapAddress)
 {
+    PHARDWARE_PTE PmlBase;
     ULONGLONG PmlIndex;
 
+    /* Initialize PML base pointer */
+    PmlBase = (PHARDWARE_PTE)PageMap->PtePointer;
+
     /* Check page map level */
     if(PageMap->PageMapLevel == 5)
     {
-        /* Self-mapping for PML5 is not supported */
+        /* Calculate PML index based on provided self map address for PML5 */
-        BlDebugPrint(L"PML5 self-mapping not supported yet!\n");
+        PmlIndex = (SelfMapAddress >> MM_P5I_SHIFT) & 0x1FF;
-        return STATUS_EFI_UNSUPPORTED;
     }
     else
     {
-        /* Calculate PML index based on provided self map address */
+        /* Calculate PML index based on provided self map address for PML4 */
         PmlIndex = (SelfMapAddress >> MM_PXI_SHIFT) & 0x1FF;
-
-        /* Add self-mapping for PML4 */
-        ((PHARDWARE_PTE)PageMap->PtePointer)[PmlIndex].PageFrameNumber = (UINT_PTR)PageMap->PtePointer / EFI_PAGE_SIZE;
-        ((PHARDWARE_PTE)PageMap->PtePointer)[PmlIndex].Valid = 1;
-        ((PHARDWARE_PTE)PageMap->PtePointer)[PmlIndex].Writable = 1;
     }
 
+    /* Add self-mapping */
+    RTL::Memory::ZeroMemory(&PmlBase[PmlIndex], sizeof(HARDWARE_PTE));
+    PmlBase[PmlIndex].PageFrameNumber = (UINT_PTR)PageMap->PtePointer / EFI_PAGE_SIZE;
+    PmlBase[PmlIndex].Valid = 1;
+    PmlBase[PmlIndex].Writable = 1;
+
     /* Return success */
     return STATUS_EFI_SUCCESS;
 }

boot/xtldr/arch/i686/memory.cc

@@ -0,0 +1,461 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/arch/i686/memory.cc
+ * DESCRIPTION:     XT Boot Loader i686 specific memory management
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ *                  Aiken Harris <harraiken91@gmail.com>
+ */
+
+#include <xtldr.hh>
+
+
+/**
+ * Maps boot loader related code and builds page map.
+ *
+ * @param PageMap
+ *        Supplies a pointer to the page mapping structure.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Memory::BuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
+                     IN ULONG_PTR SelfMapAddress)
+{
+    PLIST_ENTRY ListEntry, ModulesList, ModulesListEntry;
+    EFI_PHYSICAL_ADDRESS Address, DirectoryAddress;
+    PXTBL_MODULE_INFO ModuleInfo;
+    PXTBL_MEMORY_MAPPING Mapping;
+    PVOID LoaderBase;
+    ULONGLONG LoaderSize;
+    EFI_STATUS Status;
+    ULONG Index;
+
+    /* Check the page map level to determine which paging structure to create */
+    if(PageMap->PageMapLevel == 3)
+    {
+        /* Allocate a page for the 3-level page map structure (PAE enabled) */
+        Status = AllocatePages(AllocateAnyPages, 1, &Address);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory allocation failed, cannot proceed with page map creation */
+            return Status;
+        }
+
+        /* Assign the allocated page to the page map and zero it out */
+        PageMap->PtePointer = (PVOID)(UINT_PTR)Address;
+        RTL::Memory::ZeroMemory(PageMap->PtePointer, EFI_PAGE_SIZE);
+
+        /* Allocate 4 pages for the Page Directories (PDs) */
+        Status = AllocatePages(AllocateAnyPages, 4, &DirectoryAddress);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory allocation failed, cannot proceed with page map creation */
+            return Status;
+        }
+
+        /* Zero-fill the allocated memory for the Page Directories */
+        RTL::Memory::ZeroMemory((PVOID)DirectoryAddress, EFI_PAGE_SIZE * 4);
+
+        /* Fill the PDPT with pointers to the Page Directories */
+        for(Index = 0; Index < 4; Index++)
+        {
+            RTL::Memory::ZeroMemory(&((PHARDWARE_MODERN_PTE)PageMap->PtePointer)[Index], sizeof(HARDWARE_MODERN_PTE));
+            ((PHARDWARE_MODERN_PTE)PageMap->PtePointer)[Index].PageFrameNumber = DirectoryAddress / EFI_PAGE_SIZE;
+            ((PHARDWARE_MODERN_PTE)PageMap->PtePointer)[Index].Valid = 1;
+            DirectoryAddress += EFI_PAGE_SIZE;
+        }
+    }
+    else
+    {
+        /* Allocate a page for the 2-level page map structure (PAE disabled) */
+        Status = AllocatePages(AllocateAnyPages, 1, &Address);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory allocation failed, cannot proceed with page map creation */
+            return Status;
+        }
+
+        /* Assign the allocated page to the page map and zero it out */
+        PageMap->PtePointer = (PVOID)(UINT_PTR)Address;
+        RTL::Memory::ZeroMemory(PageMap->PtePointer, EFI_PAGE_SIZE);
+    }
+
+    /* Add page mapping itself to memory mapping */
+    Status = SelfMapPml(PageMap, SelfMapAddress);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* PML mapping failed */
+        return Status;
+    }
+
+    /* Map the trampoline code area */
+    Status = MapVirtualMemory(PageMap, (PVOID)MM_TRAMPOLINE_ADDRESS,(PVOID)MM_TRAMPOLINE_ADDRESS,
+                              1, LoaderFirmwareTemporary);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Mapping trampoline code failed */
+        return Status;
+    }
+
+    /* Get list of XTLDR modules */
+    ModulesList = Protocol::GetModulesList();
+    ModulesListEntry = ModulesList->Flink;
+    while(ModulesListEntry != ModulesList)
+    {
+        /* Get module info */
+        ModuleInfo = CONTAIN_RECORD(ModulesListEntry, XTBL_MODULE_INFO, Flink);
+
+        /* Map module code */
+        Status = MapVirtualMemory(PageMap, ModuleInfo->ModuleBase, ModuleInfo->ModuleBase,
+                                  EFI_SIZE_TO_PAGES(ModuleInfo->ModuleSize), LoaderFirmwareTemporary);
+
+        /* Check if mapping succeeded */
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Mapping module code failed */
+            return Status;
+        }
+
+        /* Get next module */
+        ModulesListEntry = ModulesListEntry->Flink;
+    }
+
+    /* Get boot loader image information */
+    XtLoader::GetLoaderImageInformation(&LoaderBase, &LoaderSize);
+
+    /* Make sure boot loader image base and size are set */
+    if(LoaderBase && LoaderSize)
+    {
+        /* Map boot loader code as well */
+        Status = MapVirtualMemory(PageMap, LoaderBase, LoaderBase,
+                                  EFI_SIZE_TO_PAGES(LoaderSize), LoaderFirmwareTemporary);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Mapping boot loader code failed */
+            return Status;
+        }
+    }
+    else
+    {
+        /* Boot loader image information re not available */
+        return STATUS_EFI_PROTOCOL_ERROR;
+    }
+
+    /* Iterate through and map all the mappings*/
+    Debug::Print(L"Mapping and dumping EFI memory:\n");
+    ListEntry = PageMap->MemoryMap.Flink;
+    while(ListEntry != &PageMap->MemoryMap)
+    {
+        /* Take mapping from the list */
+        Mapping = CONTAIN_RECORD(ListEntry, XTBL_MEMORY_MAPPING, ListEntry);
+
+        /* Check if virtual address is set */
+        if(Mapping->VirtualAddress)
+        {
+            /* Dump memory mapping */
+            Debug::Print(L"   Type=%02lu, PhysicalBase=%.8P, VirtualBase=%.8P, Pages=%llu\n", Mapping->MemoryType,
+                         Mapping->PhysicalAddress, Mapping->VirtualAddress, Mapping->NumberOfPages);
+
+            /* Map memory */
+            Status = MapPage(PageMap, (UINT_PTR)Mapping->VirtualAddress,
+                             (UINT_PTR)Mapping->PhysicalAddress, Mapping->NumberOfPages);
+            if(Status != STATUS_EFI_SUCCESS)
+            {
+                /* Memory mapping failed */
+                return Status;
+            }
+        }
+
+        /* Take next element */
+        ListEntry = ListEntry->Flink;
+    }
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
+/**
+ * Returns next level of the Page Table.
+ *
+ * @param PageMap
+ *        Supplies a pointer to the page mapping structure.
+ *
+ * @param PageTable
+ *        Supplies a pointer to the current Page Table.
+ *
+ * @param Entry
+ *        Supplies an index of the current Page Table entry.
+ *
+ * @param NextPageTable
+ *        Supplies a pointer to the memory area where the next Page Table level is returned.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Memory::GetNextPageTable(IN PXTBL_PAGE_MAPPING PageMap,
+                         IN PVOID PageTable,
+                         IN SIZE_T Entry,
+                         OUT PVOID *NextPageTable)
+{
+    EFI_PHYSICAL_ADDRESS Address;
+    ULONGLONG PmlPointer = 0;
+    EFI_STATUS Status;
+    PHARDWARE_LEGACY_PTE LegacyPmlTable;
+    PHARDWARE_MODERN_PTE PmlTable;
+    BOOLEAN ValidPte = FALSE;
+
+    /* Check page map level to determine PTE size */
+    if(PageMap->PageMapLevel >= 3)
+    {
+        /* 64-bit PTE for PML3 (PAE enabled) */
+        PmlTable = (PHARDWARE_MODERN_PTE)PageTable;
+        if(PmlTable[Entry].Valid)
+        {
+            /* Get page frame number from page table entry */
+            PmlPointer = PmlTable[Entry].PageFrameNumber;
+            ValidPte = TRUE;
+        }
+    }
+    else
+    {
+        /* 32-bit PTE for PML2 (PAE disabled) */
+        LegacyPmlTable = (PHARDWARE_LEGACY_PTE)PageTable;
+        if(LegacyPmlTable[Entry].Valid)
+        {
+            /* Get page frame number from page table entry */
+            PmlPointer = LegacyPmlTable[Entry].PageFrameNumber;
+            ValidPte = TRUE;
+        }
+    }
+
+    /* Check if page table entry is valid */
+    if(ValidPte)
+    {
+        /* Calculate the base address of the next page table */
+        PmlPointer <<= EFI_PAGE_SHIFT;
+    }
+    else
+    {
+        /* Allocate pages for new PML entry */
+        Status = AllocatePages(AllocateAnyPages, 1, &Address);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory allocation failure */
+            return Status;
+        }
+
+        /* Add new memory mapping */
+        Status = MapVirtualMemory(PageMap, NULLPTR, (PVOID)(UINT_PTR)Address, 1, LoaderMemoryData);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory mapping failure */
+            return Status;
+        }
+
+        /* Fill allocated memory with zeros */
+        RTL::Memory::ZeroMemory((PVOID)(ULONGLONG)Address, EFI_PAGE_SIZE);
+
+        /* Set paging entry settings based on level */
+        if(PageMap->PageMapLevel >= 3)
+        {
+            /* 64-bit PTE for PML3 (PAE enabled) */
+            PmlTable = (PHARDWARE_MODERN_PTE)PageTable;
+            PmlTable[Entry].PageFrameNumber = Address / EFI_PAGE_SIZE;
+            PmlTable[Entry].Valid = 1;
+            PmlTable[Entry].Writable = 1;
+        }
+        else
+        {
+            /* 32-bit PTE for PML2 (PAE disabled) */
+            LegacyPmlTable = (PHARDWARE_LEGACY_PTE)PageTable;
+            LegacyPmlTable[Entry].PageFrameNumber = (UINT32)(Address / EFI_PAGE_SIZE);
+            LegacyPmlTable[Entry].Valid = 1;
+            LegacyPmlTable[Entry].Writable = 1;
+        }
+
+        /* Return the address of the new page table */
+        PmlPointer = (ULONGLONG)Address;
+    }
+
+    /* Set next Page Map Level (PML) */
+    *NextPageTable = (PVOID)(ULONGLONG)PmlPointer;
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
+/**
+ * Does the actual virtual memory mapping.
+ *
+ * @param PageMap
+ *        Supplies a pointer to the page mapping structure.
+ *
+ * @param VirtualAddress
+ *        Supplies a virtual address of the mapping.
+ *
+ * @param PhysicalAddress
+ *        Supplies a physical address of the mapping.
+ *
+ * @param NumberOfPages
+ *        Supplies a number of the pages of the mapping.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Memory::MapPage(IN PXTBL_PAGE_MAPPING PageMap,
+                IN ULONG_PTR VirtualAddress,
+                IN ULONG_PTR PhysicalAddress,
+                IN ULONG NumberOfPages)
+{
+    SIZE_T PageFrameNumber;
+    PVOID Pml1, Pml2, Pml3;
+    SIZE_T Pml1Entry, Pml2Entry, Pml3Entry;
+    PHARDWARE_LEGACY_PTE LegacyPmlTable;
+    PHARDWARE_MODERN_PTE PmlTable;
+    EFI_STATUS Status;
+
+    /* Set the Page Frame Number (PFN) */
+    PageFrameNumber = PhysicalAddress >> EFI_PAGE_SHIFT;
+
+    /* Map all requested pages */
+    while(NumberOfPages > 0)
+    {
+        /* Check the paging mode to use the correct page table structure */
+        if(PageMap->PageMapLevel == 3)
+        {
+            /* Calculate the indices for PAE page tables */
+            Pml3Entry = (VirtualAddress >> 30) & 0x3;
+            Pml2Entry = (VirtualAddress >> 21) & 0x1FF;
+            Pml1Entry = (VirtualAddress >> 12) & 0x1FF;
+
+            /* Get Page Directory Pointer Table (PML3) */
+            Pml3 = PageMap->PtePointer;
+
+            /* Get Page Directory (PML2) */
+            Status = GetNextPageTable(PageMap, Pml3, Pml3Entry, &Pml2);
+            if(Status != STATUS_EFI_SUCCESS)
+            {
+                /* Failed to get the Page Table, abort mapping */
+                return Status;
+            }
+
+            /* Get Page Table (PML1) */
+            Status = GetNextPageTable(PageMap, Pml2, Pml2Entry, &Pml1);
+            if(Status != STATUS_EFI_SUCCESS)
+            {
+                /* Failed to get the Page Table, abort mapping */
+                return Status;
+            }
+
+            /* Set the 64-bit PTE entry */
+            PmlTable = (PHARDWARE_MODERN_PTE)Pml1;
+            RTL::Memory::ZeroMemory(&PmlTable[Pml1Entry], sizeof(HARDWARE_MODERN_PTE));
+            PmlTable[Pml1Entry].PageFrameNumber = PageFrameNumber;
+            PmlTable[Pml1Entry].Valid = 1;
+            PmlTable[Pml1Entry].Writable = 1;
+        }
+        else
+        {
+            /* Calculate the indices for non-PAE page tables */
+            Pml2Entry = (VirtualAddress >> 22) & 0x3FF;
+            Pml1Entry = (VirtualAddress >> 12) & 0x3FF;
+
+            /* Get Page Directory (PML2) */
+            Pml2 = PageMap->PtePointer;
+
+            /* Get Page Table (PML1) */
+            Status = GetNextPageTable(PageMap, Pml2, Pml2Entry, &Pml1);
+            if(Status != STATUS_EFI_SUCCESS)
+            {
+                /* Failed to get the Page Table, abort mapping */
+                return Status;
+            }
+
+            /* Set the 32-bit PTE entry */
+            LegacyPmlTable = (PHARDWARE_LEGACY_PTE)Pml1;
+            RTL::Memory::ZeroMemory(&LegacyPmlTable[Pml1Entry], sizeof(HARDWARE_LEGACY_PTE));
+            LegacyPmlTable[Pml1Entry].PageFrameNumber = (UINT32)PageFrameNumber;
+            LegacyPmlTable[Pml1Entry].Valid = 1;
+            LegacyPmlTable[Pml1Entry].Writable = 1;
+        }
+
+        /* Take next virtual address and PFN */
+        VirtualAddress += EFI_PAGE_SIZE;
+        PageFrameNumber++;
+
+        /* Decrease number of pages left */
+        NumberOfPages--;
+    }
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
+/**
+ * Creates a recursive self mapping for all PML levels.
+ *
+ * @param PageMap
+ *        Supplies a pointer to the page mapping structure.
+ *
+ * @param SelfMapAddress
+ *        Supplies a virtual address of the page tables.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Memory::SelfMapPml(IN PXTBL_PAGE_MAPPING PageMap,
+                   IN ULONG_PTR SelfMapAddress)
+{
+    PHARDWARE_LEGACY_PTE LegacyPml;
+    PHARDWARE_MODERN_PTE Pml;
+    ULONGLONG PmlIndex;
+    ULONG Index;
+
+    /* Check page map level */
+    if(PageMap->PageMapLevel == 3)
+    {
+        /* Calculate PML index based on provided self map address */
+        PmlIndex = (SelfMapAddress >> MM_PDI_SHIFT) & 0x1FF;
+
+        /* Get Page Directory */
+        Pml = (PHARDWARE_MODERN_PTE)(((PHARDWARE_MODERN_PTE)PageMap->PtePointer)[SelfMapAddress >> MM_PPI_SHIFT].PageFrameNumber * EFI_PAGE_SIZE);
+
+        /* Add self-mapping for PML3 (PAE enabled) */
+        for(Index = 0; Index < 4; Index++)
+        {
+            RTL::Memory::ZeroMemory(&Pml[PmlIndex + Index], sizeof(HARDWARE_MODERN_PTE));
+            Pml[PmlIndex + Index].PageFrameNumber = ((PHARDWARE_MODERN_PTE)PageMap->PtePointer)[Index].PageFrameNumber;
+            Pml[PmlIndex + Index].Valid = 1;
+            Pml[PmlIndex + Index].Writable = 1;
+        }
+    }
+    else
+    {
+        LegacyPml = (PHARDWARE_LEGACY_PTE)PageMap->PtePointer;
+
+        /* Calculate PML index based on provided self map address */
+        PmlIndex = (SelfMapAddress >> MM_PDI_LEGACY_SHIFT);
+
+        /* Add self-mapping for PML2 (PAE disabled) */
+        RTL::Memory::ZeroMemory(&LegacyPml[PmlIndex], sizeof(HARDWARE_LEGACY_PTE));
+        LegacyPml[PmlIndex].PageFrameNumber = (UINT_PTR)PageMap->PtePointer / EFI_PAGE_SIZE;
+        LegacyPml[PmlIndex].Valid = 1;
+        LegacyPml[PmlIndex].Writable = 1;
+    }
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}

boot/xtldr/biosutil.cc

@@ -0,0 +1,190 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/biosutil.cc
+ * DESCRIPTION:     Legacy BIOS support
+ * DEVELOPERS:      Aiken Harris <harraiken91@gmail.com>
+ */
+
+#include <xtldr.hh>
+
+
+/**
+ * Clears the entire screen and moves the cursor to the top-left corner.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+BiosUtils::ClearScreen()
+{
+    VOLATILE PUSHORT VgaBuffer = (PUSHORT)0xB8000;
+    USHORT Blank;
+    UINT Index;
+
+    /* Set blank character */
+    Blank = (0x0F << 8) | L' ';
+
+    /* Fill the entire screen with blank characters */
+    for(Index = 0; Index < VgaWidth * VgaHeight; Index++)
+    {
+        VgaBuffer[Index] = Blank;
+    }
+
+    /* Reset cursor position to the top-left corner */
+    CursorX = 0;
+    CursorY = 0;
+
+    /* Update the hardware cursor position */
+    UpdateCursor();
+}
+
+/**
+ * Formats the input string and prints it out to the screen.
+ *
+ * @param Format
+ *        The formatted string that is to be written to the output.
+ *
+ * @param ...
+ *        Depending on the format string, this routine might expect a sequence of additional arguments.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+BiosUtils::Print(IN PCWSTR Format,
+                 IN ...)
+{
+    RTL_PRINT_CONTEXT PrintContext;
+    VA_LIST Arguments;
+
+    /* Initialise the print contexts */
+    PrintContext.WriteWideCharacter = PutChar;
+
+    /* Initialise the va_list */
+    VA_START(Arguments, Format);
+
+    /* Format and print the string to the stdout */
+    RTL::WideString::FormatWideString(&PrintContext, (PWCHAR)Format, Arguments);
+
+    /* Clean up the va_list */
+    VA_END(Arguments);
+}
+
+/**
+ * Writes a single wide character to the screen using legacy BIOS VGA text mode.
+ *
+ * @param Character
+ *        The wide character to be printed.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+XTSTATUS
+BiosUtils::PutChar(IN WCHAR Character)
+{
+    VOLATILE PUSHORT VgaBuffer = (PUSHORT)0xB8000;
+    USHORT VgaCharacter;
+
+    /* Handle special characters */
+    if(Character == L'\n')
+    {
+        /* Move to the next line */
+        CursorX = 0;
+        CursorY++;
+    }
+    else if(Character == L'\r')
+    {
+        /* Move to the beginning of the current line */
+        CursorX = 0;
+    }
+    else
+    {
+        /* Print character and move cursor to the right */
+        VgaCharacter = (0x0F << 8) | (Character & 0xFF);
+        VgaBuffer[CursorY * VgaWidth + CursorX] = VgaCharacter;
+        CursorX++;
+    }
+
+    /* Handle moving to the next line if cursor is at the end of the line */
+    if(CursorX >= VgaWidth)
+    {
+        CursorX = 0;
+        CursorY++;
+    }
+
+    /* Handle scrolling if cursor is at the end of the screen */
+    if(CursorY >= VgaHeight)
+    {
+        ScrollScreen();
+        CursorY = VgaHeight - 1;
+    }
+
+    /* Update the hardware cursor position */
+    UpdateCursor();
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
+/**
+ * Scrolls the entire screen content up by one line and clears the last line.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+BiosUtils::ScrollScreen()
+{
+    VOLATILE PUSHORT VgaBuffer = (PUSHORT)0xB8000;
+    USHORT Blank;
+    UINT Index;
+
+    /* Set blank character */
+    Blank = (0x0F << 8) | L' ';
+
+    /* Move every line up by one */
+    for(Index = 0; Index < (VgaHeight - 1) * VgaWidth; Index++)
+    {
+        VgaBuffer[Index] = VgaBuffer[Index + VgaWidth];
+    }
+
+    /* Clear the last line */
+    for(Index = (VgaHeight - 1) * VgaWidth; Index < VgaHeight * VgaWidth; Index++)
+    {
+        VgaBuffer[Index] = Blank;
+    }
+}
+
+/**
+ * Updates the hardware cursor position on the screen.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+BiosUtils::UpdateCursor()
+{
+    USHORT Position;
+
+    /* Calculate cursor position */
+    Position = CursorY * VgaWidth + CursorX;
+
+    /* Send command to set the high byte of the cursor position */
+    HL::IoPort::WritePort8(0x3D4, 0x0E);
+    HL::IoPort::WritePort8(0x3D5, (UCHAR)((Position >> 8) & 0xFF));
+
+    /* Send command to set the low byte of the cursor position */
+    HL::IoPort::WritePort8(0x3D4, 0x0F);
+    HL::IoPort::WritePort8(0x3D5, (UCHAR)(Position & 0xFF));
+}

boot/xtldr/bootutil.cc

@@ -0,0 +1,87 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/bootutil.cc
+ * DESCRIPTION:     Helper functions used by the boot protocol during system startup
+ * DEVELOPERS:      Aiken Harris <harraiken91@gmail.com>
+ */
+
+#include <xtldr.hh>
+
+
+/**
+ * Checks if a specific option exists in the list of provided boot parameters.
+ *
+ * @param Parameters
+ *        A pointer to the wide-character string containing the boot parameters, separated by spaces.
+ *
+ * @param Needle
+ *        A pointer to the wide-character string representing the kernel option to find.
+ *
+ * @return This routine returns TRUE if the option is found, otherwise FALSE.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+BOOLEAN
+BootUtils::GetBooleanParameter(IN PCWSTR Parameters,
+                               IN PCWSTR Needle)
+{
+    PCWSTR CurrentPosition, TokenEnd, TokenStart;
+    SIZE_T NeedleLength, TokenLength;
+
+    /* Validate input data and ensure the option is not an empty string */
+    if(Parameters == NULLPTR || Needle == NULLPTR || *Needle == L'\0')
+    {
+        /* One of the parameters was invalid */
+        return FALSE;
+    }
+
+    CurrentPosition = Parameters;
+    NeedleLength = RTL::WideString::WideStringLength(Needle, 0);
+
+    /* Iterate through the entire parameters string */
+    while(*CurrentPosition != L'\0')
+    {
+        /* Skip any leading whitespace to find the start of the token */
+        while(*CurrentPosition == L' ')
+        {
+            CurrentPosition++;
+        }
+
+        /* Check if end of the string has been reached */
+        if(*CurrentPosition == L'\0')
+        {
+            /* End of string reached, no more tokens */
+            break;
+        }
+
+        /* Identify the boundaries of the current token */
+        TokenStart = CurrentPosition;
+        TokenEnd = TokenStart;
+        while(*TokenEnd != L'\0' && *TokenEnd != L' ')
+        {
+            TokenEnd++;
+        }
+
+        /* Calculate the length of the token found */
+        TokenLength = TokenEnd - TokenStart;
+
+         /* Compare the token length */
+        if(TokenLength == NeedleLength)
+        {
+            /* Length matches, compare the strings */
+            if(RTL::WideString::CompareWideStringInsensitive(TokenStart, Needle, NeedleLength) == 0)
+            {
+                /* A match was found */
+                return TRUE;
+            }
+        }
+
+        /* Move the position past the current token to continue the search */
+        CurrentPosition = TokenEnd;
+    }
+
+    /* No match was found */
+    return FALSE;
+}

boot/xtldr/console.cc

@@ -1,12 +1,12 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/console.c
+ * FILE:            xtldr/console.cc
  * DESCRIPTION:     EFI console support
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <xtldr.h>
+#include <xtldr.hh>
 
 
 /**
@@ -21,19 +21,19 @@
  */
 XTCDECL
 VOID
-BlClearConsoleLine(IN ULONGLONG LineNo)
+Console::ClearLine(IN ULONGLONG LineNo)
 {
     UINT_PTR Index, ResX, ResY;
 
     /* Query console mode */
-    BlQueryConsoleMode(&ResX, &ResY);
+    QueryMode(&ResX, &ResY);
 
     /* Set cursor position and clear line */
-    BlSetCursorPosition(0, LineNo);
+    SetCursorPosition(0, LineNo);
     for(Index = 0; Index < ResX; Index++)
     {
         /* Clear line */
-        BlConsoleWrite(L" ");
+        Write(L" ");
     }
 }
 
@@ -46,10 +46,10 @@ BlClearConsoleLine(IN ULONGLONG LineNo)
  */
 XTCDECL
 VOID
-BlClearConsoleScreen()
+Console::ClearScreen()
 {
     /* Clear screen */
-    EfiSystemTable->ConOut->ClearScreen(EfiSystemTable->ConOut);
+    XtLoader::GetEfiSystemTable()->ConOut->ClearScreen(XtLoader::GetEfiSystemTable()->ConOut);
 }
 
 /**
@@ -61,9 +61,9 @@ BlClearConsoleScreen()
  */
 XTCDECL
 VOID
-BlDisableConsoleCursor()
+Console::DisableCursor()
 {
-    EfiSystemTable->ConOut->EnableCursor(EfiSystemTable->ConOut, FALSE);
+    XtLoader::GetEfiSystemTable()->ConOut->EnableCursor(XtLoader::GetEfiSystemTable()->ConOut, FALSE);
 }
 
 /**
@@ -75,9 +75,39 @@ BlDisableConsoleCursor()
  */
 XTCDECL
 VOID
-BlEnableConsoleCursor()
+Console::EnableCursor()
 {
-    EfiSystemTable->ConOut->EnableCursor(EfiSystemTable->ConOut, TRUE);
+    XtLoader::GetEfiSystemTable()->ConOut->EnableCursor(XtLoader::GetEfiSystemTable()->ConOut, TRUE);
+}
+
+/**
+ * This routine initializes the EFI console.
+ *
+ * @return This routine returns status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+Console::InitializeConsole()
+{
+    /* Clear console buffers */
+    XtLoader::GetEfiSystemTable()->ConIn->Reset(XtLoader::GetEfiSystemTable()->ConIn, TRUE);
+    XtLoader::GetEfiSystemTable()->ConOut->Reset(XtLoader::GetEfiSystemTable()->ConOut, TRUE);
+    XtLoader::GetEfiSystemTable()->StdErr->Reset(XtLoader::GetEfiSystemTable()->StdErr, TRUE);
+
+    /* Make sure that current console mode is 80x25 characters, as some broken EFI implementations might
+     * set different mode that do not fit on the screen, causing a text to be displayed offscreen */
+    if(XtLoader::GetEfiSystemTable()->ConOut->Mode->Mode != 0)
+    {
+        /* Set console mode to 0, which is standard, 80x25 text mode */
+        SetMode(0);
+    }
+
+    /* Clear screen and enable cursor */
+    SetAttributes(EFI_TEXT_BGCOLOR_BLACK | EFI_TEXT_FGCOLOR_LIGHTGRAY);
+    ClearScreen();
+    EnableCursor();
 }
 
 /**
@@ -95,30 +125,30 @@ BlEnableConsoleCursor()
  */
 XTCDECL
 VOID
-BlConsolePrint(IN PUSHORT Format,
+Console::Print(IN PCWSTR Format,
                IN ...)
 {
     RTL_PRINT_CONTEXT ConsolePrintContext, SerialPrintContext;
     VA_LIST Arguments;
 
     /* Initialise the print contexts */
-    ConsolePrintContext.WriteWideCharacter = BlpConsolePutChar;
+    ConsolePrintContext.WriteWideCharacter = PutChar;
-    SerialPrintContext.WriteWideCharacter = BlpDebugPutChar;
+    SerialPrintContext.WriteWideCharacter = Debug::PutChar;
 
     /* Initialise the va_list */
     VA_START(Arguments, Format);
 
     /* Format and print the string to the stdout */
-    RtlFormatWideString(&ConsolePrintContext, (PWCHAR)Format, Arguments);
+    RTL::WideString::FormatWideString(&ConsolePrintContext, (PWCHAR)Format, Arguments);
 
     /* Print to serial console only if not running under OVMF */
-    if(RtlCompareWideString(EfiSystemTable->FirmwareVendor, L"EDK II", 6) != 0)
+    if(RTL::WideString::CompareWideString(XtLoader::GetEfiSystemTable()->FirmwareVendor, L"EDK II", 6) != 0)
     {
         /* Check if debugging enabled and if EFI serial port is fully initialized */
-        if(DEBUG && (BlpStatus.SerialPort.Flags & COMPORT_FLAG_INIT))
+        if(DEBUG && Debug::SerialPortReady())
         {
             /* Format and print the string to the serial console */
-            RtlFormatWideString(&SerialPrintContext, (PWCHAR)Format, Arguments);
+            RTL::WideString::FormatWideString(&SerialPrintContext, (PWCHAR)Format, Arguments);
         }
     }
 
@@ -127,50 +157,35 @@ BlConsolePrint(IN PUSHORT Format,
 }
 
 /**
- * Displays the string on the device at the current cursor location.
+ * Writes a character to the default EFI console.
  *
- * @param String
+ * @param Character
- *        The string to be displayed.
+ *        The integer promotion of the character to be written.
  *
- * @return This routine does not return any value.
+ * @return This routine returns a status code.
  *
  * @since XT 1.0
  */
 XTCDECL
-VOID
+XTSTATUS
-BlConsoleWrite(IN PUSHORT String)
+Console::PutChar(IN WCHAR Character)
 {
-    EfiSystemTable->ConOut->OutputString(EfiSystemTable->ConOut, String);
+    WCHAR Buffer[2];
+
+    /* Check if character is a newline ('\n') */
+    if(Character == L'\n')
+    {
+        /* Print carriage return ('\r') as well */
+        PutChar(L'\r');
     }
 
-/**
+    /* Write character to the screen console */
- * This routine initializes the EFI console.
+    Buffer[0] = Character;
- *
+    Buffer[1] = 0;
- * @return This routine returns status code.
+    XtLoader::GetEfiSystemTable()->ConOut->OutputString(XtLoader::GetEfiSystemTable()->ConOut, Buffer);
- *
- * @since XT 1.0
- */
-XTCDECL
-VOID
-BlInitializeConsole()
-{
-    /* Clear console buffers */
-    EfiSystemTable->ConIn->Reset(EfiSystemTable->ConIn, TRUE);
-    EfiSystemTable->ConOut->Reset(EfiSystemTable->ConOut, TRUE);
-    EfiSystemTable->StdErr->Reset(EfiSystemTable->StdErr, TRUE);
 
-    /* Make sure that current console mode is 80x25 characters, as some broken EFI implementations might
+    /* Return success */
-     * set different mode that do not fit on the screen, causing a text to be displayed offscreen */
+    return STATUS_SUCCESS;
-    if(EfiSystemTable->ConOut->Mode->Mode != 0)
-    {
-        /* Set console mode to 0, which is standard, 80x25 text mode */
-        BlSetConsoleMode(0);
-    }
-
-    /* Clear screen and enable cursor */
-    BlSetConsoleAttributes(EFI_TEXT_BGCOLOR_BLACK | EFI_TEXT_FGCOLOR_LIGHTGRAY);
-    BlClearConsoleScreen();
-    BlEnableConsoleCursor();
 }
 
 /**
@@ -188,10 +203,11 @@ BlInitializeConsole()
  */
 XTCDECL
 VOID
-BlQueryConsoleMode(OUT PUINT_PTR ResX,
+Console::QueryMode(OUT PUINT_PTR ResX,
                    OUT PUINT_PTR ResY)
 {
-    EfiSystemTable->ConOut->QueryMode(EfiSystemTable->ConOut, EfiSystemTable->ConOut->Mode->Mode, ResX, ResY);
+    XtLoader::GetEfiSystemTable()->ConOut->QueryMode(XtLoader::GetEfiSystemTable()->ConOut,
+                                                     XtLoader::GetEfiSystemTable()->ConOut->Mode->Mode, ResX, ResY);
 }
 
 /**
@@ -206,9 +222,9 @@ BlQueryConsoleMode(OUT PUINT_PTR ResX,
  */
 XTCDECL
 VOID
-BlReadKeyStroke(OUT PEFI_INPUT_KEY Key)
+Console::ReadKeyStroke(OUT PEFI_INPUT_KEY Key)
 {
-    EfiSystemTable->ConIn->ReadKeyStroke(EfiSystemTable->ConIn, Key);
+    XtLoader::GetEfiSystemTable()->ConIn->ReadKeyStroke(XtLoader::GetEfiSystemTable()->ConIn, Key);
 }
 
 /**
@@ -220,9 +236,9 @@ BlReadKeyStroke(OUT PEFI_INPUT_KEY Key)
  */
 XTCDECL
 VOID
-BlResetConsoleInputBuffer()
+Console::ResetInputBuffer()
 {
-    EfiSystemTable->ConIn->Reset(EfiSystemTable->ConIn, FALSE);
+    XtLoader::GetEfiSystemTable()->ConIn->Reset(XtLoader::GetEfiSystemTable()->ConIn, FALSE);
 }
 
 /**
@@ -237,26 +253,9 @@ BlResetConsoleInputBuffer()
  */
 XTCDECL
 VOID
-BlSetConsoleAttributes(IN ULONGLONG Attributes)
+Console::SetAttributes(IN ULONGLONG Attributes)
 {
-    EfiSystemTable->ConOut->SetAttribute(EfiSystemTable->ConOut, Attributes);
+    XtLoader::GetEfiSystemTable()->ConOut->SetAttribute(XtLoader::GetEfiSystemTable()->ConOut, Attributes);
-}
-
-/**
- * Sets the output console device to the requested mode.
- *
- * @param Mode
- *        Supplies a text mode number to set.
- *
- * @return This routine returns a status code.
- *
- * @since XT 1.0
- */
-XTCDECL
-EFI_STATUS
-BlSetConsoleMode(IN ULONGLONG Mode)
-{
-    return EfiSystemTable->ConOut->SetMode(EfiSystemTable->ConOut, Mode);
 }
 
 /**
@@ -274,40 +273,42 @@ BlSetConsoleMode(IN ULONGLONG Mode)
  */
 XTCDECL
 VOID
-BlSetCursorPosition(IN ULONGLONG PosX,
+Console::SetCursorPosition(IN ULONGLONG PosX,
                            IN ULONGLONG PosY)
 {
-    EfiSystemTable->ConOut->SetCursorPosition(EfiSystemTable->ConOut, PosX, PosY);
+    XtLoader::GetEfiSystemTable()->ConOut->SetCursorPosition(XtLoader::GetEfiSystemTable()->ConOut, PosX, PosY);
 }
 
 /**
- * Writes a character to the default EFI console.
+ * Sets the output console device to the requested mode.
  *
- * @param Character
+ * @param Mode
- *        The integer promotion of the character to be written.
+ *        Supplies a text mode number to set.
  *
  * @return This routine returns a status code.
  *
  * @since XT 1.0
  */
 XTCDECL
-XTSTATUS
+EFI_STATUS
-BlpConsolePutChar(IN USHORT Character)
+Console::SetMode(IN ULONGLONG Mode)
 {
-    USHORT Buffer[2];
+    return XtLoader::GetEfiSystemTable()->ConOut->SetMode(XtLoader::GetEfiSystemTable()->ConOut, Mode);
-
-    /* Check if character is a newline ('\n') */
-    if(Character == L'\n')
-    {
-        /* Print carriage return ('\r') as well */
-        BlpConsolePutChar(L'\r');
 }
 
-    /* Write character to the screen console */
+/**
-    Buffer[0] = Character;
+ * Displays the string on the device at the current cursor location.
-    Buffer[1] = 0;
+ *
-    EfiSystemTable->ConOut->OutputString(EfiSystemTable->ConOut, Buffer);
+ * @param String
-
+ *        The string to be displayed.
-    /* Return success */
+ *
-    return STATUS_SUCCESS;
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+Console::Write(IN PCWSTR String)
+{
+    XtLoader::GetEfiSystemTable()->ConOut->OutputString(XtLoader::GetEfiSystemTable()->ConOut, (PWSTR)String);
 }

boot/xtldr/data.cc

@@ -0,0 +1,72 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/data.cc
+ * DESCRIPTION:     XT Boot Loader global and static data
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ *                  Aiken Harris <harraiken91@gmail.com>
+ */
+
+#include <xtldr.hh>
+
+
+/* Legacy BIOS cursor X position */
+USHORT BiosUtils::CursorX = 0;
+
+/* Legacy BIOS cursor Y position */
+USHORT BiosUtils::CursorY = 0;
+
+/* Legacy BIOS screen height */
+CONST USHORT BiosUtils::VgaHeight = 25;
+
+/* Legacy BIOS screen width */
+CONST USHORT BiosUtils::VgaWidth = 80;
+
+/* XT Boot Loader menu list */
+PLIST_ENTRY Configuration::BootMenuList = NULLPTR;
+
+/* XT Boot Loader configuration list */
+LIST_ENTRY Configuration::Config;
+
+/* XT Boot Loader loaded configuration */
+LIST_ENTRY Configuration::ConfigSections;
+
+/* List of user-editable boot options */
+PCWSTR Configuration::EditableConfigOptions[] = {
+    L"BootModules", L"SystemType", L"SystemPath",
+    L"KernelFile",  L"InitrdFile", L"HalFile",
+    L"Parameters", NULLPTR
+};
+
+/* XT Boot Loader serial ports list */
+ULONG Debug::ComPortList[COMPORT_COUNT] = COMPORT_ADDRESS;
+
+/* A list of enabled debug ports */
+ULONG Debug::EnabledDebugPorts;
+
+/* XT Boot Loader serial port handle */
+CPPORT Debug::SerialPort;
+
+/* XT Boot Loader registered boot protocol list */
+LIST_ENTRY Protocol::BootProtocols;
+
+/* XT Boot Loader protocol */
+XTBL_LOADER_PROTOCOL Protocol::LoaderProtocol;
+
+/* XT Boot Loader loaded modules list */
+LIST_ENTRY Protocol::LoadedModules;
+
+/* List of available block devices */
+LIST_ENTRY Volume::EfiBlockDevices;
+
+/* Pointer to the boot menu callback routine */
+PBL_XT_BOOT_MENU XtLoader::BootMenu = NULLPTR;
+
+/* EFI Image Handle */
+EFI_HANDLE XtLoader::EfiImageHandle;
+
+/* EFI System Table */
+PEFI_SYSTEM_TABLE XtLoader::EfiSystemTable;
+
+/* XT Boot Loader status data */
+XTBL_STATUS XtLoader::LoaderStatus = {0};

boot/xtldr/debug.cc

@@ -0,0 +1,402 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/debug.cc
+ * DESCRIPTION:     XT Boot Loader debugging support
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <xtldr.hh>
+
+
+/**
+ * Enables I/O space access to all serial controllers found on the PCI(E) root bridge.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Debug::ActivateSerialIOController()
+{
+    EFI_GUID PciGuid = EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_GUID;
+    PEFI_PCI_ROOT_BRIDGE_IO_PROTOCOL PciDev;
+    USHORT Bus, Device, Function, Command;
+    UINT_PTR Index, PciHandleSize;
+    PEFI_HANDLE PciHandle = NULLPTR;
+    PCI_COMMON_HEADER PciHeader;
+    EFI_STATUS Status;
+    ULONGLONG Address;
+
+    /* Allocate memory for single EFI_HANDLE, what should be enough in most cases */
+    PciHandleSize = sizeof(EFI_HANDLE);
+    Status = Memory::AllocatePool(PciHandleSize, (PVOID*)&PciHandle);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Memory allocation failure */
+        return Status;
+    }
+
+    /* Get all instances of PciRootBridgeIo */
+    Status = XtLoader::GetEfiSystemTable()->BootServices->LocateHandle(ByProtocol, &PciGuid, NULLPTR,
+                                                                       &PciHandleSize, PciHandle);
+    if(Status == STATUS_EFI_BUFFER_TOO_SMALL)
+    {
+        /* Reallocate more memory as requested by UEFI */
+        Memory::FreePool(PciHandle);
+        Status = Memory::AllocatePool(PciHandleSize, (PVOID*)&PciHandle);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory reallocation failure */
+            return Status;
+        }
+
+        /* Second attempt to get instances of PciRootBridgeIo */
+        Status = XtLoader::GetEfiSystemTable()->BootServices->LocateHandle(ByProtocol, &PciGuid, NULLPTR,
+                                                                           &PciHandleSize, PciHandle);
+    }
+
+    /* Make sure successfully obtained PciRootBridgeIo instances */
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to get PciRootBridgeIo instances */
+        return Status;
+    }
+
+    /* Enumerate all devices for each handle, which decides a segment and a bus number range */
+    for(Index = 0; Index < (PciHandleSize / sizeof(EFI_HANDLE)); Index++)
+    {
+        /* Get inferface from the protocol */
+        Status = XtLoader::GetEfiSystemTable()->BootServices->HandleProtocol(PciHandle[Index], &PciGuid, (PVOID*)&PciDev);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Failed to get interface */
+            return Status;
+        }
+
+        /* Enumerate whole PCI bridge */
+        for(Bus = 0; Bus <= PCI_MAX_BRIDGE_NUMBER; Bus++)
+        {
+            /* Enumerate all devices for each bus */
+            for(Device = 0; Device < PCI_MAX_DEVICES; Device++)
+            {
+                /* Enumerate all functions for each devices */
+                for(Function = 0; Function < PCI_MAX_FUNCTION; Function++)
+                {
+                    /* Read configuration space */
+                    Address = ((ULONGLONG)((((UINT_PTR) Bus) << 24) + (((UINT_PTR) Device) << 16) +
+                                           (((UINT_PTR) Function) << 8) + ((UINT_PTR) 0)));
+                    PciDev->Pci.Read(PciDev, EfiPciIoWidthUint32, Address, sizeof (PciHeader) / sizeof (UINT), &PciHeader);
+
+                    /* Check if device exists */
+                    if(PciHeader.VendorId == PCI_INVALID_VENDORID)
+                    {
+                        /* Skip non-existen device */
+                        continue;
+                    }
+
+                    /* Check if device is serial controller or multiport serial controller */
+                    if(PciHeader.BaseClass == 0x07 && (PciHeader.SubClass == 0x00 || PciHeader.SubClass == 0x02))
+                    {
+                        /* Enable I/O space access */
+                        Address |= 0x4;
+                        Command = PCI_ENABLE_IO_SPACE;
+                        Status = PciDev->Pci.Write(PciDev, EfiPciIoWidthUint16, Address, 1, &Command);
+                    }
+                }
+            }
+        }
+    }
+
+    /* Return SUCCESS */
+    return STATUS_EFI_SUCCESS;
+}
+
+/**
+ * This routine initializes the XTLDR debug console.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Debug::InitializeDebugConsole()
+{
+    ULONG PortAddress, PortNumber, BaudRate;
+    PWCHAR DebugConfiguration, DebugPort, LastPort;
+    EFI_STATUS Status;
+
+    /* Set default serial port options */
+    PortAddress = 0;
+    PortNumber = 0;
+    BaudRate = 0;
+
+    /* Get debug configuration */
+    Configuration::GetValue(L"DEBUG", &DebugConfiguration);
+
+    /* Make sure any debug options are provided and debug console is not initialized yet */
+    if(DebugConfiguration && EnabledDebugPorts == 0)
+    {
+        /* Find all debug ports */
+        DebugPort = RTL::WideString::TokenizeWideString(DebugConfiguration, L";", &LastPort);
+
+        /* Iterate over all debug ports */
+        while(DebugPort != NULLPTR)
+        {
+            /* Check what port is set for debugging */
+            if(RTL::WideString::CompareWideStringInsensitive(DebugPort, L"COM", 3) == 0)
+            {
+                /* Read COM port number */
+                DebugPort += 3;
+                while(*DebugPort >= '0' && *DebugPort <= '9')
+                {
+                    /* Get port number */
+                    PortNumber *= 10;
+                    PortNumber += *DebugPort - '0';
+                    DebugPort++;
+                }
+
+                /* Check if custom COM port address supplied */
+                if(PortNumber == 0 && RTL::WideString::CompareWideStringInsensitive(DebugPort, L":0x", 3) == 0)
+                {
+                    /* COM port address provided */
+                    DebugPort += 3;
+                    while((*DebugPort >= '0' && *DebugPort <= '9') ||
+                          (*DebugPort >= 'A' && *DebugPort <= 'F') ||
+                          (*DebugPort >= 'a' && *DebugPort <= 'f'))
+                    {
+                        /* Get port address */
+                        PortAddress *= 16;
+                        if(*DebugPort >= '0' && *DebugPort <= '9')
+                        {
+                            PortAddress += *DebugPort - '0';
+                        }
+                        else if(*DebugPort >= 'A' && *DebugPort <= 'F')
+                        {
+                            PortAddress += *DebugPort - 'A' + 10;
+                        }
+                        else if(*DebugPort >= 'a' && *DebugPort <= 'f')
+                        {
+                            PortAddress += *DebugPort - 'a' + 10;
+                        }
+                        DebugPort++;
+                    }
+                }
+
+                /* Look for additional COM port parameters */
+                if(*DebugPort == ',')
+                {
+                    /* Baud rate provided */
+                    DebugPort++;
+                    while(*DebugPort >= '0' && *DebugPort <= '9')
+                    {
+                        /* Get baud rate */
+                        BaudRate *= 10;
+                        BaudRate += *DebugPort - '0';
+                        DebugPort++;
+                    }
+                }
+
+                /* Enable debug port */
+                EnabledDebugPorts |= XTBL_DEBUGPORT_SERIAL;
+            }
+            else if(RTL::WideString::CompareWideStringInsensitive(DebugPort, L"SCREEN", 5) == 0)
+            {
+                /* Enable debug port */
+                EnabledDebugPorts |= XTBL_DEBUGPORT_SCREEN;
+            }
+            else
+            {
+                /* Unsupported debug port specified */
+                Console::Print(L"ERROR: Unsupported debug port ('%S') specified\n", DebugPort);
+                EfiUtils::SleepExecution(3000);
+            }
+
+            /* Take next debug port */
+            DebugPort = RTL::WideString::TokenizeWideString(NULLPTR, L";", &LastPort);
+        }
+
+        /* Check if serial debug port is enabled */
+        if(EnabledDebugPorts & XTBL_DEBUGPORT_SERIAL)
+        {
+            /* Try to initialize COM port */
+            Status = InitializeSerialPort(PortNumber, PortAddress, BaudRate);
+            if(Status != STATUS_EFI_SUCCESS)
+            {
+                /* Remove serial debug port, as COM port initialization failed and return */
+                EnabledDebugPorts &= ~XTBL_DEBUGPORT_SERIAL;
+                return Status;
+            }
+        }
+    }
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
+/**
+ * This routine initializes the serial debug console.
+ *
+ * @param PortNumber
+ *        Supplies a port number.
+ *
+ * @param PortAddress
+ *        Supplies an address of the COM port.
+ *
+ * @param BaudRate
+ *        Supplies an optional port baud rate.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Debug::InitializeSerialPort(IN ULONG PortNumber,
+                            IN ULONG PortAddress,
+                            IN ULONG BaudRate)
+{
+    EFI_STATUS EfiStatus;
+    XTSTATUS Status;
+
+    /* Check if custom COM port address supplied */
+    if(!PortAddress)
+    {
+        /* We support only a pre-defined number of ports */
+        if(PortNumber > COMPORT_COUNT)
+        {
+            /* Fail if wrong/unsupported port used */
+            return STATUS_INVALID_PARAMETER;
+        }
+
+        /* Check if serial port is set */
+        if(PortNumber == 0)
+        {
+            /* Use COM1 by default */
+            PortNumber = 1;
+        }
+
+        /* Set custom port address based on the port number and print debug message */
+        PortAddress = ComPortList[PortNumber - 1];
+        Console::Print(L"Initializing serial console at port COM%d\n", PortNumber);
+    }
+    else
+    {
+        /* Custom port address supplied, print debug message */
+        Console::Print(L"Initializing serial console at COM port address: 0x%lX\n", PortAddress);
+    }
+
+    /* Initialize COM port */
+    Status = HL::ComPort::InitializeComPort(&SerialPort, (PUCHAR)UlongToPtr(PortAddress), BaudRate);
+
+    /* Port not found under supplied address */
+    if(Status == STATUS_NOT_FOUND && PortAddress)
+    {
+        /* This might be PCI(E) serial controller, try to activate I/O space access first */
+        EfiStatus = ActivateSerialIOController();
+        if(EfiStatus == STATUS_EFI_SUCCESS)
+        {
+            /* Try to reinitialize COM port */
+            Console::Print(L"Enabled I/O space access for all PCI(E) serial controllers found\n");
+            Status = HL::ComPort::InitializeComPort(&SerialPort, (PUCHAR)UlongToPtr(PortAddress), BaudRate);
+        }
+    }
+
+    /* Check COM port initialization status code */
+    if(Status != STATUS_SUCCESS)
+    {
+        /* Serial port initialization failed, mark as not ready */
+        return STATUS_EFI_NOT_READY;
+    }
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
+/**
+ * This routine formats the input string and prints it out to the debug ports.
+ *
+ * @param Format
+ *        The formatted string that is to be written to the output.
+ *
+ * @param ...
+ *        Depending on the format string, this routine might expect a sequence of additional arguments.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+Debug::Print(IN PCWSTR Format,
+             IN ...)
+{
+    RTL_PRINT_CONTEXT ConsolePrintContext, SerialPrintContext;
+    VA_LIST Arguments;
+
+    /* Check if debugging enabled and if EFI serial port is fully initialized */
+    if(DEBUG)
+    {
+        /* Initialize the print contexts */
+        ConsolePrintContext.WriteWideCharacter = Console::PutChar;
+        SerialPrintContext.WriteWideCharacter = PutChar;
+
+        /* Initialise the va_list */
+        VA_START(Arguments, Format);
+
+        /* Check if serial debug port is enabled */
+        if((EnabledDebugPorts & XTBL_DEBUGPORT_SERIAL) && (SerialPort.Flags & COMPORT_FLAG_INIT))
+        {
+            /* Format and print the string to the serial console */
+            RTL::WideString::FormatWideString(&SerialPrintContext, (PWCHAR)Format, Arguments);
+        }
+
+        /* Check if screen debug port is enabled and Boot Services are still available */
+        if((EnabledDebugPorts & XTBL_DEBUGPORT_SCREEN) && (XtLoader::GetBootServicesStatus() == TRUE))
+        {
+            /* Format and print the string to the screen */
+            RTL::WideString::FormatWideString(&ConsolePrintContext, (PWCHAR)Format, Arguments);
+        }
+
+        /* Clean up the va_list */
+        VA_END(Arguments);
+    }
+}
+
+/**
+ * Writes a character to the serial console.
+ *
+ * @param Character
+ *        The integer promotion of the character to be written.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+XTSTATUS
+Debug::PutChar(IN WCHAR Character)
+{
+    WCHAR Buffer[2];
+
+    /* Write character to the serial console */
+    Buffer[0] = Character;
+    Buffer[1] = 0;
+    return HL::ComPort::WriteComPort(&SerialPort, Buffer[0]);
+}
+
+/**
+ * Determines if the serial port has been successfully initialized and is ready for communication.
+ *
+ * @return This routine returns TRUE if the serial port is initialized and ready, FALSE otherwise.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+BOOLEAN
+Debug::SerialPortReady()
+{
+    return (SerialPort.Flags & COMPORT_FLAG_INIT);
+}

boot/xtldr/efiutils.cc

@@ -1,12 +1,12 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/efiutils.c
+ * FILE:            xtldr/efiutils.cc
  * DESCRIPTION:     EFI related routines for XT Boot Loader
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <xtldr.h>
+#include <xtldr.hh>
 
 
 /**
@@ -18,29 +18,35 @@
  */
 XTCDECL
 EFI_STATUS
-BlEnterFirmwareSetup()
+EfiUtils::EnterFirmwareSetup()
 {
     EFI_GUID Guid = EFI_GLOBAL_VARIABLE_GUID;
-    PULONGLONG SetupSupport;
+    PULONGLONG SetupSupport = NULLPTR;
     ULONGLONG Indications;
     EFI_STATUS Status;
 
     /* Check if booting into firmware interface is supported */
-    Status = BlGetEfiVariable(&Guid, L"OsIndicationsSupported", (PVOID*)&SetupSupport);
+    Status = GetEfiVariable(&Guid, L"OsIndicationsSupported", (PVOID*)&SetupSupport);
     if(Status != STATUS_EFI_SUCCESS || !(*SetupSupport & EFI_OS_INDICATIONS_BOOT_TO_FW_UI))
     {
         /* Reboot into firmware setup is not supported */
-        BlDebugPrint(L"WARNING: Reboot into firmware setup interface not supported\n");
+        Debug::Print(L"WARNING: Reboot into firmware setup interface not supported\n");
+        if(SetupSupport)
+        {
+            Memory::FreePool((PVOID)SetupSupport);
+        }
         return STATUS_EFI_UNSUPPORTED;
     }
 
+    Memory::FreePool((PVOID)SetupSupport);
+
     /* Get the value of OsIndications variable */
     Indications = 0;
-    Status = BlGetEfiVariable(&Guid, L"OsIndications", (PVOID)&Indications);
+    Status = GetEfiVariable(&Guid, L"OsIndications", (PVOID*)&Indications);
 
     /* Enable FW setup on next boot */
     Indications |= EFI_OS_INDICATIONS_BOOT_TO_FW_UI;
-    Status = BlSetEfiVariable(&Guid, L"OsIndications", (PVOID)&Indications, sizeof(Indications));
+    Status = SetEfiVariable(&Guid, L"OsIndications", (PVOID)&Indications, sizeof(Indications));
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to update OsIndications variable */
@@ -48,7 +54,7 @@ BlEnterFirmwareSetup()
     }
 
     /* Reboot into firmware setup */
-    BlRebootSystem();
+    RebootSystem();
 
     /* Must not reach this point, just make the compiler happy */
     return STATUS_EFI_SUCCESS;
@@ -63,33 +69,33 @@ BlEnterFirmwareSetup()
  */
 XTCDECL
 EFI_STATUS
-BlExitBootServices()
+EfiUtils::ExitBootServices()
 {
     PEFI_MEMORY_MAP MemoryMap;
     EFI_STATUS Status;
     ULONG Counter;
 
     /* Boot Services might be partially shutdown, so mark them as unavailable */
-    BlpStatus.BootServices = FALSE;
+    XtLoader::DisableBootServices();
 
     /* Allocate buffer for EFI memory map */
-    Status = BlAllocateMemoryPool(sizeof(EFI_MEMORY_MAP), (PVOID*)&MemoryMap);
+    Status = Memory::AllocatePool(sizeof(EFI_MEMORY_MAP), (PVOID*)&MemoryMap);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Memory allocation failure */
-        BlDebugPrint(L"ERROR: Memory allocation failure (Status Code: 0x%zX)\n", Status);
+        Debug::Print(L"ERROR: Memory allocation failure (Status Code: 0x%zX)\n", Status);
         return Status;
     }
 
     /* Zero fill the buffer and initialize counter */
-    RtlZeroMemory(MemoryMap, sizeof(EFI_MEMORY_MAP));
+    RTL::Memory::ZeroMemory(MemoryMap, sizeof(EFI_MEMORY_MAP));
     Counter = 0xFF;
 
     /* Attempt to exit boot services */
     while(Counter > 0)
     {
         /* Get memory map each time as it can change between two calls */
-        Status = BlGetMemoryMap(MemoryMap);
+        Status = Memory::GetMemoryMap(MemoryMap);
         if(Status != STATUS_EFI_SUCCESS)
         {
             /* Failed to get new memory map */
@@ -97,7 +103,8 @@ BlExitBootServices()
         }
 
         /* Exit boot services */
-        Status = EfiSystemTable->BootServices->ExitBootServices(EfiImageHandle, MemoryMap->MapKey);
+        Status = XtLoader::GetEfiSystemTable()->BootServices->ExitBootServices(XtLoader::GetEfiImageHandle(),
+                                                                               MemoryMap->MapKey);
         if(Status == STATUS_EFI_SUCCESS)
         {
             break;
@@ -126,25 +133,26 @@ BlExitBootServices()
  */
 XTCDECL
 EFI_STATUS
-BlGetConfigurationTable(IN PEFI_GUID TableGuid,
+EfiUtils::GetConfigurationTable(IN PEFI_GUID TableGuid,
                                 OUT PVOID *Table)
 {
     SIZE_T Index;
 
     /* Iterate through all system configuration tables */
-    for(Index = 0; Index < EfiSystemTable->NumberOfTableEntries; Index++)
+    for(Index = 0; Index < XtLoader::GetEfiSystemTable()->NumberOfTableEntries; Index++)
     {
         /* Check if this table matches requested table */
-        if(RtlCompareGuids((PGUID)&(EfiSystemTable->ConfigurationTable[Index].VendorGuid), (PGUID)TableGuid))
+        if(RTL::Guid::CompareGuids((PGUID)&(XtLoader::GetEfiSystemTable()->ConfigurationTable[Index].VendorGuid),
+                                   (PGUID)TableGuid))
         {
             /* Found requested table, return success */
-            *Table = EfiSystemTable->ConfigurationTable[Index].VendorTable;
+            *Table = XtLoader::GetEfiSystemTable()->ConfigurationTable[Index].VendorTable;
             return STATUS_EFI_SUCCESS;
         }
     }
 
     /* Table not found */
-    *Table = NULL;
+    *Table = NULLPTR;
     return STATUS_EFI_NOT_FOUND;
 }
 
@@ -166,17 +174,17 @@ BlGetConfigurationTable(IN PEFI_GUID TableGuid,
  */
 XTCDECL
 EFI_STATUS
-BlGetEfiVariable(IN PEFI_GUID Vendor,
+EfiUtils::GetEfiVariable(IN PEFI_GUID Vendor,
-                 IN PWCHAR VariableName,
+                         IN PCWSTR VariableName,
                          OUT PVOID *VariableValue)
 {
     EFI_STATUS Status;
     PVOID Buffer;
-    UINT_PTR Size;
+    UINT_PTR Size = 0;
 
     /* Allocate a buffer for storing a variable's value */
     Size = EFI_MAXIMUM_VARIABLE_SIZE * sizeof(PWCHAR);
-    Status = BlAllocateMemoryPool(Size, (PVOID*)&Buffer);
+    Status = Memory::AllocatePool(Size, (PVOID*)&Buffer);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Memory allocation failure */
@@ -184,7 +192,8 @@ BlGetEfiVariable(IN PEFI_GUID Vendor,
     }
 
     /* Attempt to get variable value */
-    Status = EfiSystemTable->RuntimeServices->GetVariable(VariableName, Vendor, NULL, &Size, Buffer);
+    Status = XtLoader::GetEfiSystemTable()->RuntimeServices->GetVariable((PWCHAR)VariableName, Vendor, NULLPTR,
+                                                                         &Size, Buffer);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to get variable, probably not found such one */
@@ -210,7 +219,7 @@ BlGetEfiVariable(IN PEFI_GUID Vendor,
  */
 XTCDECL
 ULONGLONG
-BlGetRandomValue(IN OUT PULONGLONG RNGBuffer)
+EfiUtils::GetRandomValue(IN OUT PULONGLONG RNGBuffer)
 {
     /* Recalculate RNG buffer with XORSHIFT */
     *RNGBuffer ^= *RNGBuffer >> 12;
@@ -230,21 +239,21 @@ BlGetRandomValue(IN OUT PULONGLONG RNGBuffer)
  */
 XTCDECL
 INT_PTR
-BlGetSecureBootStatus()
+EfiUtils::GetSecureBootStatus()
 {
     EFI_GUID VarGuid = EFI_GLOBAL_VARIABLE_GUID;
     INT_PTR SecureBootStatus = 0;
-    UCHAR VarValue = 0;
+    INT_PTR VarValue = 0;
     UINT_PTR Size;
 
-    Size = sizeof(VarValue);
+    Size = sizeof(INT_PTR);
-    if(EfiSystemTable->RuntimeServices->GetVariable(L"SecureBoot", &VarGuid,
+    if(XtLoader::GetEfiSystemTable()->RuntimeServices->GetVariable((PWCHAR)L"SecureBoot", &VarGuid,
-       NULL, &Size, &VarValue) == STATUS_EFI_SUCCESS)
+       NULLPTR, &Size, &VarValue) == STATUS_EFI_SUCCESS)
     {
-        SecureBootStatus = (INT_PTR)VarValue;
+        SecureBootStatus = VarValue;
-
+        Size = sizeof(INT_PTR);
-        if((EfiSystemTable->RuntimeServices->GetVariable(L"SetupMode", &VarGuid,
+        if((XtLoader::GetEfiSystemTable()->RuntimeServices->GetVariable((PWCHAR)L"SetupMode", &VarGuid,
-           NULL, &Size, &VarValue) == STATUS_EFI_SUCCESS) && VarValue != 0)
+           NULLPTR, &Size, &VarValue) == STATUS_EFI_SUCCESS) && VarValue != 0)
         {
             SecureBootStatus = -1;
         }
@@ -266,7 +275,7 @@ BlGetSecureBootStatus()
  */
 XTCDECL
 EFI_STATUS
-BlInitializeEntropy(PULONGLONG RNGBuffer)
+EfiUtils::InitializeEntropy(PULONGLONG RNGBuffer)
 {
     EFI_GUID RngGuid = EFI_RNG_PROTOCOL_GUID;
     PEFI_RNG_PROTOCOL Rng;
@@ -274,11 +283,11 @@ BlInitializeEntropy(PULONGLONG RNGBuffer)
     ULONGLONG Seed;
 
     /* Initialize variables */
-    Rng = NULL;
+    Rng = NULLPTR;
     Seed = 0;
 
     /* Locate RNG protocol */
-    Status = EfiSystemTable->BootServices->LocateProtocol(&RngGuid, NULL, (PVOID *)&Rng);
+    Status = XtLoader::GetEfiSystemTable()->BootServices->LocateProtocol(&RngGuid, NULLPTR, (PVOID *)&Rng);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to locate RNG protocol, return status code */
@@ -286,7 +295,7 @@ BlInitializeEntropy(PULONGLONG RNGBuffer)
     }
 
     /* Get RNG value using the default algorithm */
-    Status = Rng->GetRNG(Rng, NULL, 8, (PUCHAR)&Seed);
+    Status = Rng->GetRNG(Rng, NULLPTR, 8, (PUCHAR)&Seed);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to get RNG value, return status code */
@@ -319,13 +328,14 @@ BlInitializeEntropy(PULONGLONG RNGBuffer)
  */
 XTCDECL
 EFI_STATUS
-BlLoadEfiImage(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
+EfiUtils::LoadEfiImage(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
                        IN PVOID ImageData,
                        IN SIZE_T ImageSize,
                        OUT PEFI_HANDLE ImageHandle)
 {
     /* Load EFI image */
-    return EfiSystemTable->BootServices->LoadImage(FALSE, EfiImageHandle, DevicePath, ImageData, ImageSize, ImageHandle);
+    return XtLoader::GetEfiSystemTable()->BootServices->LoadImage(FALSE, XtLoader::GetEfiImageHandle(), DevicePath,
+                                                                  ImageData, ImageSize, ImageHandle);
 }
 
 /**
@@ -337,10 +347,10 @@ BlLoadEfiImage(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
  */
 XTCDECL
 EFI_STATUS
-BlRebootSystem()
+EfiUtils::RebootSystem()
 {
     /* Reboot machine */
-    return EfiSystemTable->RuntimeServices->ResetSystem(EfiResetCold, STATUS_EFI_SUCCESS, 0, NULL);
+    return XtLoader::GetEfiSystemTable()->RuntimeServices->ResetSystem(EfiResetCold, STATUS_EFI_SUCCESS, 0, NULLPTR);
 }
 
 /**
@@ -364,8 +374,8 @@ BlRebootSystem()
  */
 XTCDECL
 EFI_STATUS
-BlSetEfiVariable(IN PEFI_GUID Vendor,
+EfiUtils::SetEfiVariable(IN PEFI_GUID Vendor,
-                 IN PWCHAR VariableName,
+                         IN PCWSTR VariableName,
                          IN PVOID VariableValue,
                          IN UINT_PTR Size)
 {
@@ -373,7 +383,8 @@ BlSetEfiVariable(IN PEFI_GUID Vendor,
 
     /* Set EFI variable */
     Attributes = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS;
-    return EfiSystemTable->RuntimeServices->SetVariable(VariableName, Vendor, Attributes, Size, VariableValue);
+    return XtLoader::GetEfiSystemTable()->RuntimeServices->SetVariable((PWCHAR)VariableName, Vendor, Attributes,
+                                                                       Size, VariableValue);
 }
 
 /**
@@ -385,10 +396,10 @@ BlSetEfiVariable(IN PEFI_GUID Vendor,
  */
 XTCDECL
 EFI_STATUS
-BlShutdownSystem()
+EfiUtils::ShutdownSystem()
 {
     /* Shutdown machine */
-    return EfiSystemTable->RuntimeServices->ResetSystem(EfiResetShutdown, STATUS_EFI_SUCCESS, 0, NULL);
+    return XtLoader::GetEfiSystemTable()->RuntimeServices->ResetSystem(EfiResetShutdown, STATUS_EFI_SUCCESS, 0, NULLPTR);
 }
 
 /**
@@ -403,9 +414,9 @@ BlShutdownSystem()
  */
 XTCDECL
 VOID
-BlSleepExecution(IN ULONG_PTR Milliseconds)
+EfiUtils::SleepExecution(IN ULONG_PTR Milliseconds)
 {
-    EfiSystemTable->BootServices->Stall(Milliseconds * 1000);
+    XtLoader::GetEfiSystemTable()->BootServices->Stall(Milliseconds * 1000);
 }
 
 /**
@@ -420,9 +431,9 @@ BlSleepExecution(IN ULONG_PTR Milliseconds)
  */
 XTCDECL
 EFI_STATUS
-BlStartEfiImage(IN EFI_HANDLE ImageHandle)
+EfiUtils::StartEfiImage(IN EFI_HANDLE ImageHandle)
 {
-    return EfiSystemTable->BootServices->StartImage(ImageHandle, NULL, NULL);
+    return XtLoader::GetEfiSystemTable()->BootServices->StartImage(ImageHandle, NULLPTR, NULLPTR);
 }
 
 /**
@@ -443,9 +454,9 @@ BlStartEfiImage(IN EFI_HANDLE ImageHandle)
  */
 XTCDECL
 EFI_STATUS
-BlWaitForEfiEvent(IN UINT_PTR NumberOfEvents,
+EfiUtils::WaitForEfiEvent(IN UINT_PTR NumberOfEvents,
                           IN PEFI_EVENT Event,
                           OUT PUINT_PTR Index)
 {
-    return EfiSystemTable->BootServices->WaitForEvent(NumberOfEvents, Event, Index);
+    return XtLoader::GetEfiSystemTable()->BootServices->WaitForEvent(NumberOfEvents, Event, Index);
 }

boot/xtldr/includes/libxtos.hh

@@ -0,0 +1,142 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/includes/libxtos.hh
+ * DESCRIPTION:     XT Loader to LIBXTOS interface
+ * DEVELOPERS:      Aiken Harris <harraiken91@gmail.com>
+ */
+
+#ifndef __XTLDR_LIBXTOS_HH
+#define __XTLDR_LIBXTOS_HH
+
+#include <xtblapi.h>
+
+
+/* Minimal forward references for AR classes used by XTLDR */
+namespace AR
+{
+    class CpuFunc
+    {
+        public:
+            STATIC XTCDECL BOOLEAN CpuId(IN OUT PCPUID_REGISTERS Registers);
+            STATIC XTCDECL ULONG_PTR ReadControlRegister(IN USHORT ControlRegister);
+            STATIC XTCDECL ULONGLONG ReadModelSpecificRegister(IN ULONG Register);
+            STATIC XTCDECL VOID WriteControlRegister(IN USHORT ControlRegister,
+                                                     IN UINT_PTR Value);
+    };
+
+    class ProcSup
+    {
+        public:
+            STATIC XTAPI VOID GetTrampolineInformation(IN TRAMPOLINE_TYPE TrampolineType,
+                                                       OUT PVOID *TrampolineCode,
+                                                       OUT PULONG_PTR TrampolineSize);
+    };
+}
+
+/* Minimal forward references for HL classes used by XTLDR */
+namespace HL
+{
+    class ComPort
+    {
+        public:
+            STATIC XTCDECL XTSTATUS InitializeComPort(IN OUT PCPPORT Port,
+                                                      IN PUCHAR PortAddress,
+                                                      IN ULONG BaudRate);
+            STATIC XTCDECL XTSTATUS WriteComPort(IN PCPPORT Port,
+                                                 IN UCHAR Byte);
+    };
+
+    class IoPort
+    {
+        public:
+            STATIC XTCDECL UCHAR ReadPort8(IN USHORT Port);
+            STATIC XTCDECL USHORT ReadPort16(IN USHORT Port);
+            STATIC XTCDECL ULONG ReadPort32(IN USHORT Port);
+            STATIC XTCDECL VOID WritePort8(IN USHORT Port,
+                                           IN UCHAR Value);
+            STATIC XTCDECL VOID WritePort16(IN USHORT Port,
+                                            IN USHORT Value);
+            STATIC XTCDECL VOID WritePort32(IN USHORT Port,
+                                            IN ULONG Value);
+    };
+}
+
+/* Minimal forward references for RTL classes used by XTLDR */
+namespace RTL
+{
+    class Guid
+    {
+        public:
+            STATIC XTAPI BOOLEAN CompareGuids(IN PGUID Guid1,
+                                              IN PGUID Guid2);
+    };
+
+    class LinkedList
+    {
+        public:
+            STATIC XTCDECL VOID InitializeListHead(IN PLIST_ENTRY ListHead);
+            STATIC XTCDECL VOID InsertHeadList(IN OUT PLIST_ENTRY ListHead,
+                                               IN PLIST_ENTRY Entry);
+            STATIC XTCDECL VOID InsertTailList(IN OUT PLIST_ENTRY ListHead,
+                                               IN PLIST_ENTRY Entry);
+            STATIC XTCDECL VOID RemoveEntryList(IN PLIST_ENTRY Entry);
+    };
+
+    class Memory
+    {
+        public:
+            STATIC XTAPI SIZE_T CompareMemory(IN PCVOID LeftBuffer,
+                                              IN PCVOID RightBuffer,
+                                              IN SIZE_T Length);
+            STATIC XTAPI VOID CopyMemory(OUT PVOID Destination,
+                                         IN PCVOID Source,
+                                         IN SIZE_T Length);
+            STATIC XTAPI VOID MoveMemory(OUT PVOID Destination,
+                                         IN PCVOID Source,
+                                         IN SIZE_T Length);
+            STATIC XTAPI VOID SetMemory(OUT PVOID Destination,
+                                        IN UCHAR Byte,
+                                        IN SIZE_T Length);
+            STATIC XTAPI VOID ZeroMemory(OUT PVOID Destination,
+                                         IN SIZE_T Length);
+    };
+
+    class String
+    {
+        public:
+            STATIC XTAPI SIZE_T CompareString(IN PCSTR String1,
+                                              IN PCSTR String2,
+                                              IN SIZE_T Length);
+            STATIC XTAPI SIZE_T StringLength(IN PCSTR String,
+                                             IN SIZE_T MaxLength);
+            STATIC XTAPI SIZE_T StringToWideString(OUT PWCHAR Destination,
+                                                   IN PCSTR *Source,
+                                                   IN SIZE_T Length);
+            STATIC XTAPI PCHAR TrimString(IN PCHAR String);
+    };
+
+    class WideString
+    {
+        public:
+            STATIC XTAPI SIZE_T CompareWideString(IN PCWSTR String1,
+                                                  IN PCWSTR String2,
+                                                  IN SIZE_T Length);
+            STATIC XTAPI SIZE_T CompareWideStringInsensitive(IN PCWSTR String1,
+                                                             IN PCWSTR String2,
+                                                             IN SIZE_T Length);
+            STATIC XTAPI PWCHAR ConcatenateWideString(OUT PWCHAR Destination,
+                                                      IN PWCHAR Source,
+                                                      IN SIZE_T Count);
+            STATIC XTAPI XTSTATUS FormatWideString(IN PRTL_PRINT_CONTEXT Context,
+                                                   IN PCWSTR Format,
+                                                   IN VA_LIST ArgumentList);
+            STATIC XTAPI PWCHAR TokenizeWideString(IN PWCHAR String,
+                                                   IN PCWSTR Delimiter,
+                                                   IN OUT PWCHAR *SavePtr);
+            STATIC XTAPI SIZE_T WideStringLength(IN PCWSTR String,
+                                                 IN SIZE_T MaxLength);
+    };
+}
+
+#endif /* __XTLDR_LIBXTOS_HH */

boot/xtldr/includes/xtldr.hh

@@ -0,0 +1,370 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/includes/xtldr.hh
+ * DESCRIPTION:     Top level header for XTLDR
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#ifndef __XTLDR_XTLDR_HH
+#define __XTLDR_XTLDR_HH
+
+#include <xtblapi.h>
+#include <xtver.h>
+
+#include <libxtos.hh>
+
+
+class BiosUtils
+{
+    private:
+        STATIC USHORT CursorX;
+        STATIC USHORT CursorY;
+        STATIC CONST USHORT VgaHeight;
+        STATIC CONST USHORT VgaWidth;
+
+    public:
+        STATIC XTCDECL VOID ClearScreen();
+        STATIC XTCDECL VOID Print(IN PCWSTR Format,
+                                  IN ...);
+        STATIC XTCDECL XTSTATUS PutChar(IN WCHAR Character);
+
+    private:
+        STATIC XTCDECL VOID ScrollScreen();
+        STATIC XTCDECL VOID UpdateCursor();
+};
+
+class BootUtils
+{
+    public:
+        STATIC XTCDECL BOOLEAN GetBooleanParameter(IN PCWSTR Parameters,
+                                                   IN PCWSTR Needle);
+};
+
+class Configuration
+{
+    private:
+        STATIC PLIST_ENTRY BootMenuList;
+        STATIC LIST_ENTRY Config;
+        STATIC LIST_ENTRY ConfigSections;
+        STATIC PCWSTR EditableConfigOptions[];
+
+    public:
+        STATIC XTCDECL BOOLEAN GetBooleanValue(IN PCWSTR ConfigName);
+        STATIC XTCDECL EFI_STATUS GetBootOptionValue(IN PLIST_ENTRY Options,
+                                                     IN PCWSTR OptionName,
+                                                     OUT PWCHAR *OptionValue);
+        STATIC XTCDECL VOID GetEditableOptions(OUT PCWSTR **OptionsArray,
+                                               OUT PULONG OptionsCount);
+        STATIC XTCDECL EFI_STATUS GetValue(IN PCWSTR ConfigName,
+                                           OUT PWCHAR *ConfigValue);
+        STATIC XTCDECL EFI_STATUS InitializeBootMenuList(IN ULONG MaxNameLength,
+                                                         OUT PXTBL_BOOTMENU_ITEM *MenuEntries,
+                                                         OUT PULONG EntriesCount,
+                                                         OUT PULONG DefaultId);
+        STATIC XTCDECL VOID InitializeConfiguration();
+        STATIC XTCDECL EFI_STATUS LoadConfiguration();
+        STATIC XTCDECL EFI_STATUS ParseCommandLine();
+        STATIC XTCDECL EFI_STATUS SetBootOptionValue(IN PLIST_ENTRY Options,
+                                                     IN PCWSTR OptionName,
+                                                     IN PCWSTR OptionValue);
+
+    private:
+        STATIC XTCDECL EFI_STATUS ParseConfigFile(IN CONST PCHAR RawConfig,
+                                                  OUT PLIST_ENTRY Configuration);
+        STATIC XTCDECL EFI_STATUS ReadConfigFile(IN PCWSTR ConfigDirectory,
+                                                 IN PCWSTR ConfigFile,
+                                                 OUT PCHAR *ConfigData);
+        STATIC XTCDECL EFI_STATUS SetValue(IN PCWSTR ConfigName,
+                                           IN PCWSTR ConfigValue);
+        STATIC XTCDECL VOID UpdateConfiguration(IN PLIST_ENTRY NewConfig);
+};
+
+class Console
+{
+    public:
+        STATIC XTCDECL VOID ClearLine(IN ULONGLONG LineNo);
+        STATIC XTCDECL VOID ClearScreen();
+        STATIC XTCDECL VOID DisableCursor();
+        STATIC XTCDECL VOID EnableCursor();
+        STATIC XTCDECL VOID InitializeConsole();
+        STATIC XTCDECL VOID Print(IN PCWSTR Format,
+                                  IN ...);
+        STATIC XTCDECL XTSTATUS PutChar(IN WCHAR Character);
+        STATIC XTCDECL VOID QueryMode(OUT PUINT_PTR ResX,
+                                      OUT PUINT_PTR ResY);
+        STATIC XTCDECL VOID ReadKeyStroke(OUT PEFI_INPUT_KEY Key);
+        STATIC XTCDECL VOID ResetInputBuffer();
+        STATIC XTCDECL VOID SetAttributes(IN ULONGLONG Attributes);
+        STATIC XTCDECL VOID SetCursorPosition(IN ULONGLONG PosX,
+                                              IN ULONGLONG PosY);
+        STATIC XTCDECL VOID Write(IN PCWSTR String);
+
+    private:
+        STATIC XTCDECL EFI_STATUS SetMode(IN ULONGLONG Mode);
+};
+
+class Debug
+{
+    private:
+        STATIC ULONG ComPortList[COMPORT_COUNT];
+        STATIC ULONG EnabledDebugPorts;
+        STATIC CPPORT SerialPort;
+
+    public:
+            STATIC XTCDECL EFI_STATUS InitializeDebugConsole();
+            STATIC XTCDECL VOID Print(IN PCWSTR Format,
+                                      IN ...);
+            STATIC XTCDECL XTSTATUS PutChar(IN WCHAR Character);
+            STATIC XTCDECL BOOLEAN SerialPortReady();
+
+    private:
+        STATIC XTCDECL EFI_STATUS ActivateSerialIOController();
+        STATIC XTCDECL EFI_STATUS InitializeSerialPort(IN ULONG PortNumber,
+                                                       IN ULONG PortAddress,
+                                                       IN ULONG BaudRate);
+};
+
+class EfiUtils
+{
+    public:
+        STATIC XTCDECL EFI_STATUS EnterFirmwareSetup();
+        STATIC XTCDECL EFI_STATUS ExitBootServices();
+        STATIC XTCDECL EFI_STATUS GetConfigurationTable(IN PEFI_GUID TableGuid,
+                                                       OUT PVOID *Table);
+        STATIC XTCDECL EFI_STATUS GetEfiVariable(IN PEFI_GUID Vendor,
+                                                 IN PCWSTR VariableName,
+                                                 OUT PVOID *VariableValue);
+        STATIC XTCDECL ULONGLONG GetRandomValue(IN OUT PULONGLONG RNGBuffer);
+        STATIC XTCDECL INT_PTR GetSecureBootStatus();
+        STATIC XTCDECL EFI_STATUS InitializeEntropy(PULONGLONG RNGBuffer);
+        STATIC XTCDECL EFI_STATUS LoadEfiImage(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
+                                               IN PVOID ImageData,
+                                               IN SIZE_T ImageSize,
+                                               OUT PEFI_HANDLE ImageHandle);
+        STATIC XTCDECL EFI_STATUS RebootSystem();
+        STATIC XTCDECL EFI_STATUS SetEfiVariable(IN PEFI_GUID Vendor,
+                                                 IN PCWSTR VariableName,
+                                                 IN PVOID VariableValue,
+                                                 IN UINT_PTR Size);
+        STATIC XTCDECL EFI_STATUS ShutdownSystem();
+        STATIC XTCDECL VOID SleepExecution(IN ULONG_PTR Milliseconds);
+        STATIC XTCDECL EFI_STATUS StartEfiImage(IN EFI_HANDLE ImageHandle);
+        STATIC XTCDECL EFI_STATUS WaitForEfiEvent(IN UINT_PTR NumberOfEvents,
+                                                  IN PEFI_EVENT Event,
+                                                  OUT PUINT_PTR Index);
+};
+
+class Memory
+{
+    public:
+        STATIC XTCDECL EFI_STATUS AllocatePages(IN EFI_ALLOCATE_TYPE AllocationType,
+                                                IN ULONGLONG NumberOfPages,
+                                                OUT PEFI_PHYSICAL_ADDRESS Memory);
+        STATIC XTCDECL EFI_STATUS AllocatePool(IN UINT_PTR Size,
+                                               OUT PVOID *Memory);
+        STATIC XTCDECL EFI_STATUS BuildPageMap(IN PXTBL_PAGE_MAPPING PageMap,
+                                               IN ULONG_PTR SelfMapAddress);
+        STATIC XTCDECL EFI_STATUS FreePages(IN ULONGLONG NumberOfPages,
+                                            IN EFI_PHYSICAL_ADDRESS Memory);
+        STATIC XTCDECL EFI_STATUS FreePool(IN PVOID Memory);
+        STATIC XTCDECL VOID GetMappingsCount(IN PXTBL_PAGE_MAPPING PageMap,
+                                             OUT PULONG NumberOfMappings);
+        STATIC XTCDECL EFI_STATUS GetMemoryMap(OUT PEFI_MEMORY_MAP MemoryMap);
+        STATIC XTCDECL PVOID GetVirtualAddress(IN PXTBL_PAGE_MAPPING PageMap,
+                                               IN PVOID PhysicalAddress);
+        STATIC XTCDECL VOID InitializePageMap(OUT PXTBL_PAGE_MAPPING PageMap,
+                                              IN SHORT PageMapLevel,
+                                              IN PAGE_SIZE PageSize);
+        STATIC XTCDECL EFI_STATUS MapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
+                                               IN OUT PVOID *MemoryMapAddress,
+                                               IN PBL_GET_MEMTYPE_ROUTINE GetMemoryTypeRoutine);
+        STATIC XTCDECL EFI_STATUS MapPage(IN PXTBL_PAGE_MAPPING PageMap,
+                                          IN ULONG_PTR VirtualAddress,
+                                          IN ULONG_PTR PhysicalAddress,
+                                          IN ULONG NumberOfPages);
+        STATIC XTCDECL EFI_STATUS MapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
+                                                   IN PVOID VirtualAddress,
+                                                   IN PVOID PhysicalAddress,
+                                                   IN ULONGLONG NumberOfPages,
+                                                   IN LOADER_MEMORY_TYPE MemoryType);
+        STATIC XTCDECL PVOID PhysicalAddressToVirtual(IN PVOID PhysicalAddress,
+                                                      IN PVOID PhysicalBase,
+                                                      IN PVOID VirtualBase);
+        STATIC XTCDECL EFI_STATUS PhysicalListToVirtual(IN PXTBL_PAGE_MAPPING PageMap,
+                                                        IN OUT PLIST_ENTRY ListHead,
+                                                        IN PVOID PhysicalBase,
+                                                        IN PVOID VirtualBase);
+
+    private:
+        STATIC XTCDECL LOADER_MEMORY_TYPE GetLoaderMemoryType(IN EFI_MEMORY_TYPE EfiMemoryType);
+        STATIC XTCDECL EFI_STATUS GetNextPageTable(IN PXTBL_PAGE_MAPPING PageMap,
+                                                   IN PVOID PageTable,
+                                                   IN SIZE_T Entry,
+                                                   OUT PVOID *NextPageTable);
+        STATIC XTCDECL EFI_STATUS SelfMapPml(IN PXTBL_PAGE_MAPPING PageMap,
+                                             IN ULONG_PTR SelfMapAddress);
+};
+
+class Protocol
+{
+    private:
+        STATIC LIST_ENTRY BootProtocols;
+        STATIC XTBL_LOADER_PROTOCOL LoaderProtocol;
+        STATIC LIST_ENTRY LoadedModules;
+
+    public:
+        STATIC XTCDECL EFI_STATUS CloseProtocol(IN PEFI_HANDLE Handle,
+                                                IN PEFI_GUID ProtocolGuid);
+        STATIC XTCDECL EFI_STATUS FindBootProtocol(IN PCWSTR SystemType,
+                                                   OUT PEFI_GUID BootProtocolGuid);
+        STATIC XTCDECL PLIST_ENTRY GetModulesList();
+        STATIC XTCDECL EFI_STATUS InstallProtocol(IN PVOID Interface,
+                                                 IN PEFI_GUID Guid);
+        STATIC XTCDECL VOID InitializeProtocol();
+        STATIC XTCDECL EFI_STATUS InvokeBootProtocol(IN PWCHAR ShortName,
+                                                     IN PLIST_ENTRY OptionsList);
+        STATIC XTCDECL EFI_STATUS LoadModule(IN PWCHAR ModuleName);
+        STATIC XTCDECL EFI_STATUS LoadModules(IN PWCHAR ModulesList);
+        STATIC XTCDECL EFI_STATUS LocateProtocolHandles(OUT PEFI_HANDLE *Handles,
+                                                        OUT PUINT_PTR Count,
+                                                        IN PEFI_GUID ProtocolGuid);
+        STATIC XTCDECL EFI_STATUS OpenProtocol(OUT PEFI_HANDLE Handle,
+                                               OUT PVOID *ProtocolHandler,
+                                               IN PEFI_GUID ProtocolGuid);
+        STATIC XTCDECL EFI_STATUS OpenProtocolHandle(IN EFI_HANDLE Handle,
+                                                     OUT PVOID *ProtocolHandler,
+                                                     IN PEFI_GUID ProtocolGuid);
+        STATIC XTCDECL EFI_STATUS RegisterBootProtocol(IN PCWSTR SystemType,
+                                                       IN PEFI_GUID BootProtocolGuid);
+        STATIC XTCDECL EFI_STATUS InstallXtLoaderProtocol();
+
+    private:
+        STATIC XTCDECL EFI_STATUS GetModuleInformation(IN PWCHAR SectionData,
+                                                       IN ULONG SectionSize,
+                                                       OUT PXTBL_MODULE_INFO ModuleInfo);
+        STATIC XTCDECL EFI_STATUS GetModuleInfoStrings(IN PWCHAR SectionData,
+                                                       IN ULONG SectionSize,
+                                                       OUT PWCHAR **ModInfo,
+                                                       OUT PULONG InfoCount);
+};
+
+class Shell
+{
+    public:
+        STATIC XTCDECL VOID StartLoaderShell();
+
+    private:
+        STATIC XTCDECL VOID PrintPrompt();
+};
+
+class TextUi
+{
+    public:
+        STATIC XTCDECL VOID DisplayBootMenu();
+        STATIC XTCDECL VOID DisplayErrorDialog(IN PCWSTR Caption,
+                                               IN PCWSTR Message);
+        STATIC XTCDECL VOID DisplayInfoDialog(IN PCWSTR Caption,
+                                              IN PCWSTR Message);
+        STATIC XTCDECL VOID DisplayInputDialog(IN PCWSTR Caption,
+                                               IN PCWSTR Message,
+                                               IN OUT PWCHAR *InputFieldText);
+        STATIC XTCDECL XTBL_DIALOG_HANDLE DisplayProgressDialog(IN PCWSTR Caption,
+                                                                IN PCWSTR Message,
+                                                                IN UCHAR Percentage);
+        STATIC XTCDECL VOID UpdateProgressBar(IN PXTBL_DIALOG_HANDLE Handle,
+                                              IN PCWSTR Message,
+                                              IN UCHAR Percentage);
+
+    private:
+        STATIC XTCDECL VOID DetermineDialogBoxSize(IN OUT PXTBL_DIALOG_HANDLE Handle,
+                                                   IN PCWSTR Message);
+        STATIC XTCDECL VOID DisplayEditMenu(IN PXTBL_BOOTMENU_ITEM MenuEntry);
+        STATIC XTCDECL VOID DrawBootMenu(OUT PXTBL_DIALOG_HANDLE Handle);
+        STATIC XTCDECL VOID DrawBootMenuEntry(IN PXTBL_DIALOG_HANDLE Handle,
+                                              IN PWCHAR MenuEntry,
+                                              IN UINT Position,
+                                              IN BOOLEAN Highlighted);
+        STATIC XTCDECL VOID DrawDialogBox(IN OUT PXTBL_DIALOG_HANDLE Handle,
+                                          IN PCWSTR Caption,
+                                          IN PCWSTR Message);
+        STATIC XTCDECL VOID DrawButton(IN PXTBL_DIALOG_HANDLE Handle);
+        STATIC XTCDECL VOID DrawInputField(IN PXTBL_DIALOG_HANDLE Handle,
+                                           IN PWCHAR InputFieldText);
+        STATIC XTCDECL VOID DrawMessage(IN PXTBL_DIALOG_HANDLE Handle,
+                                        IN PCWSTR Message);
+        STATIC XTCDECL VOID DrawProgressBar(IN PXTBL_DIALOG_HANDLE Handle,
+                                            IN UCHAR Percentage);
+        STATIC XTCDECL VOID DrawEditMenu(OUT PXTBL_DIALOG_HANDLE Handle);
+        STATIC XTCDECL EFI_STATUS DrawEditMenuEntry(IN PXTBL_DIALOG_HANDLE Handle,
+                                                    IN PCWSTR OptionName,
+                                                    IN PCWSTR OptionValue,
+                                                    IN UINT Position,
+                                                    IN BOOLEAN Highlighted);
+};
+
+class Volume
+{
+    private:
+        STATIC LIST_ENTRY EfiBlockDevices;
+
+    public:
+        STATIC XTCDECL EFI_STATUS CloseVolume(IN PEFI_HANDLE VolumeHandle);
+        STATIC XTCDECL EFI_STATUS EnumerateBlockDevices();
+        STATIC XTCDECL EFI_STATUS FindDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL FsHandle,
+                                                       IN CONST PWCHAR FileSystemPath,
+                                                       OUT PEFI_DEVICE_PATH_PROTOCOL* DevicePath);
+        STATIC XTCDECL EFI_STATUS GetEfiPath(IN PWCHAR SystemPath,
+                                             OUT PWCHAR *EfiPath);
+        STATIC XTCDECL EFI_STATUS GetDevicePath(IN PWCHAR SystemPath,
+                                                OUT PEFI_DEVICE_PATH_PROTOCOL *DevicePath,
+                                                OUT PWCHAR *ArcName,
+                                                OUT PWCHAR *Path);
+        STATIC XTCDECL EFI_STATUS OpenVolume(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
+                                             OUT PEFI_HANDLE DiskHandle,
+                                             OUT PEFI_FILE_HANDLE *FsHandle);
+        STATIC XTCDECL EFI_STATUS ReadFile(IN PEFI_FILE_HANDLE DirHandle,
+                                           IN PCWSTR FileName,
+                                           OUT PVOID *FileData,
+                                           OUT PSIZE_T FileSize);
+
+
+    private:
+        STATIC XTCDECL EFI_STATUS DiscoverEfiBlockDevices(OUT PLIST_ENTRY BlockDevices);
+        STATIC XTCDECL EFI_STATUS DissectArcPath(IN PWCHAR SystemPath,
+                                                 OUT PWCHAR *ArcName,
+                                                 OUT PWCHAR *Path,
+                                                 OUT PUSHORT DriveType,
+                                                 OUT PULONG DriveNumber,
+                                                 OUT PULONG PartNumber);
+        STATIC XTCDECL PEFI_DEVICE_PATH_PROTOCOL DuplicateDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath);
+        STATIC XTCDECL EFI_STATUS FindLastBlockDeviceNode(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
+                                                          OUT PEFI_DEVICE_PATH_PROTOCOL *LastNode);
+        STATIC XTCDECL BOOLEAN FindParentBlockDevice(IN PLIST_ENTRY BlockDevices,
+                                                     IN PEFI_BLOCK_DEVICE_DATA ChildNode,
+                                                     OUT PEFI_BLOCK_DEVICE_DATA *ParentNode);
+};
+
+class XtLoader
+{
+    private:
+        STATIC PBL_XT_BOOT_MENU BootMenu;
+        STATIC EFI_HANDLE EfiImageHandle;
+        STATIC PEFI_SYSTEM_TABLE EfiSystemTable;
+        STATIC XTBL_STATUS LoaderStatus;
+
+    public:
+        STATIC XTCDECL VOID DisableBootServices();
+        STATIC XTCDECL BOOLEAN GetBootServicesStatus();
+        STATIC XTCDECL EFI_HANDLE GetEfiImageHandle();
+        STATIC XTCDECL PEFI_SYSTEM_TABLE GetEfiSystemTable();
+        STATIC XTCDECL VOID GetLoaderImageInformation(PVOID *LoaderBase,
+                                                      PULONGLONG LoaderSize);
+        STATIC XTCDECL INT_PTR GetSecureBootStatus();
+        STATIC XTCDECL VOID InitializeBootLoader(IN EFI_HANDLE ImageHandle,
+                                                 IN PEFI_SYSTEM_TABLE SystemTable);
+        STATIC XTCDECL VOID RegisterBootMenu(IN PVOID BootMenuRoutine);
+        STATIC XTCDECL VOID ShowBootMenu();
+};
+
+#endif /* __XTLDR_XTLDR_HH */

boot/xtldr/library/modproto.cc

@@ -1,12 +1,12 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/library/modproto.c
+ * FILE:            xtldr/library/modproto.cc
  * DESCRIPTION:     XT Boot Loader protocol support for XTLDR modules
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <xtldr.h>
+#include <xtldr.hh>
 
 
 /**
@@ -25,6 +25,7 @@
  *
  * @since XT 1.0
  */
+XTCLINK
 XTCDECL
 EFI_STATUS
 BlGetXtLdrProtocol(IN PEFI_SYSTEM_TABLE SystemTable,
@@ -32,13 +33,13 @@ BlGetXtLdrProtocol(IN PEFI_SYSTEM_TABLE SystemTable,
                    OUT PXTBL_LOADER_PROTOCOL *ProtocolHandler)
 {
     EFI_GUID ProtocolGuid = XT_BOOT_LOADER_PROTOCOL_GUID;
-    PEFI_HANDLE Handles = NULL;
+    PEFI_HANDLE Handles = NULLPTR;
     EFI_STATUS Status;
     UINT_PTR Count;
     UINT Index;
 
     /* Try to locate the handles */
-    Status = SystemTable->BootServices->LocateHandleBuffer(ByProtocol, &ProtocolGuid, NULL, &Count, &Handles);
+    Status = SystemTable->BootServices->LocateHandleBuffer(ByProtocol, &ProtocolGuid, NULLPTR, &Count, &Handles);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Unable to get handles */
@@ -53,7 +54,7 @@ BlGetXtLdrProtocol(IN PEFI_SYSTEM_TABLE SystemTable,
         {
             /* Try to open protocol */
             Status = SystemTable->BootServices->OpenProtocol(Handles[Index], &ProtocolGuid,
-                                                             (PVOID*)ProtocolHandler, ImageHandle, NULL,
+                                                             (PVOID*)ProtocolHandler, ImageHandle, NULLPTR,
                                                              EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
 
             /* Check if successfully opened the loader protocol */
@@ -69,7 +70,7 @@ BlGetXtLdrProtocol(IN PEFI_SYSTEM_TABLE SystemTable,
     SystemTable->BootServices->FreePool(Handles);
 
     /* Make sure the loaded protocol has been found */
-    if(*ProtocolHandler == NULL)
+    if(*ProtocolHandler == NULLPTR)
     {
         /* Protocol not found */
         return STATUS_EFI_NOT_FOUND;

boot/xtldr/memory.cc

@@ -1,18 +1,18 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/memory.c
+ * FILE:            xtldr/memory.cc
  * DESCRIPTION:     XT Boot Loader memory management
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <xtldr.h>
+#include <xtldr.hh>
 
 
 /**
  * This routine allocates one or more 4KB pages.
  *
- * @param Pages
+ * @param NumberOfPages
  *        The number of contiguous 4KB pages to allocate.
  *
  * @param Memory
@@ -24,10 +24,12 @@
  */
 XTCDECL
 EFI_STATUS
-BlAllocateMemoryPages(IN ULONGLONG Pages,
+Memory::AllocatePages(IN EFI_ALLOCATE_TYPE AllocationType,
+                      IN ULONGLONG NumberOfPages,
                       OUT PEFI_PHYSICAL_ADDRESS Memory)
 {
-    return EfiSystemTable->BootServices->AllocatePages(AllocateAnyPages, EfiLoaderData, Pages, Memory);
+    return XtLoader::GetEfiSystemTable()->BootServices->AllocatePages(AllocationType, EfiLoaderData,
+                                                                      NumberOfPages, Memory);
 }
 
 /**
@@ -45,17 +47,17 @@ BlAllocateMemoryPages(IN ULONGLONG Pages,
  */
 XTCDECL
 EFI_STATUS
-BlAllocateMemoryPool(IN UINT_PTR Size,
+Memory::AllocatePool(IN UINT_PTR Size,
                      OUT PVOID *Memory)
 {
     /* Allocate pool */
-    return EfiSystemTable->BootServices->AllocatePool(EfiLoaderData, Size, Memory);
+    return XtLoader::GetEfiSystemTable()->BootServices->AllocatePool(EfiLoaderData, Size, Memory);
 }
 
 /**
  * This routine frees memory pages.
  *
- * @param Pages
+ * @param NumberOfPages
  *        The number of contiguous 4 KB pages to free.
  *
  * @param Memory
@@ -67,10 +69,10 @@ BlAllocateMemoryPool(IN UINT_PTR Size,
  */
 XTCDECL
 EFI_STATUS
-BlFreeMemoryPages(IN ULONGLONG Pages,
+Memory::FreePages(IN ULONGLONG NumberOfPages,
                   IN EFI_PHYSICAL_ADDRESS Memory)
 {
-    return EfiSystemTable->BootServices->FreePages(Memory, Pages);
+    return XtLoader::GetEfiSystemTable()->BootServices->FreePages(Memory, NumberOfPages);
 }
 
 /**
@@ -85,10 +87,58 @@ BlFreeMemoryPages(IN ULONGLONG Pages,
  */
 XTCDECL
 EFI_STATUS
-BlFreeMemoryPool(IN PVOID Memory)
+Memory::FreePool(IN PVOID Memory)
 {
     /* Free pool */
-    return EfiSystemTable->BootServices->FreePool(Memory);
+    return XtLoader::GetEfiSystemTable()->BootServices->FreePool(Memory);
+}
+
+/**
+ * Converts EFI memory type to XTLDR memory type.
+ *
+ * @param EfiMemoryType
+ *        Specifies EFI memory type.
+ *
+ * @return This routine returns a mapped XTLDR memory type.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+LOADER_MEMORY_TYPE
+Memory::GetLoaderMemoryType(IN EFI_MEMORY_TYPE EfiMemoryType)
+{
+    LOADER_MEMORY_TYPE MemoryType;
+
+    /* Check EFI memory type and convert to XTLDR memory type */
+    switch(EfiMemoryType)
+    {
+        case EfiACPIMemoryNVS:
+        case EfiACPIReclaimMemory:
+        case EfiPalCode:
+        case EfiReservedMemoryType:
+            MemoryType = LoaderSpecialMemory;
+            break;
+        case EfiRuntimeServicesCode:
+        case EfiRuntimeServicesData:
+        case EfiMemoryMappedIO:
+        case EfiMemoryMappedIOPortSpace:
+            MemoryType = LoaderFirmwarePermanent;
+            break;
+        case EfiBootServicesData:
+        case EfiLoaderCode:
+        case EfiLoaderData:
+            MemoryType = LoaderFirmwareTemporary;
+            break;
+        case EfiUnusableMemory:
+            MemoryType = LoaderBad;
+            break;
+        default:
+            MemoryType = LoaderFree;
+            break;
+    }
+
+    /* Return XTLDR memory type */
+    return MemoryType;
 }
 
 /**
@@ -106,7 +156,7 @@ BlFreeMemoryPool(IN PVOID Memory)
  */
 XTCDECL
 VOID
-BlGetMappingsCount(IN PXTBL_PAGE_MAPPING PageMap,
+Memory::GetMappingsCount(IN PXTBL_PAGE_MAPPING PageMap,
                          OUT PULONG NumberOfMappings)
 {
     /* Return number of mappings */
@@ -125,24 +175,27 @@ BlGetMappingsCount(IN PXTBL_PAGE_MAPPING PageMap,
  */
 XTCDECL
 EFI_STATUS
-BlGetMemoryMap(OUT PEFI_MEMORY_MAP MemoryMap)
+Memory::GetMemoryMap(OUT PEFI_MEMORY_MAP MemoryMap)
 {
     EFI_STATUS Status;
 
-    if(MemoryMap == NULL)
+    if(MemoryMap == NULLPTR)
     {
         return STATUS_EFI_INVALID_PARAMETER;
     }
 
-    MemoryMap->Map = NULL;
+    MemoryMap->Map = NULLPTR;
     MemoryMap->MapSize = 0;
 
     /* Get memory map */
     do
     {
         /* Attempt do get EFI memory map */
-        Status = EfiSystemTable->BootServices->GetMemoryMap(&MemoryMap->MapSize, MemoryMap->Map, &MemoryMap->MapKey,
+        Status = XtLoader::GetEfiSystemTable()->BootServices->GetMemoryMap(&MemoryMap->MapSize,
-                                                            &MemoryMap->DescriptorSize, &MemoryMap->DescriptorVersion);
+                                                                           MemoryMap->Map,
+                                                                           &MemoryMap->MapKey,
+                                                                           &MemoryMap->DescriptorSize,
+                                                                           &MemoryMap->DescriptorVersion);
         if(Status == STATUS_EFI_SUCCESS)
         {
             /* Go further if succeeded */
@@ -154,19 +207,19 @@ BlGetMemoryMap(OUT PEFI_MEMORY_MAP MemoryMap)
             if(MemoryMap->Map)
             {
                 /* Free allocated memory */
-                BlFreeMemoryPool(MemoryMap->Map);
+                FreePool(MemoryMap->Map);
             }
             return Status;
         }
 
         /* Allocate the desired amount of memory */
         MemoryMap->MapSize += 2 * MemoryMap->DescriptorSize;
-        BlAllocateMemoryPool(MemoryMap->MapSize, (PVOID *)&MemoryMap->Map);
+        AllocatePool(MemoryMap->MapSize, (PVOID *)&MemoryMap->Map);
     }
     while(Status == STATUS_EFI_BUFFER_TOO_SMALL);
 
     /* Make sure memory map is set */
-    if(MemoryMap->Map == NULL)
+    if(MemoryMap->Map == NULLPTR)
     {
         /* Something went wrong */
         return STATUS_EFI_NO_MAPPING;
@@ -191,7 +244,7 @@ BlGetMemoryMap(OUT PEFI_MEMORY_MAP MemoryMap)
  */
 XTCDECL
 PVOID
-BlGetVirtualAddress(IN PXTBL_PAGE_MAPPING PageMap,
+Memory::GetVirtualAddress(IN PXTBL_PAGE_MAPPING PageMap,
                           IN PVOID PhysicalAddress)
 {
     PXTBL_MEMORY_MAPPING Mapping;
@@ -208,11 +261,11 @@ BlGetVirtualAddress(IN PXTBL_PAGE_MAPPING PageMap,
         if(Mapping->VirtualAddress)
         {
             /* Check if provided physical address is in range of this mapping */
-            if((PhysicalAddress >= Mapping->PhysicalAddress) &&
+            if(((UINT_PTR)PhysicalAddress >= (UINT_PTR)Mapping->PhysicalAddress) &&
-               (PhysicalAddress < Mapping->PhysicalAddress + (Mapping->NumberOfPages * EFI_PAGE_SIZE)))
+               ((UINT_PTR)PhysicalAddress < ((UINT_PTR)Mapping->PhysicalAddress + (Mapping->NumberOfPages * EFI_PAGE_SIZE))))
             {
                 /* Calculate virtual address based on the mapping and return it */
-                return PhysicalAddress - Mapping->PhysicalAddress + Mapping->VirtualAddress;
+                return (PVOID)(((UINT_PTR)PhysicalAddress - (UINT_PTR)Mapping->PhysicalAddress) + (UINT_PTR)Mapping->VirtualAddress);
             }
         }
 
@@ -242,12 +295,12 @@ BlGetVirtualAddress(IN PXTBL_PAGE_MAPPING PageMap,
  */
 XTCDECL
 VOID
-BlInitializePageMap(OUT PXTBL_PAGE_MAPPING PageMap,
+Memory::InitializePageMap(OUT PXTBL_PAGE_MAPPING PageMap,
                           IN SHORT PageMapLevel,
                           IN PAGE_SIZE PageSize)
 {
     /* Initialize memory mappings */
-    RtlInitializeListHead(&PageMap->MemoryMap);
+    RTL::LinkedList::InitializeListHead(&PageMap->MemoryMap);
     PageMap->MapSize = 0;
 
     /* Set page map size/level and memory map address */
@@ -273,7 +326,7 @@ BlInitializePageMap(OUT PXTBL_PAGE_MAPPING PageMap,
  */
 XTCDECL
 EFI_STATUS
-BlMapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
+Memory::MapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
                      IN OUT PVOID *MemoryMapAddress,
                      IN PBL_GET_MEMTYPE_ROUTINE GetMemoryTypeRoutine)
 {
@@ -286,21 +339,21 @@ BlMapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
     SIZE_T Index;
 
     /* Set virtual address as specified in argument */
-    VirtualAddress = *MemoryMapAddress;
+    VirtualAddress = (PUCHAR)*MemoryMapAddress;
 
     /* Check if custom memory type routine is specified */
-    if(GetMemoryTypeRoutine == NULL)
+    if(GetMemoryTypeRoutine == NULLPTR)
     {
         /* Use default memory type routine */
-        GetMemoryTypeRoutine = BlpGetLoaderMemoryType;
+        GetMemoryTypeRoutine = GetLoaderMemoryType;
     }
 
     /* Allocate and zero-fill buffer for EFI memory map */
-    BlAllocateMemoryPool(sizeof(EFI_MEMORY_MAP), (PVOID*)&MemoryMap);
+    AllocatePool(sizeof(EFI_MEMORY_MAP), (PVOID*)&MemoryMap);
-    RtlZeroMemory(MemoryMap, sizeof(EFI_MEMORY_MAP));
+    RTL::Memory::ZeroMemory(MemoryMap, sizeof(EFI_MEMORY_MAP));
 
     /* Get EFI memory map */
-    Status = BlGetMemoryMap(MemoryMap);
+    Status = GetMemoryMap(MemoryMap);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to get EFI memory map */
@@ -345,19 +398,19 @@ BlMapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
             }
 
             /* Convert EFI memory type into XTLDR memory type */
-            MemoryType = GetMemoryTypeRoutine(Descriptor->Type);
+            MemoryType = GetMemoryTypeRoutine((EFI_MEMORY_TYPE)Descriptor->Type);
 
             /* Do memory mappings depending on memory type */
             if(MemoryType == LoaderFirmwareTemporary)
             {
                 /* Map EFI firmware code */
-                Status = BlMapVirtualMemory(PageMap, (PVOID)Descriptor->PhysicalStart,
+                Status = MapVirtualMemory(PageMap, (PVOID)Descriptor->PhysicalStart,
                                           (PVOID)Descriptor->PhysicalStart, Descriptor->NumberOfPages, MemoryType);
             }
             else if(MemoryType != LoaderFree)
             {
                 /* Add any non-free memory mapping */
-                Status = BlMapVirtualMemory(PageMap, VirtualAddress, (PVOID)Descriptor->PhysicalStart,
+                Status = MapVirtualMemory(PageMap, VirtualAddress, (PVOID)Descriptor->PhysicalStart,
                                           Descriptor->NumberOfPages, MemoryType);
 
                 /* Calculate next valid virtual address */
@@ -366,7 +419,7 @@ BlMapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
             else
             {
                 /* Map all other memory as loader free */
-                Status = BlMapVirtualMemory(PageMap, NULL, (PVOID)Descriptor->PhysicalStart,
+                Status = MapVirtualMemory(PageMap, NULLPTR, (PVOID)Descriptor->PhysicalStart,
                                           Descriptor->NumberOfPages, LoaderFree);
             }
 
@@ -383,7 +436,7 @@ BlMapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
     }
 
     /* Always map first page */
-    Status = BlMapVirtualMemory(PageMap, NULL, (PVOID)0, 1, LoaderFirmwarePermanent);
+    Status = MapVirtualMemory(PageMap, NULLPTR, (PVOID)0, 1, LoaderFirmwarePermanent);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Mapping failed */
@@ -391,7 +444,7 @@ BlMapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
     }
 
     /* Map BIOS ROM and VRAM */
-    Status = BlMapVirtualMemory(PageMap, NULL, (PVOID)0xA0000, 0x60, LoaderFirmwarePermanent);
+    Status = MapVirtualMemory(PageMap, NULLPTR, (PVOID)0xA0000, 0x60, LoaderFirmwarePermanent);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Mapping failed */
@@ -427,7 +480,7 @@ BlMapEfiMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
  */
 XTCDECL
 EFI_STATUS
-BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
+Memory::MapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
                          IN PVOID VirtualAddress,
                          IN PVOID PhysicalAddress,
                          IN ULONGLONG NumberOfPages,
@@ -440,7 +493,7 @@ BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
     EFI_STATUS Status;
 
     /* Allocate memory for new mapping */
-    Status = BlAllocateMemoryPool(sizeof(XTBL_MEMORY_MAPPING), (PVOID *)&Mapping1);
+    Status = AllocatePool(sizeof(XTBL_MEMORY_MAPPING), (PVOID *)&Mapping1);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Memory allocation failure */
@@ -490,7 +543,7 @@ BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
             if(NumberOfMappedPages > 0)
             {
                 /* Pages associated to the mapping, allocate memory for it */
-                Status = BlAllocateMemoryPool(sizeof(XTBL_MEMORY_MAPPING), (PVOID*)&Mapping3);
+                Status = AllocatePool(sizeof(XTBL_MEMORY_MAPPING), (PVOID*)&Mapping3);
                 if(Status != STATUS_EFI_SUCCESS)
                 {
                     /* Memory allocation failure */
@@ -499,10 +552,10 @@ BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
 
                 /* Set mapping fields and insert it on the top */
                 Mapping3->PhysicalAddress = (PUCHAR)PhysicalAddressEnd + 1;
-                Mapping3->VirtualAddress = NULL;
+                Mapping3->VirtualAddress = NULLPTR;
                 Mapping3->NumberOfPages = NumberOfMappedPages;
                 Mapping3->MemoryType = Mapping2->MemoryType;
-                RtlInsertHeadList(&Mapping2->ListEntry, &Mapping3->ListEntry);
+                RTL::LinkedList::InsertHeadList(&Mapping2->ListEntry, &Mapping3->ListEntry);
             }
 
             /* Calculate number of pages and the end of the physical address */
@@ -526,7 +579,7 @@ BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
             if(NumberOfMappedPages > 0)
             {
                 /* Pages associated to the mapping, allocate memory for it */
-                Status = BlAllocateMemoryPool(sizeof(XTBL_MEMORY_MAPPING), (PVOID*)&Mapping3);
+                Status = AllocatePool(sizeof(XTBL_MEMORY_MAPPING), (PVOID*)&Mapping3);
                 if(Status != STATUS_EFI_SUCCESS)
                 {
                     /* Memory allocation failure */
@@ -535,10 +588,10 @@ BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
 
                 /* Set mapping fields and insert it on the top */
                 Mapping3->PhysicalAddress = Mapping1->PhysicalAddress;
-                Mapping3->VirtualAddress = NULL;
+                Mapping3->VirtualAddress = NULLPTR;
                 Mapping3->NumberOfPages = NumberOfMappedPages;
                 Mapping3->MemoryType = Mapping2->MemoryType;
-                RtlInsertHeadList(&Mapping2->ListEntry, &Mapping3->ListEntry);
+                RTL::LinkedList::InsertHeadList(&Mapping2->ListEntry, &Mapping3->ListEntry);
             }
 
             /* Calculate number of pages and the end of the physical address */
@@ -562,8 +615,8 @@ BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
             MappingListEntry = ListEntry->Flink;
 
             /* Remove mapping from the list and free up it's memory */
-            RtlRemoveEntryList(&Mapping2->ListEntry);
+            RTL::LinkedList::RemoveEntryList(&Mapping2->ListEntry);
-            Status = BlFreeMemoryPool(Mapping2);
+            Status = FreePool(Mapping2);
             ListEntry = MappingListEntry;
 
             /* Go to the next mapping */
@@ -574,7 +627,7 @@ BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
         if(Mapping2->PhysicalAddress > Mapping1->PhysicalAddress)
         {
             /* Insert new mapping in front */
-            RtlInsertHeadList(Mapping2->ListEntry.Blink, &Mapping1->ListEntry);
+            RTL::LinkedList::InsertHeadList(Mapping2->ListEntry.Blink, &Mapping1->ListEntry);
             return STATUS_EFI_SUCCESS;
         }
 
@@ -583,7 +636,7 @@ BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
     }
 
     /* Insert new mapping to the list and increase page map size */
-    RtlInsertTailList(&PageMap->MemoryMap, &Mapping1->ListEntry);
+    RTL::LinkedList::InsertTailList(&PageMap->MemoryMap, &Mapping1->ListEntry);
     PageMap->MapSize++;
 
     /* Return success */
@@ -608,7 +661,7 @@ BlMapVirtualMemory(IN OUT PXTBL_PAGE_MAPPING PageMap,
  */
 XTCDECL
 PVOID
-BlPhysicalAddressToVirtual(IN PVOID PhysicalAddress,
+Memory::PhysicalAddressToVirtual(IN PVOID PhysicalAddress,
                                  IN PVOID PhysicalBase,
                                  IN PVOID VirtualBase)
 {
@@ -637,7 +690,7 @@ BlPhysicalAddressToVirtual(IN PVOID PhysicalAddress,
  */
 XTCDECL
 EFI_STATUS
-BlPhysicalListToVirtual(IN PXTBL_PAGE_MAPPING PageMap,
+Memory::PhysicalListToVirtual(IN PXTBL_PAGE_MAPPING PageMap,
                               IN OUT PLIST_ENTRY ListHead,
                               IN PVOID PhysicalBase,
                               IN PVOID VirtualBase)
@@ -662,12 +715,12 @@ BlPhysicalListToVirtual(IN PXTBL_PAGE_MAPPING PageMap,
         if(ListEntry->Blink == ListHead)
         {
             /* Find virtual address of list head */
-            ListEntry->Blink = BlGetVirtualAddress(PageMap, ListEntry->Blink);
+            ListEntry->Blink = (PLIST_ENTRY)GetVirtualAddress(PageMap, ListEntry->Blink);
         }
         else
         {
             /* Convert list entry */
-            ListEntry->Blink = BlPhysicalAddressToVirtual(ListEntry->Blink, (PVOID)PhysicalBase, VirtualBase);
+            ListEntry->Blink = (PLIST_ENTRY)PhysicalAddressToVirtual(ListEntry->Blink, (PVOID)PhysicalBase, VirtualBase);
         }
         if(ListEntry->Flink == ListHead)
         {
@@ -677,7 +730,7 @@ BlPhysicalListToVirtual(IN PXTBL_PAGE_MAPPING PageMap,
         else
         {
             /* Convert list entry */
-            ListEntry->Flink = BlPhysicalAddressToVirtual(ListEntry->Flink, (PVOID)PhysicalBase, VirtualBase);
+            ListEntry->Flink = (PLIST_ENTRY)PhysicalAddressToVirtual(ListEntry->Flink, (PVOID)PhysicalBase, VirtualBase);
         }
 
         /* Get to the next element*/
@@ -685,128 +738,8 @@ BlPhysicalListToVirtual(IN PXTBL_PAGE_MAPPING PageMap,
     }
 
     /* Convert list head */
-    ListHead->Blink = BlPhysicalAddressToVirtual(ListHead->Blink, (PVOID)PhysicalBase, VirtualBase);
+    ListHead->Blink = (PLIST_ENTRY)PhysicalAddressToVirtual(ListHead->Blink, (PVOID)PhysicalBase, VirtualBase);
-    ListHead->Flink = BlPhysicalAddressToVirtual(ListHead->Flink, (PVOID)PhysicalBase, VirtualBase);
+    ListHead->Flink = (PLIST_ENTRY)PhysicalAddressToVirtual(ListHead->Flink, (PVOID)PhysicalBase, VirtualBase);
-
-    /* Return success */
-    return STATUS_EFI_SUCCESS;
-}
-
-/**
- * Converts EFI memory type to XTLDR memory type.
- *
- * @param EfiMemoryType
- *        Specifies EFI memory type.
- *
- * @return This routine returns a mapped XTLDR memory type.
- *
- * @since XT 1.0
- */
-XTCDECL
-LONG
-BlpGetLoaderMemoryType(IN EFI_MEMORY_TYPE EfiMemoryType)
-{
-    LOADER_MEMORY_TYPE MemoryType;
-
-    /* Check EFI memory type and convert to XTLDR memory type */
-    switch(EfiMemoryType)
-    {
-        case EfiACPIMemoryNVS:
-        case EfiACPIReclaimMemory:
-        case EfiPalCode:
-        case EfiReservedMemoryType:
-            MemoryType = LoaderSpecialMemory;
-            break;
-        case EfiRuntimeServicesCode:
-        case EfiRuntimeServicesData:
-        case EfiMemoryMappedIO:
-        case EfiMemoryMappedIOPortSpace:
-            MemoryType = LoaderFirmwarePermanent;
-            break;
-        case EfiBootServicesData:
-        case EfiLoaderCode:
-        case EfiLoaderData:
-            MemoryType = LoaderFirmwareTemporary;
-            break;
-        case EfiUnusableMemory:
-            MemoryType = LoaderBad;
-            break;
-        default:
-            MemoryType = LoaderFree;
-            break;
-    }
-
-    /* Return XTLDR memory type */
-    return MemoryType;
-}
-
-/**
- * Returns next level of the Page Table.
- *
- * @param PageMap
- *        Supplies a pointer to the page mapping structure.
- *
- * @param PageTable
- *        Supplies a pointer to the current Page Table.
- *
- * @param Entry
- *        Supplies an index of the current Page Table entry.
- *
- * @param NextPageTable
- *        Supplies a pointer to the memory area where the next Page Table level is returned.
- *
- * @return This routine returns a status code.
- *
- * @since XT 1.0
- */
-XTCDECL
-EFI_STATUS
-BlpGetNextPageTable(IN PXTBL_PAGE_MAPPING PageMap,
-                    IN PHARDWARE_PTE PageTable,
-                    IN SIZE_T Entry,
-                    OUT PHARDWARE_PTE *NextPageTable)
-{
-    EFI_PHYSICAL_ADDRESS Address;
-    ULONGLONG PmlPointer;
-    EFI_STATUS Status;
-
-    /* Check if this is a valid table */
-    if(PageTable[Entry].Valid)
-    {
-        /* Get PML pointer */
-        PmlPointer = PageTable[Entry].PageFrameNumber;
-        PmlPointer <<= EFI_PAGE_SHIFT;
-    }
-    else
-    {
-        /* Allocate pages for new PML entry */
-        Status = BlAllocateMemoryPages(1, &Address);
-        if(Status != STATUS_EFI_SUCCESS)
-        {
-            /* Memory allocation failure */
-            return Status;
-        }
-
-        /* Add new memory mapping */
-        Status = BlMapVirtualMemory(PageMap, NULL, (PVOID)(UINT_PTR)Address, 1, LoaderMemoryData);
-        if(Status != STATUS_EFI_SUCCESS)
-        {
-            /* Memory mapping failure */
-            return Status;
-        }
-
-        /* Fill allocated memory with zeros */
-        RtlZeroMemory((PVOID)(ULONGLONG)Address, EFI_PAGE_SIZE);
-
-        /* Set paging entry settings */
-        PageTable[Entry].PageFrameNumber = Address / EFI_PAGE_SIZE;
-        PageTable[Entry].Valid = 1;
-        PageTable[Entry].Writable = 1;
-        PmlPointer = (ULONGLONG)Address;
-    }
-
-    /* Set next Page Map Level (PML) */
-    *NextPageTable = (PHARDWARE_PTE)(ULONGLONG)PmlPointer;
 
     /* Return success */
     return STATUS_EFI_SUCCESS;

boot/xtldr/modules/acpi/CMakeLists.txt

@@ -8,8 +8,8 @@ include_directories(
 
 # Specify list of source code files
 list(APPEND XTLDR_ACPI_SOURCE
-    ${XTLDR_ACPI_SOURCE_DIR}/acpi.c
+    ${XTLDR_ACPI_SOURCE_DIR}/acpi.cc
-    ${XTLDR_ACPI_SOURCE_DIR}/globals.c)
+    ${XTLDR_ACPI_SOURCE_DIR}/data.cc)
 
 # Link module executable
 add_executable(acpi ${XTLDR_ACPI_SOURCE})

boot/xtldr/modules/acpi/acpi.cc

@@ -1,20 +1,21 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/acpi/acpi.c
+ * FILE:            xtldr/modules/acpi/acpi.cc
  * DESCRIPTION:     XTLDR ACPI Support Module
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <acpi.h>
+#include <acpi.hh>
 
 
-/* Dummy module information */
+/* ACPI module information */
 MODULE_AUTHOR(L"Rafal Kupiec <belliash@codingworkshop.eu.org>");
 MODULE_DESCRIPTION(L"ACPI support");
 MODULE_LICENSE(L"GPLv3");
 MODULE_VERSION(L"0.1");
 
+
 /**
  * Attempts to get XSDP. If it is not found or checksum mismatch, it will try to get RSDP instead.
  *
@@ -27,12 +28,12 @@ MODULE_VERSION(L"0.1");
  */
 XTCDECL
 EFI_STATUS
-AcGetAcpiDescriptionPointer(OUT PVOID *AcpiTable)
+Acpi::GetAcpiDescriptionPointer(OUT PVOID *AcpiTable)
 {
     PVOID Rsdp;
 
     /* Try to get XSDP (ACPI 2.0) from system configuration tables */
-    if(AcGetXsdpTable(&Rsdp) == STATUS_EFI_SUCCESS)
+    if(GetXsdpTable(&Rsdp) == STATUS_EFI_SUCCESS)
     {
         /* XSDP found, return success */
         *AcpiTable = Rsdp;
@@ -40,7 +41,7 @@ AcGetAcpiDescriptionPointer(OUT PVOID *AcpiTable)
     }
 
     /* Try to get RSDP (ACPI 1.0) from system configuration tables */
-    if(AcGetRsdpTable(&Rsdp) == STATUS_EFI_SUCCESS)
+    if(GetRsdpTable(&Rsdp) == STATUS_EFI_SUCCESS)
     {
         /* RSDP found, return success */
         *AcpiTable = Rsdp;
@@ -61,7 +62,7 @@ AcGetAcpiDescriptionPointer(OUT PVOID *AcpiTable)
  *        Supplies a pointer to the table to start searching from.
  *
  * @param AcpiTable
- *        Supplies a pointer to memory area where ACPI table address will be stored, or NULL if not found.
+ *        Supplies a pointer to memory area where ACPI table address will be stored, or NULLPTR if not found.
  *
  * @return This routine returns a status code.
  *
@@ -69,7 +70,7 @@ AcGetAcpiDescriptionPointer(OUT PVOID *AcpiTable)
  */
 XTCDECL
 EFI_STATUS
-AcGetAcpiTable(IN CONST UINT Signature,
+Acpi::GetAcpiTable(IN CONST UINT Signature,
                    IN PVOID PreviousTable,
                    OUT PVOID *AcpiTable)
 {
@@ -81,11 +82,11 @@ AcGetAcpiTable(IN CONST UINT Signature,
     PACPI_RSDT Rsdt;
     BOOLEAN Xsdp;
 
-    /* Return NULL address by default if requested table not found */
+    /* Return NULLPTR by default if requested table not found */
-    *AcpiTable = NULL;
+    *AcpiTable = NULLPTR;
 
     /* Get Root System Description Table Pointer */
-    Status = AcGetAcpiDescriptionPointer((PVOID)&Rsdp);
+    Status = GetAcpiDescriptionPointer((PVOID*)&Rsdp);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* ACPI tables not found, return error */
@@ -127,13 +128,13 @@ AcGetAcpiTable(IN CONST UINT Signature,
         }
 
         /* Check if previous table provided */
-        if(PreviousTable != NULL)
+        if(PreviousTable != NULLPTR)
         {
             /* Check if this is a table previously found */
             if(TableHeader == (PVOID)PreviousTable)
             {
                 /* Unset previous table */
-                PreviousTable = NULL;
+                PreviousTable = NULLPTR;
             }
 
             /* Skip to next ACPI table */
@@ -159,7 +160,7 @@ AcGetAcpiTable(IN CONST UINT Signature,
     if(TableHeader->Signature != ACPI_FADT_SIGNATURE || TableHeader->Revision > 2)
     {
         /* Validate table checksum */
-        if(!AcpValidateAcpiTable(TableHeader, TableHeader->Length))
+        if(!ValidateAcpiTable(TableHeader, TableHeader->Length))
         {
             /* Checksum mismatch, return error */
             return STATUS_EFI_CRC_ERROR;
@@ -183,28 +184,26 @@ AcGetAcpiTable(IN CONST UINT Signature,
  */
 XTCDECL
 EFI_STATUS
-AcGetApicBase(OUT PVOID *ApicBase)
+Acpi::GetApicBase(OUT PVOID *ApicBase)
 {
-    PCPUID_REGISTERS CpuRegisters = NULL;
+    CPUID_REGISTERS CpuRegisters;
 
-    /* Get CPU features list */
+    /* Prepare CPUID registers to query for APIC support */
-    CpuRegisters->Leaf = CPUID_GET_CPU_FEATURES;
+    XtLdrProtocol->Memory.ZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
-    CpuRegisters->SubLeaf = 0;
+    CpuRegisters.Leaf = CPUID_GET_STANDARD1_FEATURES;
-    CpuRegisters->Eax = 0;
+
-    CpuRegisters->Ebx = 0;
+    /* Query CPUID */
-    CpuRegisters->Ecx = 0;
+    XtLdrProtocol->Cpu.CpuId(&CpuRegisters);
-    CpuRegisters->Edx = 0;
-    ArCpuId(CpuRegisters);
 
     /* Check if APIC present */
-    if((CpuRegisters->Edx & CPUID_FEATURES_EDX_APIC) == 0)
+    if((CpuRegisters.Edx & CPUID_FEATURES_EDX_APIC) == 0)
     {
         /* APIC is not supported by the CPU */
         return STATUS_EFI_UNSUPPORTED;
     }
 
     /* Get APIC base address */
-    *ApicBase = (PVOID)((UINT_PTR)ArReadModelSpecificRegister(0x1B) & 0xFFFFF000);
+    *ApicBase = (PVOID)((UINT_PTR)XtLdrProtocol->Cpu.ReadModelSpecificRegister(0x1B) & 0xFFFFF000);
 
     /* Return success */
     return STATUS_EFI_SUCCESS;
@@ -222,18 +221,18 @@ AcGetApicBase(OUT PVOID *ApicBase)
  */
 XTCDECL
 EFI_STATUS
-AcGetRsdpTable(OUT PVOID *AcpiTable)
+Acpi::GetRsdpTable(OUT PVOID *AcpiTable)
 {
     EFI_GUID AcpiGuid = EFI_CONFIG_TABLE_ACPI_TABLE_GUID;
     EFI_STATUS Status;
     PVOID RsdpTable;
 
     /* Get RSDP (ACPI 1.0) table from system configuration tables */
-    Status = XtLdrProtocol->Util.GetConfigurationTable(&AcpiGuid, &RsdpTable);
+    Status = XtLdrProtocol->Utils.GetConfigurationTable(&AcpiGuid, &RsdpTable);
-    if(Status != STATUS_EFI_SUCCESS || !AcpValidateAcpiTable(RsdpTable, 20))
+    if(Status != STATUS_EFI_SUCCESS || !ValidateAcpiTable(RsdpTable, 20))
     {
         /* RSDP not found or checksum mismatch */
-        *AcpiTable = NULL;
+        *AcpiTable = NULLPTR;
         return STATUS_EFI_NOT_FOUND;
     }
 
@@ -254,18 +253,18 @@ AcGetRsdpTable(OUT PVOID *AcpiTable)
  */
 XTCDECL
 EFI_STATUS
-AcGetSMBiosTable(OUT PVOID *SmBiosTable)
+Acpi::GetSMBiosTable(OUT PVOID *SmBiosTable)
 {
     EFI_GUID SmBiosGuid = EFI_CONFIG_TABLE_SMBIOS_TABLE_GUID;
     PSMBIOS_TABLE_HEADER SmBios;
     EFI_STATUS Status;
 
     /* Get SMBIOS table from system configuration tables */
-    Status = XtLdrProtocol->Util.GetConfigurationTable(&SmBiosGuid, (PVOID)&SmBios);
+    Status = XtLdrProtocol->Utils.GetConfigurationTable(&SmBiosGuid, (PVOID*)&SmBios);
-    if(Status != STATUS_EFI_SUCCESS || !AcpValidateAcpiTable(SmBios, SmBios->Length))
+    if(Status != STATUS_EFI_SUCCESS || !ValidateAcpiTable(SmBios, SmBios->Length))
     {
         /* SMBIOS not found or checksum mismatch */
-        *SmBiosTable = NULL;
+        *SmBiosTable = NULLPTR;
         return STATUS_EFI_NOT_FOUND;
     }
 
@@ -286,18 +285,18 @@ AcGetSMBiosTable(OUT PVOID *SmBiosTable)
  */
 XTCDECL
 EFI_STATUS
-AcGetSMBios3Table(OUT PVOID *SmBiosTable)
+Acpi::GetSMBios3Table(OUT PVOID *SmBiosTable)
 {
     EFI_GUID SmBios3Guid = EFI_CONFIG_TABLE_SMBIOS3_TABLE_GUID;
     PSMBIOS3_TABLE_HEADER SmBios;
     EFI_STATUS Status;
 
     /* Get SMBIOS3 table from system configuration tables */
-    Status = XtLdrProtocol->Util.GetConfigurationTable(&SmBios3Guid, (PVOID)&SmBios);
+    Status = XtLdrProtocol->Utils.GetConfigurationTable(&SmBios3Guid, (PVOID*)&SmBios);
-    if(Status != STATUS_EFI_SUCCESS || !AcpValidateAcpiTable(SmBios, SmBios->Length))
+    if(Status != STATUS_EFI_SUCCESS || !ValidateAcpiTable(SmBios, SmBios->Length))
     {
         /* SMBIOS3 not found or checksum mismatch */
-        *SmBiosTable = NULL;
+        *SmBiosTable = NULLPTR;
         return STATUS_EFI_NOT_FOUND;
     }
 
@@ -318,18 +317,18 @@ AcGetSMBios3Table(OUT PVOID *SmBiosTable)
  */
 XTCDECL
 EFI_STATUS
-AcGetXsdpTable(OUT PVOID *AcpiTable)
+Acpi::GetXsdpTable(OUT PVOID *AcpiTable)
 {
     EFI_GUID AcpiGuid = EFI_CONFIG_TABLE_ACPI20_TABLE_GUID;
     EFI_STATUS Status;
     PVOID XsdpTable;
 
     /* Get XSDP (ACPI 2.0) from system configuration tables */
-    Status = XtLdrProtocol->Util.GetConfigurationTable(&AcpiGuid, &XsdpTable);
+    Status = XtLdrProtocol->Utils.GetConfigurationTable(&AcpiGuid, &XsdpTable);
-    if(Status != STATUS_EFI_SUCCESS || !AcpValidateAcpiTable(XsdpTable, 36))
+    if(Status != STATUS_EFI_SUCCESS || !ValidateAcpiTable(XsdpTable, 36))
     {
         /* XSDP not found or checksum mismatch */
-        *AcpiTable = NULL;
+        *AcpiTable = NULLPTR;
         return STATUS_EFI_NOT_FOUND;
     }
 
@@ -338,6 +337,48 @@ AcGetXsdpTable(OUT PVOID *AcpiTable)
     return STATUS_EFI_SUCCESS;
 }
 
+/**
+ * Initializes ACPI module by opening XTLDR protocol and installing ACPI protocol.
+ *
+ * @param ImageHandle
+ *        Firmware-allocated handle that identifies the image.
+ *
+ * @param SystemTable
+ *        Provides the EFI system table.
+ *
+ * @return This routine returns status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Acpi::InitializeModule(IN EFI_HANDLE ImageHandle,
+                       IN PEFI_SYSTEM_TABLE SystemTable)
+{
+    EFI_GUID Guid = XT_ACPI_PROTOCOL_GUID;
+    EFI_STATUS Status;
+
+    /* Open the XTLDR protocol */
+    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to open the protocol, return error */
+        return STATUS_EFI_PROTOCOL_ERROR;
+    }
+
+    /* Set routines available via ACPI protocol */
+    AcpiProtocol.GetAcpiDescriptionPointer = GetAcpiDescriptionPointer;
+    AcpiProtocol.GetAcpiTable = GetAcpiTable;
+    AcpiProtocol.GetApicBase = GetApicBase;
+    AcpiProtocol.GetRsdpTable = GetRsdpTable;
+    AcpiProtocol.GetSMBiosTable = GetSMBiosTable;
+    AcpiProtocol.GetSMBios3Table = GetSMBios3Table;
+    AcpiProtocol.GetXsdpTable = GetXsdpTable;
+
+    /* Install ACPI protocol */
+    return XtLdrProtocol->Protocol.Install(&AcpiProtocol, &Guid);
+}
+
 /**
  * Validates given ACPI table by calculating its checksum.
  *
@@ -353,7 +394,7 @@ AcGetXsdpTable(OUT PVOID *AcpiTable)
  */
 XTCDECL
 BOOLEAN
-AcpValidateAcpiTable(IN PVOID Buffer,
+Acpi::ValidateAcpiTable(IN PVOID Buffer,
                         IN UINT_PTR Size)
 {
     PUCHAR Pointer;
@@ -361,7 +402,7 @@ AcpValidateAcpiTable(IN PVOID Buffer,
 
     /* Initialize variables */
     Sum = 0;
-    Pointer = Buffer;
+    Pointer = (PUCHAR)Buffer;
 
     /* Calculate checksum of given table */
     while(Size != 0)
@@ -393,26 +434,6 @@ EFI_STATUS
 XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
                 IN PEFI_SYSTEM_TABLE SystemTable)
 {
-    EFI_GUID Guid = XT_ACPI_PROTOCOL_GUID;
+    /* Initialize ACPI module */
-    EFI_STATUS Status;
+    return Acpi::InitializeModule(ImageHandle, SystemTable);
-
-    /* Open the XTLDR protocol */
-    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to open the protocol, return error */
-        return STATUS_EFI_PROTOCOL_ERROR;
-    }
-
-    /* Set routines available via ACPI protocol */
-    AcpAcpiProtocol.GetAcpiDescriptionPointer = AcGetAcpiDescriptionPointer;
-    AcpAcpiProtocol.GetAcpiTable = AcGetAcpiTable;
-    AcpAcpiProtocol.GetApicBase = AcGetApicBase;
-    AcpAcpiProtocol.GetRsdpTable = AcGetRsdpTable;
-    AcpAcpiProtocol.GetSMBiosTable = AcGetSMBiosTable;
-    AcpAcpiProtocol.GetSMBios3Table = AcGetSMBios3Table;
-    AcpAcpiProtocol.GetXsdpTable = AcGetXsdpTable;
-
-    /* Install ACPI protocol */
-    return XtLdrProtocol->Protocol.Install(&AcpAcpiProtocol, &Guid);
 }

boot/xtldr/modules/acpi/data.cc

@@ -1,16 +1,16 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/acpi/globals.c
+ * FILE:            xtldr/modules/acpi/data.cc
- * DESCRIPTION:     ACPI module global variables
+ * DESCRIPTION:     ACPI module global and static data
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <xtblapi.h>
+#include <acpi.hh>
 
 
 /* ACPI Protocol */
-XTBL_ACPI_PROTOCOL AcpAcpiProtocol;
+XTBL_ACPI_PROTOCOL Acpi::AcpiProtocol;
 
 /* XTLDR protocol handler */
-PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+PXTBL_LOADER_PROTOCOL Acpi::XtLdrProtocol;

boot/xtldr/modules/acpi/includes/acpi.hh

@@ -0,0 +1,40 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/acpi/includes/acpi.hh
+ * DESCRIPTION:     XTLDR ACPI module header file
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#ifndef __XTLDR_ACPI_ACPI_HH
+#define __XTLDR_ACPI_ACPI_HH
+
+#include <xtblapi.h>
+
+
+/* ACPI module for XTLDR */
+class Acpi
+{
+    private:
+        STATIC XTBL_ACPI_PROTOCOL AcpiProtocol;
+        STATIC PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+
+    public:
+        STATIC XTCDECL EFI_STATUS GetAcpiDescriptionPointer(OUT PVOID *AcpiTable);
+        STATIC XTCDECL EFI_STATUS GetAcpiTable(IN CONST UINT Signature,
+                                               IN PVOID PreviousTable,
+                                               OUT PVOID *AcpiTable);
+        STATIC XTCDECL EFI_STATUS GetApicBase(OUT PVOID *ApicBase);
+        STATIC XTCDECL EFI_STATUS GetRsdpTable(OUT PVOID *AcpiTable);
+        STATIC XTCDECL EFI_STATUS GetSMBiosTable(OUT PVOID *SmBiosTable);
+        STATIC XTCDECL EFI_STATUS GetSMBios3Table(OUT PVOID *SmBiosTable);
+        STATIC XTCDECL EFI_STATUS GetXsdpTable(OUT PVOID *AcpiTable);
+        STATIC XTCDECL EFI_STATUS InitializeModule(IN EFI_HANDLE ImageHandle,
+                                                   IN PEFI_SYSTEM_TABLE SystemTable);
+
+    private:
+        STATIC XTCDECL BOOLEAN ValidateAcpiTable(IN PVOID Buffer,
+                                                 IN UINT_PTR Size);
+};
+
+#endif /* __XTLDR_ACPI_ACPI_HH */

boot/xtldr/modules/beep/CMakeLists.txt

@@ -8,8 +8,8 @@ include_directories(
 
 # Specify list of source code files
 list(APPEND XTLDR_BEEP_SOURCE
-    ${XTLDR_BEEP_SOURCE_DIR}/beep.c
+    ${XTLDR_BEEP_SOURCE_DIR}/beep.cc
-    ${XTLDR_BEEP_SOURCE_DIR}/globals.c)
+    ${XTLDR_BEEP_SOURCE_DIR}/data.cc)
 
 # Link module executable
 add_executable(beep ${XTLDR_BEEP_SOURCE})

boot/xtldr/modules/beep/beep.cc

@@ -1,12 +1,12 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/beep/beep.c
+ * FILE:            xtldr/modules/beep/beep.cc
  * DESCRIPTION:     XTLDR Beep Module
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <beep.h>
+#include <beep.hh>
 
 
 /* Beep module information */
@@ -15,6 +15,7 @@ MODULE_DESCRIPTION(L"Plays a GRUB compatible tune via PC speaker");
 MODULE_LICENSE(L"GPLv3");
 MODULE_VERSION(L"0.1");
 
+
 /**
  * Disables the PC speaker.
  *
@@ -24,13 +25,13 @@ MODULE_VERSION(L"0.1");
  */
 XTCDECL
 VOID
-BpDisableToneBeep()
+Beep::DisableToneBeep()
 {
     UCHAR Status;
 
     /* Stop the PC speaker */
-    Status = HlIoPortInByte(0x61);
+    Status = XtLdrProtocol->IoPort.Read8(0x61);
-    HlIoPortOutByte(0x61, Status & 0xFC);
+    XtLdrProtocol->IoPort.Write8(0x61, Status & 0xFC);
 }
 
 /**
@@ -45,7 +46,7 @@ BpDisableToneBeep()
  */
 XTCDECL
 VOID
-BpEnableToneBeep(IN UINT Pitch)
+Beep::EnableToneBeep(IN UINT Pitch)
 {
     UINT Counter;
     UCHAR Status;
@@ -62,14 +63,51 @@ BpEnableToneBeep(IN UINT Pitch)
 
     /* Set the desired frequency of the PIT clock */
     Counter = 0x1234DD / Pitch;
-    HlIoPortOutByte(0x43, 0xB6);
+    XtLdrProtocol->IoPort.Write8(0x43, 0xB6);
-    HlIoPortOutByte(0x43, 0xB6);
+    XtLdrProtocol->IoPort.Write8(0x43, 0xB6);
-    HlIoPortOutByte(0x42, (UCHAR) Counter & 0xFF);
+    XtLdrProtocol->IoPort.Write8(0x42, (UCHAR) Counter & 0xFF);
-    HlIoPortOutByte(0x42, (UCHAR) (Counter >> 8) & 0xFF);
+    XtLdrProtocol->IoPort.Write8(0x42, (UCHAR) (Counter >> 8) & 0xFF);
 
     /* Start the PC speaker */
-    Status = HlIoPortInByte(0x61);
+    Status = XtLdrProtocol->IoPort.Read8(0x61);
-    HlIoPortOutByte(0x61, Status | 0x03);
+    XtLdrProtocol->IoPort.Write8(0x61, Status | 0x03);
+}
+
+/**
+ * Initializes BEEP module by opening XTLDR protocol and playing the tune.
+ *
+ * @param ImageHandle
+ *        Firmware-allocated handle that identifies the image.
+ *
+ * @param SystemTable
+ *        Provides the EFI system table.
+ *
+ * @return This routine returns status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Beep::InitializeModule(IN EFI_HANDLE ImageHandle,
+                       IN PEFI_SYSTEM_TABLE SystemTable)
+{
+    EFI_STATUS Status;
+    PWCHAR Tune;
+
+    /* Open the XTLDR protocol */
+    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to open the protocol, return error */
+        return STATUS_EFI_PROTOCOL_ERROR;
+    }
+
+    /* Play the tune set in the configuration */
+    XtLdrProtocol->Config.GetValue(L"TUNE", &Tune);
+    PlayTune(Tune);
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
 }
 
 /**
@@ -84,7 +122,7 @@ BpEnableToneBeep(IN UINT Pitch)
  */
 XTCDECL
 VOID
-BpPlayTune(IN PWCHAR Arguments)
+Beep::PlayTune(IN PWCHAR Arguments)
 {
     LONG Pitch, Duration, Tempo;
     PWCHAR Argument, LastArgument;
@@ -95,41 +133,41 @@ BpPlayTune(IN PWCHAR Arguments)
     Tempo = -1;
 
     /* Tokenize provided list of arguments */
-    Argument = RtlTokenizeWideString(Arguments, L" ", &LastArgument);
+    Argument = XtLdrProtocol->WideString.Tokenize(Arguments, L" ", &LastArgument);
 
     /* Iterate over all arguments */
-    while(Argument != NULL)
+    while(Argument != NULLPTR)
     {
         /* Check if tempo, pitch and duration are set */
         if(Tempo < 0)
         {
             /* Set the tempo */
-            Tempo = BpWideStringToNumber(Argument);
+            Tempo = WideStringToNumber(Argument);
         }
         else if(Pitch < 0)
         {
             /* Set the pitch */
-            Pitch = BpWideStringToNumber(Argument);
+            Pitch = WideStringToNumber(Argument);
         }
         else
         {
             /* Set the duration */
-            Duration = BpWideStringToNumber(Argument);
+            Duration = WideStringToNumber(Argument);
 
             /* Check pitch value */
             if(Pitch > 0)
             {
                 /* Emit the beep tone */
-                BpEnableToneBeep(Pitch);
+                EnableToneBeep(Pitch);
             }
             else
             {
                 /* Stop emitting beep tone */
-                BpDisableToneBeep();
+                DisableToneBeep();
             }
 
             /* Wait for duration time */
-            XtLdrProtocol->Util.SleepExecution(60000 * Duration / Tempo);
+            XtLdrProtocol->Utils.SleepExecution(60000 * Duration / Tempo);
 
             /* Reset pitch and duration */
             Pitch = -1;
@@ -137,11 +175,11 @@ BpPlayTune(IN PWCHAR Arguments)
         }
 
         /* Get next argument */
-        Argument = RtlTokenizeWideString(NULL, L" ", &LastArgument);
+        Argument = XtLdrProtocol->WideString.Tokenize(NULLPTR, L" ", &LastArgument);
     }
 
     /* Stop emitting beep tone */
-    BpDisableToneBeep();
+    DisableToneBeep();
 }
 
 /**
@@ -156,7 +194,7 @@ BpPlayTune(IN PWCHAR Arguments)
  */
 XTCDECL
 UINT
-BpWideStringToNumber(IN PWCHAR String)
+Beep::WideStringToNumber(IN PWCHAR String)
 {
     ULONG Number = 0;
 
@@ -195,19 +233,6 @@ EFI_STATUS
 XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
                 IN PEFI_SYSTEM_TABLE SystemTable)
 {
-    EFI_STATUS Status;
+    /* Initialize BEEP module */
-
+    return Beep::InitializeModule(ImageHandle, SystemTable);
-    /* Open the XTLDR protocol */
-    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to open the protocol, return error */
-        return STATUS_EFI_PROTOCOL_ERROR;
-    }
-
-    /* Play the tune set in the configuration */
-    BpPlayTune(XtLdrProtocol->Config.GetValue(L"TUNE"));
-
-    /* Return success */
-    return STATUS_EFI_SUCCESS;
 }

boot/xtldr/modules/beep/data.cc

@@ -1,13 +1,13 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/beep/globals.c
+ * FILE:            xtldr/modules/beep/data.cc
- * DESCRIPTION:     Beep module global variables
+ * DESCRIPTION:     BEEP module global and static data
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <xtblapi.h>
+#include <beep.hh>
 
 
 /* XTLDR protocol handler */
-PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+PXTBL_LOADER_PROTOCOL Beep::XtLdrProtocol;

boot/xtldr/modules/beep/includes/beep.hh

@@ -0,0 +1,32 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/beep/includes/beep.hh
+ * DESCRIPTION:     XTLDR Beep Module header file
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#ifndef __XTLDR_BEEP_BEEP_HH
+#define __XTLDR_BEEP_BEEP_HH
+
+#include <xtblapi.h>
+
+
+/* BEEP module for XTLDR */
+class Beep
+{
+    private:
+        STATIC PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+
+    public:
+        STATIC XTCDECL EFI_STATUS InitializeModule(IN EFI_HANDLE ImageHandle,
+                                                   IN PEFI_SYSTEM_TABLE SystemTable);
+        STATIC XTCDECL VOID PlayTune(IN PWCHAR Arguments);
+
+    private:
+        STATIC XTCDECL VOID DisableToneBeep();
+        STATIC XTCDECL VOID EnableToneBeep(IN UINT Pitch);
+        STATIC XTCDECL UINT WideStringToNumber(IN PWCHAR String);
+};
+
+#endif /* __XTLDR_BEEP_BEEP_HH */

boot/xtldr/modules/chainldr/CMakeLists.txt

@@ -8,8 +8,8 @@ include_directories(
 
 # Specify list of source code files
 list(APPEND XTLDR_CHAINLDR_SOURCE
-    ${XTLDR_CHAINLDR_SOURCE_DIR}/chainldr.c
+    ${XTLDR_CHAINLDR_SOURCE_DIR}/chainldr.cc
-    ${XTLDR_CHAINLDR_SOURCE_DIR}/globals.c)
+    ${XTLDR_CHAINLDR_SOURCE_DIR}/data.cc)
 
 # Link module executable
 add_executable(chainldr ${XTLDR_CHAINLDR_SOURCE})

boot/xtldr/modules/chainldr/chainldr.cc

@@ -1,12 +1,12 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/chainldr/chainldr.c
+ * FILE:            xtldr/modules/chainldr/chainldr.cc
  * DESCRIPTION:     XTLDR Chain Loader
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <chainldr.h>
+#include <chainldr.hh>
 
 
 /* ChainLoader module information */
@@ -15,6 +15,7 @@ MODULE_DESCRIPTION(L"XTLDR Chain Loader");
 MODULE_LICENSE(L"GPLv3");
 MODULE_VERSION(L"0.1");
 
+
 /**
  * Chainloads another boot loader.
  *
@@ -27,7 +28,7 @@ MODULE_VERSION(L"0.1");
  */
 XTCDECL
 EFI_STATUS
-ChBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
+ChainLoader::BootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
 {
     EFI_GUID LIPGuid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
     EFI_MEMMAP_DEVICE_PATH MemoryDevicePath[2];
@@ -39,7 +40,7 @@ ChBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     PVOID LoaderData;
 
     /* Check if image file is provided */
-    if(Parameters->KernelFile == NULL)
+    if(Parameters->KernelFile == NULLPTR)
     {
         /* No image filename provided, return error code */
         XtLdrProtocol->Debug.Print(L"ERROR: No EFI image filename provided\n");
@@ -47,7 +48,7 @@ ChBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     }
 
     /* Open EFI volume */
-    Status = XtLdrProtocol->Disk.OpenVolume(NULL, &DiskHandle, &FsHandle);
+    Status = XtLdrProtocol->Disk.OpenVolume(Parameters->DevicePath, &DiskHandle, &FsHandle);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to open a volume, return error code */
@@ -66,14 +67,14 @@ ChBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
         XtLdrProtocol->Debug.Print(L"ERROR: Unable to open system boot directory (Status Code: 0x%zX)\n", Status);
 
         /* Close volume and return error code */
-        XtLdrProtocol->Disk.CloseVolume(DiskHandle);
+        XtLdrProtocol->Disk.CloseVolume(&DiskHandle);
         return Status;
     }
 
     /* Read EFI image file from disk and close both directory and EFI volume */
     Status = XtLdrProtocol->Disk.ReadFile(BootDir, Parameters->KernelFile, &LoaderData, &LoaderSize);
     BootDir->Close(BootDir);
-    XtLdrProtocol->Disk.CloseVolume(DiskHandle);
+    XtLdrProtocol->Disk.CloseVolume(&DiskHandle);
 
     /* Setup device path for EFI image */
     MemoryDevicePath[0].Header.Length[0] = sizeof(EFI_MEMMAP_DEVICE_PATH);
@@ -89,7 +90,7 @@ ChBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     MemoryDevicePath[1].Header.SubType = EFI_END_ENTIRE_DP;
 
     /* Load EFI image */
-    Status = XtLdrProtocol->Util.LoadEfiImage((PEFI_DEVICE_PATH_PROTOCOL)MemoryDevicePath,
+    Status = XtLdrProtocol->Utils.LoadEfiImage((PEFI_DEVICE_PATH_PROTOCOL)MemoryDevicePath,
                                                LoaderData, LoaderSize, &LoaderHandle);
     if(Status != STATUS_EFI_SUCCESS)
     {
@@ -112,7 +113,7 @@ ChBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     if(Parameters->Parameters)
     {
         /* Pass arguments to chainloaded image */
-        LoadedImage->LoadOptionsSize = RtlWideStringLength(Parameters->Parameters, 0) * sizeof(WCHAR);
+        LoadedImage->LoadOptionsSize = XtLdrProtocol->WideString.Length(Parameters->Parameters, 0) * sizeof(WCHAR);
         LoadedImage->LoadOptions = Parameters->Parameters;
     }
 
@@ -120,7 +121,46 @@ ChBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     LoadedImage->DeviceHandle = DiskHandle;
 
     /* Chainload EFI image */
-    return XtLdrProtocol->Util.StartEfiImage(LoaderHandle);
+    return XtLdrProtocol->Utils.StartEfiImage(LoaderHandle);
+}
+
+/**
+ * Initializes CHAINLDR module by opening XTLDR protocol and installing CHAINLOADER protocol.
+ *
+ * @param ImageHandle
+ *        Firmware-allocated handle that identifies the image.
+ *
+ * @param SystemTable
+ *        Provides the EFI system table.
+ *
+ * @return This routine returns status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+ChainLoader::InitializeModule(IN EFI_HANDLE ImageHandle,
+                              IN PEFI_SYSTEM_TABLE SystemTable)
+{
+    EFI_GUID Guid = XT_CHAIN_BOOT_PROTOCOL_GUID;
+    EFI_STATUS Status;
+
+    /* Open the XTLDR protocol */
+    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to open the protocol, return error */
+        return STATUS_EFI_PROTOCOL_ERROR;
+    }
+
+    /* Set routines available via ChainLoader boot protocol */
+    BootProtocol.BootSystem = BootSystem;
+
+    /* Register XTOS boot protocol */
+    XtLdrProtocol->Boot.RegisterProtocol(L"CHAINLOADER", &Guid);
+
+    /* Install XTOS protocol */
+    return XtLdrProtocol->Protocol.Install(&BootProtocol, &Guid);
 }
 
 /**
@@ -141,23 +181,6 @@ EFI_STATUS
 XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
                 IN PEFI_SYSTEM_TABLE SystemTable)
 {
-    EFI_GUID Guid = XT_CHAIN_BOOT_PROTOCOL_GUID;
+    /* Initialize CHAINLDR module */
-    EFI_STATUS Status;
+    return ChainLoader::InitializeModule(ImageHandle, SystemTable);
-
-    /* Open the XTLDR protocol */
-    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to open the protocol, return error */
-        return STATUS_EFI_PROTOCOL_ERROR;
-    }
-
-    /* Set routines available via ChainLoader boot protocol */
-    ChpBootProtocol.BootSystem = ChBootSystem;
-
-    /* Register XTOS boot protocol */
-    XtLdrProtocol->Boot.RegisterProtocol(L"CHAINLOADER", &Guid);
-
-    /* Install XTOS protocol */
-    return XtLdrProtocol->Protocol.Install(&ChpBootProtocol, &Guid);
 }

boot/xtldr/modules/chainldr/data.cc

@@ -1,16 +1,16 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/chainldr/globals.c
+ * FILE:            xtldr/modules/chainldr/data.cc
- * DESCRIPTION:     XTLDR Chain Loader global variables
+ * DESCRIPTION:     CHAINLDR module global and static data
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <xtblapi.h>
+#include <chainldr.hh>
 
 
 /* ChainLoader Boot Protocol */
-XTBL_BOOT_PROTOCOL ChpBootProtocol;
+XTBL_BOOT_PROTOCOL ChainLoader::BootProtocol;
 
 /* XTLDR protocol handler */
-PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+PXTBL_LOADER_PROTOCOL ChainLoader::XtLdrProtocol;

boot/xtldr/modules/chainldr/includes/chainldr.hh

@@ -0,0 +1,28 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/chainldr/includes/chainldr.hh
+ * DESCRIPTION:     XTLDR Chain Loader header file
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#ifndef __XTLDR_CHAINLDR_CHAINLDR_HH
+#define __XTLDR_CHAINLDR_CHAINLDR_HH
+
+#include <xtblapi.h>
+
+
+/* CHAINLDR module for XTLDR */
+class ChainLoader
+{
+    private:
+        STATIC XTBL_BOOT_PROTOCOL BootProtocol;
+        STATIC PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+
+    public:
+        STATIC XTCDECL EFI_STATUS BootSystem(IN PXTBL_BOOT_PARAMETERS Parameters);
+        STATIC XTCDECL EFI_STATUS InitializeModule(IN EFI_HANDLE ImageHandle,
+                                                   IN PEFI_SYSTEM_TABLE SystemTable);
+};
+
+#endif /* __XTLDR_CHAINLDR_CHAINLDR_HH */

boot/xtldr/modules/dummy/CMakeLists.txt

@@ -8,8 +8,8 @@ include_directories(
 
 # Specify list of source code files
 list(APPEND XTLDR_DUMMY_SOURCE
-    ${XTLDR_DUMMY_SOURCE_DIR}/dummy.c
+    ${XTLDR_DUMMY_SOURCE_DIR}/dummy.cc
-    ${XTLDR_DUMMY_SOURCE_DIR}/globals.c)
+    ${XTLDR_DUMMY_SOURCE_DIR}/data.cc)
 
 # Link module executable
 add_executable(dummy ${XTLDR_DUMMY_SOURCE})

boot/xtldr/modules/dummy/data.cc

@@ -1,16 +1,16 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/dummy/globals.c
+ * FILE:            xtldr/modules/dummy/data.cc
- * DESCRIPTION:     Dummy XTLDR module global variables
+ * DESCRIPTION:     Dummy XTLDR module global and static data
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <dummy.h>
+#include <dummy.hh>
 
 
-/* XTLDR protocol handler */
-PXTBL_LOADER_PROTOCOL XtLdrProtocol;
-
 /* Dummy Boot Protocol handler */
-XTBL_BOOT_PROTOCOL BlpDummyProtocol;
+XTBL_BOOT_PROTOCOL Dummy::DummyProtocol;
+
+/* XTLDR protocol handler */
+PXTBL_LOADER_PROTOCOL Dummy::XtLdrProtocol;

boot/xtldr/modules/dummy/dummy.cc

@@ -1,12 +1,12 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/dummy/dummy.c
+ * FILE:            xtldr/modules/dummy/dummy.cc
  * DESCRIPTION:     XTLDR Dummy Module
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <dummy.h>
+#include <dummy.hh>
 
 
 /* Dummy module information */
@@ -15,6 +15,7 @@ MODULE_DESCRIPTION(L"XTLDR Dummy Module");
 MODULE_LICENSE(L"GPLv3");
 MODULE_VERSION(L"0.1");
 
+
 /**
  * Stub boot routine.
  *
@@ -27,11 +28,50 @@ MODULE_VERSION(L"0.1");
  */
 XTCDECL
 EFI_STATUS
-DmBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
+Dummy::BootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
 {
     return STATUS_EFI_SUCCESS;
 }
 
+/**
+ * Initializes DUMMY module by opening XTLDR protocol and installing DUMMY protocol.
+ *
+ * @param ImageHandle
+ *        Firmware-allocated handle that identifies the image.
+ *
+ * @param SystemTable
+ *        Provides the EFI system table.
+ *
+ * @return This routine returns status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Dummy::InitializeModule(IN EFI_HANDLE ImageHandle,
+                        IN PEFI_SYSTEM_TABLE SystemTable)
+{
+    EFI_GUID DummyGuid = XT_DUMMY_BOOT_PROTOCOL_GUID;
+    EFI_STATUS Status;
+
+    /* Open the XTLDR protocol */
+    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to open the protocol, return error */
+        return STATUS_EFI_PROTOCOL_ERROR;
+    }
+
+    /* Set boot protocol routines */
+    DummyProtocol.BootSystem = BootSystem;
+
+    /* Register XTOS boot protocol */
+    XtLdrProtocol->Boot.RegisterProtocol(L"DUMMYOS", &DummyGuid);
+
+    /* Register DUMMY protocol as XTOS boot protocol */
+    return XtLdrProtocol->Protocol.Install(&DummyProtocol, &DummyGuid);
+}
+
 /**
  * This routine is the entry point of the XT EFI boot loader module.
  *
@@ -50,23 +90,6 @@ EFI_STATUS
 XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
                 IN PEFI_SYSTEM_TABLE SystemTable)
 {
-    EFI_GUID DummyGuid = XT_DUMMY_BOOT_PROTOCOL_GUID;
+    /* Initialize DUMMY module */
-    EFI_STATUS Status;
+    return Dummy::InitializeModule(ImageHandle, SystemTable);
-
-    /* Open the XTLDR protocol */
-    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to open the protocol, return error */
-        return STATUS_EFI_PROTOCOL_ERROR;
-    }
-
-    /* Set boot protocol routines */
-    BlpDummyProtocol.BootSystem = DmBootSystem;
-
-    /* Register XTOS boot protocol */
-    XtLdrProtocol->Boot.RegisterProtocol(L"DUMMYOS", &DummyGuid);
-
-    /* Register DUMMY protocol as XTOS boot protocol */
-    return XtLdrProtocol->Protocol.Install(&BlpDummyProtocol, &DummyGuid);
 }

boot/xtldr/modules/dummy/includes/dummy.hh

@@ -0,0 +1,28 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/dummy/includes/dummy.hh
+ * DESCRIPTION:     XTLDR Dummy Module header file
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#ifndef __XTLDR_DUMMY_DUMMY_HH
+#define __XTLDR_DUMMY_DUMMY_HH
+
+#include <xtblapi.h>
+
+
+/* DUMMY module for XTLDR */
+class Dummy
+{
+    private:
+        STATIC XTBL_BOOT_PROTOCOL DummyProtocol;
+        STATIC PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+
+    public:
+        STATIC EFI_STATUS BootSystem(IN PXTBL_BOOT_PARAMETERS Parameters);
+        STATIC EFI_STATUS InitializeModule(IN EFI_HANDLE ImageHandle,
+                                           IN PEFI_SYSTEM_TABLE SystemTable);
+};
+
+#endif/* __XTLDR_DUMMY_DUMMY_HH */

boot/xtldr/modules/framebuf/CMakeLists.txt

@@ -8,8 +8,8 @@ include_directories(
 
 # Specify list of source code files
 list(APPEND XTLDR_FRAMEBUF_SOURCE
-    ${XTLDR_FRAMEBUF_SOURCE_DIR}/framebuf.c
+    ${XTLDR_FRAMEBUF_SOURCE_DIR}/framebuf.cc
-    ${XTLDR_FRAMEBUF_SOURCE_DIR}/globals.c)
+    ${XTLDR_FRAMEBUF_SOURCE_DIR}/data.cc)
 
 # Link bootloader executable
 add_executable(framebuf ${XTLDR_FRAMEBUF_SOURCE})

boot/xtldr/modules/framebuf/data.cc

@@ -0,0 +1,19 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/framebuf/data.cc
+ * DESCRIPTION:     EFI framebuffer module global and static data
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <framebuf.hh>
+
+
+/* Framebuffer display information */
+XTBL_FRAMEBUFFER_INFORMATION FrameBuffer::DisplayInfo;
+
+/* Framebuffer protocol handler */
+XTBL_FRAMEBUFFER_PROTOCOL FrameBuffer::FbProtocol;
+
+/* XTLDR protocol handler */
+PXTBL_LOADER_PROTOCOL FrameBuffer::XtLdrProtocol;

boot/xtldr/modules/framebuf/includes/framebuf.hh

@@ -0,0 +1,44 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/framebuf/includes/framebuf.hh
+ * DESCRIPTION:     EFI Framebuffer support module header file
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#ifndef __XTLDR_MODULES_FRAMEBUF_HH
+#define __XTLDR_MODULES_FRAMEBUF_HH
+
+#include <xtblapi.h>
+
+
+class FrameBuffer
+{
+    private:
+        STATIC XTBL_FRAMEBUFFER_INFORMATION DisplayInfo;
+        STATIC XTBL_FRAMEBUFFER_PROTOCOL FbProtocol;
+        STATIC PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+
+    public:
+        STATIC XTCDECL EFI_STATUS GetDisplayDriver(OUT PEFI_GRAPHICS_PROTOCOL Protocol);
+        STATIC XTCDECL EFI_STATUS GetDisplayInformation(OUT PEFI_PHYSICAL_ADDRESS FrameBufferBase,
+                                                        OUT PULONG_PTR FrameBufferSize,
+                                                        OUT PXTBL_FRAMEBUFFER_MODE_INFORMATION ModeInfo);
+        STATIC XTCDECL EFI_STATUS GetPreferredScreenResolution(OUT PUINT PreferredWidth,
+                                                               OUT PUINT PreferredHeight);
+        STATIC XTCDECL EFI_STATUS InitializeDisplay();
+        STATIC XTCDECL EFI_STATUS InitializeModule(IN EFI_HANDLE ImageHandle,
+                                                   IN PEFI_SYSTEM_TABLE SystemTable);
+        STATIC XTCDECL EFI_STATUS SetScreenResolution(IN UINT Width,
+                                                      IN UINT Height);
+
+    private:
+        STATIC EFI_STATUS FindFramebufferAddress(OUT PEFI_PHYSICAL_ADDRESS Address);
+        STATIC XTCDECL VOID GetColorMask(IN UINT EfiMask,
+                                         OUT PUSHORT ColorSize,
+                                         OUT PUSHORT ColorShift);
+        STATIC XTCDECL EFI_STATUS GetModeInformation();
+        STATIC XTCDECL VOID GetPixelInformation(IN PEFI_PIXEL_BITMASK PixelsBitMask);
+};
+
+#endif /* __XTLDR_MODULES_FRAMEBUF_HH */

boot/xtldr/modules/pecoff/CMakeLists.txt

@@ -8,8 +8,8 @@ include_directories(
 
 # Specify list of source code files
 list(APPEND XTLDR_PECOFF_SOURCE
-    ${XTLDR_PECOFF_SOURCE_DIR}/globals.c
+    ${XTLDR_PECOFF_SOURCE_DIR}/data.cc
-    ${XTLDR_PECOFF_SOURCE_DIR}/pecoff.c)
+    ${XTLDR_PECOFF_SOURCE_DIR}/pecoff.cc)
 
 # Link module executable
 add_executable(pecoff ${XTLDR_PECOFF_SOURCE})

boot/xtldr/modules/pecoff/data.cc

@@ -0,0 +1,16 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/pecoff/globals.cc
+ * DESCRIPTION:     Basic PE/COFF executable file format global and static data
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <pecoff.hh>
+
+
+/* XTOS PE/COFF Image Protocol */
+XTBL_EXECUTABLE_IMAGE_PROTOCOL PeCoff::PeProtocol;
+
+/* EFI XT Loader Protocol */
+PXTBL_LOADER_PROTOCOL PeCoff::XtLdrProtocol;

boot/xtldr/modules/pecoff/includes/pecoff.hh

@@ -0,0 +1,53 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/pecoff/includes/pecoff.hh
+ * DESCRIPTION:     Basic PE/COFF executable file format support header
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#ifndef __XTLDR_PECOFF_HH
+#define __XTLDR_PECOFF_HH
+
+#include <xtblapi.h>
+
+
+/* PE/COFF module for XTLDR */
+class PeCoff
+{
+    private:
+        STATIC XTBL_EXECUTABLE_IMAGE_PROTOCOL PeProtocol;
+        STATIC PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+
+    public:
+        STATIC XTCDECL EFI_STATUS GetEntryPoint(IN PVOID ImagePointer,
+                                                OUT PVOID *EntryPoint);
+        STATIC XTCDECL EFI_STATUS GetFileSize(IN PVOID ImagePointer,
+                                              OUT PULONGLONG FileSize);
+        STATIC XTCDECL EFI_STATUS GetImageSize(IN PVOID ImagePointer,
+                                               OUT PUINT ImageSize);
+        STATIC XTCDECL EFI_STATUS GetMachineType(IN PVOID ImagePointer,
+                                                 OUT PUSHORT MachineType);
+        STATIC XTCDECL EFI_STATUS GetSection(IN PVOID ImagePointer,
+                                             IN PCHAR SectionName,
+                                             OUT PULONG *RawData);
+        STATIC XTCDECL EFI_STATUS GetSubSystem(IN PVOID ImagePointer,
+                                               OUT PUSHORT SubSystem);
+        STATIC XTCDECL EFI_STATUS GetVersion(IN PVOID ImagePointer,
+                                             OUT PUSHORT Version);
+        STATIC XTCDECL EFI_STATUS InitializeModule(IN EFI_HANDLE ImageHandle,
+                                                   IN PEFI_SYSTEM_TABLE SystemTable);
+        STATIC XTCDECL EFI_STATUS LoadImage(IN PEFI_FILE_HANDLE FileHandle,
+                                            IN LOADER_MEMORY_TYPE MemoryType,
+                                            IN PVOID VirtualAddress,
+                                            OUT PVOID *ImagePointer);
+        STATIC XTCDECL EFI_STATUS RelocateImage(IN PVOID ImagePointer,
+                                                IN EFI_VIRTUAL_ADDRESS Address);
+        STATIC XTCDECL EFI_STATUS UnloadImage(IN PVOID ImagePointer);
+        STATIC XTCDECL EFI_STATUS VerifyImage(IN PVOID ImagePointer);
+
+    private:
+        STATIC XTCDECL EFI_STATUS RelocateLoadedImage(IN PPECOFF_IMAGE_CONTEXT Image);
+};
+
+#endif /* __XTLDR_PECOFF_HH */

boot/xtldr/modules/pecoff/pecoff.cc

@@ -1,12 +1,12 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/pecoff/pecoff.c
+ * FILE:            xtldr/modules/pecoff/pecoff.cc
  * DESCRIPTION:     Basic PE/COFF executable file format support module
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <pecoff.h>
+#include <pecoff.hh>
 
 
 /* PE/COFF_O module information */
@@ -15,6 +15,7 @@ MODULE_DESCRIPTION(L"Basic PE/COFF executable file format support");
 MODULE_LICENSE(L"GPLv3");
 MODULE_VERSION(L"0.1");
 
+
 /**
  * Returns the address of the entry point.
  *
@@ -30,10 +31,13 @@ MODULE_VERSION(L"0.1");
  */
 XTCDECL
 EFI_STATUS
-PeGetEntryPoint(IN PVOID ImagePointer,
+PeCoff::GetEntryPoint(IN PVOID ImagePointer,
                       OUT PVOID *EntryPoint)
 {
-    PPECOFF_IMAGE_CONTEXT Image = ImagePointer;
+    PPECOFF_IMAGE_CONTEXT Image;
+
+    /* Get PE/COFF image pointer*/
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
 
     /* Validate input data */
     if(!Image || !Image->PeHeader)
@@ -46,12 +50,12 @@ PeGetEntryPoint(IN PVOID ImagePointer,
     if(Image->PeHeader->OptionalHeader32.Magic == PECOFF_IMAGE_PE_OPTIONAL_HDR64_MAGIC)
     {
         /* Get entry point from 64-bit optional header */
-        *EntryPoint = (PUINT8)Image->VirtualAddress + Image->PeHeader->OptionalHeader64.AddressOfEntryPoint;
+        *EntryPoint = (PUCHAR)Image->VirtualAddress + Image->PeHeader->OptionalHeader64.AddressOfEntryPoint;
     }
     else
     {
         /* Get entry point from 32-bit optional header */
-        *EntryPoint = (PUINT8)Image->VirtualAddress + Image->PeHeader->OptionalHeader32.AddressOfEntryPoint;
+        *EntryPoint = (PUCHAR)Image->VirtualAddress + Image->PeHeader->OptionalHeader32.AddressOfEntryPoint;
     }
 
     /* Return success */
@@ -73,13 +77,13 @@ PeGetEntryPoint(IN PVOID ImagePointer,
  */
 XTCDECL
 EFI_STATUS
-PeGetFileSize(IN PVOID ImagePointer,
+PeCoff::GetFileSize(IN PVOID ImagePointer,
                     OUT PULONGLONG FileSize)
 {
     PPECOFF_IMAGE_CONTEXT Image;
 
     /* Get PE/COFF image pointer*/
-    Image = ImagePointer;
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
 
     /* Validate input data */
     if(!Image || !Image->ImageSize)
@@ -108,13 +112,13 @@ PeGetFileSize(IN PVOID ImagePointer,
  */
 XTCDECL
 EFI_STATUS
-PeGetImageSize(IN PVOID ImagePointer,
+PeCoff::GetImageSize(IN PVOID ImagePointer,
                      OUT PUINT ImageSize)
 {
     PPECOFF_IMAGE_CONTEXT Image;
 
     /* Get PE/COFF image pointer*/
-    Image = ImagePointer;
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
 
     /* Validate input data */
     if(!Image || !Image->ImageSize)
@@ -143,10 +147,13 @@ PeGetImageSize(IN PVOID ImagePointer,
  */
 XTCDECL
 EFI_STATUS
-PeGetMachineType(IN PVOID ImagePointer,
+PeCoff::GetMachineType(IN PVOID ImagePointer,
                        OUT PUSHORT MachineType)
 {
-    PPECOFF_IMAGE_CONTEXT Image = ImagePointer;
+    PPECOFF_IMAGE_CONTEXT Image;
+
+    /* Get PE/COFF image pointer*/
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
 
     /* Validate input data */
     if(!Image || !Image->PeHeader)
@@ -178,7 +185,7 @@ PeGetMachineType(IN PVOID ImagePointer,
  */
 XTCDECL
 EFI_STATUS
-PeGetSection(IN PVOID ImagePointer,
+PeCoff::GetSection(IN PVOID ImagePointer,
                    IN PCHAR SectionName,
                    OUT PULONG *RawData)
 {
@@ -188,7 +195,7 @@ PeGetSection(IN PVOID ImagePointer,
     USHORT SectionIndex;
 
     /* Get PE/COFF image pointer*/
-    Image = ImagePointer;
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
 
     /* Validate input data */
     if(!Image || !Image->PeHeader)
@@ -212,16 +219,16 @@ PeGetSection(IN PVOID ImagePointer,
     }
 
     /* Get section name length */
-    SectionNameLength = RtlStringLength(SectionName, 0);
+    SectionNameLength = XtLdrProtocol->String.Length(SectionName, 0);
 
     /* Iterate through all image sections */
     for(SectionIndex = 0; SectionIndex < Image->PeHeader->FileHeader.NumberOfSections; SectionIndex++)
     {
         /* Check section name */
-        if(RtlCompareString((PCHAR)SectionHeader[SectionIndex].Name, SectionName, SectionNameLength) == 0)
+        if(XtLdrProtocol->String.Compare((PCHAR)SectionHeader[SectionIndex].Name, SectionName, SectionNameLength) == 0)
         {
             /* Store section address and return */
-            *RawData = Image->Data + SectionHeader[SectionIndex].PointerToRawData;
+            *RawData = (PULONG)((PUCHAR)Image->Data + SectionHeader[SectionIndex].PointerToRawData);
             return STATUS_EFI_SUCCESS;
         }
     }
@@ -245,10 +252,13 @@ PeGetSection(IN PVOID ImagePointer,
  */
 XTCDECL
 EFI_STATUS
-PeGetSubSystem(IN PVOID ImagePointer,
+PeCoff::GetSubSystem(IN PVOID ImagePointer,
                      OUT PUSHORT SubSystem)
 {
-    PPECOFF_IMAGE_CONTEXT Image = ImagePointer;
+    PPECOFF_IMAGE_CONTEXT Image;
+
+    /* Get PE/COFF image pointer*/
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
 
     /* Validate input data */
     if(!Image || !Image->PeHeader)
@@ -288,10 +298,13 @@ PeGetSubSystem(IN PVOID ImagePointer,
  */
 XTCDECL
 EFI_STATUS
-PeGetVersion(IN PVOID ImagePointer,
+PeCoff::GetVersion(IN PVOID ImagePointer,
                    OUT PUSHORT Version)
 {
-    PPECOFF_IMAGE_CONTEXT Image = ImagePointer;
+    PPECOFF_IMAGE_CONTEXT Image;
+
+    /* Get PE/COFF image pointer*/
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
 
     /* Validate input data */
     if(!Image || !Image->PeHeader)
@@ -316,6 +329,52 @@ PeGetVersion(IN PVOID ImagePointer,
     return STATUS_EFI_SUCCESS;
 }
 
+/**
+ * Initializes PECOFF module by opening XTLDR protocol and installing PECOFF protocol.
+ *
+ * @param ImageHandle
+ *        Firmware-allocated handle that identifies the image.
+ *
+ * @param SystemTable
+ *        Provides the EFI system table.
+ *
+ * @return This routine returns status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+PeCoff::InitializeModule(IN EFI_HANDLE ImageHandle,
+                         IN PEFI_SYSTEM_TABLE SystemTable)
+{
+    EFI_GUID Guid = XT_PECOFF_IMAGE_PROTOCOL_GUID;
+    EFI_STATUS Status;
+
+    /* Open the XTLDR protocol */
+    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to open loader protocol */
+        return STATUS_EFI_PROTOCOL_ERROR;
+    }
+
+    /* Set routines available via PE/COFF image protocol */
+    PeProtocol.GetEntryPoint = GetEntryPoint;
+    PeProtocol.GetFileSize = GetFileSize;
+    PeProtocol.GetImageSize = GetImageSize;
+    PeProtocol.GetMachineType = GetMachineType;
+    PeProtocol.GetSection = GetSection;
+    PeProtocol.GetSubSystem = GetSubSystem;
+    PeProtocol.GetVersion = GetVersion;
+    PeProtocol.LoadImage = LoadImage;
+    PeProtocol.RelocateImage = RelocateImage;
+    PeProtocol.UnloadImage = UnloadImage;
+    PeProtocol.VerifyImage = VerifyImage;
+
+    /* Register PE/COFF protocol */
+    return XtLdrProtocol->Protocol.Install(&PeProtocol, &Guid);
+}
+
 /**
  * Loads a PE/COFF image file.
  *
@@ -337,7 +396,7 @@ PeGetVersion(IN PVOID ImagePointer,
  */
 XTCDECL
 EFI_STATUS
-PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
+PeCoff::LoadImage(IN PEFI_FILE_HANDLE FileHandle,
                   IN LOADER_MEMORY_TYPE MemoryType,
                   IN PVOID VirtualAddress,
                   OUT PVOID *ImagePointer)
@@ -400,7 +459,7 @@ PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
     }
 
     /* Store file size and memory type, nullify data and free up memory */
-    ImageData->Data = NULL;
+    ImageData->Data = NULLPTR;
     ImageData->FileSize = FileInfo->FileSize;
     ImageData->MemoryType = MemoryType;
     XtLdrProtocol->Memory.FreePool(FileInfo);
@@ -409,7 +468,7 @@ PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
     Pages = EFI_SIZE_TO_PAGES(ImageData->FileSize);
 
     /* Allocate pages */
-    Status = XtLdrProtocol->Memory.AllocatePages(Pages, &Address);
+    Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, Pages, &Address);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Pages allocation failure */
@@ -433,10 +492,10 @@ PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
 
     /* Extract DOS and PE headers */
     ImageData->DosHeader = (PPECOFF_IMAGE_DOS_HEADER)Data;
-    ImageData->PeHeader = (PPECOFF_IMAGE_PE_HEADER)((PUINT8)Data + ImageData->DosHeader->PeHeaderOffset);
+    ImageData->PeHeader = (PPECOFF_IMAGE_PE_HEADER)((PUCHAR)Data + ImageData->DosHeader->PeHeaderOffset);
 
     /* Validate headers */
-    Status = PeVerifyImage(ImageData);
+    Status = PeCoff::VerifyImage(ImageData);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Header validation failed, probably broken or invalid PE/COFF image */
@@ -472,7 +531,7 @@ PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
     ImageData->ImagePages = EFI_SIZE_TO_PAGES(ImageData->ImageSize);
 
     /* Allocate image pages */
-    Status = XtLdrProtocol->Memory.AllocatePages(ImageData->ImagePages, &Address);
+    Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, ImageData->ImagePages, &Address);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Pages reallocation failure */
@@ -482,7 +541,7 @@ PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
     }
 
     /* Store image data and virtual address */
-    ImageData->Data = (PUINT8)(UINT_PTR)Address;
+    ImageData->Data = (PUCHAR)(UINT_PTR)Address;
     ImageData->PhysicalAddress = (PVOID)(UINT_PTR)Address;
     if(VirtualAddress)
     {
@@ -534,7 +593,7 @@ PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
         if(SectionSize > 0 && SectionHeader[Index].PointerToRawData != 0)
         {
             /* Copy section */
-            XtLdrProtocol->Memory.CopyMemory((PUINT8)ImageData->Data + SectionHeader[Index].VirtualAddress,
+            XtLdrProtocol->Memory.CopyMemory((PUCHAR)ImageData->Data + SectionHeader[Index].VirtualAddress,
                                              Data + SectionHeader[Index].PointerToRawData, SectionSize);
         }
 
@@ -542,7 +601,7 @@ PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
         if(SectionSize < SectionHeader[Index].Misc.VirtualSize)
         {
             /* Fill remaining space with zeroes */
-            XtLdrProtocol->Memory.ZeroMemory((PUINT8)ImageData->Data + SectionHeader[Index].VirtualAddress + SectionSize,
+            XtLdrProtocol->Memory.ZeroMemory((PUCHAR)ImageData->Data + SectionHeader[Index].VirtualAddress + SectionSize,
                                              SectionHeader[Index].Misc.VirtualSize - SectionSize);
         }
     }
@@ -551,7 +610,7 @@ PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
     XtLdrProtocol->Memory.FreePages((EFI_PHYSICAL_ADDRESS)(UINT_PTR)Data, Pages);
 
     /* Perform relocation fixups */
-    Status = PepRelocateLoadedImage(ImageData);
+    Status = PeCoff::RelocateLoadedImage(ImageData);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to relocate image */
@@ -581,14 +640,16 @@ PeLoadImage(IN PEFI_FILE_HANDLE FileHandle,
  */
 XTCDECL
 EFI_STATUS
-PeRelocateImage(IN PVOID ImagePointer,
+PeCoff::RelocateImage(IN PVOID ImagePointer,
                       IN EFI_VIRTUAL_ADDRESS Address)
 {
-    PPECOFF_IMAGE_CONTEXT Image = ImagePointer;
+    PPECOFF_IMAGE_CONTEXT Image;
-
+    ULONGLONG ImageBase, OldVirtualAddress;
-    UINT64 ImageBase, OldVirtualAddress;
     EFI_STATUS Status;
 
+    /* Get PE/COFF image pointer*/
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
+
     /* Store original virtual address */
     OldVirtualAddress = (UINT_PTR)Image->VirtualAddress;
 
@@ -606,7 +667,7 @@ PeRelocateImage(IN PVOID ImagePointer,
 
     /* Overwrite virtual address and relocate image once again */
     Image->VirtualAddress = (PVOID)(Address - OldVirtualAddress + ImageBase);
-    Status = PepRelocateLoadedImage(Image);
+    Status = PeCoff::RelocateLoadedImage(Image);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Relocation failed */
@@ -620,98 +681,6 @@ PeRelocateImage(IN PVOID ImagePointer,
     return STATUS_EFI_SUCCESS;
 }
 
-/**
- * Unloads a PE/COFF image file and frees allocated memory.
- *
- * @param ImagePointer
- *        Supplies a pointer to the PE/COFF context structure representing the loaded image.
- *
- * @return This routine returns a status code.
- *
- * @since XT 1.0
- */
-XTCDECL
-EFI_STATUS
-PeUnloadImage(IN PVOID ImagePointer)
-{
-    PPECOFF_IMAGE_CONTEXT Image;
-    EFI_STATUS Status;
-
-    /* Get PE/COFF image pointer*/
-    Image = ImagePointer;
-
-    /* Validate input data */
-    if(!Image || !Image->Data)
-    {
-        /* Invalid parameter passed */
-        return STATUS_EFI_INVALID_PARAMETER;
-    }
-
-    /* Free memory allocated for the image */
-    Status = XtLdrProtocol->Memory.FreePages(Image->ImagePages, (EFI_PHYSICAL_ADDRESS)(UINT_PTR)Image->Data);
-    Status |= XtLdrProtocol->Memory.FreePool(Image);
-
-    /* Return status */
-    return Status;
-}
-
-/**
- * Validates a PE/COFF image headers.
- *
- * @param ImagePointer
- *        Supplies a pointer to the PE/COFF context structure representing the loaded image.
- *
- * @return This routine returns a status code.
- *
- * @since XT 1.0
- */
-XTCDECL
-EFI_STATUS
-PeVerifyImage(IN PVOID ImagePointer)
-{
-    PPECOFF_IMAGE_CONTEXT Image = ImagePointer;
-
-    /* Validate input data */
-    if(!Image || !Image->PeHeader)
-    {
-        /* Invalid parameter passed */
-        return STATUS_EFI_INVALID_PARAMETER;
-    }
-
-    /* Validate file size */
-    if(Image->FileSize < sizeof(PECOFF_IMAGE_DOS_HEADER))
-    {
-        /* PE/COFF image shorter than DOS header, return error*/
-        return STATUS_EFI_END_OF_FILE;
-    }
-
-    /* Validate DOS header */
-    if(Image->DosHeader->Magic != PECOFF_IMAGE_DOS_SIGNATURE)
-    {
-        /* Invalid DOS signature, return error */
-        return STATUS_EFI_INCOMPATIBLE_VERSION;
-    }
-
-    /* Validate PE header */
-    if(Image->PeHeader->Signature != PECOFF_IMAGE_NT_SIGNATURE &&
-       Image->PeHeader->Signature != PECOFF_IMAGE_XT_SIGNATURE)
-    {
-        /* Invalid PE signature, return error */
-        return STATUS_EFI_INCOMPATIBLE_VERSION;
-    }
-
-    /* Validate optional header */
-    if(Image->PeHeader->OptionalHeader32.Magic != PECOFF_IMAGE_PE_OPTIONAL_HDR32_MAGIC &&
-       Image->PeHeader->OptionalHeader64.Magic != PECOFF_IMAGE_PE_OPTIONAL_HDR64_MAGIC)
-    {
-        /* Invalid optional header signature, return error */
-        return STATUS_EFI_INCOMPATIBLE_VERSION;
-    }
-
-    /* Return success */
-    return STATUS_EFI_SUCCESS;
-}
-
 /**
  * Relocates a loaded PE/COFF image.
  *
@@ -724,15 +693,15 @@ PeVerifyImage(IN PVOID ImagePointer)
  */
 XTCDECL
 EFI_STATUS
-PepRelocateLoadedImage(IN PPECOFF_IMAGE_CONTEXT Image)
+PeCoff::RelocateLoadedImage(IN PPECOFF_IMAGE_CONTEXT Image)
 {
     PPECOFF_IMAGE_BASE_RELOCATION RelocationDir, RelocationEnd;
     PPECOFF_IMAGE_DATA_DIRECTORY DataDirectory;
     USHORT Offset, Type, Count;
     PUSHORT TypeOffset;
-    UINT64 ImageBase;
+    ULONGLONG ImageBase;
-    PUINT32 Address;
+    PUINT Address;
-    PUINT64 LongPtr;
+    PULONGLONG LongPtr;
     PUINT ShortPtr;
 
     /* Make sure image is not stripped */
@@ -793,7 +762,7 @@ PepRelocateLoadedImage(IN PPECOFF_IMAGE_CONTEXT Image)
             Type = *TypeOffset >> 12;
 
             /* Check if end of the loaded address reached */
-            if((PVOID)(PUSHORT)(Address + Offset) >= Image->Data + Image->ImageSize)
+            if((PVOID)(PUSHORT)(Address + Offset) >= (PUCHAR)Image->Data + Image->ImageSize)
             {
                 /* Do not relocate after the end of loaded image */
                 break;
@@ -816,7 +785,7 @@ PepRelocateLoadedImage(IN PPECOFF_IMAGE_CONTEXT Image)
                         break;
                     case PECOFF_IMAGE_REL_BASED_HIGHLOW:
                         /* 32-bit relocation of hight and low half of address */
-                        ShortPtr = (PUINT32)((PUCHAR)Address + Offset);
+                        ShortPtr = (PUINT)((PUCHAR)Address + Offset);
                         *ShortPtr = *ShortPtr - ImageBase + (UINT_PTR)Image->VirtualAddress;
                         break;
                     default:
@@ -836,6 +805,101 @@ PepRelocateLoadedImage(IN PPECOFF_IMAGE_CONTEXT Image)
     return STATUS_EFI_SUCCESS;
 }
 
+/**
+ * Unloads a PE/COFF image file and frees allocated memory.
+ *
+ * @param ImagePointer
+ *        Supplies a pointer to the PE/COFF context structure representing the loaded image.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+PeCoff::UnloadImage(IN PVOID ImagePointer)
+{
+    PPECOFF_IMAGE_CONTEXT Image;
+    EFI_STATUS Status;
+
+    /* Get PE/COFF image pointer*/
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
+
+    /* Validate input data */
+    if(!Image || !Image->Data)
+    {
+        /* Invalid parameter passed */
+        return STATUS_EFI_INVALID_PARAMETER;
+    }
+
+    /* Free memory allocated for the image */
+    Status = XtLdrProtocol->Memory.FreePages(Image->ImagePages, (EFI_PHYSICAL_ADDRESS)(UINT_PTR)Image->Data);
+    Status |= XtLdrProtocol->Memory.FreePool(Image);
+
+    /* Return status */
+    return Status;
+}
+
+/**
+ * Validates a PE/COFF image headers.
+ *
+ * @param ImagePointer
+ *        Supplies a pointer to the PE/COFF context structure representing the loaded image.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+PeCoff::VerifyImage(IN PVOID ImagePointer)
+{
+    PPECOFF_IMAGE_CONTEXT Image;
+
+    /* Get PE/COFF image pointer*/
+    Image = (PPECOFF_IMAGE_CONTEXT)ImagePointer;
+
+    /* Validate input data */
+    if(!Image || !Image->PeHeader)
+    {
+        /* Invalid parameter passed */
+        return STATUS_EFI_INVALID_PARAMETER;
+    }
+
+    /* Validate file size */
+    if(Image->FileSize < sizeof(PECOFF_IMAGE_DOS_HEADER))
+    {
+        /* PE/COFF image shorter than DOS header, return error*/
+        return STATUS_EFI_END_OF_FILE;
+    }
+
+    /* Validate DOS header */
+    if(Image->DosHeader->Magic != PECOFF_IMAGE_DOS_SIGNATURE)
+    {
+        /* Invalid DOS signature, return error */
+        return STATUS_EFI_INCOMPATIBLE_VERSION;
+    }
+
+    /* Validate PE header */
+    if(Image->PeHeader->Signature != PECOFF_IMAGE_NT_SIGNATURE &&
+       Image->PeHeader->Signature != PECOFF_IMAGE_XT_SIGNATURE)
+    {
+        /* Invalid PE signature, return error */
+        return STATUS_EFI_INCOMPATIBLE_VERSION;
+    }
+
+    /* Validate optional header */
+    if(Image->PeHeader->OptionalHeader32.Magic != PECOFF_IMAGE_PE_OPTIONAL_HDR32_MAGIC &&
+       Image->PeHeader->OptionalHeader64.Magic != PECOFF_IMAGE_PE_OPTIONAL_HDR64_MAGIC)
+    {
+        /* Invalid optional header signature, return error */
+        return STATUS_EFI_INCOMPATIBLE_VERSION;
+    }
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
 /**
  * This routine is the entry point of the XT EFI boot loader module.
  *
@@ -854,30 +918,6 @@ EFI_STATUS
 XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
                 IN PEFI_SYSTEM_TABLE SystemTable)
 {
-    EFI_GUID Guid = XT_PECOFF_IMAGE_PROTOCOL_GUID;
+    /* Initialize PECOFF module */
-    EFI_STATUS Status;
+    return PeCoff::InitializeModule(ImageHandle, SystemTable);
-
-    /* Open the XTLDR protocol */
-    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to open loader protocol */
-        return STATUS_EFI_PROTOCOL_ERROR;
-    }
-
-    /* Set routines available via PE/COFF image protocol */
-    PeCoffProtocol.GetEntryPoint = PeGetEntryPoint;
-    PeCoffProtocol.GetFileSize = PeGetFileSize;
-    PeCoffProtocol.GetImageSize = PeGetImageSize;
-    PeCoffProtocol.GetMachineType = PeGetMachineType;
-    PeCoffProtocol.GetSection = PeGetSection;
-    PeCoffProtocol.GetSubSystem = PeGetSubSystem;
-    PeCoffProtocol.GetVersion = PeGetVersion;
-    PeCoffProtocol.LoadImage = PeLoadImage;
-    PeCoffProtocol.RelocateImage = PeRelocateImage;
-    PeCoffProtocol.UnloadImage = PeUnloadImage;
-    PeCoffProtocol.VerifyImage = PeVerifyImage;
-
-    /* Register PE/COFF protocol */
-    return XtLdrProtocol->Protocol.Install(&PeCoffProtocol, &Guid);
 }

boot/xtldr/modules/xtos_o/CMakeLists.txt

@@ -8,8 +8,9 @@ include_directories(
 
 # Specify list of source code files
 list(APPEND XTLDR_XTOS_O_SOURCE
-    ${XTLDR_XTOS_O_SOURCE_DIR}/${ARCH}/memory.c
+    ${XTLDR_XTOS_O_SOURCE_DIR}/${ARCH}/memory.cc
-    ${XTLDR_XTOS_O_SOURCE_DIR}/xtos.c)
+    ${XTLDR_XTOS_O_SOURCE_DIR}/data.cc
+    ${XTLDR_XTOS_O_SOURCE_DIR}/xtos.cc)
 
 # Link bootloader executable
 add_executable(xtos_o ${XTLDR_XTOS_O_SOURCE})

boot/xtldr/modules/xtos_o/amd64/memory.cc

@@ -0,0 +1,298 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/amd64/memory.cc
+ * DESCRIPTION:     EFI memory management for AMD64 target
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ *                  Aiken Harris <harraiken91@gmail.com>
+ */
+
+#include <xtos.hh>
+
+
+/**
+ * Determines the appropriate paging level (PML) for the AMD64 architecture.
+ *
+ * @param Parameters
+ *        A pointer to the wide character string containing the kernel boot parameters.
+ *
+ * @return This routine returns the appropriate page map level (5 if LA57 is enabled, 4 otherwise).
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+ULONG
+Xtos::DeterminePagingLevel(IN CONST PWCHAR Parameters)
+{
+    CPUID_REGISTERS CpuRegisters;
+
+    /* Prepare CPUID registers to query for STD7 features */
+    XtLdrProtocol->Memory.ZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
+    CpuRegisters.Leaf = CPUID_GET_VENDOR_STRING;
+
+    /* Query CPUID */
+    XtLdrProtocol->Cpu.CpuId(&CpuRegisters);
+
+    /* Verify if the CPU supports the STD7 feature leaf (0x00000007) */
+    if(CpuRegisters.Eax >= CPUID_GET_STANDARD7_FEATURES)
+    {
+        /* Prepare CPUID registers to query for LA57 support */
+        XtLdrProtocol->Memory.ZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
+        CpuRegisters.Leaf = CPUID_GET_STANDARD7_FEATURES;
+
+        /* Query CPUID */
+        XtLdrProtocol->Cpu.CpuId(&CpuRegisters);
+
+        /* Check if eXtended Physical Addressing (XPA) is enabled and if LA57 is supported by the CPU */
+        if((CpuRegisters.Ecx & CPUID_FEATURES_ECX_LA57) &&
+           !(XtLdrProtocol->BootUtils.GetBooleanParameter(Parameters, L"NOXPA")))
+        {
+            /* Enable LA57 (PML5) */
+            return 5;
+        }
+    }
+
+    /* Disable LA57 and use PML4 by default */
+    return 4;
+}
+
+/**
+ * Builds the actual memory mapping page table and enables paging. This routine exits EFI boot services as well.
+ *
+ * @param PageMap
+ *        Supplies a pointer to the page mapping structure.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Xtos::EnablePaging(IN PXTBL_PAGE_MAPPING PageMap)
+{
+    EFI_STATUS Status;
+    EFI_PHYSICAL_ADDRESS TrampolineAddress;
+    PXT_TRAMPOLINE_ENTRY TrampolineEntry;
+    ULONG_PTR TrampolineSize;
+    PVOID TrampolineCode;
+
+    /* Build page map */
+    Status = XtLdrProtocol->Memory.BuildPageMap(PageMap, (PageMap->PageMapLevel > 4) ? MM_P5E_LA57_BASE : MM_PXE_BASE);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to build page map */
+        XtLdrProtocol->Debug.Print(L"Failed to build page map (Status code: %zX)\n", Status);
+        return Status;
+    }
+
+    /* Map memory for hardware layer */
+    Status = MapHardwareMemoryPool(PageMap);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to map memory for hardware layer */
+        XtLdrProtocol->Debug.Print(L"Failed to map memory for hardware leyer (Status code: %zX)\n", Status);
+        return Status;
+    }
+
+    /* Check the configured page map level to set the LA57 state accordingly */
+    if(PageMap->PageMapLevel == 5)
+    {
+        /* Get the trampoline code information */
+        XtLdrProtocol->BootUtils.GetTrampolineInformation(TrampolineEnableXpa, &TrampolineCode, &TrampolineSize);
+        if(TrampolineCode == NULLPTR || TrampolineSize == 0)
+        {
+            /* Failed to get trampoline information */
+            XtLdrProtocol->Debug.Print(L"Failed to get trampoline information\n");
+            return STATUS_EFI_INVALID_PARAMETER;
+        }
+
+        /* Set the address of the trampoline code below 1MB */
+        TrampolineAddress = MM_TRAMPOLINE_ADDRESS;
+
+        /* Allocate pages for the trampoline */
+        Status = XtLdrProtocol->Memory.AllocatePages(AllocateAddress, EFI_SIZE_TO_PAGES(TrampolineSize), &TrampolineAddress);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Failed to allocate memory for trampoline code */
+            XtLdrProtocol->Debug.Print(L"Failed to allocate memory for trampoline code (Status code: %zX)\n", Status);
+            return Status;
+        }
+
+        /* Set the trampoline entry point and copy its code into the allocated buffer */
+        TrampolineEntry = (PXT_TRAMPOLINE_ENTRY)(UINT_PTR)TrampolineAddress;
+        XtLdrProtocol->Memory.CopyMemory((PVOID)TrampolineEntry, TrampolineCode, TrampolineSize);
+    }
+
+    /* Exit EFI Boot Services */
+    XtLdrProtocol->Debug.Print(L"Exiting EFI boot services\n");
+    Status = XtLdrProtocol->Utils.ExitBootServices();
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to exit boot services */
+        XtLdrProtocol->Debug.Print(L"Failed to exit boot services (Status code: %zX)\n", Status);
+        return STATUS_EFI_ABORTED;
+    }
+
+    /* Check the configured page map level to set the LA57 state accordingly */
+    if(PageMap->PageMapLevel == 5)
+    {
+        /* Enable Linear Address 57-bit (LA57) extension */
+        XtLdrProtocol->Debug.Print(L"Enabling Linear Address 57-bit (LA57)\n");
+
+        /* Execute the trampoline to enable LA57 and write PML5 to CR3 */
+        TrampolineEntry((UINT64)PageMap->PtePointer);
+    }
+    else
+    {
+        /* Disable Linear Address 57-bit (LA57) extension */
+        XtLdrProtocol->Debug.Print(L"Disabling Linear Address 57-bit (LA57)\n");
+
+        /* Write PML4 to CR3 and enable paging */
+        XtLdrProtocol->Cpu.WriteControlRegister(3, (UINT_PTR)PageMap->PtePointer);
+        XtLdrProtocol->Cpu.WriteControlRegister(0, XtLdrProtocol->Cpu.ReadControlRegister(0) | CR0_PG);
+    }
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
+/**
+ * Maps the page table for hardware layer addess space.
+ *
+ * @param PageMap
+ *        Supplies a pointer to the page mapping structure.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Xtos::MapHardwareMemoryPool(IN PXTBL_PAGE_MAPPING PageMap)
+{
+    PHARDWARE_PTE P5eBase, PdeBase, PpeBase, PxeBase;
+    EFI_PHYSICAL_ADDRESS Address;
+    EFI_STATUS Status;
+
+    if(PageMap->PageMapLevel == 5)
+    {
+        /* Get P5E (PML5) base address */
+        P5eBase = (PHARDWARE_PTE)PageMap->PtePointer;
+
+        /* Check if P5E entry already exists */
+        if(!P5eBase[(MM_HARDWARE_VA_START >> MM_P5I_SHIFT) & 0x1FF].Valid)
+        {
+            /* No valid P5E, allocate memory */
+            Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, 1, &Address);
+            if(Status != STATUS_EFI_SUCCESS)
+            {
+                /* Memory allocation failure, return error */
+                return Status;
+            }
+
+            /* Zero fill memory used by P5E */
+            XtLdrProtocol->Memory.ZeroMemory((PVOID)Address, EFI_PAGE_SIZE);
+
+            /* Make P5E valid */
+            P5eBase[(MM_HARDWARE_VA_START >> MM_P5I_SHIFT) & 0x1FF].Valid = 1;
+            P5eBase[(MM_HARDWARE_VA_START >> MM_P5I_SHIFT) & 0x1FF].PageFrameNumber = Address / EFI_PAGE_SIZE;
+            P5eBase[(MM_HARDWARE_VA_START >> MM_P5I_SHIFT) & 0x1FF].Writable = 1;
+
+            /* Set PXE base address */
+            PxeBase = (PHARDWARE_PTE)(UINT_PTR)Address;
+        }
+        else
+        {
+            /* Set PXE base address based on existing P5E */
+            PxeBase = (PHARDWARE_PTE)((P5eBase[(MM_HARDWARE_VA_START >> MM_P5I_SHIFT) & 0x1FF].PageFrameNumber) << EFI_PAGE_SHIFT);
+        }
+    }
+    else
+    {
+        /* Get PXE (PML4) base address */
+        PxeBase = (PHARDWARE_PTE)PageMap->PtePointer;
+    }
+
+    /* Check if PXE entry already exists */
+    if(!PxeBase[(MM_HARDWARE_VA_START >> MM_PXI_SHIFT) & 0x1FF].Valid)
+    {
+        /* No valid PXE, allocate memory */
+        Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, 1, &Address);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory allocation failure, return error */
+            return Status;
+        }
+
+        /* Zero fill memory used by PXE */
+        XtLdrProtocol->Memory.ZeroMemory((PVOID)Address, EFI_PAGE_SIZE);
+
+        /* Make PXE valid */
+        PxeBase[(MM_HARDWARE_VA_START >> MM_PXI_SHIFT) & 0x1FF].Valid = 1;
+        PxeBase[(MM_HARDWARE_VA_START >> MM_PXI_SHIFT) & 0x1FF].PageFrameNumber = Address / EFI_PAGE_SIZE;
+        PxeBase[(MM_HARDWARE_VA_START >> MM_PXI_SHIFT) & 0x1FF].Writable = 1;
+
+        /* Set PPE base address */
+        PpeBase = (PHARDWARE_PTE)(UINT_PTR)Address;
+    }
+    else
+    {
+        /* Set PPE base address based on existing PXE */
+        PpeBase = (PHARDWARE_PTE)((PxeBase[(MM_HARDWARE_VA_START >> MM_PXI_SHIFT) & 0x1FF].PageFrameNumber) << EFI_PAGE_SHIFT);
+    }
+
+    /* Check if PPE entry already exists */
+    if(!PpeBase[(MM_HARDWARE_VA_START >> MM_PPI_SHIFT) & 0x1FF].Valid)
+    {
+        /* No valid PPE, allocate memory */
+        Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, 1, &Address);
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Memory allocation failure, return error */
+            return Status;
+        }
+
+        /* Zero fill memory used by PPE */
+        XtLdrProtocol->Memory.ZeroMemory((PVOID)Address, EFI_PAGE_SIZE);
+
+        /* Make PPE valid */
+        PpeBase[(MM_HARDWARE_VA_START >> MM_PPI_SHIFT) & 0x1FF].Valid = 1;
+        PpeBase[(MM_HARDWARE_VA_START >> MM_PPI_SHIFT) & 0x1FF].PageFrameNumber = Address / EFI_PAGE_SIZE;
+        PpeBase[(MM_HARDWARE_VA_START >> MM_PPI_SHIFT) & 0x1FF].Writable = 1;
+
+        /* Set PDE base address */
+        PdeBase = (PHARDWARE_PTE)Address;
+    }
+    else
+    {
+        /* Set PDE base address, based on existing PPE */
+        PdeBase = (PHARDWARE_PTE)((PpeBase[(MM_HARDWARE_VA_START >> MM_PPI_SHIFT) & 0x1FF].PageFrameNumber) << EFI_PAGE_SHIFT);
+    }
+
+    /* Loop through 2 PDE entries */
+    for(UINT Index = 0 ; Index < 2 ; Index++)
+    {
+        /* Check if PDE entry already exists */
+        if(!PdeBase[((MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF) + Index].Valid)
+        {
+            /* No valid PDE, allocate memory */
+            Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, 1, &Address);
+            if(Status != STATUS_EFI_SUCCESS)
+            {
+                /* Memory allocation failure, return error */
+                return Status;
+            }
+
+            /* Zero fill memory used by PDE */
+            XtLdrProtocol->Memory.ZeroMemory((PVOID)Address, EFI_PAGE_SIZE);
+
+            /* Make PDE valid */
+            PdeBase[((MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF) + Index].Valid = 1;
+            PdeBase[((MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF) + Index].PageFrameNumber = Address / EFI_PAGE_SIZE;
+            PdeBase[((MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF) + Index].Writable = 1;
+        }
+    }
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}

boot/xtldr/modules/xtos_o/data.cc

@@ -0,0 +1,19 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/xtos/data.cc
+ * DESCRIPTION:     XTOS module global and static data
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <xtos.hh>
+
+
+/* XTOS Boot Protocol */
+XTBL_BOOT_PROTOCOL Xtos::BootProtocol;
+
+/* XTOS PE/COFF Image Protocol */
+PXTBL_EXECUTABLE_IMAGE_PROTOCOL Xtos::PeCoffProtocol;
+
+/* EFI XT Loader Protocol */
+PXTBL_LOADER_PROTOCOL Xtos::XtLdrProtocol;

boot/xtldr/modules/xtos_o/i686/memory.cc

@@ -0,0 +1,181 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/i686/memory.cc
+ * DESCRIPTION:     EFI memory management for i686 target
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <xtos.hh>
+
+
+/**
+ * Determines the appropriate paging level (PML) for the i686 architecture.
+ *
+ * @param Parameters
+ *        A pointer to the wide character string containing the kernel boot parameters.
+ *
+ * @return This routine returns the appropriate page map level (3 if PAE is enabled, 2 otherwise).
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+ULONG
+Xtos::DeterminePagingLevel(IN CONST PWCHAR Parameters)
+{
+    CPUID_REGISTERS CpuRegisters;
+
+    /* Prepare CPUID registers to query for PAE support */
+    XtLdrProtocol->Memory.ZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
+    CpuRegisters.Leaf = CPUID_GET_STANDARD1_FEATURES;
+
+    /* Query CPUID */
+    XtLdrProtocol->Cpu.CpuId(&CpuRegisters);
+
+    /* Check if eXtended Physical Addressing (XPA) is enabled and if PAE is supported by the CPU */
+    if((CpuRegisters.Edx & CPUID_FEATURES_EDX_PAE) &&
+       !(XtLdrProtocol->BootUtils.GetBooleanParameter(Parameters, L"NOXPA")))
+    {
+        /* Enable PAE (PML3) */
+        return 3;
+    }
+
+    /* Disable PAE and use PML2 by default */
+    return 2;
+}
+
+/**
+ * Builds the actual memory mapping page table and enables paging. This routine exits EFI boot services as well.
+ *
+ * @param PageMap
+ *        Supplies a pointer to the page mapping structure.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Xtos::EnablePaging(IN PXTBL_PAGE_MAPPING PageMap)
+{
+    EFI_STATUS Status;
+
+    /* Build page map */
+    Status = XtLdrProtocol->Memory.BuildPageMap(PageMap, MM_PTE_BASE);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to build page map */
+        XtLdrProtocol->Debug.Print(L"Failed to build page map (Status code: %zX)\n", Status);
+        return Status;
+    }
+
+    /* Map memory for hardware layer */
+    Status = MapHardwareMemoryPool(PageMap);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to map memory for hardware layer */
+        XtLdrProtocol->Debug.Print(L"Failed to map memory for hardware layer (Status code: %zX)\n", Status);
+        return Status;
+    }
+
+    /* Exit EFI Boot Services */
+    XtLdrProtocol->Debug.Print(L"Exiting EFI boot services\n");
+    Status = XtLdrProtocol->Utils.ExitBootServices();
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to exit boot services */
+        XtLdrProtocol->Debug.Print(L"Failed to exit boot services (Status code: %zX)\n", Status);
+        return STATUS_EFI_ABORTED;
+    }
+
+    /* Disable paging */
+    XtLdrProtocol->Cpu.WriteControlRegister(0, XtLdrProtocol->Cpu.ReadControlRegister(0) & ~CR0_PG);
+
+    /* Check the configured page map level to set the PAE state accordingly */
+    if(PageMap->PageMapLevel == 3)
+    {
+        /* Enable Physical Address Extension (PAE) */
+        XtLdrProtocol->Debug.Print(L"Enabling Physical Address Extension (PAE)\n");
+        XtLdrProtocol->Cpu.WriteControlRegister(4, XtLdrProtocol->Cpu.ReadControlRegister(4) | CR4_PAE);
+    }
+    else
+    {
+        /* Disable Physical Address Extension (PAE) */
+        XtLdrProtocol->Debug.Print(L"Disabling Physical Address Extension (PAE)\n");
+        XtLdrProtocol->Cpu.WriteControlRegister(4, XtLdrProtocol->Cpu.ReadControlRegister(4) & ~CR4_PAE);
+    }
+
+    /* Write page mappings to CR3 */
+    XtLdrProtocol->Cpu.WriteControlRegister(3, (UINT_PTR)PageMap->PtePointer);
+
+    /* Enable paging */
+    XtLdrProtocol->Cpu.WriteControlRegister(0, XtLdrProtocol->Cpu.ReadControlRegister(0) | CR0_PG);
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
+/**
+ * Maps the page table for hardware layer addess space.
+ *
+ * @param PageMap
+ *        Supplies a pointer to the page mapping structure.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Xtos::MapHardwareMemoryPool(IN PXTBL_PAGE_MAPPING PageMap)
+{
+    EFI_PHYSICAL_ADDRESS Address;
+    PHARDWARE_LEGACY_PTE LegacyPdeBase;
+    PHARDWARE_MODERN_PTE PdeBase;
+    EFI_STATUS Status;
+
+    /* Allocate memory */
+    Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, 1, &Address);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Memory allocation failure, return error */
+        return Status;
+    }
+
+    /* Zero fill allocated memory */
+    XtLdrProtocol->Memory.ZeroMemory((PVOID)Address, EFI_PAGE_SIZE);
+
+    /* Check if PAE is enabled (3-level paging) */
+    if(PageMap->PageMapLevel == 3)
+    {
+        /* Get PDE base address (PAE enabled) */
+        PdeBase = (PHARDWARE_MODERN_PTE)(((PHARDWARE_MODERN_PTE)PageMap->PtePointer)[MM_HARDWARE_VA_START >> MM_PPI_SHIFT].PageFrameNumber << MM_PAGE_SHIFT);
+
+        /* Make PDE valid */
+        XtLdrProtocol->Memory.ZeroMemory(&PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF], sizeof(HARDWARE_MODERN_PTE));
+        PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF].PageFrameNumber = Address >> MM_PAGE_SHIFT;
+        PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF].Valid = 1;
+        PdeBase[(MM_HARDWARE_VA_START >> MM_PDI_SHIFT) & 0x1FF].Writable = 1;
+    }
+    else
+    {
+        /* Get PDE base address (PAE disabled) */
+        LegacyPdeBase = (PHARDWARE_LEGACY_PTE)PageMap->PtePointer;
+
+        /* Check for a conflicting PDE */
+        if(LegacyPdeBase[MM_HARDWARE_VA_START >> MM_PDI_LEGACY_SHIFT].Valid)
+        {
+            /* PDE already exists and is valid, nothing to do */
+            return STATUS_EFI_SUCCESS;
+        }
+
+        /* Make PDE valid  */
+        XtLdrProtocol->Memory.ZeroMemory(&LegacyPdeBase[MM_HARDWARE_VA_START >> MM_PDI_LEGACY_SHIFT], sizeof(HARDWARE_LEGACY_PTE));
+        LegacyPdeBase[MM_HARDWARE_VA_START >> MM_PDI_LEGACY_SHIFT].Valid = 1;
+        LegacyPdeBase[MM_HARDWARE_VA_START >> MM_PDI_LEGACY_SHIFT].PageFrameNumber = Address >> MM_PAGE_SHIFT;
+        LegacyPdeBase[MM_HARDWARE_VA_START >> MM_PDI_LEGACY_SHIFT].Writable = 1;
+    }
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}

boot/xtldr/modules/xtos_o/includes/xtos.hh

@@ -0,0 +1,78 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/modules/xtos/includes/xtos.hh
+ * DESCRIPTION:     XTOS boot protocol support header
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#ifndef __XTLDR_MODULES_XTOS_HH
+#define __XTLDR_MODULES_XTOS_HH
+
+#include <xtblapi.h>
+
+
+/* XTOS kernel entry point */
+typedef VOID (XTAPI *PXT_ENTRY_POINT)(IN PKERNEL_INITIALIZATION_BLOCK BootParameters);
+
+/* XTOS trampoline entry point */
+typedef VOID (*PXT_TRAMPOLINE_ENTRY)(UINT64 PageMap);
+
+
+/* XTOS module for XTLDR */
+class Xtos
+{
+    private:
+        STATIC XTBL_BOOT_PROTOCOL BootProtocol;
+        STATIC PXTBL_EXECUTABLE_IMAGE_PROTOCOL PeCoffProtocol;
+        STATIC PXTBL_LOADER_PROTOCOL XtLdrProtocol;
+
+    public:
+        STATIC XTCDECL EFI_STATUS BootSystem(IN PXTBL_BOOT_PARAMETERS Parameters);
+        STATIC XTCDECL EFI_STATUS InitializeModule(IN EFI_HANDLE ImageHandle,
+                                                   IN PEFI_SYSTEM_TABLE SystemTable);
+
+    private:
+        STATIC XTCDECL EFI_STATUS AddVirtualMemoryMapping(IN PLIST_ENTRY MemoryMappings,
+                                                          IN PVOID VirtualAddress,
+                                                          IN PVOID PhysicalAddress,
+                                                          IN UINT NumberOfPages,
+                                                          IN LOADER_MEMORY_TYPE MemoryType);
+        STATIC XTCDECL LOADER_MEMORY_TYPE ConvertEfiMemoryType(IN EFI_MEMORY_TYPE EfiMemoryType);
+        STATIC XTCDECL ULONG DeterminePagingLevel(IN CONST PWCHAR Parameters);
+        STATIC XTCDECL EFI_STATUS EnablePaging(IN PXTBL_PAGE_MAPPING PageMap);
+        STATIC XTCDECL VOID GetDisplayInformation(OUT PSYSTEM_RESOURCE_FRAMEBUFFER FrameBufferResource,
+                                                  IN PEFI_PHYSICAL_ADDRESS FrameBufferBase,
+                                                  IN PULONG_PTR FrameBufferSize,
+                                                  IN PXTBL_FRAMEBUFFER_MODE_INFORMATION FrameBufferModeInfo);
+        STATIC XTCDECL EFI_STATUS GetMemoryDescriptorList(IN PXTBL_PAGE_MAPPING PageMap,
+                                                          IN PVOID *VirtualAddress,
+                                                          OUT PLIST_ENTRY MemoryDescriptorList);
+        STATIC XTCDECL EFI_STATUS GetSystemResourcesList(IN PXTBL_PAGE_MAPPING PageMap,
+                                                         IN PVOID *VirtualAddress,
+                                                         OUT PLIST_ENTRY SystemResourcesList);
+        STATIC XTCDECL EFI_STATUS GetVirtualAddress(IN PLIST_ENTRY MemoryMappings,
+                                                    IN PVOID PhysicalAddress,
+                                                    OUT PVOID *VirtualAddress);
+        STATIC XTCDECL EFI_STATUS InitializeApicBase(IN PXTBL_PAGE_MAPPING PageMap);
+        STATIC XTCDECL EFI_STATUS InitializeLoaderBlock(IN PXTBL_PAGE_MAPPING PageMap,
+                                                        IN PVOID *VirtualAddress,
+                                                        IN PXTBL_BOOT_PARAMETERS Parameters);
+        STATIC XTCDECL EFI_STATUS InitializeVirtualMemory(IN OUT PLIST_ENTRY MemoryMappings,
+                                                          IN OUT PVOID *MemoryMapAddress);
+        STATIC XTCDECL EFI_STATUS LoadModule(IN PEFI_FILE_HANDLE BootDir,
+                                             IN PWCHAR FileName,
+                                             IN PVOID VirtualAddress,
+                                             IN LOADER_MEMORY_TYPE MemoryType,
+                                             OUT PPECOFF_IMAGE_CONTEXT *ImageContext);
+        STATIC XTCDECL EFI_STATUS MapHardwareMemoryPool(IN PXTBL_PAGE_MAPPING PageMap);
+        STATIC XTCDECL EFI_STATUS MapVirtualMemory(IN PLIST_ENTRY MemoryMappings,
+                                                   IN UINT_PTR VirtualAddress,
+                                                   IN UINT_PTR PhysicalAddress,
+                                                   IN UINT NumberOfPages,
+                                                   IN OUT PVOID *PtePointer);
+        STATIC XTCDECL EFI_STATUS RunBootSequence(IN PEFI_FILE_HANDLE BootDir,
+                                                  IN PXTBL_BOOT_PARAMETERS Parameters);
+};
+
+#endif /* __XTLDR_MODULES_XTOS_HH */

boot/xtldr/modules/xtos_o/xtos.cc

@@ -1,12 +1,12 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/modules/xtos/xtos.c
+ * FILE:            xtldr/modules/xtos/xtos.cc
  * DESCRIPTION:     XTOS boot protocol support
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <xtos.h>
+#include <xtos.hh>
 
 
 /* XTOS module information */
@@ -16,216 +16,6 @@ MODULE_DEPENDENCY(L"acpi framebuf pecoff");
 MODULE_LICENSE(L"GPLv3");
 MODULE_VERSION(L"0.1");
 
-/* EFI XT Loader Protocol */
-PXTBL_LOADER_PROTOCOL XtLdrProtocol;
-
-/* XTOS PE/COFF Image Protocol */
-PXTBL_EXECUTABLE_IMAGE_PROTOCOL XtPeCoffProtocol;
-
-/* XTOS Boot Protocol */
-XTBL_BOOT_PROTOCOL XtBootProtocol;
-
-/**
- * Returns information about frame buffer in XTOS compatible format.
- *
- * @param InformationBlock
- *        A pointer to memory area containing XT structure where all the information will be stored.
- *
- * @return This routine does not return any value.
- *
- * @since XT 1.0
- */
-XTCDECL
-VOID
-XtGetDisplayInformation(OUT PSYSTEM_RESOURCE_FRAMEBUFFER FrameBufferResource,
-                        IN PEFI_PHYSICAL_ADDRESS FrameBufferBase,
-                        IN PULONG_PTR FrameBufferSize,
-                        IN PXTBL_FRAMEBUFFER_MODE_INFORMATION FrameBufferModeInfo)
-{
-    /* Fill in frame buffer resource */
-    FrameBufferResource->Header.PhysicalAddress = (PVOID)*FrameBufferBase;
-    FrameBufferResource->Header.ResourceType = SystemResourceFrameBuffer;
-    FrameBufferResource->Header.ResourceSize = sizeof(SYSTEM_RESOURCE_FRAMEBUFFER);
-    FrameBufferResource->BufferSize = *FrameBufferSize;
-    FrameBufferResource->Width = FrameBufferModeInfo->Width;
-    FrameBufferResource->Height = FrameBufferModeInfo->Height;
-    FrameBufferResource->Depth = FrameBufferModeInfo->Depth;
-    FrameBufferResource->BitsPerPixel = FrameBufferModeInfo->BitsPerPixel;
-    FrameBufferResource->PixelsPerScanLine = FrameBufferModeInfo->PixelsPerScanLine;
-    FrameBufferResource->Pitch = FrameBufferModeInfo->Pitch;
-    FrameBufferResource->Pixels.BlueShift = FrameBufferModeInfo->PixelInformation.BlueShift;
-    FrameBufferResource->Pixels.BlueSize = FrameBufferModeInfo->PixelInformation.BlueSize;
-    FrameBufferResource->Pixels.GreenShift = FrameBufferModeInfo->PixelInformation.GreenShift;
-    FrameBufferResource->Pixels.GreenSize = FrameBufferModeInfo->PixelInformation.GreenSize;
-    FrameBufferResource->Pixels.RedShift = FrameBufferModeInfo->PixelInformation.RedShift;
-    FrameBufferResource->Pixels.RedSize = FrameBufferModeInfo->PixelInformation.RedSize;
-    FrameBufferResource->Pixels.ReservedShift = FrameBufferModeInfo->PixelInformation.ReservedShift;
-    FrameBufferResource->Pixels.ReservedSize = FrameBufferModeInfo->PixelInformation.ReservedSize;
-}
-
-XTCDECL
-EFI_STATUS
-XtGetMemoryDescriptorList(IN PXTBL_PAGE_MAPPING PageMap,
-                          IN PVOID *VirtualAddress,
-                          OUT PLIST_ENTRY MemoryDescriptorList)
-{
-    EFI_PHYSICAL_ADDRESS Address;
-    EFI_STATUS Status;
-    ULONGLONG Pages;
-
-    Pages = (ULONGLONG)EFI_SIZE_TO_PAGES((PageMap->MapSize + 1) * sizeof(LOADER_MEMORY_DESCRIPTOR));
-
-    Status = XtLdrProtocol->Memory.AllocatePages(Pages, &Address);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        return Status;
-    }
-
-    Status = XtLdrProtocol->Memory.MapVirtualMemory(PageMap, *VirtualAddress, (PVOID)Address, Pages, LoaderMemoryData);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        XtLdrProtocol->Memory.FreePages(Address, Pages);
-        return Status;
-    }
-
-    PVOID PhysicalBase = (PVOID)Address;
-
-    PLIST_ENTRY ListEntry;
-    ListEntry = PageMap->MemoryMap.Flink;
-    while(ListEntry != &PageMap->MemoryMap)
-    {
-        PXTBL_MEMORY_MAPPING MemoryMapping = CONTAIN_RECORD(ListEntry, XTBL_MEMORY_MAPPING, ListEntry);
-        PLOADER_MEMORY_DESCRIPTOR MemoryDescriptor = (PLOADER_MEMORY_DESCRIPTOR)Address;
-
-        MemoryDescriptor->MemoryType = MemoryMapping->MemoryType;
-        MemoryDescriptor->BasePage = (UINT_PTR)MemoryMapping->PhysicalAddress / EFI_PAGE_SIZE;
-        MemoryDescriptor->PageCount = MemoryMapping->NumberOfPages;
-
-        RtlInsertTailList(MemoryDescriptorList, &MemoryDescriptor->ListEntry);
-
-        Address = Address + sizeof(LOADER_MEMORY_DESCRIPTOR);
-        ListEntry = ListEntry->Flink;
-    }
-
-    XtLdrProtocol->Memory.PhysicalListToVirtual(PageMap, MemoryDescriptorList, PhysicalBase, *VirtualAddress);
-
-    return STATUS_EFI_SUCCESS;
-}
-
-XTCDECL
-EFI_STATUS
-XtGetSystemResourcesList(IN PXTBL_PAGE_MAPPING PageMap,
-                         IN PVOID *VirtualAddress,
-                         OUT PLIST_ENTRY SystemResourcesList)
-{
-    XTSTATUS Status;
-    EFI_HANDLE ProtocolHandle;
-    EFI_GUID AcpiGuid = XT_ACPI_PROTOCOL_GUID;
-    EFI_GUID FrameBufGuid = XT_FRAMEBUFFER_PROTOCOL_GUID;
-    PXTBL_ACPI_PROTOCOL AcpiProtocol;
-    PXTBL_FRAMEBUFFER_PROTOCOL FrameBufProtocol;
-    XTBL_FRAMEBUFFER_MODE_INFORMATION FbModeInfo;
-    EFI_PHYSICAL_ADDRESS FbAddress;
-    ULONG_PTR FbSize;
-    UINT FrameBufferPages;
-    PSYSTEM_RESOURCE_FRAMEBUFFER FrameBufferResource;
-    PSYSTEM_RESOURCE_ACPI AcpiResource;
-    ULONGLONG Pages;
-    EFI_PHYSICAL_ADDRESS Address;
-    PVOID PhysicalBase, VirtualBase;
-
-    Pages = (ULONGLONG)EFI_SIZE_TO_PAGES(sizeof(SYSTEM_RESOURCE_ACPI) + sizeof(SYSTEM_RESOURCE_FRAMEBUFFER));
-
-    Status = XtLdrProtocol->Memory.AllocatePages(Pages, &Address);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        return Status;
-    }
-    Status = XtLdrProtocol->Memory.MapVirtualMemory(PageMap, *VirtualAddress, (PVOID)Address, Pages, LoaderFirmwarePermanent);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        XtLdrProtocol->Memory.FreePages(Address, Pages);
-        return Status;
-    }
-
-    PhysicalBase = (PVOID)Address;
-    VirtualBase = *VirtualAddress;
-
-    /* Calculate next valid virtual address */
-    *VirtualAddress += (UINT_PTR)(Pages * EFI_PAGE_SIZE);
-
-    AcpiResource = (PSYSTEM_RESOURCE_ACPI)Address;
-
-    RtlZeroMemory(AcpiResource, sizeof(SYSTEM_RESOURCE_ACPI));
-
-    /* Load FrameBuffer protocol */
-    Status = XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID*)&AcpiProtocol, &AcpiGuid);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        return Status;
-    }
-
-    AcpiResource->Header.ResourceType = SystemResourceAcpi;
-    AcpiResource->Header.ResourceSize = sizeof(SYSTEM_RESOURCE_ACPI);
-
-    /* Get APIC and XSDP/RSDP addresses */
-    AcpiProtocol->GetApicBase(&AcpiResource->ApicBase);
-    AcpiProtocol->GetAcpiDescriptionPointer(&AcpiResource->Header.PhysicalAddress);
-
-    /* No need to map ACPI */
-    AcpiResource->Header.VirtualAddress = 0;
-
-    RtlInsertTailList(SystemResourcesList, &AcpiResource->Header.ListEntry);
-
-    /* Close FrameBuffer protocol */
-    XtLdrProtocol->Protocol.Close(ProtocolHandle, &FrameBufGuid);
-
-    Address = Address + sizeof(SYSTEM_RESOURCE_ACPI);
-
-    FrameBufferResource = (PSYSTEM_RESOURCE_FRAMEBUFFER)Address;
-
-    RtlZeroMemory(FrameBufferResource, sizeof(SYSTEM_RESOURCE_FRAMEBUFFER));
-
-    /* Load FrameBuffer protocol */
-    Status = XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID*)&FrameBufProtocol, &FrameBufGuid);
-    if(Status == STATUS_EFI_SUCCESS)
-    {
-        /* Get FrameBuffer information */
-        Status = FrameBufProtocol->GetDisplayInformation(&FbAddress, &FbSize, &FbModeInfo);
-        if(Status == STATUS_EFI_SUCCESS)
-        {
-
-            /* Store information about FrameBuffer device */
-            XtGetDisplayInformation(FrameBufferResource, &FbAddress, &FbSize, &FbModeInfo);
-        }
-    }
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        return Status;
-    }
-
-    /* Calculate pages needed to map framebuffer */
-    FrameBufferPages = EFI_SIZE_TO_PAGES(FbSize);
-
-    /* Rewrite framebuffer address by using virtual address */
-    FrameBufferResource->Header.VirtualAddress = *VirtualAddress;
-
-    /* Map frame buffer memory */
-    XtLdrProtocol->Memory.MapVirtualMemory(PageMap, FrameBufferResource->Header.VirtualAddress,
-                                           FrameBufferResource->Header.PhysicalAddress,
-                                           FrameBufferPages, LoaderFirmwarePermanent);
-
-    /* Close FrameBuffer protocol */
-    XtLdrProtocol->Protocol.Close(ProtocolHandle, &FrameBufGuid);
-
-    *VirtualAddress += (UINT_PTR)(FrameBufferPages * EFI_PAGE_SIZE);
-
-    RtlInsertTailList(SystemResourcesList, &FrameBufferResource->Header.ListEntry);
-
-    XtLdrProtocol->Memory.PhysicalListToVirtual(PageMap, SystemResourcesList, PhysicalBase, VirtualBase);
-
-    return STATUS_EFI_SUCCESS;
-}
 
 /**
  * Starts the operating system according to the provided parameters using XTOS boot protocol.
@@ -239,7 +29,7 @@ XtGetSystemResourcesList(IN PXTBL_PAGE_MAPPING PageMap,
  */
 XTCDECL
 EFI_STATUS
-XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
+Xtos::BootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
 {
     EFI_GUID PeCoffProtocolGuid = XT_PECOFF_IMAGE_PROTOCOL_GUID;
     EFI_HANDLE DiskHandle, ProtocolHandle;
@@ -251,7 +41,7 @@ XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     XtLdrProtocol->Debug.Print(L"XTOS boot protocol activated\n");
 
     /* Open the XT PE/COFF protocol */
-    Status = XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID *)&XtPeCoffProtocol, &PeCoffProtocolGuid);
+    Status = XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID *)&PeCoffProtocol, &PeCoffProtocolGuid);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to open loader protocol */
@@ -260,7 +50,7 @@ XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     }
 
     /* Check device path */
-    if(Parameters->DevicePath == NULL)
+    if(Parameters->DevicePath == NULLPTR)
     {
         /* No device path set */
         XtLdrProtocol->Debug.Print(L"ERROR: No device path provided, unable to boot system\n");
@@ -268,7 +58,7 @@ XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     }
 
     /* Check if system path is set */
-    if(Parameters->SystemPath != NULL)
+    if(Parameters->SystemPath != NULLPTR)
     {
         /* Make sure system path begins with backslash, the only separator supported by EFI */
         if(Parameters->SystemPath[0] == '/')
@@ -296,22 +86,22 @@ XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     {
         /* Fallback to '/ExectOS' by default */
         XtLdrProtocol->Debug.Print(L"WARNING: No system path set, falling back to defaults\n");
-        Parameters->SystemPath = L"\\ExectOS";
+        Parameters->SystemPath = (PWCHAR)L"\\ExectOS";
     }
 
     /* Check if kernel file is set */
-    if(Parameters->KernelFile == NULL)
+    if(Parameters->KernelFile == NULLPTR)
     {
         /* No kernel filename set, fallback to default */
         XtLdrProtocol->Debug.Print(L"WARNING: No kernel file specified, falling back to defaults\n");
-        Parameters->KernelFile = L"xtoskrnl.exe";
+        Parameters->KernelFile = (PWCHAR)L"xtoskrnl.exe";
     }
 
     /* Check if provided any kernel boot arguments */
-    if(Parameters->Parameters == NULL)
+    if(Parameters->Parameters == NULLPTR)
     {
         /* No argument supplied */
-        Parameters->Parameters = L"";
+        Parameters->Parameters = (PWCHAR)L"";
     }
 
     /* Print a debug message */
@@ -323,7 +113,7 @@ XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
                                Parameters->KernelFile, Parameters->Parameters);
 
     /* Open EFI volume */
-    Status = XtLdrProtocol->Disk.OpenVolume(NULL, &DiskHandle, &FsHandle);
+    Status = XtLdrProtocol->Disk.OpenVolume(Parameters->DevicePath, &DiskHandle, &FsHandle);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to open a volume */
@@ -332,7 +122,7 @@ XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
     }
 
     /* System path has to point to the boot directory */
-    RtlConcatenateWideString(Parameters->SystemPath, L"\\Boot", 0);
+    XtLdrProtocol->WideString.Concatenate(Parameters->SystemPath, (PWCHAR)L"\\Boot", 0);
 
     /* Open XTOS system boot directory */
     Status = FsHandle->Open(FsHandle, &BootDir, Parameters->SystemPath, EFI_FILE_MODE_READ, 0);
@@ -345,140 +135,220 @@ XtBootSystem(IN PXTBL_BOOT_PARAMETERS Parameters)
         XtLdrProtocol->Debug.Print(L"ERROR: System boot directory not found\n");
 
         /* Close volume */
-        XtLdrProtocol->Disk.CloseVolume(DiskHandle);
+        XtLdrProtocol->Disk.CloseVolume(&DiskHandle);
         return Status;
     }
     else if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to open directory */
         XtLdrProtocol->Debug.Print(L"ERROR: Unable to open system boot directory\n");
-        XtLdrProtocol->Disk.CloseVolume(DiskHandle);
+        XtLdrProtocol->Disk.CloseVolume(&DiskHandle);
         return Status;
     }
 
     /* Start boot sequence */
-    return XtpBootSequence(BootDir, Parameters);
+    return RunBootSequence(BootDir, Parameters);
 }
 
 /**
- * This routine initiates an XTOS boot sequence.
+ * Returns information about frame buffer in XTOS compatible format.
  *
- * @param BootDir
+ * @param InformationBlock
- *        An EFI handle to the XTOS boot directory.
+ *        A pointer to memory area containing XT structure where all the information will be stored.
  *
- * @param Parameters
+ * @return This routine does not return any value.
- *        Input parameters with detailed system configuration like boot device or kernel path.
- *
- * @return This routine returns a status code.
  *
  * @since XT 1.0
  */
 XTCDECL
-EFI_STATUS
+VOID
-XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
+Xtos::GetDisplayInformation(OUT PSYSTEM_RESOURCE_FRAMEBUFFER FrameBufferResource,
-                IN PXTBL_BOOT_PARAMETERS Parameters)
+                            IN PEFI_PHYSICAL_ADDRESS FrameBufferBase,
+                            IN PULONG_PTR FrameBufferSize,
+                            IN PXTBL_FRAMEBUFFER_MODE_INFORMATION FrameBufferModeInfo)
 {
-    EFI_GUID LoadedImageGuid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
+    /* Fill in frame buffer resource */
-    EFI_GUID FrameBufGuid = XT_FRAMEBUFFER_PROTOCOL_GUID;
+    FrameBufferResource->Header.PhysicalAddress = (PVOID)*FrameBufferBase;
-    PKERNEL_INITIALIZATION_BLOCK KernelParameters;
+    FrameBufferResource->Header.ResourceType = SystemResourceFrameBuffer;
-    PXTBL_FRAMEBUFFER_PROTOCOL FrameBufProtocol;
+    FrameBufferResource->Header.ResourceSize = sizeof(SYSTEM_RESOURCE_FRAMEBUFFER);
-    PPECOFF_IMAGE_CONTEXT ImageContext = NULL;
+    FrameBufferResource->BufferSize = *FrameBufferSize;
-    PEFI_LOADED_IMAGE_PROTOCOL ImageProtocol;
+    FrameBufferResource->Width = FrameBufferModeInfo->Width;
-    PVOID VirtualAddress, VirtualMemoryArea;
+    FrameBufferResource->Height = FrameBufferModeInfo->Height;
-    PXT_ENTRY_POINT KernelEntryPoint;
+    FrameBufferResource->Depth = FrameBufferModeInfo->Depth;
-    EFI_HANDLE ProtocolHandle;
+    FrameBufferResource->BitsPerPixel = FrameBufferModeInfo->BitsPerPixel;
-    EFI_STATUS Status;
+    FrameBufferResource->PixelsPerScanLine = FrameBufferModeInfo->PixelsPerScanLine;
-    XTBL_PAGE_MAPPING PageMap;
+    FrameBufferResource->Pitch = FrameBufferModeInfo->Pitch;
+    FrameBufferResource->Pixels.BlueShift = FrameBufferModeInfo->PixelInformation.BlueShift;
+    FrameBufferResource->Pixels.BlueSize = FrameBufferModeInfo->PixelInformation.BlueSize;
+    FrameBufferResource->Pixels.GreenShift = FrameBufferModeInfo->PixelInformation.GreenShift;
+    FrameBufferResource->Pixels.GreenSize = FrameBufferModeInfo->PixelInformation.GreenSize;
+    FrameBufferResource->Pixels.RedShift = FrameBufferModeInfo->PixelInformation.RedShift;
+    FrameBufferResource->Pixels.RedSize = FrameBufferModeInfo->PixelInformation.RedSize;
+    FrameBufferResource->Pixels.ReservedShift = FrameBufferModeInfo->PixelInformation.ReservedShift;
+    FrameBufferResource->Pixels.ReservedSize = FrameBufferModeInfo->PixelInformation.ReservedSize;
+}
 
-    /* Initialize XTOS startup sequence */
+XTCDECL
-    XtLdrProtocol->Debug.Print(L"Initializing XTOS startup sequence\n");
+EFI_STATUS
+Xtos::GetMemoryDescriptorList(IN PXTBL_PAGE_MAPPING PageMap,
+                              IN PVOID *VirtualAddress,
+                              OUT PLIST_ENTRY MemoryDescriptorList)
+{
+    EFI_PHYSICAL_ADDRESS Address;
+    EFI_STATUS Status;
+    ULONGLONG Pages;
+
+    Pages = (ULONGLONG)EFI_SIZE_TO_PAGES((PageMap->MapSize + 1) * sizeof(LOADER_MEMORY_DESCRIPTOR));
+
+    Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, Pages, &Address);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        return Status;
+    }
+
+    Status = XtLdrProtocol->Memory.MapVirtualMemory(PageMap, *VirtualAddress, (PVOID)Address, Pages, LoaderMemoryData);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        XtLdrProtocol->Memory.FreePages(Address, Pages);
+        return Status;
+    }
+
+    PVOID PhysicalBase = (PVOID)Address;
+
+    PLIST_ENTRY ListEntry;
+    ListEntry = PageMap->MemoryMap.Flink;
+    while(ListEntry != &PageMap->MemoryMap)
+    {
+        PXTBL_MEMORY_MAPPING MemoryMapping = CONTAIN_RECORD(ListEntry, XTBL_MEMORY_MAPPING, ListEntry);
+        PLOADER_MEMORY_DESCRIPTOR MemoryDescriptor = (PLOADER_MEMORY_DESCRIPTOR)Address;
+
+        MemoryDescriptor->MemoryType = MemoryMapping->MemoryType;
+        MemoryDescriptor->BasePage = (UINT_PTR)MemoryMapping->PhysicalAddress / EFI_PAGE_SIZE;
+        MemoryDescriptor->PageCount = MemoryMapping->NumberOfPages;
+
+        XtLdrProtocol->LinkedList.InsertTail(MemoryDescriptorList, &MemoryDescriptor->ListEntry);
+
+        Address = Address + sizeof(LOADER_MEMORY_DESCRIPTOR);
+        ListEntry = ListEntry->Flink;
+    }
+
+    XtLdrProtocol->Memory.PhysicalListToVirtual(PageMap, MemoryDescriptorList, PhysicalBase, *VirtualAddress);
+
+    return STATUS_EFI_SUCCESS;
+}
+
+XTCDECL
+EFI_STATUS
+Xtos::GetSystemResourcesList(IN PXTBL_PAGE_MAPPING PageMap,
+                             IN PVOID *VirtualAddress,
+                             OUT PLIST_ENTRY SystemResourcesList)
+{
+    XTSTATUS Status;
+    EFI_HANDLE ProtocolHandle;
+    EFI_GUID AcpiGuid = XT_ACPI_PROTOCOL_GUID;
+    EFI_GUID FrameBufGuid = XT_FRAMEBUFFER_PROTOCOL_GUID;
+    PXTBL_ACPI_PROTOCOL AcpiProtocol;
+    PXTBL_FRAMEBUFFER_PROTOCOL FrameBufProtocol;
+    XTBL_FRAMEBUFFER_MODE_INFORMATION FbModeInfo;
+    EFI_PHYSICAL_ADDRESS FbAddress;
+    ULONG_PTR FbSize;
+    UINT FrameBufferPages;
+    PSYSTEM_RESOURCE_FRAMEBUFFER FrameBufferResource;
+    PSYSTEM_RESOURCE_ACPI AcpiResource;
+    ULONGLONG Pages;
+    EFI_PHYSICAL_ADDRESS Address;
+    PVOID PhysicalBase, VirtualBase;
+
+    Pages = (ULONGLONG)EFI_SIZE_TO_PAGES(sizeof(SYSTEM_RESOURCE_ACPI) + sizeof(SYSTEM_RESOURCE_FRAMEBUFFER));
+
+    Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, Pages, &Address);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        return Status;
+    }
+    Status = XtLdrProtocol->Memory.MapVirtualMemory(PageMap, *VirtualAddress, (PVOID)Address, Pages, LoaderFirmwarePermanent);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        XtLdrProtocol->Memory.FreePages(Address, Pages);
+        return Status;
+    }
+
+    PhysicalBase = (PVOID)Address;
+    VirtualBase = *VirtualAddress;
+
+    /* Calculate next valid virtual address */
+    *VirtualAddress = (PUINT8)*VirtualAddress + (Pages * EFI_PAGE_SIZE);
+
+    AcpiResource = (PSYSTEM_RESOURCE_ACPI)Address;
+
+    XtLdrProtocol->Memory.ZeroMemory(AcpiResource, sizeof(SYSTEM_RESOURCE_ACPI));
+
+    /* Load FrameBuffer protocol */
+    Status = XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID*)&AcpiProtocol, &AcpiGuid);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        return Status;
+    }
+
+    AcpiResource->Header.ResourceType = SystemResourceAcpi;
+    AcpiResource->Header.ResourceSize = sizeof(SYSTEM_RESOURCE_ACPI);
+
+    /* Get APIC and XSDP/RSDP addresses */
+    AcpiProtocol->GetApicBase(&AcpiResource->ApicBase);
+    AcpiProtocol->GetAcpiDescriptionPointer(&AcpiResource->Header.PhysicalAddress);
+
+    /* No need to map ACPI */
+    AcpiResource->Header.VirtualAddress = 0;
+
+    XtLdrProtocol->LinkedList.InsertTail(SystemResourcesList, &AcpiResource->Header.ListEntry);
+
+    /* Close FrameBuffer protocol */
+    XtLdrProtocol->Protocol.Close(&ProtocolHandle, &FrameBufGuid);
+
+    Address = Address + sizeof(SYSTEM_RESOURCE_ACPI);
+
+    FrameBufferResource = (PSYSTEM_RESOURCE_FRAMEBUFFER)Address;
+
+    XtLdrProtocol->Memory.ZeroMemory(FrameBufferResource, sizeof(SYSTEM_RESOURCE_FRAMEBUFFER));
 
     /* Load FrameBuffer protocol */
     Status = XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID*)&FrameBufProtocol, &FrameBufGuid);
     if(Status == STATUS_EFI_SUCCESS)
     {
-        /* Make sure FrameBuffer is initialized */
+        /* Get FrameBuffer information */
-        FrameBufProtocol->Initialize();
+        Status = FrameBufProtocol->GetDisplayInformation(&FbAddress, &FbSize, &FbModeInfo);
-        FrameBufProtocol->SetScreenResolution(0, 0);
+        if(Status == STATUS_EFI_SUCCESS)
+        {
+
+            /* Store information about FrameBuffer device */
+            GetDisplayInformation(FrameBufferResource, &FbAddress, &FbSize, &FbModeInfo);
         }
+    }
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        return Status;
+    }
+
+    /* Calculate pages needed to map framebuffer */
+    FrameBufferPages = EFI_SIZE_TO_PAGES(FbSize);
+
+    /* Rewrite framebuffer address by using virtual address */
+    FrameBufferResource->Header.VirtualAddress = *VirtualAddress;
+
+    /* Map frame buffer memory */
+    XtLdrProtocol->Memory.MapVirtualMemory(PageMap, FrameBufferResource->Header.VirtualAddress,
+                                           FrameBufferResource->Header.PhysicalAddress,
+                                           FrameBufferPages, LoaderFirmwarePermanent);
 
     /* Close FrameBuffer protocol */
-    XtLdrProtocol->Protocol.Close(ProtocolHandle, &FrameBufGuid);
+    XtLdrProtocol->Protocol.Close(&ProtocolHandle, &FrameBufGuid);
 
-    /* Set base virtual memory area for the kernel mappings */
+    *VirtualAddress = (PUINT8)*VirtualAddress + (FrameBufferPages * EFI_PAGE_SIZE);
-    VirtualMemoryArea = (PVOID)KSEG0_BASE;
-    VirtualAddress = (PVOID)(KSEG0_BASE + KSEG0_KERNEL_BASE);
 
-    /* Initialize virtual memory mappings */
+    XtLdrProtocol->LinkedList.InsertTail(SystemResourcesList, &FrameBufferResource->Header.ListEntry);
-    XtLdrProtocol->Memory.InitializePageMap(&PageMap, 3, Size4K);
 
-    Status = XtLdrProtocol->Memory.MapEfiMemory(&PageMap, &VirtualMemoryArea, NULL);
+    XtLdrProtocol->Memory.PhysicalListToVirtual(PageMap, SystemResourcesList, PhysicalBase, VirtualBase);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        return Status;
-    }
 
-    /* Load the kernel */
-    Status = XtpLoadModule(BootDir, Parameters->KernelFile, VirtualAddress, LoaderSystemCode, &ImageContext);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to load the kernel */
-        return Status;
-    }
-
-    /* Add kernel image memory mapping */
-    Status = XtLdrProtocol->Memory.MapVirtualMemory(&PageMap, ImageContext->VirtualAddress,
-                                                    ImageContext->PhysicalAddress, ImageContext->ImagePages, 0);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        return Status;
-    }
-
-    /* Set next valid virtual address right after the kernel */
-    VirtualAddress += ImageContext->ImagePages * EFI_PAGE_SIZE;
-
-    /* Find and map APIC base address */
-    Status = XtpInitializeApicBase(&PageMap);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to setup kernel initialization block */
-        XtLdrProtocol->Debug.Print(L"Failed to initialize APIC (Status Code: 0x%zX)\n", Status);
-        return Status;
-    }
-
-    /* Store virtual address of kernel initialization block for future kernel call */
-    KernelParameters = (PKERNEL_INITIALIZATION_BLOCK)VirtualAddress;
-
-    /* Setup and map kernel initialization block */
-    Status = XtpInitializeLoaderBlock(&PageMap, &VirtualAddress, Parameters);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to setup kernel initialization block */
-        XtLdrProtocol->Debug.Print(L"Failed to setup kernel initialization block (Status Code: 0x%zX)\n", Status);
-        return Status;
-    }
-
-    /* Get kernel entry point */
-    XtPeCoffProtocol->GetEntryPoint(ImageContext, (PVOID)&KernelEntryPoint);
-
-    /* Close boot directory handle */
-    BootDir->Close(BootDir);
-
-    /* Enable paging */
-    XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID*)&ImageProtocol, &LoadedImageGuid);
-    Status = XtEnablePaging(&PageMap);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to enable paging */
-        XtLdrProtocol->Debug.Print(L"Failed to enable paging (Status Code: 0x%zX)\n", Status);
-        return Status;
-    }
-
-    /* Call XTOS kernel */
-    XtLdrProtocol->Debug.Print(L"Booting the XTOS kernel\n");
-    KernelEntryPoint(KernelParameters);
-
-    /* Return success */
     return STATUS_EFI_SUCCESS;
 }
 
@@ -494,7 +364,7 @@ XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
  */
 XTCDECL
 EFI_STATUS
-XtpInitializeApicBase(IN PXTBL_PAGE_MAPPING PageMap)
+Xtos::InitializeApicBase(IN PXTBL_PAGE_MAPPING PageMap)
 {
     EFI_GUID AcpiGuid = XT_ACPI_PROTOCOL_GUID;
     PXTBL_ACPI_PROTOCOL AcpiProtocol;
@@ -538,21 +408,24 @@ XtpInitializeApicBase(IN PXTBL_PAGE_MAPPING PageMap)
  */
 XTCDECL
 EFI_STATUS
-XtpInitializeLoaderBlock(IN PXTBL_PAGE_MAPPING PageMap,
+Xtos::InitializeLoaderBlock(IN PXTBL_PAGE_MAPPING PageMap,
                             IN PVOID *VirtualAddress,
                             IN PXTBL_BOOT_PARAMETERS Parameters)
 {
     PKERNEL_INITIALIZATION_BLOCK LoaderBlock;
     EFI_PHYSICAL_ADDRESS Address;
-    // PVOID RuntimeServices;
     EFI_STATUS Status;
     UINT BlockPages;
+    UINT ParametersSize;
+
+    /* Calculate size of parameters */
+    ParametersSize = (XtLdrProtocol->WideString.Length(Parameters->Parameters, 0) + 1) * sizeof(WCHAR);
 
     /* Calculate number of pages needed for initialization block */
-    BlockPages = EFI_SIZE_TO_PAGES(sizeof(KERNEL_INITIALIZATION_BLOCK));
+    BlockPages = EFI_SIZE_TO_PAGES(sizeof(KERNEL_INITIALIZATION_BLOCK) + ParametersSize);
 
     /* Allocate memory for kernel initialization block */
-    Status = XtLdrProtocol->Memory.AllocatePages(BlockPages, &Address);
+    Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, BlockPages, &Address);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Memory allocation failure */
@@ -561,7 +434,7 @@ XtpInitializeLoaderBlock(IN PXTBL_PAGE_MAPPING PageMap,
 
     /* Initialize and zero-fill kernel initialization block */
     LoaderBlock = (PKERNEL_INITIALIZATION_BLOCK)(UINT_PTR)Address;
-    RtlZeroMemory(LoaderBlock, sizeof(KERNEL_INITIALIZATION_BLOCK));
+    XtLdrProtocol->Memory.ZeroMemory(LoaderBlock, sizeof(KERNEL_INITIALIZATION_BLOCK) + ParametersSize);
 
     /* Set basic loader block properties */
     LoaderBlock->BlockSize = sizeof(KERNEL_INITIALIZATION_BLOCK);
@@ -569,48 +442,63 @@ XtpInitializeLoaderBlock(IN PXTBL_PAGE_MAPPING PageMap,
     LoaderBlock->ProtocolVersion = BOOT_PROTOCOL_VERSION;
 
     /* Set LoaderInformation block properties */
-    LoaderBlock->LoaderInformation.DbgPrint = XtLdrProtocol->Debug.Print;
+    LoaderBlock->LoaderInformation.DbgPrint = (PVOID)XtLdrProtocol->Debug.Print;
 
-    /* Store page map level */
-    LoaderBlock->LoaderInformation.PageMapLevel = 3;
-
-    /* Attempt to find virtual address of the EFI Runtime Services */
-    // Status = XtLdrProtocol->GetVirtualAddress(MemoryMappings, &EfiSystemTable->RuntimeServices->Hdr, &RuntimeServices);
-    // if(Status == STATUS_EFI_SUCCESS)
-    // {
     /* Set FirmwareInformation block properties */
     LoaderBlock->FirmwareInformation.FirmwareType = SystemFirmwareEfi;
-        LoaderBlock->FirmwareInformation.EfiFirmware.EfiVersion = 0; //EfiSystemTable->Hdr.Revision;
+    // LoaderBlock->FirmwareInformation.EfiFirmware.EfiVersion = EfiSystemTable->Hdr.Revision;
-        LoaderBlock->FirmwareInformation.EfiFirmware.EfiRuntimeServices = NULL;
+    LoaderBlock->FirmwareInformation.EfiFirmware.EfiRuntimeServices = NULLPTR;
-    // }
-    // else
-    // {
-    //     /* Set invalid firmware type to indicate that kernel cannot rely on FirmwareInformation block */
-    //     LoaderBlock->FirmwareInformation.FirmwareType = SystemFirmwareInvalid;
-    // }
 
     /* Copy parameters to kernel initialization block */
-    RtlCopyMemory(LoaderBlock->KernelParameters, Parameters->Parameters,
+    LoaderBlock->KernelParameters = (PWCHAR)((UINT_PTR)*VirtualAddress + sizeof(KERNEL_INITIALIZATION_BLOCK));
-                  (RtlWideStringLength(Parameters->Parameters, 0) + 1) * sizeof(WCHAR));
+    XtLdrProtocol->Memory.CopyMemory((PVOID)((UINT_PTR)LoaderBlock + sizeof(KERNEL_INITIALIZATION_BLOCK)),
+                  Parameters->Parameters,
+                  ParametersSize);
 
     /* Map kernel initialization block */
     XtLdrProtocol->Memory.MapVirtualMemory(PageMap, *VirtualAddress, (PVOID)LoaderBlock,
                                            BlockPages, LoaderSystemBlock);
 
     /* Calculate next valid virtual address */
-    *VirtualAddress += (UINT_PTR)(BlockPages * EFI_PAGE_SIZE);
+    *VirtualAddress = (PUINT8)*VirtualAddress + (BlockPages * EFI_PAGE_SIZE);
 
-    RtlInitializeListHead(&LoaderBlock->SystemResourcesListHead);
+    XtLdrProtocol->LinkedList.InitializeHead(&LoaderBlock->SystemResourcesListHead);
-    XtGetSystemResourcesList(PageMap, VirtualAddress, &LoaderBlock->SystemResourcesListHead);
+    GetSystemResourcesList(PageMap, VirtualAddress, &LoaderBlock->SystemResourcesListHead);
 
     /* Initialize memory descriptor list */
-    RtlInitializeListHead(&LoaderBlock->MemoryDescriptorListHead);
+    XtLdrProtocol->LinkedList.InitializeHead(&LoaderBlock->MemoryDescriptorListHead);
-    XtGetMemoryDescriptorList(PageMap, VirtualAddress, &LoaderBlock->MemoryDescriptorListHead);
+    GetMemoryDescriptorList(PageMap, VirtualAddress, &LoaderBlock->MemoryDescriptorListHead);
 
     /* Return success */
     return STATUS_EFI_SUCCESS;
 }
 
+XTCDECL
+EFI_STATUS
+Xtos::InitializeModule(IN EFI_HANDLE ImageHandle,
+                       IN PEFI_SYSTEM_TABLE SystemTable)
+{
+    EFI_GUID Guid = XT_XTOS_BOOT_PROTOCOL_GUID;
+    EFI_STATUS Status;
+
+    /* Open the XTLDR protocol */
+    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to open loader protocol */
+        return STATUS_EFI_PROTOCOL_ERROR;
+    }
+
+    /* Set routines available via XTOS boot protocol */
+    BootProtocol.BootSystem = Xtos::BootSystem;
+
+    /* Register XTOS boot protocol */
+    XtLdrProtocol->Boot.RegisterProtocol(L"XTOS", &Guid);
+
+    /* Install XTOS protocol */
+    return XtLdrProtocol->Protocol.Install(&BootProtocol, &Guid);
+}
+
 /**
  * Loads XTOS PE/COFF module.
  *
@@ -635,7 +523,7 @@ XtpInitializeLoaderBlock(IN PXTBL_PAGE_MAPPING PageMap,
  */
 XTCDECL
 EFI_STATUS
-XtpLoadModule(IN PEFI_FILE_HANDLE SystemDir,
+Xtos::LoadModule(IN PEFI_FILE_HANDLE SystemDir,
                  IN PWCHAR FileName,
                  IN PVOID VirtualAddress,
                  IN LOADER_MEMORY_TYPE MemoryType,
@@ -658,7 +546,7 @@ XtpLoadModule(IN PEFI_FILE_HANDLE SystemDir,
     }
 
     /* Load the PE/COFF image file */
-    Status = XtPeCoffProtocol->LoadImage(ModuleHandle, MemoryType, VirtualAddress, (PVOID)ImageContext);
+    Status = PeCoffProtocol->LoadImage(ModuleHandle, MemoryType, VirtualAddress, (PVOID*)ImageContext);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Unable to load the file */
@@ -670,7 +558,7 @@ XtpLoadModule(IN PEFI_FILE_HANDLE SystemDir,
     ModuleHandle->Close(ModuleHandle);
 
     /* Check PE/COFF image machine type compatibility */
-    XtPeCoffProtocol->GetMachineType(*ImageContext, &MachineType);
+    PeCoffProtocol->GetMachineType(*ImageContext, &MachineType);
     if(MachineType != _ARCH_IMAGE_MACHINE_TYPE)
     {
         /* Machine type mismatch */
@@ -679,7 +567,7 @@ XtpLoadModule(IN PEFI_FILE_HANDLE SystemDir,
     }
 
     /* Check PE/COFF image subsystem */
-    XtPeCoffProtocol->GetSubSystem(*ImageContext, &SubSystem);
+    PeCoffProtocol->GetSubSystem(*ImageContext, &SubSystem);
     if(SubSystem != PECOFF_IMAGE_SUBSYSTEM_XT_NATIVE_KERNEL &&
        SubSystem != PECOFF_IMAGE_SUBSYSTEM_XT_NATIVE_APPLICATION &&
        SubSystem != PECOFF_IMAGE_SUBSYSTEM_XT_NATIVE_DRIVER)
@@ -695,6 +583,129 @@ XtpLoadModule(IN PEFI_FILE_HANDLE SystemDir,
     return STATUS_EFI_SUCCESS;
 }
 
+/**
+ * This routine initiates an XTOS boot sequence.
+ *
+ * @param BootDir
+ *        An EFI handle to the XTOS boot directory.
+ *
+ * @param Parameters
+ *        Input parameters with detailed system configuration like boot device or kernel path.
+ *
+ * @return This routine returns a status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+Xtos::RunBootSequence(IN PEFI_FILE_HANDLE BootDir,
+                      IN PXTBL_BOOT_PARAMETERS Parameters)
+{
+    EFI_GUID LoadedImageGuid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
+    EFI_GUID FrameBufGuid = XT_FRAMEBUFFER_PROTOCOL_GUID;
+    PKERNEL_INITIALIZATION_BLOCK KernelParameters;
+    PXTBL_FRAMEBUFFER_PROTOCOL FrameBufProtocol;
+    PPECOFF_IMAGE_CONTEXT ImageContext = NULLPTR;
+    PEFI_LOADED_IMAGE_PROTOCOL ImageProtocol;
+    PVOID VirtualAddress, VirtualMemoryArea;
+    PXT_ENTRY_POINT KernelEntryPoint;
+    EFI_HANDLE ProtocolHandle;
+    EFI_STATUS Status;
+    XTBL_PAGE_MAPPING PageMap;
+
+    /* Initialize XTOS startup sequence */
+    XtLdrProtocol->Debug.Print(L"Initializing XTOS startup sequence\n");
+
+    /* Load FrameBuffer protocol */
+    Status = XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID*)&FrameBufProtocol, &FrameBufGuid);
+    if(Status == STATUS_EFI_SUCCESS)
+    {
+        /* Make sure FrameBuffer is initialized */
+        FrameBufProtocol->Initialize();
+        FrameBufProtocol->SetScreenResolution(0, 0);
+    }
+
+    /* Close FrameBuffer protocol */
+    XtLdrProtocol->Protocol.Close(&ProtocolHandle, &FrameBufGuid);
+
+    /* Set base virtual memory area for the kernel mappings */
+    VirtualMemoryArea = (PVOID)KSEG0_BASE;
+    VirtualAddress = (PVOID)(KSEG0_BASE + KSEG0_KERNEL_BASE);
+
+    /* Initialize virtual memory mappings */
+    XtLdrProtocol->Memory.InitializePageMap(&PageMap, DeterminePagingLevel(Parameters->Parameters), Size4K);
+
+    Status = XtLdrProtocol->Memory.MapEfiMemory(&PageMap, &VirtualMemoryArea, NULLPTR);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        return Status;
+    }
+
+    /* Load the kernel */
+    Status = LoadModule(BootDir, Parameters->KernelFile, VirtualAddress, LoaderSystemCode, &ImageContext);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to load the kernel */
+        return Status;
+    }
+
+    /* Add kernel image memory mapping */
+    Status = XtLdrProtocol->Memory.MapVirtualMemory(&PageMap, ImageContext->VirtualAddress,
+                                                    ImageContext->PhysicalAddress, ImageContext->ImagePages,
+                                                    LoaderSystemCode);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        return Status;
+    }
+
+    /* Set next valid virtual address right after the kernel */
+    VirtualAddress = (PUINT8)VirtualAddress + (ImageContext->ImagePages * EFI_PAGE_SIZE);
+
+    /* Find and map APIC base address */
+    Status = InitializeApicBase(&PageMap);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to setup kernel initialization block */
+        XtLdrProtocol->Debug.Print(L"Failed to initialize APIC (Status Code: 0x%zX)\n", Status);
+        return Status;
+    }
+
+    /* Store virtual address of kernel initialization block for future kernel call */
+    KernelParameters = (PKERNEL_INITIALIZATION_BLOCK)VirtualAddress;
+
+    /* Setup and map kernel initialization block */
+    Status = InitializeLoaderBlock(&PageMap, &VirtualAddress, Parameters);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to setup kernel initialization block */
+        XtLdrProtocol->Debug.Print(L"Failed to setup kernel initialization block (Status Code: 0x%zX)\n", Status);
+        return Status;
+    }
+
+    /* Get kernel entry point */
+    PeCoffProtocol->GetEntryPoint(ImageContext, (PVOID*)&KernelEntryPoint);
+
+    /* Close boot directory handle */
+    BootDir->Close(BootDir);
+
+    /* Enable paging */
+    XtLdrProtocol->Protocol.Open(&ProtocolHandle, (PVOID*)&ImageProtocol, &LoadedImageGuid);
+    Status = EnablePaging(&PageMap);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to enable paging */
+        XtLdrProtocol->Debug.Print(L"Failed to enable paging (Status Code: 0x%zX)\n", Status);
+        return Status;
+    }
+
+    /* Call XTOS kernel */
+    XtLdrProtocol->Debug.Print(L"Booting the XTOS kernel\n");
+    KernelEntryPoint(KernelParameters);
+
+    /* Return success */
+    return STATUS_EFI_SUCCESS;
+}
+
 /**
  * This routine is the entry point of the XT EFI boot loader module.
  *
@@ -713,23 +724,6 @@ EFI_STATUS
 XtLdrModuleMain(IN EFI_HANDLE ImageHandle,
                 IN PEFI_SYSTEM_TABLE SystemTable)
 {
-    EFI_GUID Guid = XT_XTOS_BOOT_PROTOCOL_GUID;
+    /* Initialize XTOS module */
-    EFI_STATUS Status;
+    return Xtos::InitializeModule(ImageHandle, SystemTable);
-
-    /* Open the XTLDR protocol */
-    Status = BlGetXtLdrProtocol(SystemTable, ImageHandle, &XtLdrProtocol);
-    if(Status != STATUS_EFI_SUCCESS)
-    {
-        /* Failed to open loader protocol */
-        return STATUS_EFI_PROTOCOL_ERROR;
-    }
-
-    /* Set routines available via XTOS boot protocol */
-    XtBootProtocol.BootSystem = XtBootSystem;
-
-    /* Register XTOS boot protocol */
-    XtLdrProtocol->Boot.RegisterProtocol(L"XTOS", &Guid);
-
-    /* Install XTOS protocol */
-    return XtLdrProtocol->Protocol.Install(&XtBootProtocol, &Guid);
 }

boot/xtldr/shell.cc

@@ -1,12 +1,12 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/shell.c
+ * FILE:            xtldr/shell.cc
  * DESCRIPTION:     XT Boot Loader shell
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
 
-#include <xtldr.h>
+#include <xtldr.hh>
 
 
 /**
@@ -18,13 +18,13 @@
  */
 XTCDECL
 VOID
-BlStartLoaderShell()
+Shell::StartLoaderShell()
 {
     /* Initialize console */
-    BlInitializeConsole();
+    Console::InitializeConsole();
 
     /* Print prompt */
-    BlpPrintShellPrompt();
+    PrintPrompt();
     for(;;);
 }
 
@@ -37,14 +37,14 @@ BlStartLoaderShell()
  */
 XTCDECL
 VOID
-BlpPrintShellPrompt()
+Shell::PrintPrompt()
 {
     /* Set prompt color */
-    BlSetConsoleAttributes(EFI_TEXT_BGCOLOR_BLACK | EFI_TEXT_FGCOLOR_YELLOW);
+    Console::SetAttributes(EFI_TEXT_BGCOLOR_BLACK | EFI_TEXT_FGCOLOR_YELLOW);
 
     /* Print prompt */
-    BlConsolePrint(L"XTLDR> ");
+    Console::Print(L"XTLDR> ");
 
     /* Reset standard shell colors */
-    BlSetConsoleAttributes(EFI_TEXT_BGCOLOR_BLACK | EFI_TEXT_FGCOLOR_LIGHTGRAY);
+    Console::SetAttributes(EFI_TEXT_BGCOLOR_BLACK | EFI_TEXT_FGCOLOR_LIGHTGRAY);
 }

boot/xtldr/volume.cc

@@ -1,12 +1,13 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            xtldr/volume.c
+ * FILE:            xtldr/volume.cc
  * DESCRIPTION:     XTLDR volume support
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ *                  Aiken Harris <harraiken91@gmail.com>
  */
 
-#include <xtldr.h>
+#include <xtldr.hh>
 
 
 /**
@@ -21,15 +22,16 @@
  */
 XTCDECL
 EFI_STATUS
-BlCloseVolume(IN PEFI_HANDLE VolumeHandle)
+Volume::CloseVolume(IN PEFI_HANDLE VolumeHandle)
 {
     EFI_GUID LIPGuid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
 
     /* Make sure a handle specified */
-    if(VolumeHandle != NULL)
+    if(VolumeHandle != NULLPTR)
     {
         /* Close a handle */
-        return EfiSystemTable->BootServices->CloseProtocol(VolumeHandle, &LIPGuid, EfiImageHandle, NULL);
+        return XtLoader::GetEfiSystemTable()->BootServices->CloseProtocol(VolumeHandle, &LIPGuid,
+                                                                          XtLoader::GetEfiImageHandle(), NULLPTR);
     }
 
     /* Return success */
@@ -45,10 +47,14 @@ BlCloseVolume(IN PEFI_HANDLE VolumeHandle)
  */
 XTCDECL
 EFI_STATUS
-BlEnumerateBlockDevices()
+Volume::EnumerateBlockDevices()
 {
-    PEFI_DEVICE_PATH_PROTOCOL LastNode = NULL;
+    EFI_GUID LoadedImageProtocolGuid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
-    PEFI_BLOCK_DEVICE_DATA ParentNode = NULL;
+    EFI_GUID BlockIoGuid = EFI_BLOCK_IO_PROTOCOL_GUID;
+    EFI_HANDLE BootDeviceHandle = NULLPTR, DeviceHandle = NULLPTR;
+    EFI_LOADED_IMAGE_PROTOCOL* LoadedImage;
+    PEFI_DEVICE_PATH_PROTOCOL DevicePath = NULLPTR, LastNode = NULLPTR;
+    PEFI_BLOCK_DEVICE_DATA ParentNode = NULLPTR;
     PEFI_BLOCK_DEVICE_DATA BlockDeviceData;
     PEFI_BLOCK_DEVICE BlockDevice;
     LIST_ENTRY BlockDevices;
@@ -62,15 +68,28 @@ BlEnumerateBlockDevices()
     USHORT DriveType;
     ULONG CDCount = 0, FDCount = 0, HDCount = 0, RDCount = 0;
 
-    /* Initialize list entries */
+    /* Get the device handle of the image that is running */
-    RtlInitializeListHead(&BlockDevices);
+    Status = XtLoader::GetEfiSystemTable()->BootServices->HandleProtocol(XtLoader::GetEfiImageHandle(), &LoadedImageProtocolGuid,
-    RtlInitializeListHead(&EfiBlockDevices);
+                                                                         (VOID**)&LoadedImage);
-
-    /* Discover EFI block devices and store them in linked list */
-    Status = BlpDiscoverEfiBlockDevices(&BlockDevices);
     if(Status != STATUS_EFI_SUCCESS)
     {
-        BlDebugPrint(L"ERROR: Failed to discover EFI block devices (Status Code: 0x%zX)\n", Status);
+        /* Failed to get boot device handle */
+        Debug::Print(L"ERROR: Failed to get boot device handle (Status Code: 0x%zX)\n", Status);
+        return Status;
+    }
+
+    /* Save the boot device handle */
+    BootDeviceHandle = LoadedImage->DeviceHandle;
+
+    /* Initialize list entries */
+    RTL::LinkedList::InitializeListHead(&BlockDevices);
+    RTL::LinkedList::InitializeListHead(&EfiBlockDevices);
+
+    /* Discover EFI block devices and store them in linked list */
+    Status = DiscoverEfiBlockDevices(&BlockDevices);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        Debug::Print(L"ERROR: Failed to discover EFI block devices (Status Code: 0x%zX)\n", Status);
         return Status;
     }
 
@@ -78,21 +97,42 @@ BlEnumerateBlockDevices()
     ListEntry = BlockDevices.Flink;
     while(ListEntry != &BlockDevices)
     {
-        /* Take block device from the list */
+        /* Get data for the next discovered device. */
         BlockDeviceData = CONTAIN_RECORD(ListEntry, EFI_BLOCK_DEVICE_DATA, ListEntry);
+        PartitionGuid = NULLPTR;
 
         /* Find last node */
-        Status = BlpFindLastBlockDeviceNode(BlockDeviceData->DevicePath, &LastNode);
+        Status = FindLastBlockDeviceNode(BlockDeviceData->DevicePath, &LastNode);
         if(Status != STATUS_EFI_SUCCESS)
         {
-            BlDebugPrint(L"WARNING: Block device last node not found\n");
+            /* Skip this device if its last node cannot be found, as it is required for classification */
+            Debug::Print(L"WARNING: Block device last node not found\n");
             ListEntry = ListEntry->Flink;
             continue;
         }
 
-        /* Set drive type to 'unknown' by default */
+        /* Initialize drive type before attempting to classify the device */
         DriveType = XTBL_BOOT_DEVICE_UNKNOWN;
 
+        /* Locate the parent for this block device to ensure it is not an orphaned entry */
+        if(!FindParentBlockDevice(&BlockDevices, BlockDeviceData, &ParentNode))
+        {
+            /* Orphaned device found. Log a warning and skip it as it cannot be properly classified */
+            Debug::Print(L"WARNING: No parent device found, skipping orphaned media device path\n");
+            ListEntry = ListEntry->Flink;
+            continue;
+        }
+
+        /* Verify that media information is available, as some devices may not report it */
+        if(!BlockDeviceData->BlockIo->Media)
+        {
+            /* The device is unusable without media info, log a warning and skip it */
+            Debug::Print(L"WARNING: Block device is missing media information\n");
+            ListEntry = ListEntry->Flink;
+            continue;
+        }
+        Media = BlockDeviceData->BlockIo->Media;
+
         /* Check last node type */
         if(LastNode->Type == EFI_ACPI_DEVICE_PATH && LastNode->SubType == EFI_ACPI_DP)
         {
@@ -101,87 +141,95 @@ BlEnumerateBlockDevices()
             if(AcpiDevice->HID == 0x60441D0 || AcpiDevice->HID == 0x70041D0 || AcpiDevice->HID == 0x70141D1)
             {
                 /* Floppy drive found */
-                Media = BlockDeviceData->BlockIo->Media;
                 DriveType = XTBL_BOOT_DEVICE_FLOPPY;
                 DriveNumber = FDCount++;
                 PartitionNumber = 0;
 
                 /* Print debug message */
-                BlDebugPrint(L"Found Floppy Disk (DiskNumber: %lu, MediaPresent: %u, RO: %u)\n",
+                Debug::Print(L"Found Floppy Disk (DiskNumber: %lu, MediaPresent: %u, RO: %u)\n",
                              DriveNumber, Media->MediaPresent, Media->ReadOnly);
             }
         }
-        else if(LastNode->Type == EFI_MEDIA_DEVICE_PATH)
+        else if((LastNode->Type == EFI_MEDIA_DEVICE_PATH && LastNode->SubType == EFI_MEDIA_CDROM_DP) ||
-        {
+                (LastNode->Type == EFI_MESSAGING_DEVICE_PATH &&
-            /* Media device path found */
+                 (LastNode->SubType == EFI_MESSAGING_ATAPI_DP || LastNode->SubType == EFI_MESSAGING_SATA_DP) &&
-            if(LastNode->SubType == EFI_MEDIA_CDROM_DP)
+                 Media->MediaPresent && Media->RemovableMedia))
         {
             /* Optical drive found */
-                Media = BlockDeviceData->BlockIo->Media;
             DriveType = XTBL_BOOT_DEVICE_CDROM;
             DriveNumber = CDCount++;
             PartitionNumber = 0;
 
             /* Print debug message */
-                BlDebugPrint(L"Found CD-ROM drive (DriveNumber: %lu, MediaPresent: %u, RemovableMedia: %u, RO: %u)\n",
+            Debug::Print(L"Found CD-ROM drive (DriveNumber: %lu, MediaPresent: %u, RemovableMedia: %u, RO: %u)\n",
                          DriveNumber, Media->MediaPresent, Media->RemovableMedia, Media->ReadOnly);
         }
-            else if(LastNode->SubType == EFI_MEDIA_HARDDRIVE_DP)
+        else if(LastNode->Type == EFI_MEDIA_DEVICE_PATH && LastNode->SubType == EFI_MEDIA_HARDDRIVE_DP)
         {
             /* Hard disk partition found */
-                Media = BlockDeviceData->BlockIo->Media;
             HDPath = (PEFI_HARDDRIVE_DEVICE_PATH)LastNode;
             DriveType = XTBL_BOOT_DEVICE_HARDDISK;
             DriveNumber = (HDPath->PartitionNumber == 1) ? HDCount++ : HDCount - 1;
             PartitionNumber = HDPath->PartitionNumber;
             PartitionGuid = (PEFI_GUID)HDPath->Signature;
 
-                /* Print debug message */
+            /* Check if this is the EFI System Partition (ESP) */
-                BlDebugPrint(L"Found Hard Disk partition (DiskNumber: %lu, PartNumber: %lu, "
+            if(BootDeviceHandle != NULLPTR)
-                           L"MBRType: %u, GUID: {%V}, PartSize: %uB)\n",
+            {
-                           DriveNumber, PartitionNumber, HDPath->MBRType,
+                /* Allocate memory for device path */
-                           PartitionGuid, HDPath->PartitionSize * Media->BlockSize);
+                DevicePath = DuplicateDevicePath(BlockDeviceData->DevicePath);
+                if(DevicePath != NULLPTR)
+                {
+                    /* Check if this is the boot device */
+                    Status = XtLoader::GetEfiSystemTable()->BootServices->LocateDevicePath(&BlockIoGuid, &DevicePath,
+                                                                                           &DeviceHandle);
+                    if(Status == STATUS_EFI_SUCCESS && DeviceHandle == BootDeviceHandle)
+                    {
+                        /* Mark partition as ESP */
+                        DriveType |= XTBL_BOOT_DEVICE_ESP;
                     }
-            else if(LastNode->SubType == EFI_MEDIA_RAMDISK_DP)
+                }
+            }
+
+            /* Print debug message */
+            Debug::Print(L"Found Hard Disk partition (DiskNumber: %lu, PartNumber: %lu, "
+                         L"MBRType: %u, GUID: {%V}, PartSize: %lluB) %S\n",
+                         DriveNumber, PartitionNumber, HDPath->MBRType,
+                         PartitionGuid, HDPath->PartitionSize * Media->BlockSize,
+                         (DriveType & XTBL_BOOT_DEVICE_ESP) ? L"(ESP)" : L"");
+        }
+        else if(LastNode->Type == EFI_MEDIA_DEVICE_PATH && LastNode->SubType == EFI_MEDIA_RAMDISK_DP)
         {
             /* RAM disk found */
-                Media = BlockDeviceData->BlockIo->Media;
             DriveType = XTBL_BOOT_DEVICE_RAMDISK;
             DriveNumber = RDCount++;
             PartitionNumber = 0;
 
             /* Print debug message */
-                BlDebugPrint(L"Found RAM Disk (DiskNumber: %lu, MediaPresent: %u)\n",
+            Debug::Print(L"Found RAM Disk (DiskNumber: %lu, MediaPresent: %u)\n",
                          DriveNumber, Media->MediaPresent);
         }
 
-            if(!BlpFindParentBlockDevice(&BlockDevices, BlockDeviceData, ParentNode))
-            {
-                BlDebugPrint(L"WARNING: No parent device found, skipping orphaned media device path\n");
-                continue;
-            }
-        }
-
         /* Make sure the device found has valid type set */
         if(DriveType != XTBL_BOOT_DEVICE_UNKNOWN)
         {
             /* Allocate memory for block device */
-            Status = BlAllocateMemoryPool(sizeof(EFI_BLOCK_DEVICE), (PVOID *)&BlockDevice);
+            Status = Memory::AllocatePool(sizeof(EFI_BLOCK_DEVICE), (PVOID *)&BlockDevice);
             if(Status != STATUS_EFI_SUCCESS)
             {
-                BlDebugPrint(L"ERROR: Failed to allocate memory pool for block device (Status Code: 0x%zX)\n", Status);
+                Debug::Print(L"ERROR: Failed to allocate memory pool for block device (Status Code: 0x%zX)\n", Status);
                 return STATUS_EFI_OUT_OF_RESOURCES;
             }
 
             /* Initialize block device */
-            BlockDevice->DevicePath = BlpDuplicateDevicePath(BlockDeviceData->DevicePath);
+            BlockDevice->DevicePath = DuplicateDevicePath(BlockDeviceData->DevicePath);
             BlockDevice->DriveType = DriveType;
             BlockDevice->DriveNumber = DriveNumber;
             BlockDevice->PartitionNumber = PartitionNumber;
             BlockDevice->PartitionGuid = PartitionGuid;
 
             /* Add block device to global list */
-            RtlInsertTailList(&EfiBlockDevices, &BlockDevice->ListEntry);
+            RTL::LinkedList::InsertTailList(&EfiBlockDevices, &BlockDevice->ListEntry);
         }
 
         /* Get next entry from linked list */
@@ -210,13 +258,13 @@ BlEnumerateBlockDevices()
  */
 XTCDECL
 EFI_STATUS
-BlFindVolumeDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL FsHandle,
+Volume::FindDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL FsHandle,
                        IN CONST PWCHAR FileSystemPath,
                        OUT PEFI_DEVICE_PATH_PROTOCOL* DevicePath)
 {
     EFI_STATUS Status;
     SIZE_T FsPathLength, DevicePathLength = 0;
-    PEFI_FILEPATH_DEVICE_PATH FilePath = NULL;
+    PEFI_FILEPATH_DEVICE_PATH FilePath = NULLPTR;
     PEFI_DEVICE_PATH_PROTOCOL EndDevicePath;
     PEFI_DEVICE_PATH_PROTOCOL DevicePathHandle;
 
@@ -245,10 +293,10 @@ BlFindVolumeDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL FsHandle,
     }
 
     /* Check real path length */
-    FsPathLength = RtlWideStringLength(FileSystemPath, 0) * sizeof(WCHAR);
+    FsPathLength = RTL::WideString::WideStringLength(FileSystemPath, 0) * sizeof(WCHAR);
 
     /* Allocate memory pool for device path */
-    Status = BlAllocateMemoryPool(FsPathLength + DevicePathLength + sizeof(EFI_DEVICE_PATH_PROTOCOL),
+    Status = Memory::AllocatePool(FsPathLength + DevicePathLength + sizeof(EFI_DEVICE_PATH_PROTOCOL),
                                      (PVOID *)DevicePath);
     if(Status != STATUS_EFI_SUCCESS)
     {
@@ -257,7 +305,7 @@ BlFindVolumeDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL FsHandle,
     }
 
     /* Set file path */
-    RtlCopyMemory(*DevicePath, FsHandle, DevicePathLength);
+    RTL::Memory::CopyMemory(*DevicePath, FsHandle, DevicePathLength);
     FilePath = (PEFI_FILEPATH_DEVICE_PATH)((PUCHAR)*DevicePath + DevicePathLength);
     FilePath->Header.Type = EFI_MEDIA_DEVICE_PATH;
     FilePath->Header.SubType = EFI_MEDIA_FILEPATH_DP;
@@ -265,7 +313,7 @@ BlFindVolumeDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL FsHandle,
     FilePath->Header.Length[1] = FilePath->Header.Length[0] >> 8;
 
     /* Set device path end node */
-    RtlCopyMemory(FilePath->PathName, FileSystemPath, FsPathLength + sizeof(WCHAR));
+    RTL::Memory::CopyMemory(FilePath->PathName, FileSystemPath, FsPathLength + sizeof(WCHAR));
     EndDevicePath = (PEFI_DEVICE_PATH_PROTOCOL)&FilePath->PathName[(FsPathLength / sizeof(WCHAR)) + 1];
     EndDevicePath->Type = EFI_END_DEVICE_PATH;
     EndDevicePath->SubType = EFI_END_ENTIRE_DP;
@@ -291,26 +339,26 @@ BlFindVolumeDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL FsHandle,
  */
 XTCDECL
 EFI_STATUS
-BlGetEfiPath(IN PWCHAR SystemPath,
+Volume::GetEfiPath(IN PWCHAR SystemPath,
                    OUT PWCHAR *EfiPath)
 {
     SIZE_T Index, PathLength;
     EFI_STATUS Status;
 
     /* Get system path length */
-    PathLength = RtlWideStringLength(SystemPath, 0);
+    PathLength = RTL::WideString::WideStringLength(SystemPath, 0);
 
     /* Allocate memory for storing EFI path */
-    Status = BlAllocateMemoryPool(sizeof(WCHAR) * (PathLength + 1), (PVOID *)EfiPath);
+    Status = Memory::AllocatePool(sizeof(WCHAR) * (PathLength + 1), (PVOID *)EfiPath);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to allocate memory, print error message and return status code */
-        BlDebugPrint(L"ERROR: Memory allocation failure (Status Code: 0x%zX)\n", Status);
+        Debug::Print(L"ERROR: Memory allocation failure (Status Code: 0x%zX)\n", Status);
         return STATUS_EFI_OUT_OF_RESOURCES;
     }
 
     /* Make a copy of SystemPath string */
-    RtlCopyMemory(*EfiPath, SystemPath, sizeof(WCHAR) * (PathLength + 1));
+    RTL::Memory::CopyMemory(*EfiPath, SystemPath, sizeof(WCHAR) * (PathLength + 1));
 
     /* Replace directory separator if needed to comply with EFI standard */
     for(Index = 0; Index < PathLength; Index++)
@@ -344,7 +392,7 @@ BlGetEfiPath(IN PWCHAR SystemPath,
  */
 XTCDECL
 EFI_STATUS
-BlGetVolumeDevicePath(IN PWCHAR SystemPath,
+Volume::GetDevicePath(IN PWCHAR SystemPath,
                       OUT PEFI_DEVICE_PATH_PROTOCOL *DevicePath,
                       OUT PWCHAR *ArcName,
                       OUT PWCHAR *Path)
@@ -359,7 +407,7 @@ BlGetVolumeDevicePath(IN PWCHAR SystemPath,
     EFI_STATUS Status;
 
     /* Make sure this is not set */
-    *DevicePath = NULL;
+    *DevicePath = NULLPTR;
 
     /* Find volume path and its length */
     Volume = SystemPath;
@@ -383,13 +431,13 @@ BlGetVolumeDevicePath(IN PWCHAR SystemPath,
         if(PathLength == GUID_STRING_LENGTH)
         {
             /* This is EFI GUID */
-            BlDebugPrint(L"WARNING: EFI/GPT GUID in system path is not supported\n");
+            Debug::Print(L"WARNING: EFI/GPT GUID in system path is not supported\n");
             return STATUS_EFI_UNSUPPORTED;
         }
         else if(PathLength == PARTUUID_STRING_LENGTH)
         {
             /* This is MBR UUID */
-            BlDebugPrint(L"WARNING: MBR partition UUID in system path is not supported\n");
+            Debug::Print(L"WARNING: MBR partition UUID in system path is not supported\n");
             return STATUS_EFI_UNSUPPORTED;
         }
         else
@@ -401,14 +449,14 @@ BlGetVolumeDevicePath(IN PWCHAR SystemPath,
     else
     {
         /* Defaults to ARC path, dissect it */
-        Status = BlpDissectVolumeArcPath(SystemPath, ArcName, Path, &DriveType, &DriveNumber, &PartNumber);
+        Status = DissectArcPath(SystemPath, ArcName, Path, &DriveType, &DriveNumber, &PartNumber);
     }
 
     /* Check if volume path parsed successfully */
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to parse system path */
-        BlDebugPrint(L"ERROR: Failed to parse system path: '%s' (Status Code: 0x%zX)\n", SystemPath, Status);
+        Debug::Print(L"ERROR: Failed to parse system path: '%s' (Status Code: 0x%zX)\n", SystemPath, Status);
         return Status;
     }
 
@@ -418,21 +466,35 @@ BlGetVolumeDevicePath(IN PWCHAR SystemPath,
     {
         /* Check if this is the volume we are looking for */
         Device = CONTAIN_RECORD(ListEntry, EFI_BLOCK_DEVICE, ListEntry);
-        if((Device->DriveType == DriveType && Device->DriveNumber == DriveNumber &&
+        if(DriveType == XTBL_BOOT_DEVICE_ESP)
-           Device->PartitionNumber == PartNumber))
+        {
+            /* ESP requested, verify if flag is set for this device */
+            if((Device->DriveType & XTBL_BOOT_DEVICE_ESP) != 0)
             {
                 /* Found volume */
                 *DevicePath = Device->DevicePath;
                 break;
             }
+        }
+        else
+        {
+            if(((Device->DriveType & DriveType) == DriveType) &&
+               (Device->DriveNumber == DriveNumber) &&
+               (Device->PartitionNumber == PartNumber))
+            {
+                /* Found volume */
+                *DevicePath = Device->DevicePath;
+                break;
+            }
+        }
         ListEntry = ListEntry->Flink;
     }
 
     /* Check if volume was found */
-    if(*DevicePath == NULL)
+    if(*DevicePath == NULLPTR)
     {
-        /* Failed to find volume */
+        /* Volume not found */
-        BlDebugPrint(L"ERROR: Volume (DriveType: %u, DriveNumber: %lu, PartNumber: %lu) not found\n",
+        Debug::Print(L"ERROR: Volume (DriveType: %u, DriveNumber: %lu, PartNumber: %lu) not found\n",
                      DriveType, DriveNumber, PartNumber);
         return STATUS_EFI_NOT_FOUND;
     }
@@ -459,7 +521,7 @@ BlGetVolumeDevicePath(IN PWCHAR SystemPath,
  */
 XTCDECL
 EFI_STATUS
-BlOpenVolume(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
+Volume::OpenVolume(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
                    OUT PEFI_HANDLE DiskHandle,
                    OUT PEFI_FILE_HANDLE *FsHandle)
 {
@@ -470,10 +532,10 @@ BlOpenVolume(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
     EFI_STATUS Status;
 
     /* Check if device path has been passed or not */
-    if(DevicePath != NULL)
+    if(DevicePath != NULLPTR)
     {
         /* Locate the device path */
-        Status = EfiSystemTable->BootServices->LocateDevicePath(&SFSGuid, &DevicePath, DiskHandle);
+        Status = XtLoader::GetEfiSystemTable()->BootServices->LocateDevicePath(&SFSGuid, &DevicePath, DiskHandle);
         if(Status != STATUS_EFI_SUCCESS)
         {
             /* Failed to locate device path */
@@ -483,8 +545,12 @@ BlOpenVolume(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
     else
     {
         /* Open the image protocol if no device path specified */
-        Status = EfiSystemTable->BootServices->OpenProtocol(EfiImageHandle, &LIPGuid, (PVOID *)&ImageProtocol,
+        Status = XtLoader::GetEfiSystemTable()->BootServices->OpenProtocol(XtLoader::GetEfiImageHandle(),
-                                                            EfiImageHandle, NULL, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
+                                                                           &LIPGuid,
+                                                                           (PVOID *)&ImageProtocol,
+                                                                           XtLoader::GetEfiImageHandle(),
+                                                                           NULLPTR,
+                                                                           EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
         if(Status != STATUS_EFI_SUCCESS)
         {
             /* Failed to open image protocol */
@@ -496,14 +562,16 @@ BlOpenVolume(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
     }
 
     /* Open the filesystem protocol */
-    Status = EfiSystemTable->BootServices->OpenProtocol(*DiskHandle, &SFSGuid, (PVOID *)&FileSystemProtocol,
+    Status = XtLoader::GetEfiSystemTable()->BootServices->OpenProtocol(*DiskHandle, &SFSGuid,
-                                                        EfiImageHandle, NULL, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
+                                                                       (PVOID *)&FileSystemProtocol,
+                                                                       XtLoader::GetEfiImageHandle(), NULLPTR,
+                                                                       EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
 
     /* Check if filesystem protocol opened successfully */
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to open the filesystem protocol, close volume */
-        BlCloseVolume(*DiskHandle);
+        CloseVolume(DiskHandle);
         return Status;
     }
 
@@ -512,7 +580,7 @@ BlOpenVolume(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to open the filesystem, close volume */
-        BlCloseVolume(*DiskHandle);
+        CloseVolume(DiskHandle);
         return Status;
     }
 
@@ -541,8 +609,8 @@ BlOpenVolume(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
  */
 XTCDECL
 EFI_STATUS
-BlReadFile(IN PEFI_FILE_HANDLE DirHandle,
+Volume::ReadFile(IN PEFI_FILE_HANDLE DirHandle,
-           IN CONST PWCHAR FileName,
+                 IN PCWSTR FileName,
                  OUT PVOID *FileData,
                  OUT PSIZE_T FileSize)
 {
@@ -554,7 +622,7 @@ BlReadFile(IN PEFI_FILE_HANDLE DirHandle,
     UINT_PTR ReadSize;
     SIZE_T Pages;
 
-    Status = DirHandle->Open(DirHandle, &FileHandle, FileName, EFI_FILE_MODE_READ,
+    Status = DirHandle->Open(DirHandle, &FileHandle, (PWCHAR)FileName, EFI_FILE_MODE_READ,
                              EFI_FILE_READ_ONLY | EFI_FILE_HIDDEN | EFI_FILE_SYSTEM);
     if(Status != STATUS_EFI_SUCCESS)
     {
@@ -566,7 +634,7 @@ BlReadFile(IN PEFI_FILE_HANDLE DirHandle,
     ReadSize = sizeof(EFI_FILE_INFO) + 32;
 
     /* Allocate necessary amount of memory */
-    Status = BlAllocateMemoryPool(ReadSize, (PVOID *)&FileInfo);
+    Status = Memory::AllocatePool(ReadSize, (PVOID *)&FileInfo);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Memory allocation failure */
@@ -579,8 +647,8 @@ BlReadFile(IN PEFI_FILE_HANDLE DirHandle,
     if(Status == STATUS_EFI_BUFFER_TOO_SMALL)
     {
         /* Buffer is too small, but EFI tells the required size, so reallocate */
-        BlFreeMemoryPool(&FileInfo);
+        Memory::FreePool(&FileInfo);
-        Status = BlAllocateMemoryPool(ReadSize, (PVOID *)&FileInfo);
+        Status = Memory::AllocatePool(ReadSize, (PVOID *)&FileInfo);
         if(Status != STATUS_EFI_SUCCESS)
         {
             /* Memory allocation failure */
@@ -597,7 +665,7 @@ BlReadFile(IN PEFI_FILE_HANDLE DirHandle,
     {
         /* Unable to get file information */
         FileHandle->Close(FileHandle);
-        BlFreeMemoryPool(&FileInfo);
+        Memory::FreePool(&FileInfo);
         return Status;
     }
 
@@ -606,19 +674,19 @@ BlReadFile(IN PEFI_FILE_HANDLE DirHandle,
     Pages = EFI_SIZE_TO_PAGES(FileInfo->FileSize);
 
     /* Allocate pages */
-    Status = BlAllocateMemoryPages(Pages, &Address);
+    Status = Memory::AllocatePages(AllocateAnyPages, Pages, &Address);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Pages allocation failure */
         FileHandle->Close(FileHandle);
-        BlFreeMemoryPool(&FileInfo);
+        Memory::FreePool(&FileInfo);
         return Status;
     }
 
     /* Calculate number of bytes to read and zero memory */
     ReadSize = Pages * EFI_PAGE_SIZE;
     *FileData = (PCHAR)(UINT_PTR)Address;
-    RtlZeroMemory(*FileData, ReadSize);
+    RTL::Memory::ZeroMemory(*FileData, ReadSize);
 
     /* Read data from the file */
     Status = FileHandle->Read(FileHandle, &ReadSize, *FileData);
@@ -626,14 +694,14 @@ BlReadFile(IN PEFI_FILE_HANDLE DirHandle,
     {
         /* Failed to read data */
         FileHandle->Close(FileHandle);
-        BlFreeMemoryPool(&FileInfo);
+        Memory::FreePool(&FileInfo);
-        BlFreeMemoryPages(Pages, (EFI_PHYSICAL_ADDRESS)(UINT_PTR)*FileData);
+        Memory::FreePages(Pages, (EFI_PHYSICAL_ADDRESS)(UINT_PTR)*FileData);
         return Status;
     }
 
     /* Close handle and free memory */
     FileHandle->Close(FileHandle);
-    BlFreeMemoryPool(FileInfo);
+    Memory::FreePool(FileInfo);
 
     /* Return success */
     return STATUS_EFI_SUCCESS;
@@ -651,23 +719,23 @@ BlReadFile(IN PEFI_FILE_HANDLE DirHandle,
  */
 XTCDECL
 EFI_STATUS
-BlpDiscoverEfiBlockDevices(OUT PLIST_ENTRY BlockDevices)
+Volume::DiscoverEfiBlockDevices(OUT PLIST_ENTRY BlockDevices)
 {
     EFI_GUID DevicePathGuid = EFI_DEVICE_PATH_PROTOCOL_GUID;
     EFI_GUID IoGuid = EFI_BLOCK_IO_PROTOCOL_GUID;
     PEFI_DEVICE_PATH_PROTOCOL DevicePath;
     PEFI_BLOCK_DEVICE_DATA BlockDevice;
     UINT_PTR HandlesCount, Index;
-    PEFI_HANDLE Handles = NULL;
+    PEFI_HANDLE Handles = NULLPTR;
     PEFI_BLOCK_IO_PROTOCOL Io;
     EFI_STATUS Status;
 
     /* Locate handles which support the disk I/O interface */
-    Status = BlLocateProtocolHandles(&Handles, &HandlesCount, &IoGuid);
+    Status = Protocol::LocateProtocolHandles(&Handles, &HandlesCount, &IoGuid);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to locate handles */
-        BlDebugPrint(L"ERROR: Failed to locate block devices handles (Status Code: 0x%zX)\n", Status);
+        Debug::Print(L"ERROR: Failed to locate block devices handles (Status Code: 0x%zX)\n", Status);
         return Status;
     }
 
@@ -675,15 +743,15 @@ BlpDiscoverEfiBlockDevices(OUT PLIST_ENTRY BlockDevices)
     for(Index = 0; Index < HandlesCount; Index++)
     {
         /* Print debug message */
-        BlDebugPrint(L"Opening %lu block device from %lu discovered\n", Index + 1, HandlesCount);
+        Debug::Print(L"Opening %lu block device from %lu discovered\n", Index + 1, HandlesCount);
 
         /* Open I/O protocol for given handle */
-        Io = NULL;
+        Io = NULLPTR;
-        Status = BlOpenProtocolHandle(Handles[Index], (PVOID *)&Io, &IoGuid);
+        Status = Protocol::OpenProtocolHandle(Handles[Index], (PVOID *)&Io, &IoGuid);
-        if(Status != STATUS_EFI_SUCCESS || Io == NULL)
+        if(Status != STATUS_EFI_SUCCESS || Io == NULLPTR)
         {
             /* Failed to open I/O protocol, skip it */
-            BlDebugPrint(L"WARNING: Failed to open EFI Block I/O protocol (Status Code: 0x%zX)\n", Status);
+            Debug::Print(L"WARNING: Failed to open EFI Block I/O protocol (Status Code: 0x%zX)\n", Status);
             continue;
         }
 
@@ -691,40 +759,44 @@ BlpDiscoverEfiBlockDevices(OUT PLIST_ENTRY BlockDevices)
         if(Io->Media && Io->Media->BlockSize == 1 && Io->Media->MediaId == 0x69505845U)
         {
             /* Skip stub as it is non-functional */
-            BlDebugPrint(L"WARNING: Skipping iPXE stub block I/O protocol");
+            Debug::Print(L"WARNING: Skipping iPXE stub block I/O protocol");
             continue;
         }
 
         /* Check if DevicePath protocol is supported by this handle */
-        DevicePath = NULL;
+        DevicePath = NULLPTR;
-        Status = EfiSystemTable->BootServices->HandleProtocol(Handles[Index], &DevicePathGuid, (PVOID *)&DevicePath);
+        Status = XtLoader::GetEfiSystemTable()->BootServices->HandleProtocol(Handles[Index], &DevicePathGuid,
-        if(Status != STATUS_EFI_SUCCESS || DevicePath == NULL)
+                                                                             (PVOID *)&DevicePath);
+        if(Status != STATUS_EFI_SUCCESS || DevicePath == NULLPTR)
         {
             /* Device failed to handle DP protocol */
-            BlDebugPrint(L"WARNING: Unable to open DevicePath protocol (Status Code: 0x%zX)\n", Status);
+            Debug::Print(L"WARNING: Unable to open DevicePath protocol (Status Code: 0x%zX)\n", Status);
-            EfiSystemTable->BootServices->CloseProtocol(Handles[Index], &IoGuid, EfiImageHandle, NULL);
+            XtLoader::GetEfiSystemTable()->BootServices->CloseProtocol(Handles[Index], &IoGuid,
+                                                                       XtLoader::GetEfiImageHandle(), NULLPTR);
             continue;
         }
 
         /* Allocate memory for block device */
-        Status = BlAllocateMemoryPool(sizeof(*BlockDevice), (PVOID *)&BlockDevice);
+        Status = Memory::AllocatePool(sizeof(*BlockDevice), (PVOID *)&BlockDevice);
         if(Status != STATUS_EFI_SUCCESS)
         {
             /* Memory allocation failure */
-            BlDebugPrint(L"ERROR: Failed to allocate memory pool for block device (Status Code: 0x%zX)\n", Status);
+            Debug::Print(L"ERROR: Failed to allocate memory pool for block device (Status Code: 0x%zX)\n", Status);
-            EfiSystemTable->BootServices->CloseProtocol(Handles[Index], &DevicePathGuid, EfiImageHandle, NULL);
+            XtLoader::GetEfiSystemTable()->BootServices->CloseProtocol(Handles[Index], &DevicePathGuid,
-            EfiSystemTable->BootServices->CloseProtocol(Handles[Index], &IoGuid, EfiImageHandle, NULL);
+                                                                       XtLoader::GetEfiImageHandle(), NULLPTR);
+            XtLoader::GetEfiSystemTable()->BootServices->CloseProtocol(Handles[Index], &IoGuid,
+                                                                       XtLoader::GetEfiImageHandle(), NULLPTR);
             return Status;
         }
 
         /* Store new block device into a linked list */
         BlockDevice->BlockIo = Io;
         BlockDevice->DevicePath = DevicePath;
-        RtlInsertTailList(BlockDevices, &BlockDevice->ListEntry);
+        RTL::LinkedList::InsertTailList(BlockDevices, &BlockDevice->ListEntry);
     }
 
     /* Free handles buffer */
-    BlFreeMemoryPool(Handles);
+    Memory::FreePool(Handles);
 
     /* Return success */
     return STATUS_EFI_SUCCESS;
@@ -754,7 +826,7 @@ BlpDiscoverEfiBlockDevices(OUT PLIST_ENTRY BlockDevices)
  */
 XTCDECL
 EFI_STATUS
-BlpDissectVolumeArcPath(IN PWCHAR SystemPath,
+Volume::DissectArcPath(IN PWCHAR SystemPath,
                        OUT PWCHAR *ArcName,
                        OUT PWCHAR *Path,
                        OUT PUSHORT DriveType,
@@ -770,20 +842,26 @@ BlpDissectVolumeArcPath(IN PWCHAR SystemPath,
     *PartNumber = 0;
 
     /* Look for the ARC path */
-    if(RtlCompareWideStringInsensitive(SystemPath, L"ramdisk(0)", 0) == 0)
+    if(RTL::WideString::CompareWideStringInsensitive(SystemPath, L"ramdisk(0)", 0) == 0)
     {
         /* This is RAM disk */
         ArcLength = 10;
         *DriveType = XTBL_BOOT_DEVICE_RAMDISK;
     }
-    else if(RtlCompareWideStringInsensitive(SystemPath, L"multi(0)disk(0)", 0) == 0)
+    else if(RTL::WideString::CompareWideStringInsensitive(SystemPath, L"multi(0)esp(0)", 0) == 0)
+    {
+        /* This is ESP */
+        ArcLength = 14;
+        *DriveType = XTBL_BOOT_DEVICE_ESP;
+    }
+    else if(RTL::WideString::CompareWideStringInsensitive(SystemPath, L"multi(0)disk(0)", 0) == 0)
     {
         /* This is a multi-disk port */
         ArcLength = 15;
         ArcPath = SystemPath + ArcLength;
 
         /* Check for disk type */
-        if(RtlCompareWideStringInsensitive(ArcPath, L"cdrom(", 0) == 0)
+        if(RTL::WideString::CompareWideStringInsensitive(ArcPath, L"cdrom(", 0) == 0)
         {
             /* This is an optical drive */
             ArcLength += 6;
@@ -804,7 +882,7 @@ BlpDissectVolumeArcPath(IN PWCHAR SystemPath,
             *DriveType = XTBL_BOOT_DEVICE_CDROM;
             ArcLength++;
         }
-        else if(RtlCompareWideStringInsensitive(ArcPath, L"fdisk(", 0) == 0)
+        else if(RTL::WideString::CompareWideStringInsensitive(ArcPath, L"fdisk(", 0) == 0)
         {
             /* This is a floppy drive */
             ArcLength += 6;
@@ -825,7 +903,7 @@ BlpDissectVolumeArcPath(IN PWCHAR SystemPath,
             *DriveType = XTBL_BOOT_DEVICE_FLOPPY;
             ArcLength++;
         }
-        else if(RtlCompareWideStringInsensitive(ArcPath, L"rdisk(", 0) == 0)
+        else if(RTL::WideString::CompareWideStringInsensitive(ArcPath, L"rdisk(", 0) == 0)
         {
             /* This is a hard disk */
             ArcLength += 6;
@@ -848,7 +926,7 @@ BlpDissectVolumeArcPath(IN PWCHAR SystemPath,
             ArcPath = SystemPath + ArcLength;
 
             /* Look for a partition */
-            if(RtlCompareWideStringInsensitive(ArcPath, L"partition(", 0) == 0)
+            if(RTL::WideString::CompareWideStringInsensitive(ArcPath, L"partition(", 0) == 0)
             {
                 /* Partition information found */
                 ArcLength += 10;
@@ -888,8 +966,8 @@ BlpDissectVolumeArcPath(IN PWCHAR SystemPath,
     /* Store ARC name if possible */
     if(ArcName)
     {
-        BlAllocateMemoryPool(ArcLength * sizeof(WCHAR), (PVOID *)&LocalArcName);
+        Memory::AllocatePool(ArcLength * sizeof(WCHAR), (PVOID *)&LocalArcName);
-        RtlCopyMemory(LocalArcName, SystemPath, ArcLength * sizeof(WCHAR));
+        RTL::Memory::CopyMemory(LocalArcName, SystemPath, ArcLength * sizeof(WCHAR));
         LocalArcName[ArcLength] = '\0';
         *ArcName = LocalArcName;
     }
@@ -910,44 +988,52 @@ BlpDissectVolumeArcPath(IN PWCHAR SystemPath,
  */
 XTCDECL
 PEFI_DEVICE_PATH_PROTOCOL
-BlpDuplicateDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath)
+Volume::DuplicateDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath)
 {
     PEFI_DEVICE_PATH_PROTOCOL DevicePathNode;
     PEFI_DEVICE_PATH_PROTOCOL DevicePathClone;
     EFI_STATUS Status;
     UINT Length = 0;
 
+    /* Check if the input device path is NULL pointer */
+    if(!DevicePath)
+    {
+        /* Nothing to duplicate */
+        return NULLPTR;
+    }
+
+    /* Start iterating from the beginning of the device path */
     DevicePathNode = DevicePath;
 
     /* Get the device path length */
     while(TRUE)
     {
-        Length += *(PUSHORT)DevicePath->Length;
+        Length += *(PUSHORT)DevicePathNode->Length;
         if(DevicePathNode->Type == EFI_END_DEVICE_PATH)
         {
             break;
         }
-        DevicePathNode = (PEFI_DEVICE_PATH_PROTOCOL)((PUCHAR)DevicePathNode + *(PUSHORT)DevicePath->Length);
+        DevicePathNode = (PEFI_DEVICE_PATH_PROTOCOL)((PUCHAR)DevicePathNode + *(PUSHORT)DevicePathNode->Length);
     }
 
     /* Check length */
     if(Length == 0)
     {
         /* Nothing to duplicate */
-        return NULL;
+        return NULLPTR;
     }
 
     /* Allocate memory for the new device path */
-    Status = BlAllocateMemoryPool(Length, (PVOID *)&DevicePathClone);
+    Status = Memory::AllocatePool(Length, (PVOID *)&DevicePathClone);
     if(Status != STATUS_EFI_SUCCESS)
     {
         /* Failed to allocate memory */
-        BlDebugPrint(L"ERROR: Failed to allocate memory pool for device path duplicate (Status Code: 0x%zX)\n", Status);
+        Debug::Print(L"ERROR: Failed to allocate memory pool for device path duplicate (Status Code: 0x%zX)\n", Status);
-        return NULL;
+        return NULLPTR;
     }
 
     /* Copy the device path */
-    RtlCopyMemory(DevicePathClone, DevicePath, Length);
+    RTL::Memory::CopyMemory(DevicePathClone, DevicePath, Length);
 
     /* Return the cloned object */
     return DevicePathClone;
@@ -968,7 +1054,7 @@ BlpDuplicateDevicePath(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath)
  */
 XTCDECL
 EFI_STATUS
-BlpFindLastBlockDeviceNode(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
+Volume::FindLastBlockDeviceNode(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
                                 OUT PEFI_DEVICE_PATH_PROTOCOL *LastNode)
 {
     PEFI_DEVICE_PATH_PROTOCOL EndNode, NextNode;
@@ -977,7 +1063,7 @@ BlpFindLastBlockDeviceNode(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
     if(DevicePath->Type == EFI_END_DEVICE_PATH)
     {
         /* End reached, nothing to do */
-        LastNode = NULL;
+        LastNode = NULLPTR;
         return STATUS_EFI_INVALID_PARAMETER;
     }
 
@@ -1014,9 +1100,9 @@ BlpFindLastBlockDeviceNode(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath,
  */
 XTCDECL
 BOOLEAN
-BlpFindParentBlockDevice(IN PLIST_ENTRY BlockDevices,
+Volume::FindParentBlockDevice(IN PLIST_ENTRY BlockDevices,
                               IN PEFI_BLOCK_DEVICE_DATA ChildNode,
-                         OUT PEFI_BLOCK_DEVICE_DATA ParentNode)
+                              OUT PEFI_BLOCK_DEVICE_DATA *ParentNode)
 {
     PEFI_DEVICE_PATH_PROTOCOL ChildDevicePath, ParentDevicePath;
     PEFI_BLOCK_DEVICE_DATA BlockDeviceData;
@@ -1029,6 +1115,14 @@ BlpFindParentBlockDevice(IN PLIST_ENTRY BlockDevices,
         /* Take block device from the list */
         BlockDeviceData = CONTAIN_RECORD(ListEntry, EFI_BLOCK_DEVICE_DATA, ListEntry);
 
+        /* A device cannot be its own parent */
+        if (BlockDeviceData == ChildNode)
+        {
+            /* Move to the next device */
+            ListEntry = ListEntry->Flink;
+            continue;
+        }
+
         ChildDevicePath = ChildNode->DevicePath;
         ParentDevicePath = BlockDeviceData->DevicePath;
 
@@ -1039,7 +1133,7 @@ BlpFindParentBlockDevice(IN PLIST_ENTRY BlockDevices,
             if(ParentDevicePath->Type == EFI_END_DEVICE_PATH)
             {
                 /* Parent device is a match */
-                ParentNode = BlockDeviceData;
+                *ParentNode = BlockDeviceData;
                 return TRUE;
             }
 
@@ -1047,10 +1141,11 @@ BlpFindParentBlockDevice(IN PLIST_ENTRY BlockDevices,
             ChildLength = *(PUSHORT)ChildDevicePath->Length;
             ParentLength = *(PUSHORT)ParentDevicePath->Length;
 
-            /* Check if lengths match */
+            /* Check if nodes match */
-            if(ChildLength != ParentLength)
+            if((ChildLength != ParentLength) ||
+               (RTL::Memory::CompareMemory(ChildDevicePath, ParentDevicePath, ParentLength) != ParentLength))
             {
-                /* Lengths do not match, this is not a valid parent */
+                /* Nodes do not match, this is not a valid parent */
                 break;
             }
 

boot/xtldr/xtldr.cc

@@ -0,0 +1,337 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtldr/xtldr.cc
+ * DESCRIPTION:     XTOS UEFI Boot Loader
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <xtldr.hh>
+
+
+/**
+ * Disables access to EFI Boot Services.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+XtLoader::DisableBootServices()
+{
+    LoaderStatus.BootServices = FALSE;
+
+}
+
+/**
+ * Queries the availability of EFI Boot Services.
+ *
+ * @return This routine returns TRUE if EFI Boot Services are available, FALSE otherwise.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+BOOLEAN
+XtLoader::GetBootServicesStatus()
+{
+    return LoaderStatus.BootServices;
+}
+
+/**
+ * Retrieves the EFI image handle.
+ *
+ * @return This routine returns a handle to the EFI-loaded image.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_HANDLE
+XtLoader::GetEfiImageHandle()
+{
+    return XtLoader::EfiImageHandle;
+}
+
+/**
+ * Retrieves the EFI system table pointer.
+ *
+ * @return This routine returns a pointer to the EFI system table.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+PEFI_SYSTEM_TABLE
+XtLoader::GetEfiSystemTable()
+{
+    return XtLoader::EfiSystemTable;
+}
+
+/**
+ * Provides base address and size of the XTLDR image.
+ *
+ * @param LoaderBase
+ *        Supplies a pointer to a variable that receives the base address of the XTLDR image.
+ *
+ * @param LoaderSize
+ *        Supplies a pointer to a variable that receives the size of the XTLDR image.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+XtLoader::GetLoaderImageInformation(PVOID *LoaderBase,
+                                    PULONGLONG LoaderSize)
+{
+    *LoaderBase = XtLoader::LoaderStatus.LoaderBase;
+    *LoaderSize = XtLoader::LoaderStatus.LoaderSize;
+}
+
+/**
+ * Retrieves the Secure Boot status.
+ *
+ * @return This routine returns SecureBoot status.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+INT_PTR
+XtLoader::GetSecureBootStatus()
+{
+    return LoaderStatus.SecureBoot;
+}
+
+/**
+ * Initializes EFI Boot Loader (XTLDR).
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+XtLoader::InitializeBootLoader(IN EFI_HANDLE ImageHandle,
+                               IN PEFI_SYSTEM_TABLE SystemTable)
+{
+    EFI_GUID LipGuid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
+    PEFI_LOADED_IMAGE_PROTOCOL LoadedImage;
+    EFI_HANDLE Handle;
+    EFI_STATUS Status;
+
+    /* Set the system table and image handle */
+    EfiImageHandle = ImageHandle;
+    EfiSystemTable = SystemTable;
+
+    /* Set current XTLDR's EFI BootServices status */
+    LoaderStatus.BootServices = TRUE;
+
+    /* Initialize console */
+    Console::InitializeConsole();
+
+    /* Print XTLDR version */
+    Console::Print(L"XTLDR boot loader v%s\n", XTOS_VERSION);
+
+    /* Initialize XTLDR protocol */
+    Protocol::InitializeProtocol();
+
+    /* Initialize XTLDR configuration */
+    Configuration::InitializeConfiguration();
+
+    /* Store SecureBoot status */
+    LoaderStatus.SecureBoot = EfiUtils::GetSecureBootStatus();
+
+    /* Attempt to open EFI LoadedImage protocol */
+    Status = Protocol::OpenProtocol(&Handle, (PVOID *)&LoadedImage, &LipGuid);
+    if(Status == STATUS_EFI_SUCCESS)
+    {
+        /* Store boot loader image base and size */
+        LoaderStatus.LoaderBase = LoadedImage->ImageBase;
+        LoaderStatus.LoaderSize = LoadedImage->ImageSize;
+
+        /* Check if debug is enabled */
+        if(DEBUG)
+        {
+            /* Protocol opened successfully, print useful debug information */
+            Console::Print(L"\n---------- BOOTLOADER DEBUG ----------\n"
+                           L"Pointer Size       : %d\n"
+                           L"Image Base Address : %P\n"
+                           L"Image Base Size    : 0x%lX\n"
+                           L"Image Revision     : 0x%lX\n"
+                           L"Secure Boot Status : %zd\n"
+                           L"--------------------------------------\n",
+                           sizeof(PVOID),
+                           LoadedImage->ImageBase,
+                           LoadedImage->ImageSize,
+                           LoadedImage->Revision,
+                           LoaderStatus.SecureBoot);
+            EfiUtils::SleepExecution(3000);
+        }
+
+        /* Close EFI LoadedImage protocol */
+        Protocol::CloseProtocol(&Handle, &LipGuid);
+    }
+}
+
+/**
+ * Registers a boot menu callback routine, that will be used to display alternative boot menu.
+ *
+ * @param BootMenuRoutine
+ *        Supplies a pointer to the boot menu callback routine.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+XtLoader::RegisterBootMenu(IN PVOID BootMenuRoutine)
+{
+    /* Set boot menu routine */
+    BootMenu = (PBL_XT_BOOT_MENU)BootMenuRoutine;
+}
+
+/**
+ * Invokes either a custom boot menu handler, if one has been registered, or displays the default boot menu.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+XtLoader::ShowBootMenu()
+{
+    /* Check if custom boot menu registered */
+    if(BootMenu != NULLPTR)
+    {
+        /* Display alternative boot menu */
+        BootMenu();
+    }
+    else
+    {
+        /* Display default boot menu */
+        TextUi::DisplayBootMenu();
+    }
+}
+
+/**
+ * This routine is the entry point of the XT EFI boot loader.
+ *
+ * @param ImageHandle
+ *        Firmware-allocated handle that identifies the image.
+ *
+ * @param SystemTable
+ *        Provides the EFI system table.
+ *
+ * @return This routine returns status code.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+EFI_STATUS
+BlStartXtLoader(IN EFI_HANDLE ImageHandle,
+                IN PEFI_SYSTEM_TABLE SystemTable)
+{
+    PWCHAR Modules;
+    EFI_STATUS Status;
+
+    /* Check if system is EFI-based and provided parameters are valid */
+    if(ImageHandle == NULLPTR || SystemTable == NULLPTR)
+    {
+        /* Invalid parameters, print error message using BIOS calls and hang */
+        BiosUtils::ClearScreen();
+        BiosUtils::Print(L"XTLDR requires EFI-based system!");
+        for(;;);
+    }
+
+    /* Initialize XTLDR and */
+    XtLoader::InitializeBootLoader(ImageHandle, SystemTable);
+
+    /* Parse configuration options passed from UEFI shell */
+    Status = Configuration::ParseCommandLine();
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to parse command line options */
+        TextUi::DisplayErrorDialog(L"XTLDR", L"Failed to parse command line parameters.");
+    }
+
+    /* Attempt to early initialize debug console */
+    if(DEBUG)
+    {
+        Status = Debug::InitializeDebugConsole();
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Initialization failed, notify user on stdout */
+            TextUi::DisplayErrorDialog(L"XTLDR", L"Failed to initialize debug console.");
+        }
+    }
+
+    /* Load XTLDR configuration file */
+    Status = Configuration::LoadConfiguration();
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to load/parse config file */
+        TextUi::DisplayErrorDialog(L"XTLDR", L"Failed to load and parse configuration file ");
+    }
+
+    /* Reinitialize debug console if it was not initialized earlier */
+    if(DEBUG)
+    {
+        Status = Debug::InitializeDebugConsole();
+        if(Status != STATUS_EFI_SUCCESS)
+        {
+            /* Initialization failed, notify user on stdout */
+            TextUi::DisplayErrorDialog(L"XTLDR", L"Failed to initialize debug console.");
+        }
+    }
+
+    /* Disable watchdog timer */
+    Status = XtLoader::GetEfiSystemTable()->BootServices->SetWatchdogTimer(0, 0x10000, 0, NULLPTR);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to disable the timer, print message */
+        Debug::Print(L"WARNING: Failed to disable watchdog timer (Status Code: 0x%zX)\n", Status);
+    }
+
+    /* Install loader protocol */
+    Status = Protocol::InstallXtLoaderProtocol();
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to register loader protocol */
+        Debug::Print(L"ERROR: Failed to register XTLDR loader protocol (Status Code: 0x%zX)\n", Status);
+        return Status;
+    }
+
+    /* Load all necessary modules */
+    Configuration::GetValue(L"MODULES", &Modules);
+    Status = Protocol::LoadModules(Modules);
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to load modules */
+        Debug::Print(L"ERROR: Failed to load XTLDR modules (Status Code: 0x%zX)\n", Status);
+        TextUi::DisplayErrorDialog(L"XTLDR", L"Failed to load some XTLDR modules.");
+    }
+
+    /* Discover and enumerate EFI block devices */
+    Status = Volume::EnumerateBlockDevices();
+    if(Status != STATUS_EFI_SUCCESS)
+    {
+        /* Failed to enumerate block devices */
+        Debug::Print(L"ERROR: Failed to discover and enumerate block devices (Status Code: 0x%zX)\n", Status);
+        return Status;
+    }
+
+    /* Main boot loader loop */
+    while(TRUE)
+    {
+        /* Show boot menu */
+        XtLoader::ShowBootMenu();
+
+        /* Fallback to shell, if boot menu returned */
+        Shell::StartLoaderShell();
+    }
+
+    /* This point should be never reached, if this happen return error code */
+    return STATUS_EFI_LOAD_ERROR;
+}

configure.ps1

@@ -0,0 +1,44 @@
+# PROJECT:     ExectOS
+# LICENSE:     See the COPYING.md in the top level directory
+# FILE:        configure.ps1
+# DESCRIPTION: Project configuration script for preparing the build environment
+# DEVELOPERS:  Aiken Harris <harraiken91@gmail.com>
+
+# Check XTchain
+if (-not $env:XTCVER) {
+    Write-Error "XTChain not detected or corrupted!"
+    exit 1
+}
+
+# Set target architecture defaulting to amd64
+$ARCH = if ($env:TARGET) { $env:TARGET } else { "amd64" }
+
+# Set target build type defaulting to Debug
+$env:BUILD_TYPE = if ($env:BUILD_TYPE -in @("Debug", "Release")) { $env:BUILD_TYPE } else { "Debug" }
+
+# Set variables
+$EXECTOS_SOURCE_DIR = $PSScriptRoot
+$EXECTOS_BINARY_DIR = Join-Path $EXECTOS_SOURCE_DIR "build-$ARCH-$($env:BUILD_TYPE.ToLower())"
+
+# Create build directory
+if (-not (Test-Path $EXECTOS_BINARY_DIR)) {
+    Write-Host "Creating build directory: $EXECTOS_BINARY_DIR"
+    New-Item -ItemType Directory -Path $EXECTOS_BINARY_DIR -Force | Out-Null
+}
+
+Set-Location $EXECTOS_BINARY_DIR
+
+# Delete old cache
+Remove-Item "CMakeCache.txt", "host-tools/CMakeCache.txt" -ErrorAction SilentlyContinue
+
+# Configure project using CMake
+& cmake -G Ninja "-DARCH:STRING=$ARCH" "-DBUILD_TYPE:STRING=$($env:BUILD_TYPE)" $EXECTOS_SOURCE_DIR
+
+# Check if configuration succeeded
+if ($LASTEXITCODE -ne 0) {
+    Write-Error "Configure script failed."
+    exit 1
+}
+
+$ARCH | Out-File -Encoding ASCII -NoNewline "build.arch"
+Write-Host "Configure completed. Run 'xbuild' to build ExectOS."

configure.sh

@@ -1,4 +1,10 @@
 #!/bin/bash
+# PROJECT:     ExectOS
+# LICENSE:     See the COPYING.md in the top level directory
+# FILE:        configure.sh
+# DESCRIPTION: Project configuration script for preparing the build environment
+# DEVELOPERS:  Rafal Kupiec <belliash@codingworkshop.eu.org>
+
 
 # Check XTCHain
 if [ "x${XTCVER}" = "x" ]; then
@@ -16,13 +22,12 @@ fi
 
 # Set variables
 EXECTOS_SOURCE_DIR=$(cd `dirname ${0}` && pwd)
-EXECTOS_BINARY_DIR=build-${ARCH}-xtchain
+EXECTOS_BINARY_DIR=build-${ARCH}-${BUILD_TYPE,,}
 
 # Create directories if needed
 if [ "${EXECTOS_SOURCE_DIR}" = "${PWD}" ]; then
 	echo Creating directories in ${EXECTOS_BINARY_DIR}
 	mkdir -p "${EXECTOS_BINARY_DIR}"
-	ln -sf ${EXECTOS_BINARY_DIR} build
 	cd "${EXECTOS_BINARY_DIR}"
 fi
 

drivers/ntosdrv/CMakeLists.txt

@@ -7,8 +7,8 @@ include_directories(
 
 # Specify list of source code files
 list(APPEND NTOSDRV_SOURCE
-    ${NTOSDRV_SOURCE_DIR}/ntosdrv.c
+    ${NTOSDRV_SOURCE_DIR}/ntosdrv.cc
-    ${NTOSDRV_SOURCE_DIR}/rtl.c)
+    ${NTOSDRV_SOURCE_DIR}/rtl.cc)
 
 # Set module definition SPEC file
 set_specfile(ntosdrv.spec ntosdrv.sys)

drivers/ntosdrv/ntosdrv.cc

@@ -1,7 +1,7 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            drivers/ntosdrv/ntosdrv.c
+ * FILE:            drivers/ntosdrv/ntosdrv.cc
  * DESCRIPTION:     NTOS compatibility driver
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
@@ -16,6 +16,7 @@
  *
  * @since XT 1.0
  */
+XTCLINK
 XTAPI
 XTSTATUS
 XtDriverEntry(VOID)

drivers/ntosdrv/rtl.cc

@@ -1,7 +1,7 @@
 /**
  * PROJECT:         ExectOS
  * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            drivers/ntosdrv/rtl.c
+ * FILE:            drivers/ntosdrv/rtl.cc
  * DESCRIPTION:     NTOS compatibility driver runtime library
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
  */
@@ -25,6 +25,7 @@
  *
  * @since NT 3.5
  */
+XTCLINK
 XTAPI
 VOID
 RtlFillMemory(OUT PVOID Destination,

sdk/CMakeLists.txt

@@ -0,0 +1 @@
+set_sdk_target("xtdk/" "include")

sdk/cmake/baseaddress/amd64.cmake

@@ -0,0 +1,3 @@
+# Set base addresses for all modules
+set(BASEADDRESS_XTLDR    0x000000000000F800)
+set(BASEADDRESS_XTOSKRNL 0x0000000140000000)

sdk/cmake/baseaddress/i686.cmake

@@ -1,3 +1,3 @@
 # Set base addresses for all modules
-set(BASEADDRESS_XTLDR    0x00010000)
+set(BASEADDRESS_XTLDR    0x0000F800)
 set(BASEADDRESS_XTOSKRNL 0x00400000)

sdk/cmake/emulation.cmake

@@ -8,41 +8,79 @@ endif()
 # This target creates a disk image
 add_custom_target(diskimg
                   DEPENDS install
-                  COMMAND sh -c "dd if=/dev/zero of=${EXECTOS_BINARY_DIR}/output/disk.img bs=512 count=${PROJECT_DISK_IMAGE_BLOCKS} 2>/dev/null 1>/dev/null"
+                  COMMAND diskimg -c ${EXECTOS_BINARY_DIR}/output/binaries -f 32 -o ${EXECTOS_BINARY_DIR}/output/disk.img -s ${PROJECT_DISK_IMAGE_SIZE}
-                  COMMAND parted ${EXECTOS_BINARY_DIR}/output/disk.img -s -a minimal mklabel gpt
+                  -m ${EXECTOS_BINARY_DIR}/boot/bootsect/mbrboot.bin -v ${EXECTOS_BINARY_DIR}/boot/bootsect/espboot.bin
-                  COMMAND parted ${EXECTOS_BINARY_DIR}/output/disk.img -s -a minimal mkpart EFI FAT32 2048s ${PROJECT_PART_IMAGE_BLOCKS}s
-                  COMMAND parted ${EXECTOS_BINARY_DIR}/output/disk.img -s -a minimal toggle 1 boot
-                  COMMAND sh -c "dd if=/dev/zero of=${EXECTOS_BINARY_DIR}/output/part.img bs=512 count=${PROJECT_PART_IMAGE_BLOCKS} 2>/dev/null 1>/dev/null"
-                  COMMAND mformat -i ${EXECTOS_BINARY_DIR}/output/part.img -h32 -t32 -n64 -L32
-                  COMMAND sh -c "mcopy -s -i ${EXECTOS_BINARY_DIR}/output/part.img ${EXECTOS_BINARY_DIR}/output/binaries/* ::"
-                  COMMAND sh -c "dd if=${EXECTOS_BINARY_DIR}/output/part.img of=${EXECTOS_BINARY_DIR}/output/disk.img bs=512 count=${PROJECT_PART_IMAGE_BLOCKS} seek=2048 conv=notrunc 2>/dev/null 1>/dev/null"
-                  COMMAND rm ${EXECTOS_BINARY_DIR}/output/part.img
                   VERBATIM)
 
-# This target starts up a BOCHS+OVMF virtual machine
+find_program(BOCHS_EMULATOR bochs)
+if(BOCHS_EMULATOR)
+    # This target starts up a BOCHS+BIOS virtual machine
     add_custom_target(bochsvm
                       DEPENDS diskimg
                       COMMAND bochs -f ../sdk/firmware/bochsrc_${ARCH}.cfg -q -unlock
                       VERBATIM USES_TERMINAL)
+endif()
 
+find_program(QEMU_EMULATOR ${QEMU_COMMAND})
+if(QEMU_EMULATOR)
+    if(CMAKE_HOST_LINUX)
         # This target starts up a QEMU+OVMF virtual machine using KVM accelerator
-add_custom_target(testkvm
+        add_custom_target(testefikvm
-                  DEPENDS diskimg
+                          DEPENDS install
-                  COMMAND ${QEMU_COMMAND} -name "ExectOS-${ARCH}-KVM" -machine type=q35,kernel_irqchip=on,accel=kvm,mem-merge=off,vmport=off -enable-kvm -cpu host,-hypervisor,+topoext
+                          COMMAND ${QEMU_COMMAND} -name "ExectOS-${ARCH}-EFI-KVM" -machine type=q35,kernel_irqchip=on,accel=kvm,mem-merge=off,vmport=off -enable-kvm -cpu host,-hypervisor,+topoext
                                                   -smp 2,sockets=1,cores=1,threads=2 -m 4G -overcommit mem-lock=off -rtc clock=host,base=localtime,driftfix=none
-                                          -drive file=${EXECTOS_SOURCE_DIR}/sdk/firmware/ovmf_code_${ARCH}.fd,if=pflash,format=raw,unit=0,readonly=on
+                                                  -bios ${EXECTOS_SOURCE_DIR}/sdk/firmware/ovmf_${ARCH}.fd
-                                          -drive file=${EXECTOS_SOURCE_DIR}/sdk/firmware/ovmf_vars_${ARCH}.fd,if=pflash,format=raw,unit=1
+                                                  -hda fat:rw:${EXECTOS_BINARY_DIR}/output/binaries
-                                          -hda ${EXECTOS_BINARY_DIR}/output/disk.img
                                                   -boot menu=on -d int -M smm=off -no-reboot -no-shutdown -serial stdio
                           VERBATIM USES_TERMINAL)
+    elseif(CMAKE_HOST_WIN32)
+        # This target starts up a QEMU+OVMF virtual machine using WHPX accelerator
+        add_custom_target(testefiwhpx
+                          DEPENDS install
+                          COMMAND ${QEMU_COMMAND} -name "ExectOS-${ARCH}-EFI-WHPX" -machine type=q35,kernel_irqchip=off,accel=whpx,mem-merge=off,vmport=off
+                                                  -m 4G -overcommit mem-lock=off -rtc clock=host,base=localtime,driftfix=none
+                                                  -bios ${EXECTOS_SOURCE_DIR}/sdk/firmware/ovmf_${ARCH}.fd
+                                                  -hda fat:rw:${EXECTOS_BINARY_DIR}/output/binaries
+                                                  -boot menu=on -d int -M smm=off -no-reboot -no-shutdown -serial stdio
+                          VERBATIM USES_TERMINAL)
+    endif()
 
     # This target starts up a QEMU+OVMF virtual machine using TCG accelerator
+    add_custom_target(testefitcg
+                      DEPENDS install
+                      COMMAND ${QEMU_COMMAND} -name "ExectOS-${ARCH}-EFI-TCG" -machine type=q35,accel=tcg -cpu max,-hypervisor
+                                              -smp 2,sockets=1,cores=1,threads=2 -m 4G -overcommit mem-lock=off -rtc clock=host,base=localtime,driftfix=none
+                                              -bios ${EXECTOS_SOURCE_DIR}/sdk/firmware/ovmf_${ARCH}.fd
+                                              -hda fat:rw:${EXECTOS_BINARY_DIR}/output/binaries
+                                              -boot menu=on -d int -no-reboot -no-shutdown -serial stdio
+                      VERBATIM USES_TERMINAL)
+
+    if(CMAKE_HOST_LINUX)
+        # This target starts up a QEMU+SEABIOS virtual machine using KVM accelerator
+        add_custom_target(testkvm
+                          DEPENDS diskimg
+                          COMMAND ${QEMU_COMMAND} -name "ExectOS-${ARCH}-BIOS-KVM" -machine type=q35,kernel_irqchip=on,accel=kvm,mem-merge=off,vmport=off -enable-kvm -cpu host,-hypervisor,+topoext
+                                                  -smp 2,sockets=1,cores=1,threads=2 -m 4G -overcommit mem-lock=off -rtc clock=host,base=localtime,driftfix=none
+                                                  -hda ${EXECTOS_BINARY_DIR}/output/disk.img
+                                                  -boot menu=on -d int -no-reboot -no-shutdown -serial stdio
+                          VERBATIM USES_TERMINAL)
+    elseif(CMAKE_HOST_WIN32)
+        # This target starts up a QEMU+SEABIOS virtual machine using WHPX accelerator
+        add_custom_target(testwhpx
+                          DEPENDS diskimg
+                          COMMAND ${QEMU_COMMAND} -name "ExectOS-${ARCH}-BIOS-WHPX" -machine type=q35,kernel_irqchip=off,accel=whpx,mem-merge=off,vmport=off
+                                                  -m 4G -overcommit mem-lock=off -rtc clock=host,base=localtime,driftfix=none
+                                                  -hda ${EXECTOS_BINARY_DIR}/output/disk.img
+                                                  -boot menu=on -d int -no-reboot -no-shutdown -serial stdio
+                          VERBATIM USES_TERMINAL)
+    endif()
+
+    # This target starts up a QEMU+SEABIOS virtual machine using TCG accelerator
     add_custom_target(testtcg
                       DEPENDS diskimg
-                  COMMAND ${QEMU_COMMAND} -name "ExectOS-${ARCH}-TCG" -machine type=q35,accel=tcg -cpu max,-hypervisor
+                      COMMAND ${QEMU_COMMAND} -name "ExectOS-${ARCH}-BIOS-TCG" -machine type=q35,accel=tcg -cpu max,-hypervisor
                                               -smp 2,sockets=1,cores=1,threads=2 -m 4G -overcommit mem-lock=off -rtc clock=host,base=localtime,driftfix=none
-                                          -drive file=${EXECTOS_SOURCE_DIR}/sdk/firmware/ovmf_code_${ARCH}.fd,if=pflash,format=raw,unit=0,readonly=on
-                                          -drive file=${EXECTOS_SOURCE_DIR}/sdk/firmware/ovmf_vars_${ARCH}.fd,if=pflash,format=raw,unit=1
                                               -hda ${EXECTOS_BINARY_DIR}/output/disk.img
-                                          -boot menu=on -d int -M smm=off -no-reboot -no-shutdown -serial stdio
+                                              -boot menu=on -d int -no-reboot -no-shutdown -serial stdio
                       VERBATIM USES_TERMINAL)
+endif()

sdk/cmake/functions.cmake

@@ -59,18 +59,48 @@ function(add_module_linker_flags MODULE FLAGS)
     set_module_property(${MODULE} LINK_FLAGS ${FLAGS})
 endfunction()
 
-# This function sets a property for specified module
+# This function compiles an assembly bootsector file into a flat binary
-function(set_module_property MODULE PROPERTY FLAGS)
+function(compile_bootsector NAME SOURCE BASEADDR ENTRYPOINT)
-    if(NOT ${ARGC} EQUAL 3)
+    set(BINARY_NAME "${NAME}.bin")
-        message(FATAL_ERROR "Invalid number of arguments passwd to add_module_property() function")
+    set(OBJECT_NAME "${NAME}.obj")
-    endif()
+
-    get_target_property(VAL ${MODULE} ${PROPERTY})
+    get_directory_property(DEFS COMPILE_DEFINITIONS)
-    if(VAL)
+    foreach(def ${DEFS})
-        set(VAL "${VAL} ${FLAGS}")
+        list(APPEND ASM_DEFS "-D${def}")
-    else()
+    endforeach()
-        set(VAL "${FLAGS}")
+
-    endif()
+    add_custom_command(
-    set_property(TARGET ${MODULE} PROPERTY ${PROPERTY} ${VAL})
+        OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${BINARY_NAME}
+        COMMAND ${CMAKE_ASM_COMPILER}
+            /nologo
+            --target=i386-none-elf
+            ${ASM_DEFS}
+            -I${CMAKE_CURRENT_SOURCE_DIR}
+            /Fo${CMAKE_CURRENT_BINARY_DIR}/${OBJECT_NAME}
+            -c -- ${SOURCE}
+        COMMAND ${CMAKE_ASM_LINKER}
+            -m elf_i386
+            --image-base=0
+            --oformat binary
+            -Ttext=${BASEADDR}
+            --entry=_start${ENTRYPOINT}
+            -o ${CMAKE_CURRENT_BINARY_DIR}/${BINARY_NAME}
+            ${CMAKE_CURRENT_BINARY_DIR}/${OBJECT_NAME}
+        DEPENDS ${SOURCE}
+    )
+
+    add_custom_target(${NAME} ALL
+        DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${BINARY_NAME}
+    )
+endfunction()
+
+# This function sets the the qemu disk image size (in MiB)
+function(set_disk_image_size SIZE)
+	MATH(EXPR DISK_BLOCKS ${SIZE}*1024*1024/512)
+	MATH(EXPR PART_BLOCKS ${DISK_BLOCKS}-2048)
+	set(PROJECT_DISK_IMAGE_SIZE ${SIZE} CACHE INTERNAL "PROJECT_DISK_IMAGE_SIZE")
+	set(PROJECT_DISK_IMAGE_BLOCKS ${DISK_BLOCKS} CACHE INTERNAL "PROJECT_DISK_IMAGE_BLOCKS")
+	set(PROJECT_PART_IMAGE_BLOCKS ${PART_BLOCKS} CACHE INTERNAL "PROJECT_PART_IMAGE_BLOCKS")
 endfunction()
 
 # This function installs specified directory recursively under destination directory
@@ -85,9 +115,28 @@ endfunction()
 
 # This function installs specified target results under destination directory
 function(set_install_target TARGET DESTINATION)
+    set_target_properties(${TARGET} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "${EXECTOS_BINARY_DIR}/output/sdk/lib")
     install(TARGETS ${TARGET} DESTINATION ${EXECTOS_BINARY_DIR}/output/binaries/${DESTINATION})
 endfunction()
 
+# This function sets a property for specified module
+function(set_module_property MODULE PROPERTY FLAGS)
+    if(NOT ${ARGC} EQUAL 3)
+        message(FATAL_ERROR "Invalid number of arguments passwd to add_module_property() function")
+    endif()
+    get_target_property(VAL ${MODULE} ${PROPERTY})
+    if(VAL)
+        set(VAL "${VAL} ${FLAGS}")
+    else()
+        set(VAL "${FLAGS}")
+    endif()
+    set_property(TARGET ${MODULE} PROPERTY ${PROPERTY} ${VAL})
+endfunction()
+
+function(set_sdk_target FILENAME DESTINATION)
+    install(DIRECTORY ${FILENAME} DESTINATION ${EXECTOS_BINARY_DIR}/output/sdk/${DESTINATION})
+endfunction()
+
 # This function is responsible for compiling module SPEC file
 function(set_specfile SPECFILE EXPORTNAME)
     if(NOT ${ARGC} EQUAL 2)
@@ -97,11 +146,3 @@ function(set_specfile SPECFILE EXPORTNAME)
     add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${FILENAME}.def ${CMAKE_CURRENT_BINARY_DIR}/${FILENAME}.c
                        COMMAND ${CMAKE_SPEC_COMPILER} -a=${ARCH} -n=${EXPORTNAME} -d=${CMAKE_CURRENT_BINARY_DIR}/${FILENAME}.def -s=${CMAKE_CURRENT_BINARY_DIR}/${FILENAME}.c ${CMAKE_CURRENT_SOURCE_DIR}/${SPECFILE})
 endfunction()
-
-# This function sets the the qemu disk image size (in MiB)
-function(set_disk_image_size SIZE)
-	MATH(EXPR DISK_BLOCKS ${SIZE}*1024*1024/512)
-	MATH(EXPR PART_BLOCKS ${DISK_BLOCKS}-2048)
-	set(PROJECT_DISK_IMAGE_BLOCKS ${DISK_BLOCKS} CACHE INTERNAL "PROJECT_DISK_IMAGE_BLOCKS")
-	set(PROJECT_PART_IMAGE_BLOCKS ${PART_BLOCKS} CACHE INTERNAL "PROJECT_PART_IMAGE_BLOCKS")
-endfunction()

sdk/cmake/toolchain.cmake

@@ -3,8 +3,10 @@ set(CMAKE_SYSTEM_NAME Windows)
 
 # Set toolchain compilers
 set(CMAKE_ASM_COMPILER clang-cl)
+set(CMAKE_ASM_LINKER ld.lld)
 set(CMAKE_C_COMPILER clang-cl)
 set(CMAKE_CXX_COMPILER clang-cl)
+set(CMAKE_LINKER lld-link)
 set(CMAKE_MC_COMPILER wmc)
 set(CMAKE_RC_COMPILER wrc)
 set(CMAKE_SPEC_COMPILER xtcspecc)
@@ -20,8 +22,9 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_C_STANDARD 23)
 set(CMAKE_CXX_STANDARD 23)
 
-# Disable standard C libraries
+# Disable standard C and C++ libraries
 set(CMAKE_C_STANDARD_LIBRARIES "" CACHE INTERNAL "")
+set(CMAKE_CXX_STANDARD_LIBRARIES "" CACHE INTERNAL "")
 
 # Clean linker flags
 set(CMAKE_STATIC_LINKER_FLAGS "")

sdk/cmake/xtchain.cmake

@@ -11,11 +11,10 @@ endif()
 
 # Set build optimisation
 if(BUILD_TYPE STREQUAL "DEBUG")
-    add_compiler_ccxxflags("/Zi")
+    add_compiler_ccxxflags("/GS- /Zi /Ob0 /Od")
-    add_compiler_ccxxflags("-Ob0 -Od")
+    add_linker_flags("/DEBUG /INCREMENTAL:NO /OPT:REF /OPT:NOICF /PDBSOURCEPATH:build")
-    add_linker_flags("/DEBUG /INCREMENTAL /OPT:NOREF /OPT:NOICF /PDBSOURCEPATH:build")
 else()
-    add_compiler_ccxxflags("-Ob2 -Oy")
+    add_compiler_ccxxflags("/GS- /Ob2 /Ot /Ox /Oy")
     add_linker_flags("/INCREMENTAL:NO /OPT:REF /OPT:ICF")
 endif()
 
@@ -48,8 +47,12 @@ add_compiler_ccxxflags("-nostdinc -Wno-char-subscripts -Wno-incompatible-library
 add_compiler_ccxxflags("-Wno-microsoft-enum-forward-reference -Wno-multichar -Wno-parentheses-equality -Wno-undefined-inline")
 add_compiler_ccxxflags("-Wno-gnu-folding-constant")
 
-# Set debugging symbols output directory
+# Disable compiler builtins
+add_compiler_ccxxflags("-fno-builtin")
+
+# Set symbols and libraries output directory
 set(CMAKE_PDB_OUTPUT_DIRECTORY "${EXECTOS_BINARY_DIR}/output/symbols")
+set(LIBRARY_OUTPUT_PATH "${EXECTOS_BINARY_DIR}/output/sdk/lib")
 
 # Set linker flags
 add_linker_flags("${HOTPATCH_LINKER_FLAG} /LARGEADDRESSAWARE /IGNORE:4039 /IGNORE:4104 /MANIFEST:NO /NODEFAULTLIB /SAFESEH:NO")

sdk/firmware/bochsrc_amd64.cfg

@@ -3,9 +3,9 @@ plugin_ctrl: usb_xhci=false, serial=true, e1000=false, extfpuirq=true, parallel=
 config_interface: textconfig
 display_library: x
 memory: host=64, guest=64
-romimage: file="../sdk/firmware/ovmf_pure_amd64.fd", address=0x00000000, options=none
+romimage: file="../sdk/firmware/rombios.bin", address=0x00000000, options=none
 vgaromimage: file="../sdk/firmware/vgabios.bin"
-boot: floppy
+boot: disk
 floppy_bootsig_check: disabled=0
 floppya: type=1_44
 # no floppyb
@@ -27,11 +27,7 @@ optramimage3: file=none
 optramimage4: file=none
 pci: enabled=1, chipset=i440fx, slot1=cirrus, slot2=none, slot3=none, slot4=none, slot5=none
 vga: extension=cirrus, update_freq=5, realtime=1, ddc=builtin
-cpu: count=1:1:1, ips=400000000, quantum=16, model=bx_generic, reset_on_triple_fault=0, cpuid_limit_winnt=0, ignore_bad_msrs=1, mwait_is_nop=0
+cpu: count=1:1:1, ips=400000000, quantum=16, model=corei7_sandy_bridge_2600k, reset_on_triple_fault=0, cpuid_limit_winnt=0, ignore_bad_msrs=1, mwait_is_nop=0
-cpuid: level=6, stepping=3, model=3, family=6, vendor_string="GenuineIntel", brand_string="              Intel(R) Pentium(R) 4 CPU        "
-cpuid: mmx=true, apic=xapic, simd=sse4_2, sse4a=false, misaligned_sse=false, sep=true
-cpuid: movbe=false, adx=false, aes=false, sha=false, xsave=false, xsaveopt=false, x86_64=true
-cpuid: 1g_pages=false, pcid=false, fsgsbase=false, smep=false, smap=false, mwait=true
 print_timestamps: enabled=0
 port_e9_hack: enabled=0
 private_colormap: enabled=0

sdk/firmware/bochsrc_i686.cfg

@@ -3,9 +3,9 @@ plugin_ctrl: usb_xhci=false, serial=true, e1000=false, extfpuirq=true, parallel=
 config_interface: textconfig
 display_library: x
 memory: host=64, guest=64
-romimage: file="../sdk/firmware/ovmf_pure_i686.fd", address=0x00000000, options=none
+romimage: file="../sdk/firmware/rombios.bin", address=0x00000000, options=none
 vgaromimage: file="../sdk/firmware/vgabios.bin"
-boot: floppy
+boot: disk
 floppy_bootsig_check: disabled=0
 floppya: type=1_44
 # no floppyb
@@ -27,11 +27,7 @@ optramimage3: file=none
 optramimage4: file=none
 pci: enabled=1, chipset=i440fx, slot1=cirrus, slot2=none, slot3=none, slot4=none, slot5=none
 vga: extension=cirrus, update_freq=5, realtime=1, ddc=builtin
-cpu: count=1:1:1, ips=400000000, quantum=16, model=bx_generic, reset_on_triple_fault=0, cpuid_limit_winnt=0, ignore_bad_msrs=1, mwait_is_nop=0
+cpu: count=1:1:1, ips=400000000, quantum=16, model=corei7_sandy_bridge_2600k, reset_on_triple_fault=0, cpuid_limit_winnt=0, ignore_bad_msrs=1, mwait_is_nop=0
-cpuid: level=6, stepping=3, model=3, family=6, vendor_string="GenuineIntel", brand_string="              Intel(R) Pentium(R) 4 CPU        "
-cpuid: mmx=true, apic=xapic, simd=sse4_2, sse4a=false, misaligned_sse=false, sep=true
-cpuid: movbe=false, adx=false, aes=false, sha=false, xsave=false, xsaveopt=false, x86_64=true
-cpuid: 1g_pages=false, pcid=false, fsgsbase=false, smep=false, smap=false, mwait=true
 print_timestamps: enabled=0
 port_e9_hack: enabled=0
 private_colormap: enabled=0

sdk/xtbk/README.md

@@ -1,13 +0,0 @@
-## XT Building Kit (XTBK)
-The XTBK, or XT Building Kit is a kind of SDK (Software Development Kit) utilized internally by XTOS, the XT Operating
-System. It is designed to provide a collection of public functions that are available within the operating system but
-not necessarily exposed or accessible to software and driver developers.
-
-Unlike XTDK, which focuses on providing headers for external developers to create kernel mode drivers and user mode
-applications, XTBK serves as an extension to XTDK and aids in the code-sharing process between different XTOS
-components. This enables the reuse of code across various components of the operating system, resulting in a more
-efficient and streamlined development process.
-
-By incorporating XTBK, XTOS can optimize code reuse, particularly in low-level kernel code that can be shared with other
-components like the boot loader. This approach helps in reducing code duplication and improving overall code
-maintainability. Additionally, it allows for consistent implementation of functionality across different parts of the OS.

sdk/xtdk/amd64/arfuncs.h

@@ -1,44 +0,0 @@
-/**
- * PROJECT:         ExectOS
- * COPYRIGHT:       See COPYING.md in the top level directory
- * FILE:            sdk/xtdk/amd64/arfuncs.h
- * DESCRIPTION:     AMD64 architecture library routines
- * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
- */
-
-#ifndef __XTDK_AMD64_ARFUNCS_H
-#define __XTDK_AMD64_ARFUNCS_H
-
-#include <xtdefs.h>
-#include <xtstruct.h>
-#include <xttypes.h>
-#include <amd64/xtstruct.h>
-
-
-/* Routines used by XTLDR */
-XTCDECL
-VOID
-ArClearInterruptFlag(VOID);
-
-XTCDECL
-BOOLEAN
-ArCpuId(IN OUT PCPUID_REGISTERS Registers);
-
-XTCDECL
-VOID
-ArHalt(VOID);
-
-XTCDECL
-ULONG_PTR
-ArReadControlRegister(IN USHORT ControlRegister);
-
-XTCDECL
-ULONGLONG
-ArReadModelSpecificRegister(IN ULONG Register);
-
-XTCDECL
-VOID
-ArWriteControlRegister(IN USHORT ControlRegister,
-                       IN UINT_PTR Value);
-
-#endif /* __XTDK_AMD64_ARFUNCS_H */

sdk/xtdk/amd64/artypes.h

@@ -39,13 +39,22 @@
 #define CR4_PCE                                         0x00000100
 #define CR4_FXSR                                        0x00000200
 #define CR4_XMMEXCPT                                    0x00000400
+#define CR4_UMIP                                        0x00000800
 #define CR4_LA57                                        0x00001000
-#define CR4_RESERVED1                                   0x00001800
 #define CR4_VMXE                                        0x00002000
 #define CR4_SMXE                                        0x00004000
-#define CR4_RESERVED2                                   0x00018000
+#define CR4_FSGSBASE                                    0x00010000
-#define CR4_XSAVE                                       0x00020000
+#define CR4_PCIDE                                       0x00020000
-#define CR4_RESERVED3                                   0xFFFC0000
+#define CR4_XSAVE                                       0x00040000
+#define CR4_KL                                          0x00080000
+#define CR4_SMEP                                        0x00100000
+#define CR4_SMAP                                        0x00200000
+#define CR4_PKE                                         0x00400000
+#define CR4_CET                                         0x00800000
+#define CR4_PKS                                         0x01000000
+#define CR4_UINTR                                       0x02000000
+#define CR4_LASS                                        0x08000000
+#define CR4_LAM_SUP                                     0x10000000
 
 /* Descriptors size */
 #define GDT_ENTRIES                                     128
@@ -84,6 +93,7 @@
 #define X86_MSR_FSBASE                                  0xC0000100
 #define X86_MSR_GSBASE                                  0xC0000101
 #define X86_MSR_KERNEL_GSBASE                           0xC0000102
+#define X86_MSR_TSC_AUX                                 0xC0000103
 
 /* Processor features in the EFER MSR */
 #define X86_MSR_EFER_SCE                                (1 <<  0)
@@ -91,6 +101,10 @@
 #define X86_MSR_EFER_LMA                                (1 << 10)
 #define X86_MSR_EFER_NXE                                (1 << 11)
 #define X86_MSR_EFER_SVME                               (1 << 12)
+#define X86_EFER_LMSLE                                  (1 << 13)
+#define X86_EFER_FFXSR                                  (1 << 14)
+#define X86_EFER_TCE                                    (1 << 15)
+#define X86_EFER_AUTOIBRS                               (1 << 21)
 
 /* X86 EFLAG bit masks definitions */
 #define X86_EFLAGS_NF_MASK                              0x00000000 /* None */
@@ -121,8 +135,49 @@ typedef enum _CPU_VENDOR
     CPU_VENDOR_UNKNOWN = 0xFFFFFFFF
 } CPU_VENDOR, *PCPU_VENDOR;
 
-/* CPUID features enumeration list */
+/* CPUID extended features (0x80000001) enumeration list */
-typedef enum _CPUID_FEATURES
+typedef enum _CPUID_FEATURES_EXTENDED
+{
+    CPUID_FEATURES_ECX_LAHF_SAHF              = 1 << 0,
+    CPUID_FEATURES_ECX_CMP_LEGACY             = 1 << 1,
+    CPUID_FEATURES_ECX_SVM                    = 1 << 2,
+    CPUID_FEATURES_ECX_EXT_APIC_SPACE         = 1 << 3,
+    CPUID_FEATURES_ECX_ALT_MOV_CR8            = 1 << 4,
+    CPUID_FEATURES_ECX_LZCNT                  = 1 << 5,
+    CPUID_FEATURES_ECX_SSE4A                  = 1 << 6,
+    CPUID_FEATURES_ECX_MISALIGNED_SSE         = 1 << 7,
+    CPUID_FEATURES_ECX_PREFETCHW              = 1 << 8,
+    CPUID_FEATURES_ECX_OSVW                   = 1 << 9,
+    CPUID_FEATURES_ECX_IBS                    = 1 << 10,
+    CPUID_FEATURES_ECX_XOP                    = 1 << 11,
+    CPUID_FEATURES_ECX_SKINIT                 = 1 << 12,
+    CPUID_FEATURES_ECX_WDT                    = 1 << 13,
+    CPUID_FEATURES_ECX_LWP                    = 1 << 15,
+    CPUID_FEATURES_ECX_FMA4                   = 1 << 16,
+    CPUID_FEATURES_ECX_TCE                    = 1 << 17,
+    CPUID_FEATURES_ECX_NODEID                 = 1 << 19,
+    CPUID_FEATURES_ECX_TBM                    = 1 << 21,
+    CPUID_FEATURES_ECX_TOPOLOGY_EXTENSIONS    = 1 << 22,
+    CPUID_FEATURES_ECX_PERFCTR_EXT_CORE       = 1 << 23,
+    CPUID_FEATURES_ECX_PERFCTR_EXT_NB         = 1 << 24,
+    CPUID_FEATURES_ECX_DATA_BREAKPOINT_EXT    = 1 << 26,
+    CPUID_FEATURES_ECX_PERF_TSC               = 1 << 27,
+    CPUID_FEATURES_ECX_PERFCTR_EXT_L2I        = 1 << 28,
+    CPUID_FEATURES_ECX_MONITORX_MWAITX        = 1 << 29,
+    CPUID_FEATURES_ECX_CODEBP_ADDRMASK_EXT    = 1 << 30,
+    CPUID_FEATURES_EDX_SYSCALL_SYSRET         = 1 << 11,
+    CPUID_FEATURES_EDX_NX                     = 1 << 20,
+    CPUID_FEATURES_EDX_AMD_MMX_EXT            = 1 << 22,
+    CPUID_FEATURES_EDX_FFXSR                  = 1 << 25,
+    CPUID_FEATURES_EDX_1G_PAGES               = 1 << 26,
+    CPUID_FEATURES_EDX_RDTSCP                 = 1 << 27,
+    CPUID_FEATURES_EDX_LONG_MODE              = 1 << 29,
+    CPUID_FEATURES_EDX_3DNOW_EXT              = 1 << 30,
+    CPUID_FEATURES_EDX_3DNOW                  = 1 << 31
+} CPUID_FEATURES_EXTENDED, *PCPUID_FEATURES_EXTENDED;
+
+/* CPUID STD1 features (0x00000001) enumeration list */
+typedef enum _CPUID_FEATURES_STANDARD1
 {
     CPUID_FEATURES_ECX_SSE3                   = 1 << 0,
     CPUID_FEATURES_ECX_PCLMUL                 = 1 << 1,
@@ -185,15 +240,150 @@ typedef enum _CPUID_FEATURES
     CPUID_FEATURES_EDX_TM                     = 1 << 29,
     CPUID_FEATURES_EDX_IA64                   = 1 << 30,
     CPUID_FEATURES_EDX_PBE                    = 1 << 31
-} CPUID_FEATURES, *PCPUID_FEATURES;
+} CPUID_FEATURES_STANDARD1, *PCPUID_FEATURES_STANDARD1;
+
+/* CPUID STD7 features (0x00000007, subleaf 0) enumeration list */
+typedef enum _CPUID_FEATURES_STANDARD7_LEAF0
+{
+    CPUID_FEATURES_EBX_FSGSBASE               = 1 << 0,
+    CPUID_FEATURES_EBX_TSC_ADJUST             = 1 << 1,
+    CPUID_FEATURES_EBX_SGX                    = 1 << 2,
+    CPUID_FEATURES_EBX_BMI1                   = 1 << 3,
+    CPUID_FEATURES_EBX_HLE                    = 1 << 4,
+    CPUID_FEATURES_EBX_AVX2                   = 1 << 5,
+    CPUID_FEATURES_EBX_FDP_DEPRECATION        = 1 << 6,
+    CPUID_FEATURES_EBX_SMEP                   = 1 << 7,
+    CPUID_FEATURES_EBX_BMI2                   = 1 << 8,
+    CPUID_FEATURES_EBX_ERMS                   = 1 << 9,
+    CPUID_FEATURES_EBX_INVPCID                = 1 << 10,
+    CPUID_FEATURES_EBX_RTM                    = 1 << 11,
+    CPUID_FEATURES_EBX_QOS_MONITORING         = 1 << 12,
+    CPUID_FEATURES_EBX_DEPRECATE_FCS_FDS      = 1 << 13,
+    CPUID_FEATURES_EBX_MPX                    = 1 << 14,
+    CPUID_FEATURES_EBX_QOS_ENFORCEMENT        = 1 << 15,
+    CPUID_FEATURES_EBX_AVX512F                = 1 << 16,
+    CPUID_FEATURES_EBX_AVX512DQ               = 1 << 17,
+    CPUID_FEATURES_EBX_RDSEED                 = 1 << 18,
+    CPUID_FEATURES_EBX_ADX                    = 1 << 19,
+    CPUID_FEATURES_EBX_SMAP                   = 1 << 20,
+    CPUID_FEATURES_EBX_AVX512IFMA52           = 1 << 21,
+    CPUID_FEATURES_EBX_CLFLUSHOPT             = 1 << 23,
+    CPUID_FEATURES_EBX_CLWB                   = 1 << 24,
+    CPUID_FEATURES_EBX_PROCESSOR_TRACE        = 1 << 25,
+    CPUID_FEATURES_EBX_AVX512PF               = 1 << 26,
+    CPUID_FEATURES_EBX_AVX512ER               = 1 << 27,
+    CPUID_FEATURES_EBX_AVX512CD               = 1 << 28,
+    CPUID_FEATURES_EBX_SHA                    = 1 << 29,
+    CPUID_FEATURES_EBX_AVX512BW               = 1 << 30,
+    CPUID_FEATURES_EBX_AVX512VL               = 1 << 31,
+    CPUID_FEATURES_ECX_PREFETCHWT1            = 1 << 0,
+    CPUID_FEATURES_ECX_AVX512_VBMI            = 1 << 1,
+    CPUID_FEATURES_ECX_UMIP                   = 1 << 2,
+    CPUID_FEATURES_ECX_PKU                    = 1 << 3,
+    CPUID_FEATURES_ECX_OSPKE                  = 1 << 4,
+    CPUID_FEATURES_ECX_WAITPKG                = 1 << 5,
+    CPUID_FEATURES_ECX_AVX512_VBMI2           = 1 << 6,
+    CPUID_FEATURES_ECX_CET_SS                 = 1 << 7,
+    CPUID_FEATURES_ECX_GFNI                   = 1 << 8,
+    CPUID_FEATURES_ECX_VAES                   = 1 << 9,
+    CPUID_FEATURES_ECX_VPCLMULQDQ             = 1 << 10,
+    CPUID_FEATURES_ECX_AVX512_VNNI            = 1 << 11,
+    CPUID_FEATURES_ECX_AVX512_BITALG          = 1 << 12,
+    CPUID_FEATURES_ECX_TME                    = 1 << 13,
+    CPUID_FEATURES_ECX_AVX512_VPOPCNTDQ       = 1 << 14,
+    CPUID_FEATURES_ECX_LA57                   = 1 << 16,
+    CPUID_FEATURES_ECX_RDPID                  = 1 << 22,
+    CPUID_FEATURES_ECX_KEYLOCKER              = 1 << 23,
+    CPUID_FEATURES_ECX_BUS_LOCK_DETECT        = 1 << 24,
+    CPUID_FEATURES_ECX_CLDEMOTE               = 1 << 25,
+    CPUID_FEATURES_ECX_MOVDIRI                = 1 << 27,
+    CPUID_FEATURES_ECX_MOVDIR64B              = 1 << 28,
+    CPUID_FEATURES_ECX_ENQCMD                 = 1 << 29,
+    CPUID_FEATURES_ECX_SGX_LAUNCH_CONFIG      = 1 << 30,
+    CPUID_FEATURES_ECX_PKS                    = 1 << 31,
+    CPUID_FEATURES_EDX_SGX_KEYS               = 1 << 1,
+    CPUID_FEATURES_EDX_AVX512_4VNNIW          = 1 << 2,
+    CPUID_FEATURES_EDX_AVX512_4FMAPS          = 1 << 3,
+    CPUID_FEATURES_EDX_FAST_SHORT_REP_MOV     = 1 << 4,
+    CPUID_FEATURES_EDX_UINTR                  = 1 << 5,
+    CPUID_FEATURES_EDX_AVX512_VPINTERSECT     = 1 << 8,
+    CPUID_FEATURES_EDX_SRBDS_CTRL             = 1 << 9,
+    CPUID_FEATURES_EDX_MD_CLEAR               = 1 << 10,
+    CPUID_FEATURES_EDX_RTM_ALWAYS_ABORT       = 1 << 11,
+    CPUID_FEATURES_EDX_RTM_FORCE_ABORT        = 1 << 13,
+    CPUID_FEATURES_EDX_SERIALIZE              = 1 << 14,
+    CPUID_FEATURES_EDX_HYBRID                 = 1 << 15,
+    CPUID_FEATURES_EDX_TSXLDTRK               = 1 << 16,
+    CPUID_FEATURES_EDX_PCONFIG                = 1 << 18,
+    CPUID_FEATURES_EDX_ARCH_LBR               = 1 << 19,
+    CPUID_FEATURES_EDX_CET_IBT                = 1 << 20,
+    CPUID_FEATURES_EDX_AMX_BF16               = 1 << 22,
+    CPUID_FEATURES_EDX_AVX512_FP16            = 1 << 23,
+    CPUID_FEATURES_EDX_AMX_TILE               = 1 << 24,
+    CPUID_FEATURES_EDX_AMX_INT8               = 1 << 25,
+    CPUID_FEATURES_EDX_SCA_IBRS_IBPB          = 1 << 26,
+    CPUID_FEATURES_EDX_SCA_STIBP              = 1 << 27,
+    CPUID_FEATURES_EDX_L1D_FLUSH              = 1 << 28,
+    CPUID_FEATURES_EDX_ARCH_CAPABILITIES_MSR  = 1 << 29,
+    CPUID_FEATURES_EDX_CORE_CAPABILITIES_MSR  = 1 << 30,
+    CPUID_FEATURES_EDX_SCA_SSBD               = 1 << 31
+} CPUID_FEATURES_STANDARD7_LEAF0, *PCPUID_FEATURES_STANDARD7_LEAF0;
+
+/* CPUID STD7 features (0x00000007, subleaf 1) enumeration list */
+typedef enum _CPUID_FEATURES_STANDARD7_LEAF1
+{
+    CPUID_FEATURES_EAX_SHA512                 = 1 << 0,
+    CPUID_FEATURES_EAX_SM3                    = 1 << 1,
+    CPUID_FEATURES_EAX_SM4                    = 1 << 2,
+    CPUID_FEATURES_EAX_RAO_INT                = 1 << 3,
+    CPUID_FEATURES_EAX_AVX_VNNI               = 1 << 4,
+    CPUID_FEATURES_EAX_AVX512_BF16            = 1 << 5,
+    CPUID_FEATURES_EAX_LASS                   = 1 << 6,
+    CPUID_FEATURES_EAX_CMPCCXADD              = 1 << 7,
+    CPUID_FEATURES_EAX_ARCH_PERFMON           = 1 << 8,
+    CPUID_FEATURES_EAX_FAST_ZEROLEN_REP_MOVSB = 1 << 10,
+    CPUID_FEATURES_EAX_FAST_ZEROLEN_REP_STOSB = 1 << 11,
+    CPUID_FEATURES_EAX_FAST_ZEROLEN_REP_CMPSB = 1 << 12,
+    CPUID_FEATURES_EAX_FRED                   = 1 << 17,
+    CPUID_FEATURES_EAX_LKGS                   = 1 << 18,
+    CPUID_FEATURES_EAX_WRMSRNS                = 1 << 19,
+    CPUID_FEATURES_EAX_NMI_SOURCE_REPORTING   = 1 << 20,
+    CPUID_FEATURES_EAX_AMX_FP16               = 1 << 21,
+    CPUID_FEATURES_EAX_HRESET                 = 1 << 22,
+    CPUID_FEATURES_EAX_AVX_IFMA               = 1 << 23,
+    CPUID_FEATURES_EAX_LAM                    = 1 << 26,
+    CPUID_FEATURES_EAX_MSRLIST                = 1 << 27,
+    CPUID_FEATURES_EAX_INVD_DISABLE           = 1 << 30,
+    CPUID_FEATURES_EAX_MOVRS                  = 1 << 31,
+    CPUID_FEATURES_EBX_PPIN                   = 1 << 0,
+    CPUID_FEATURES_EBX_TSE                    = 1 << 1,
+    CPUID_FEATURES_EBX_CPUIDMAXVAL_LIM_RMV    = 1 << 3,
+    CPUID_FEATURES_ECX_MSR_IMM                = 1 << 5,
+    CPUID_FEATURES_EDX_AVX_VNNI_INT8          = 1 << 4,
+    CPUID_FEATURES_EDX_AVX_NE_CONVERT         = 1 << 5,
+    CPUID_FEATURES_EDX_AMX_COMPLEX            = 1 << 8,
+    CPUID_FEATURES_EDX_AVX_VNNI_INT16         = 1 << 10,
+    CPUID_FEATURES_EDX_USER_TIMER             = 1 << 13,
+    CPUID_FEATURES_EDX_PREFETCHI              = 1 << 14,
+    CPUID_FEATURES_EDX_USER_MSR               = 1 << 15,
+    CPUID_FEATURES_EDX_UIRET_UIF              = 1 << 17,
+    CPUID_FEATURES_EDX_CET_SSS                = 1 << 18,
+    CPUID_FEATURES_EDX_AVX10                  = 1 << 19,
+    CPUID_FEATURES_EDX_APX                    = 1 << 21,
+    CPUID_FEATURES_EDX_MWAIT_AND_LEAF5        = 1 << 23
+} CPUID_FEATURES_STANDARD7_LEAF1, *PCPUID_FEATURES_STANDARD7_LEAF1;
 
 /* CPUID requests */
 typedef enum _CPUID_REQUESTS
 {
     CPUID_GET_VENDOR_STRING,
-    CPUID_GET_CPU_FEATURES,
+    CPUID_GET_STANDARD1_FEATURES,
-    CPUID_GET_TLB,
+    CPUID_GET_TLB_CACHE,
-    CPUID_GET_SERIAL
+    CPUID_GET_SERIAL,
+    CPUID_GET_CACHE_TOPOLOGY,
+    CPUID_GET_MONITOR_MWAIT,
+    CPUID_GET_POWER_MANAGEMENT,
+    CPUID_GET_STANDARD7_FEATURES
 } CPUID_REQUESTS, *PCPUID_REQUESTS;
 
 /* Processor identification information */
@@ -229,4 +419,11 @@ typedef struct _CPUID_SIGNATURE
     ULONG Unused2:4;
 } CPU_SIGNATURE, *PCPU_SIGNATURE;
 
+/* Trampoline types */
+typedef enum _TRAMPOLINE_TYPE
+{
+    TrampolineApStartup,
+    TrampolineEnableXpa
+} TRAMPOLINE_TYPE, *PTRAMPOLINE_TYPE;
+
 #endif /* __XTDK_AMD64_ARTYPES_H */

sdk/xtdk/amd64/hlfuncs.h

@@ -15,32 +15,38 @@
 #include <amd64/xtstruct.h>
 
 
-/* HAL library routines forward references */
+/* Hardware layer routines forward references */
+XTCLINK
 XTCDECL
 UCHAR
-HlIoPortInByte(IN USHORT Port);
+HlReadPort8(IN USHORT Port);
-
-XTCDECL
-ULONG
-HlIoPortInLong(IN USHORT Port);
 
+XTCLINK
 XTCDECL
 USHORT
-HlIoPortInShort(IN USHORT Port);
+HlReadPort16(IN USHORT Port);
 
+XTCLINK
+XTCDECL
+ULONG
+HlReadPort32(IN USHORT Port);
+
+XTCLINK
 XTCDECL
 VOID
-HlIoPortOutByte(IN USHORT Port,
+HlWritePort8(IN USHORT Port,
              IN UCHAR Data);
 
+XTCLINK
 XTCDECL
 VOID
-HlIoPortOutLong(IN USHORT Port,
+HlWritePort16(IN USHORT Port,
-                IN ULONG Value);
-
-XTCDECL
-VOID
-HlIoPortOutShort(IN USHORT Port,
               IN USHORT Value);
 
+XTCLINK
+XTCDECL
+VOID
+HlWritePort32(IN USHORT Port,
+              IN ULONG Value);
+
 #endif /* __XTDK_AMD64_HLFUNCS_H */

sdk/xtdk/amd64/hltypes.h

@@ -42,20 +42,14 @@
 #define APIC_DF_FLAT                                    0xFFFFFFFF
 #define APIC_DF_CLUSTER                                 0x0FFFFFFF
 
-/* APIC delivery modes */
-#define APIC_DM_FIXED                                   0
-#define APIC_DM_LOWPRIO                                 1
-#define APIC_DM_SMI                                     2
-#define APIC_DM_REMOTE                                  3
-#define APIC_DM_NMI                                     4
-#define APIC_DM_INIT                                    5
-#define APIC_DM_STARTUP                                 6
-#define APIC_DM_EXTINT                                  7
-
 /* APIC trigger modes */
 #define APIC_TGM_EDGE                                   0
 #define APIC_TGM_LEVEL                                  1
 
+/* APIC LDR (Logical Destination Register) shifts */
+#define APIC_X2APIC_LDR_SHIFT                           16
+#define APIC_XAPIC_LDR_SHIFT                            24
+
 /* Maximum number of I/O APICs */
 #define APIC_MAX_IOAPICS                                64
 
@@ -75,6 +69,35 @@
 /* Initial stall factor */
 #define INITIAL_STALL_FACTOR                            100
 
+/* APIC delivery mode enumeration list */
+typedef enum _APIC_DM
+{
+    APIC_DM_FIXED,
+    APIC_DM_LOWPRIO,
+    APIC_DM_SMI,
+    APIC_DM_REMOTE,
+    APIC_DM_NMI,
+    APIC_DM_INIT,
+    APIC_DM_STARTUP,
+    APIC_DM_EXTINT,
+} APIC_DM, *PAPIC_DM;
+
+/* APIC destination short-hand enumeration list */
+typedef enum _APIC_DSH
+{
+    APIC_DSH_Destination,
+    APIC_DSH_Self,
+    APIC_DSH_AllIncludingSelf,
+    APIC_DSH_AllExclusingSelf
+} APIC_DSH, *PAPIC_DSH;
+
+/* APIC mode list */
+typedef enum _APIC_MODE
+{
+    APIC_MODE_COMPAT,
+    APIC_MODE_X2APIC
+} APIC_MODE, *PAPIC_MODE;
+
 /* APIC Register Address Map */
 typedef enum _APIC_REGISTER
 {
@@ -112,35 +135,6 @@ typedef enum _APIC_REGISTER
     APIC_EXT3LVTR = 0x53  /* Extended Interrupt 3 Local Vector Table */
 } APIC_REGISTER, *PAPIC_REGISTER;
 
-/* APIC mode list */
-typedef enum _APIC_MODE
-{
-    APIC_MODE_COMPAT,
-    APIC_MODE_X2APIC
-} APIC_MODE, *PAPIC_MODE;
-
-/* APIC destination short-hand enumeration list */
-typedef enum _APIC_DSH
-{
-    APIC_DSH_Destination,
-    APIC_DSH_Self,
-    APIC_DSH_AllIncludingSelf,
-    APIC_DSH_AllExclusingSelf
-} APIC_DSH, *PAPIC_DSH;
-
-/* APIC message type enumeration list */
-typedef enum _APIC_MT
-{
-    APIC_MT_Fixed,
-    APIC_MT_LowestPriority,
-    APIC_MT_SMI,
-    APIC_MT_RemoteRead,
-    APIC_MT_NMI,
-    APIC_MT_INIT,
-    APIC_MT_Startup,
-    APIC_MT_ExtInt,
-} APIC_MT, *PAPIC_MT;
-
 /* I8259 PIC interrupt mode enumeration list */
 typedef enum _PIC_I8259_ICW1_INTERRUPT_MODE
 {
@@ -213,7 +207,7 @@ typedef union _APIC_COMMAND_REGISTER
     struct
     {
         ULONGLONG Vector:8;
-        ULONGLONG MessageType:3;
+        ULONGLONG DeliveryMode:3;
         ULONGLONG DestinationMode:1;
         ULONGLONG DeliveryStatus:1;
         ULONGLONG ReservedMBZ:1;
@@ -233,7 +227,7 @@ typedef union _APIC_LVT_REGISTER
     struct
     {
         ULONG Vector:8;
-        ULONG MessageType:3;
+        ULONG DeliveryMode:3;
         ULONG Reserved1:1;
         ULONG DeliveryStatus:1;
         ULONG Reserved2:1;

sdk/xtdk/amd64/ketypes.h

@@ -118,8 +118,8 @@
 #define KERNEL_STACK_GUARD_PAGES          1
 
 /* Processor structures size */
-#define KPROCESSOR_STRUCTURES_SIZE        ((2 * KERNEL_STACK_SIZE) + sizeof(ArInitialGdt) + sizeof(ArInitialTss) + \
+#define KPROCESSOR_STRUCTURES_SIZE        ((2 * KERNEL_STACK_SIZE) + (GDT_ENTRIES * sizeof(KGDTENTRY)) + sizeof(KTSS) + \
-                                          sizeof(ArInitialProcessorBlock) + MM_PAGE_SIZE)
+                                          sizeof(KPROCESSOR_BLOCK) + MM_PAGE_SIZE)
 
 /* Kernel frames */
 #define KEXCEPTION_FRAME_SIZE             sizeof(KEXCEPTION_FRAME)
@@ -272,11 +272,18 @@ typedef struct _KIDTENTRY
 {
     USHORT OffsetLow;
     USHORT Selector;
+    union
+    {
+        struct
+        {
             USHORT IstIndex:3;
             USHORT Reserved0:5;
             USHORT Type:5;
             USHORT Dpl:2;
             USHORT Present:1;
+        };
+        USHORT Access;
+    };
     USHORT OffsetMiddle;
     ULONG OffsetHigh;
     ULONG Reserved1;

sdk/xtdk/amd64/mmtypes.h

@@ -18,11 +18,18 @@
 #define MM_PAGE_SHIFT                              12L
 #define MM_PAGE_SIZE                               4096
 
-/* Page directory and page base addresses */
+/* Page directory and page base addresses for 4-level paging */
-#define MM_PTE_BASE                                0xFFFFF68000000000UI64
+#define MM_PTE_BASE                                0xFFFFF68000000000ULL
-#define MM_PDE_BASE                                0xFFFFF6FB40000000UI64
+#define MM_PDE_BASE                                0xFFFFF6FB40000000ULL
-#define MM_PPE_BASE                                0xFFFFF6FB7DA00000UI64
+#define MM_PPE_BASE                                0xFFFFF6FB7DA00000ULL
-#define MM_PXE_BASE                                0xFFFFF6FB7DBED000UI64
+#define MM_PXE_BASE                                0xFFFFF6FB7DBED000ULL
+
+/* Page directory and page base addresses for 5-level paging */
+#define MM_PTE_LA57_BASE                           0xFFFF000000000000ULL
+#define MM_PDE_LA57_BASE                           0xFFFF010000000000ULL
+#define MM_PPE_LA57_BASE                           0xFFFF010800000000ULL
+#define MM_PXE_LA57_BASE                           0xFFFF010840000000ULL
+#define MM_P5E_LA57_BASE                           0xFFFF010840200000ULL
 
 /* PTE shift values */
 #define MM_PTE_SHIFT                               3
@@ -30,7 +37,7 @@
 #define MM_PDI_SHIFT                               21
 #define MM_PPI_SHIFT                               30
 #define MM_PXI_SHIFT                               39
-#define MM_LA57_SHIFT                              48
+#define MM_P5I_SHIFT                               48
 
 /* Number of PTEs per page */
 #define MM_PTE_PER_PAGE                            512
@@ -54,7 +61,10 @@
 #define MM_HARDWARE_VA_START                       0xFFFFFFFFFFC00000ULL
 
 /* Maximum physical address used by HAL allocations */
-#define MM_MAXIMUM_PHYSICAL_ADDRESS                0x00000000FFFFFFFF
+#define MM_MAXIMUM_PHYSICAL_ADDRESS                0x00000000FFFFFFFFULL
+
+/* Trampoline code address */
+#define MM_TRAMPOLINE_ADDRESS                      0x80000
 
 /* Page size enumeration list */
 typedef enum _PAGE_SIZE
@@ -85,6 +95,18 @@ typedef struct _HARDWARE_PTE
     ULONGLONG NoExecute:1;
 } HARDWARE_PTE, *PHARDWARE_PTE;
 
+/* Page map information structure definition */
+typedef struct _MMPAGEMAP_INFO
+{
+    BOOLEAN Xpa;
+    ULONGLONG PteBase;
+    ULONGLONG PdeBase;
+    ULONGLONG PpeBase;
+    ULONGLONG PxeBase;
+    ULONGLONG P5eBase;
+    ULONG VaBits;
+} MMPAGEMAP_INFO, *PMMPAGEMAP_INFO;
+
 /* A Page Table Entry on AMD64 system */
 typedef struct _MMPTE_HARDWARE
 {

sdk/xtdk/amd64/xtstruct.h

@@ -13,12 +13,15 @@
 
 
 /* Architecture-specific enumeration lists forward references */
+typedef enum _APIC_DM APIC_DM, *PAPIC_DM;
 typedef enum _APIC_DSH APIC_DSH, *PAPIC_DSH;
 typedef enum _APIC_MODE APIC_MODE, *PAPIC_MODE;
-typedef enum _APIC_MT APIC_MT, *PAPIC_MT;
 typedef enum _APIC_REGISTER APIC_REGISTER, *PAPIC_REGISTER;
 typedef enum _CPU_VENDOR CPU_VENDOR, *PCPU_VENDOR;
-typedef enum _CPUID_FEATURES CPUID_FEATURES, *PCPUID_FEATURES;
+typedef enum _CPUID_FEATURES_EXTENDED CPUID_FEATURES_EXTENDED, *PCPUID_FEATURES_EXTENDED;
+typedef enum _CPUID_FEATURES_STANDARD1 CPUID_FEATURES_STANDARD1, *PCPUID_FEATURES_STANDARD1;
+typedef enum _CPUID_FEATURES_STANDARD7_LEAF0 CPUID_FEATURES_STANDARD7_LEAF0, *PCPUID_FEATURES_STANDARD7_LEAF0;
+typedef enum _CPUID_FEATURES_STANDARD7_LEAF1 CPUID_FEATURES_STANDARD7_LEAF1, *PCPUID_FEATURES_STANDARD7_LEAF1;
 typedef enum _CPUID_REQUESTS CPUID_REQUESTS, *PCPUID_REQUESTS;
 typedef enum _PAGE_SIZE PAGE_SIZE, *PPAGE_SIZE;
 typedef enum _PIC_I8259_ICW1_INTERRUPT_MODE PIC_I8259_ICW1_INTERRUPT_MODE, *PPIC_I8259_ICW1_INTERRUPT_MODE;
@@ -27,6 +30,7 @@ typedef enum _PIC_I8259_ICW1_OPERATING_MODE PIC_I8259_ICW1_OPERATING_MODE, *PPIC
 typedef enum _PIC_I8259_ICW4_BUFFERED_MODE PIC_I8259_ICW4_BUFFERED_MODE, *PPIC_I8259_ICW4_BUFFERED_MODE;
 typedef enum _PIC_I8259_ICW4_EOI_MODE PIC_I8259_ICW4_EOI_MODE, *PPIC_I8259_ICW4_EOI_MODE;
 typedef enum _PIC_I8259_ICW4_SYSTEM_MODE PIC_I8259_ICW4_SYSTEM_MODE, *PPIC_I8259_ICW4_SYSTEM_MODE;
+typedef enum _TRAMPOLINE_TYPE TRAMPOLINE_TYPE, *PTRAMPOLINE_TYPE;
 
 /* Architecture-specific structures forward references */
 typedef struct _CONTEXT CONTEXT, *PCONTEXT;
@@ -48,6 +52,7 @@ typedef struct _KSWITCH_FRAME KSWITCH_FRAME, *PKSWITCH_FRAME;
 typedef struct _KTHREAD_INIT_FRAME KTHREAD_INIT_FRAME, *PKTHREAD_INIT_FRAME;
 typedef struct _KTRAP_FRAME KTRAP_FRAME, *PKTRAP_FRAME;
 typedef struct _KTSS KTSS, *PKTSS;
+typedef struct _MMPAGEMAP_INFO MMPAGEMAP_INFO, *PMMPAGEMAP_INFO;
 typedef struct _MMPFN MMPFN, *PMMPFN;
 typedef struct _MMPTE_HARDWARE MMPTE_HARDWARE, *PMMPTE_HARDWARE;
 typedef struct _MMPTE_HARDWARE_LARGEPAGE MMPTE_HARDWARE_LARGEPAGE, *PMMPTE_HARDWARE_LARGEPAGE;
@@ -63,6 +68,7 @@ typedef union _APIC_BASE_REGISTER APIC_BASE_REGISTER, *PAPIC_BASE_REGISTER;
 typedef union _APIC_COMMAND_REGISTER APIC_COMMAND_REGISTER, *PAPIC_COMMAND_REGISTER;
 typedef union _APIC_LVT_REGISTER APIC_LVT_REGISTER, *PAPIC_LVT_REGISTER;
 typedef union _APIC_SPURIOUS_REGISTER APIC_SPURIOUS_REGISTER, *PAPIC_SPURIOUS_REGISTER;
+typedef union _MMPTE MMP5E, *PMMP5E;
 typedef union _MMPTE MMPDE, *PMMPDE;
 typedef union _MMPTE MMPPE, *PMMPPE;
 typedef union _MMPTE MMPTE, *PMMPTE;

sdk/xtdk/blfuncs.h

@@ -14,6 +14,7 @@
 
 
 /* XT BootLoader routines forward references */
+XTCLINK
 XTCDECL
 EFI_STATUS
 BlGetXtLdrProtocol(IN PEFI_SYSTEM_TABLE SystemTable,

sdk/xtdk/bltypes.h

@@ -4,6 +4,7 @@
  * FILE:            sdk/xtdk/bltypes.h
  * DESCRIPTION:     XT Boot Loader structures definitions
  * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ *                  Aiken Harris <harraiken91@gmail.com>
  */
 
 #ifndef __XTDK_BLTYPES_H
@@ -18,10 +19,11 @@
 
 /* EFI XT boot devices */
 #define XTBL_BOOT_DEVICE_UNKNOWN                                    0x00
-#define XTBL_BOOT_DEVICE_CDROM                                      0x01
+#define XTBL_BOOT_DEVICE_ESP                                        0x01
-#define XTBL_BOOT_DEVICE_FLOPPY                                     0x02
+#define XTBL_BOOT_DEVICE_CDROM                                      0x02
-#define XTBL_BOOT_DEVICE_HARDDISK                                   0x03
+#define XTBL_BOOT_DEVICE_FLOPPY                                     0x04
-#define XTBL_BOOT_DEVICE_RAMDISK                                    0x04
+#define XTBL_BOOT_DEVICE_HARDDISK                                   0x08
+#define XTBL_BOOT_DEVICE_RAMDISK                                    0x10
 
 /* XTLDR Debug Port type definitions */
 #define XTBL_DEBUGPORT_SCREEN                                       1
@@ -40,99 +42,130 @@
 #define XTBL_TUI_MAX_DIALOG_WIDTH                                   100
 
 /* XTLDR Routine pointers */
-typedef LONG (*PBL_GET_MEMTYPE_ROUTINE)(IN EFI_MEMORY_TYPE EfiMemoryType);
+typedef LOADER_MEMORY_TYPE (XTCDECL *PBL_GET_MEMTYPE_ROUTINE)(IN EFI_MEMORY_TYPE EfiMemoryType);
 
 /* Boot Loader protocol routine pointers */
-typedef EFI_STATUS (*PBL_ALLOCATE_PAGES)(IN ULONGLONG Size, OUT PEFI_PHYSICAL_ADDRESS Memory);
+typedef EFI_STATUS (XTCDECL *PBL_ALLOCATE_PAGES)(IN EFI_ALLOCATE_TYPE AllocationType, IN ULONGLONG Size, OUT PEFI_PHYSICAL_ADDRESS Memory);
-typedef EFI_STATUS (*PBL_ALLOCATE_POOL)(IN UINT_PTR Size, OUT PVOID *Memory);
+typedef EFI_STATUS (XTCDECL *PBL_ALLOCATE_POOL)(IN UINT_PTR Size, OUT PVOID *Memory);
-typedef EFI_STATUS (*PBL_BOOTMENU_INITIALIZE_OS_LIST)(OUT PXTBL_BOOTMENU_ITEM *MenuEntries, OUT PULONG EntriesCount, OUT PULONG DefaultId);
+typedef EFI_STATUS (XTCDECL *PBL_BOOTMENU_INITIALIZE_OS_LIST)(IN ULONG MaxNameLength, OUT PXTBL_BOOTMENU_ITEM *MenuEntries, OUT PULONG EntriesCount, OUT PULONG DefaultId);
-typedef EFI_STATUS (*PBL_BUILD_PAGE_MAP)(IN PXTBL_PAGE_MAPPING PageMap, IN ULONG_PTR SelfMapAddress);
+typedef BOOLEAN (XTCDECL *PBL_BOOTUTILS_GET_BOOLEAN_PARAMETER)(IN PCWSTR Parameters, IN PCWSTR Needle);
-typedef EFI_STATUS (*PBL_CLOSE_VOLUME)(IN PEFI_HANDLE VolumeHandle);
+typedef VOID (XTAPI *PBL_BOOTUTILS_GET_TRAMPOLINE_INFORMATION)(IN TRAMPOLINE_TYPE TrampolineType, OUT PVOID *TrampolineCode, OUT PULONG_PTR TrampolineSize);
-typedef VOID (*PBL_CLEAR_CONSOLE_LINE)(IN ULONGLONG LineNo);
+typedef EFI_STATUS (XTCDECL *PBL_BUILD_PAGE_MAP)(IN PXTBL_PAGE_MAPPING PageMap, IN ULONG_PTR SelfMapAddress);
-typedef EFI_STATUS (*PBL_CLOSE_XT_PROTOCOL)(IN PEFI_HANDLE Handle, IN PEFI_GUID ProtocolGuid);
+typedef EFI_STATUS (XTCDECL *PBL_CLOSE_VOLUME)(IN PEFI_HANDLE VolumeHandle);
-typedef BOOLEAN (*PBL_CONFIG_GET_BOOLEAN_VALUE)(IN CONST PWCHAR ConfigName);
+typedef VOID (XTCDECL *PBL_CLEAR_CONSOLE_LINE)(IN ULONGLONG LineNo);
-typedef PWCHAR (*PBL_CONFIG_GET_VALUE)(IN CONST PWCHAR ConfigName);
+typedef BOOLEAN (XTCDECL *PBL_CPU_CPUID)(IN OUT PCPUID_REGISTERS Registers);
-typedef VOID (*PBL_CONSOLE_CLEAR_SCREEN)();
+typedef ULONG_PTR (XTCDECL *PBL_CPU_READ_CONTROL_REGISTER)(IN USHORT ControlRegister);
-typedef VOID (*PBL_CONSOLE_DISABLE_CURSOR)();
+typedef ULONGLONG (XTCDECL *PBL_CPU_READ_MODEL_SPECIFIC_REGISTER)(IN ULONG Register);
-typedef VOID (*PBL_CONSOLE_ENABLE_CURSOR)();
+typedef VOID (XTCDECL *PBL_CPU_WRITE_CONTROL_REGISTER)(IN USHORT ControlRegister, IN UINT_PTR Value);
-typedef VOID (*PBL_CONSOLE_PRINT)(IN PUSHORT Format, IN ...);
+typedef EFI_STATUS (XTCDECL *PBL_CLOSE_XT_PROTOCOL)(IN PEFI_HANDLE Handle, IN PEFI_GUID ProtocolGuid);
-typedef VOID (*PBL_CONSOLE_QUERY_MODE)(OUT PUINT_PTR ResX, OUT PUINT_PTR ResY);
+typedef BOOLEAN (XTCDECL *PBL_CONFIG_GET_BOOLEAN_VALUE)(IN PCWSTR ConfigName);
-typedef VOID (*PBL_CONSOLE_READ_KEY_STROKE)(OUT PEFI_INPUT_KEY Key);
+typedef EFI_STATUS (XTCDECL *PBL_CONFIG_GET_BOOT_OPTION_VALUE)(IN PLIST_ENTRY Options, IN PCWSTR OptionName, OUT PWCHAR *OptionValue);
-typedef VOID (*PBL_CONSOLE_RESET_INPUT_BUFFER)();
+typedef VOID (XTCDECL *PBL_CONFIG_GET_EDITABLE_OPTIONS)(OUT PCWSTR **OptionsArray, OUT PULONG OptionsCount);
-typedef VOID (*PBL_CONSOLE_SET_ATTRIBUTES)(IN ULONGLONG Attributes);
+typedef EFI_STATUS (XTCDECL *PBL_CONFIG_GET_VALUE)(IN PCWSTR ConfigName, OUT PWCHAR *ConfigValue);
-typedef VOID (*PBL_CONSOLE_SET_CURSOR_POSITION)(IN ULONGLONG PosX, IN ULONGLONG PosY);
+typedef EFI_STATUS (XTCDECL *PBL_CONFIG_SET_BOOT_OPTION_VALUE)(IN PLIST_ENTRY Options, IN PCWSTR OptionName, IN PCWSTR OptionValue);
-typedef VOID (*PBL_CONSOLE_WRITE)(IN PUSHORT String);
+typedef VOID (XTCDECL *PBL_CONSOLE_CLEAR_SCREEN)();
+typedef VOID (XTCDECL *PBL_CONSOLE_DISABLE_CURSOR)();
+typedef VOID (XTCDECL *PBL_CONSOLE_ENABLE_CURSOR)();
+typedef VOID (XTCDECL *PBL_CONSOLE_PRINT)(IN PCWSTR Format, IN ...);
+typedef VOID (XTCDECL *PBL_CONSOLE_QUERY_MODE)(OUT PUINT_PTR ResX, OUT PUINT_PTR ResY);
+typedef VOID (XTCDECL *PBL_CONSOLE_READ_KEY_STROKE)(OUT PEFI_INPUT_KEY Key);
+typedef VOID (XTCDECL *PBL_CONSOLE_RESET_INPUT_BUFFER)();
+typedef VOID (XTCDECL *PBL_CONSOLE_SET_ATTRIBUTES)(IN ULONGLONG Attributes);
+typedef VOID (XTCDECL *PBL_CONSOLE_SET_CURSOR_POSITION)(IN ULONGLONG PosX, IN ULONGLONG PosY);
+typedef VOID (XTCDECL *PBL_CONSOLE_WRITE)(IN PCWSTR String);
+typedef SIZE_T (XTAPI *PBL_COMPARE_MEMORY)(IN PCVOID LeftBuffer, IN PCVOID RightBuffer, IN SIZE_T Length);
+typedef SIZE_T (XTAPI *PBL_WIDESTRING_COMPARE)(IN PCWSTR String1, IN PCWSTR String2, IN SIZE_T Length);
 typedef VOID (XTAPI *PBL_COPY_MEMORY)(OUT PVOID Destination, IN PCVOID Source, IN SIZE_T Length);
-typedef VOID (*PBL_DEBUG_PRINT)(IN PUSHORT Format, IN ...);
+typedef VOID (XTCDECL *PBL_DEBUG_PRINT)(IN PCWSTR Format, IN ...);
-typedef EFI_STATUS (*PBL_ENTER_FIRMWARE_SETUP)();
+typedef EFI_STATUS (XTCDECL *PBL_ENTER_FIRMWARE_SETUP)();
-typedef EFI_STATUS (*PBL_EXIT_BOOT_SERVICES)();
+typedef EFI_STATUS (XTCDECL *PBL_EXIT_BOOT_SERVICES)();
-typedef EFI_STATUS (*PBL_FIND_BOOT_PROTOCOL)(IN PWCHAR SystemType, OUT PEFI_GUID BootProtocolGuid);
+typedef EFI_STATUS (XTCDECL *PBL_FIND_BOOT_PROTOCOL)(IN PCWSTR SystemType, OUT PEFI_GUID BootProtocolGuid);
-typedef EFI_STATUS (*PBL_FREE_PAGES)(IN ULONGLONG Size, IN EFI_PHYSICAL_ADDRESS Memory);
+typedef EFI_STATUS (XTCDECL *PBL_FREE_PAGES)(IN ULONGLONG Size, IN EFI_PHYSICAL_ADDRESS Memory);
-typedef EFI_STATUS (*PBL_FREE_POOL)(IN PVOID Memory);
+typedef EFI_STATUS (XTCDECL *PBL_FREE_POOL)(IN PVOID Memory);
-typedef EFI_STATUS (*PBL_GET_CONFIGURATION_TABLE)(IN PEFI_GUID TableGuid, OUT PVOID *Table);
+typedef EFI_STATUS (XTCDECL *PBL_GET_CONFIGURATION_TABLE)(IN PEFI_GUID TableGuid, OUT PVOID *Table);
-typedef EFI_STATUS (*PBL_GET_EFI_VARIABLE)(IN PEFI_GUID Vendor, IN PWCHAR VariableName, OUT PVOID *VariableValue);
+typedef EFI_STATUS (XTCDECL *PBL_GET_EFI_VARIABLE)(IN PEFI_GUID Vendor, IN PCWSTR VariableName, OUT PVOID *VariableValue);
-typedef VOID (*PBL_GET_MAPPINGS_COUNT)(IN PXTBL_PAGE_MAPPING PageMap, OUT PULONG NumberOfMappings);
+typedef VOID (XTCDECL *PBL_GET_MAPPINGS_COUNT)(IN PXTBL_PAGE_MAPPING PageMap, OUT PULONG NumberOfMappings);
-typedef EFI_STATUS (*PBL_GET_MEMORY_MAP)(OUT PEFI_MEMORY_MAP MemoryMap);
+typedef EFI_STATUS (XTCDECL *PBL_GET_MEMORY_MAP)(OUT PEFI_MEMORY_MAP MemoryMap);
-typedef PLIST_ENTRY (*PBL_GET_MODULES_LIST)();
+typedef PLIST_ENTRY (XTCDECL *PBL_GET_MODULES_LIST)();
-typedef ULONGLONG (*PBL_GET_RANDOM_VALUE)(IN OUT PULONGLONG RNGBuffer);
+typedef ULONGLONG (XTCDECL *PBL_GET_RANDOM_VALUE)(IN OUT PULONGLONG RNGBuffer);
-typedef INT_PTR (*PBL_GET_SECURE_BOOT_STATUS)();
+typedef INT_PTR (XTCDECL *PBL_GET_SECURE_BOOT_STATUS)();
-typedef PVOID (*PBL_GET_VIRTUAL_ADDRESS)(IN PXTBL_PAGE_MAPPING PageMap, IN PVOID PhysicalAddress);
+typedef PVOID (XTCDECL *PBL_GET_VIRTUAL_ADDRESS)(IN PXTBL_PAGE_MAPPING PageMap, IN PVOID PhysicalAddress);
-typedef EFI_STATUS (*PBL_INITIALIZE_ENTROPY)(PULONGLONG RNGBuffer);
+typedef EFI_STATUS (XTCDECL *PBL_INITIALIZE_ENTROPY)(PULONGLONG RNGBuffer);
-typedef VOID (*PBL_INITIALIZE_PAGE_MAP)(OUT PXTBL_PAGE_MAPPING PageMap, IN SHORT PageMapLevel, IN PAGE_SIZE PageSize);
+typedef VOID (XTCDECL *PBL_INITIALIZE_PAGE_MAP)(OUT PXTBL_PAGE_MAPPING PageMap, IN SHORT PageMapLevel, IN PAGE_SIZE PageSize);
-typedef EFI_STATUS (*PBL_INSTALL_XT_PROTOCOL)(IN PVOID Interface, IN PEFI_GUID Guid);
+typedef EFI_STATUS (XTCDECL *PBL_INSTALL_XT_PROTOCOL)(IN PVOID Interface, IN PEFI_GUID Guid);
-typedef EFI_STATUS (*PBL_INVOKE_BOOT_PROTOCOL)(IN PWCHAR ShortName, IN PLIST_ENTRY OptionsList);
+typedef EFI_STATUS (XTCDECL *PBL_INVOKE_BOOT_PROTOCOL)(IN PWCHAR ShortName, IN PLIST_ENTRY OptionsList);
-typedef EFI_STATUS (*PBL_LOCATE_PROTOCOL_HANDLES)(OUT PEFI_HANDLE *Handles, OUT PUINT_PTR Count, IN PEFI_GUID ProtocolGuid);
+typedef EFI_STATUS (XTCDECL *PBL_LOCATE_PROTOCOL_HANDLES)(OUT PEFI_HANDLE *Handles, OUT PUINT_PTR Count, IN PEFI_GUID ProtocolGuid);
-typedef EFI_STATUS (*PBL_LOAD_EFI_IMAGE)(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath, IN PVOID ImageData, IN SIZE_T ImageSize, OUT PEFI_HANDLE ImageHandle);
+typedef EFI_STATUS (XTCDECL *PBL_LOAD_EFI_IMAGE)(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath, IN PVOID ImageData, IN SIZE_T ImageSize, OUT PEFI_HANDLE ImageHandle);
-typedef EFI_STATUS (*PBL_MAP_EFI_MEMORY)(IN OUT PXTBL_PAGE_MAPPING PageMap, IN OUT PVOID *MemoryMapAddress, IN PBL_GET_MEMTYPE_ROUTINE GetMemoryTypeRoutine);
+typedef VOID (XTCDECL *PBL_LLIST_INITIALIZE_HEAD)(IN PLIST_ENTRY ListHead);
-typedef EFI_STATUS (*PBL_MAP_PAGE)(IN PXTBL_PAGE_MAPPING PageMap, IN UINT_PTR VirtualAddress, IN UINT_PTR PhysicalAddress, IN UINT NumberOfPages);
+typedef VOID (XTCDECL *PBL_LLIST_INSERT_HEAD)(IN OUT PLIST_ENTRY ListHead, IN PLIST_ENTRY Entry);
-typedef EFI_STATUS (*PBL_MAP_VIRTUAL_MEMORY)(IN OUT PXTBL_PAGE_MAPPING PageMap, IN PVOID VirtualAddress, IN PVOID PhysicalAddress, IN ULONGLONG NumberOfPages, IN LOADER_MEMORY_TYPE MemoryType);
+typedef VOID (XTCDECL *PBL_LLIST_INSERT_TAIL)(IN OUT PLIST_ENTRY ListHead, IN PLIST_ENTRY Entry);
-typedef EFI_STATUS (*PBL_OPEN_VOLUME)(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath, OUT PEFI_HANDLE DiskHandle, OUT PEFI_FILE_HANDLE *FsHandle);
+typedef VOID (XTCDECL *PBL_LLIST_REMOVE_ENTRY)(IN PLIST_ENTRY Entry);
-typedef EFI_STATUS (*PBL_OPEN_PROTOCOL)(OUT PEFI_HANDLE Handle, OUT PVOID *ProtocolHandler, IN PEFI_GUID ProtocolGuid);
+typedef EFI_STATUS (XTCDECL *PBL_MAP_EFI_MEMORY)(IN OUT PXTBL_PAGE_MAPPING PageMap, IN OUT PVOID *MemoryMapAddress, IN PBL_GET_MEMTYPE_ROUTINE GetMemoryTypeRoutine);
-typedef EFI_STATUS (*PBL_OPEN_PROTOCOL_HANDLE)(IN EFI_HANDLE Handle, OUT PVOID *ProtocolHandler, IN PEFI_GUID ProtocolGuid);
+typedef EFI_STATUS (XTCDECL *PBL_MAP_PAGE)(IN PXTBL_PAGE_MAPPING PageMap, IN ULONG_PTR VirtualAddress, IN ULONG_PTR PhysicalAddress, IN ULONG NumberOfPages);
-typedef PVOID (*PBL_PHYSICAL_ADDRESS_TO_VIRTUAL)(IN PVOID PhysicalAddress, IN PVOID PhysicalBase, IN PVOID VirtualBase);
+typedef EFI_STATUS (XTCDECL *PBL_MAP_VIRTUAL_MEMORY)(IN OUT PXTBL_PAGE_MAPPING PageMap, IN PVOID VirtualAddress, IN PVOID PhysicalAddress, IN ULONGLONG NumberOfPages, IN LOADER_MEMORY_TYPE MemoryType);
-typedef EFI_STATUS (*PBL_PHYSICAL_LIST_TO_VIRTUAL)(IN PXTBL_PAGE_MAPPING PageMap, IN OUT PLIST_ENTRY ListHead, IN PVOID PhysicalBase, IN PVOID VirtualBase);
+typedef VOID (XTAPI *PBL_MOVE_MEMORY)(IN OUT PVOID Destination, IN PCVOID Source, IN SIZE_T Length);
-typedef EFI_STATUS (*PBL_POWER_SYSTEM)();
+typedef EFI_STATUS (XTCDECL *PBL_OPEN_VOLUME)(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath, OUT PEFI_HANDLE DiskHandle, OUT PEFI_FILE_HANDLE *FsHandle);
-typedef EFI_STATUS (*PBL_READ_FILE)(IN PEFI_FILE_HANDLE DirHandle, IN CONST PWCHAR FileName, OUT PVOID *FileData, OUT PSIZE_T FileSize);
+typedef EFI_STATUS (XTCDECL *PBL_OPEN_PROTOCOL)(OUT PEFI_HANDLE Handle, OUT PVOID *ProtocolHandler, IN PEFI_GUID ProtocolGuid);
-typedef EFI_STATUS (*PBL_REGISTER_BOOT_PROTOCOL)(IN PWCHAR SystemType, IN PEFI_GUID BootProtocolGuid);
+typedef EFI_STATUS (XTCDECL *PBL_OPEN_PROTOCOL_HANDLE)(IN EFI_HANDLE Handle, OUT PVOID *ProtocolHandler, IN PEFI_GUID ProtocolGuid);
-typedef VOID (*PBL_REGISTER_XT_BOOT_MENU)(PVOID BootMenuRoutine);
+typedef PVOID (XTCDECL *PBL_PHYSICAL_ADDRESS_TO_VIRTUAL)(IN PVOID PhysicalAddress, IN PVOID PhysicalBase, IN PVOID VirtualBase);
-typedef EFI_STATUS (*PBL_SET_EFI_VARIABLE)(IN PEFI_GUID Vendor, IN PWCHAR VariableName, IN PVOID VariableValue, IN UINT_PTR Size);
+typedef UCHAR (XTCDECL *PBL_IOPORT_READ_8)(IN USHORT Port);
+typedef USHORT (XTCDECL *PBL_IOPORT_READ_16)(IN USHORT Port);
+typedef ULONG (XTCDECL *PBL_IOPORT_READ_32)(IN USHORT Port);
+typedef VOID (XTCDECL *PBL_IOPORT_WRITE_8)(IN USHORT Port, IN UCHAR Value);
+typedef VOID (XTCDECL *PBL_IOPORT_WRITE_16)(IN USHORT Port, IN USHORT Value);
+typedef VOID (XTCDECL *PBL_IOPORT_WRITE_32)(IN USHORT Port, IN ULONG Value);
+typedef EFI_STATUS (XTCDECL *PBL_PHYSICAL_LIST_TO_VIRTUAL)(IN PXTBL_PAGE_MAPPING PageMap, IN OUT PLIST_ENTRY ListHead, IN PVOID PhysicalBase, IN PVOID VirtualBase);
+typedef EFI_STATUS (XTCDECL *PBL_POWER_SYSTEM)();
+typedef EFI_STATUS (XTCDECL *PBL_READ_FILE)(IN PEFI_FILE_HANDLE DirHandle, IN PCWSTR FileName, OUT PVOID *FileData, OUT PSIZE_T FileSize);
+typedef EFI_STATUS (XTCDECL *PBL_REGISTER_BOOT_PROTOCOL)(IN PCWSTR SystemType, IN PEFI_GUID BootProtocolGuid);
+typedef VOID (XTCDECL *PBL_REGISTER_XT_BOOT_MENU)(PVOID BootMenuRoutine);
+typedef EFI_STATUS (XTCDECL *PBL_SET_EFI_VARIABLE)(IN PEFI_GUID Vendor, IN PCWSTR VariableName, IN PVOID VariableValue, IN UINT_PTR Size);
+typedef SIZE_T (XTAPI *PBL_STRING_COMPARE)(IN PCSTR String1, IN PCSTR String2, IN SIZE_T Length);
+typedef SIZE_T (XTAPI *PBL_STRING_LENGTH)(IN PCSTR String, IN SIZE_T MaxLength);
+typedef SIZE_T (XTAPI *PBL_STRING_TO_WIDESTRING)(OUT PWCHAR Destination, IN PCSTR *Source, IN SIZE_T Length);
+typedef PCHAR (XTAPI *PBL_STRING_TRIM)(IN PCHAR String);
 typedef VOID (XTAPI *PBL_SET_MEMORY)(OUT PVOID Destination, IN UCHAR Byte, IN SIZE_T Length);
-typedef VOID (*PBL_SLEEP_EXECUTION)(IN ULONG_PTR Milliseconds);
+typedef VOID (XTCDECL *PBL_SLEEP_EXECUTION)(IN ULONG_PTR Milliseconds);
-typedef EFI_STATUS (*PBL_START_EFI_IMAGE)(IN EFI_HANDLE ImageHandle);
+typedef EFI_STATUS (XTCDECL *PBL_START_EFI_IMAGE)(IN EFI_HANDLE ImageHandle);
-typedef VOID (*PBL_TUI_DISPLAY_ERROR_DIALOG)(IN PWCHAR Caption, IN PWCHAR Message);
+typedef VOID (XTCDECL *PBL_TUI_DISPLAY_ERROR_DIALOG)(IN PCWSTR Caption, IN PCWSTR Message);
-typedef VOID (*PBL_TUI_DISPLAY_INFO_DIALOG)(IN PWCHAR Caption, IN PWCHAR Message);
+typedef VOID (XTCDECL *PBL_TUI_DISPLAY_INFO_DIALOG)(IN PCWSTR Caption, IN PCWSTR Message);
-typedef VOID (*PBL_TUI_DISPLAY_INPUT_DIALOG)(IN PWCHAR Caption, IN PWCHAR Message, IN PWCHAR *InputFieldText);
+typedef VOID (XTCDECL *PBL_TUI_DISPLAY_INPUT_DIALOG)(IN PCWSTR Caption, IN PCWSTR Message, IN OUT PWCHAR *InputFieldText);
-typedef XTBL_DIALOG_HANDLE (*PBL_TUI_DISPLAY_PROGRESS_DIALOG)(IN PWCHAR Caption, IN PWCHAR Message, IN UCHAR Percentage);
+typedef XTBL_DIALOG_HANDLE (XTCDECL *PBL_TUI_DISPLAY_PROGRESS_DIALOG)(IN PCWSTR Caption, IN PCWSTR Message, IN UCHAR Percentage);
-typedef VOID (*PBL_TUI_UPDATE_PROGRESS_BAR)(IN PXTBL_DIALOG_HANDLE Handle, IN PWCHAR Message, IN UCHAR Percentage);
+typedef VOID (XTCDECL *PBL_TUI_UPDATE_PROGRESS_BAR)(IN PXTBL_DIALOG_HANDLE Handle, IN PCWSTR Message, IN UCHAR Percentage);
-typedef EFI_STATUS (*PBL_WAIT_FOR_EFI_EVENT)(IN UINT_PTR NumberOfEvents, IN PEFI_EVENT Event, OUT PUINT_PTR Index);
+typedef SIZE_T (XTAPI *PBL_WIDESTRING_COMPARE_INSENSITIVE)(IN PCWSTR String1, IN PCWSTR String2, IN SIZE_T Length);
-typedef VOID (*PBL_XT_BOOT_MENU)();
+typedef PWCHAR (XTAPI *PBL_WIDESTRING_CONCATENATE)(OUT PWCHAR Destination, IN PWCHAR Source, IN SIZE_T Count);
+typedef XTSTATUS (XTAPI *PBL_WIDESTRING_FORMAT)(IN PRTL_PRINT_CONTEXT Context, IN PCWSTR Format, IN VA_LIST ArgumentList);
+typedef SIZE_T (XTAPI *PBL_WIDESTRING_LENGTH)(IN PCWSTR String, IN SIZE_T MaxLength);
+typedef PWCHAR (XTAPI *PBL_WIDESTRING_TOKENIZE)(IN PWCHAR String, IN PCWSTR Delimiter, IN OUT PWCHAR *SavePtr);
+typedef EFI_STATUS (XTCDECL *PBL_WAIT_FOR_EFI_EVENT)(IN UINT_PTR NumberOfEvents, IN PEFI_EVENT Event, OUT PUINT_PTR Index);
+typedef VOID (XTCDECL *PBL_XT_BOOT_MENU)();
 typedef VOID (XTAPI *PBL_ZERO_MEMORY)(OUT PVOID Destination, IN SIZE_T Length);
 
 /* Module protocols routine pointers */
-typedef EFI_STATUS (*PBL_ACPI_GET_ACPI_DESCRIPTION_POINTER)(OUT PVOID *AcpiTable);
+typedef EFI_STATUS (XTCDECL *PBL_ACPI_GET_ACPI_DESCRIPTION_POINTER)(OUT PVOID *AcpiTable);
-typedef EFI_STATUS (*PBL_ACPI_GET_ACPI_TABLE)(IN CONST UINT Signature, IN PVOID PreviousTable, OUT PVOID *AcpiTable);
+typedef EFI_STATUS (XTCDECL *PBL_ACPI_GET_ACPI_TABLE)(IN CONST UINT Signature, IN PVOID PreviousTable, OUT PVOID *AcpiTable);
-typedef EFI_STATUS (*PBL_ACPI_GET_APIC_BASE)(OUT PVOID *ApicBase);
+typedef EFI_STATUS (XTCDECL *PBL_ACPI_GET_APIC_BASE)(OUT PVOID *ApicBase);
-typedef EFI_STATUS (*PBL_ACPI_GET_RSDP_TABLE)(OUT PVOID *AcpiTable);
+typedef EFI_STATUS (XTCDECL *PBL_ACPI_GET_RSDP_TABLE)(OUT PVOID *AcpiTable);
-typedef EFI_STATUS (*PBL_ACPI_GET_SMBIOS_TABLE)(OUT PVOID *SmBiosTable);
+typedef EFI_STATUS (XTCDECL *PBL_ACPI_GET_SMBIOS_TABLE)(OUT PVOID *SmBiosTable);
-typedef EFI_STATUS (*PBL_ACPI_GET_SMBIOS3_TABLE)(OUT PVOID *SmBiosTable);
+typedef EFI_STATUS (XTCDECL *PBL_ACPI_GET_SMBIOS3_TABLE)(OUT PVOID *SmBiosTable);
-typedef EFI_STATUS (*PBL_ACPI_GET_XSDP_TABLE)(OUT PVOID *AcpiTable);
+typedef EFI_STATUS (XTCDECL *PBL_ACPI_GET_XSDP_TABLE)(OUT PVOID *AcpiTable);
-typedef EFI_STATUS (*PBL_BOOTPROTO_BOOT_SYSTEM)(IN PXTBL_BOOT_PARAMETERS Parameters);
+typedef EFI_STATUS (XTCDECL *PBL_BOOTPROTO_BOOT_SYSTEM)(IN PXTBL_BOOT_PARAMETERS Parameters);
-typedef EFI_STATUS (*PBL_EXECIMAGE_GET_ENTRY_POINT)(IN PVOID ImagePointer, OUT PVOID *EntryPoint);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_GET_ENTRY_POINT)(IN PVOID ImagePointer, OUT PVOID *EntryPoint);
-typedef EFI_STATUS (*PBL_EXECIMAGE_GET_FILE_SIZE)(IN PVOID ImagePointer, OUT PULONGLONG FileSize);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_GET_FILE_SIZE)(IN PVOID ImagePointer, OUT PULONGLONG FileSize);
-typedef EFI_STATUS (*PBL_EXECIMAGE_GET_IMAGE_SIZE)(IN PVOID ImagePointer, OUT PUINT ImageSize);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_GET_IMAGE_SIZE)(IN PVOID ImagePointer, OUT PUINT ImageSize);
-typedef EFI_STATUS (*PBL_EXECIMAGE_GET_MACHINE_TYPE)(IN PVOID ImagePointer, OUT PUSHORT MachineType);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_GET_MACHINE_TYPE)(IN PVOID ImagePointer, OUT PUSHORT MachineType);
-typedef EFI_STATUS (*PBL_EXECIMAGE_GET_SECTION)(IN PVOID ImagePointer, IN PCHAR SectionName, OUT PULONG *RawData);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_GET_SECTION)(IN PVOID ImagePointer, IN PCHAR SectionName, OUT PULONG *RawData);
-typedef EFI_STATUS (*PBL_EXECIMAGE_GET_SUBSYSTEM)(IN PVOID ImagePointer, OUT PUSHORT SubSystem);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_GET_SUBSYSTEM)(IN PVOID ImagePointer, OUT PUSHORT SubSystem);
-typedef EFI_STATUS (*PBL_EXECIMAGE_GET_VERSION)(IN PVOID ImagePointer, OUT PUSHORT Version);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_GET_VERSION)(IN PVOID ImagePointer, OUT PUSHORT Version);
-typedef EFI_STATUS (*PBL_EXECIMAGE_LOAD_IMAGE)(IN PEFI_FILE_HANDLE FileHandle, IN LOADER_MEMORY_TYPE MemoryType, IN PVOID VirtualAddress, OUT PVOID *ImagePointer);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_LOAD_IMAGE)(IN PEFI_FILE_HANDLE FileHandle, IN LOADER_MEMORY_TYPE MemoryType, IN PVOID VirtualAddress, OUT PVOID *ImagePointer);
-typedef EFI_STATUS (*PBL_EXECIMAGE_RELOCATE_IMAGE)(IN PVOID ImagePointer, IN EFI_VIRTUAL_ADDRESS Address);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_RELOCATE_IMAGE)(IN PVOID ImagePointer, IN EFI_VIRTUAL_ADDRESS Address);
-typedef EFI_STATUS (*PBL_EXECIMAGE_UNLOAD_IMAGE)(IN PVOID ImagePointer);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_UNLOAD_IMAGE)(IN PVOID ImagePointer);
-typedef EFI_STATUS (*PBL_EXECIMAGE_VERIFY_IMAGE)(IN PVOID ImagePointer);
+typedef EFI_STATUS (XTCDECL *PBL_EXECIMAGE_VERIFY_IMAGE)(IN PVOID ImagePointer);
-typedef EFI_STATUS (*PBL_FRAMEBUFFER_GET_DISPLAY_DRIVER)(OUT PEFI_GRAPHICS_PROTOCOL Protocol);
+typedef EFI_STATUS (XTCDECL *PBL_FRAMEBUFFER_GET_DISPLAY_DRIVER)(OUT PEFI_GRAPHICS_PROTOCOL Protocol);
-typedef EFI_STATUS (*PBL_FRAMEBUFFER_GET_DISPLAY_INFORMATION)(OUT PEFI_PHYSICAL_ADDRESS FrameBufferBase, OUT PULONG_PTR FrameBufferSize, OUT PXTBL_FRAMEBUFFER_MODE_INFORMATION ModeInfo);
+typedef EFI_STATUS (XTCDECL *PBL_FRAMEBUFFER_GET_DISPLAY_INFORMATION)(OUT PEFI_PHYSICAL_ADDRESS FrameBufferBase, OUT PULONG_PTR FrameBufferSize, OUT PXTBL_FRAMEBUFFER_MODE_INFORMATION ModeInfo);
-typedef EFI_STATUS (*PBL_FRAMEBUFFER_GET_PREFERRED_SCREEN_RESOLUTION)(OUT PUINT PreferredWidth, OUT PUINT PreferredHeight);
+typedef EFI_STATUS (XTCDECL *PBL_FRAMEBUFFER_GET_PREFERRED_SCREEN_RESOLUTION)(OUT PUINT PreferredWidth, OUT PUINT PreferredHeight);
-typedef EFI_STATUS (*PBL_FRAMEBUFFER_INITIALIZE)();
+typedef EFI_STATUS (XTCDECL *PBL_FRAMEBUFFER_INITIALIZE)();
-typedef EFI_STATUS (*PBL_FRAMEBUFFER_SET_SCREEN_RESOLUTION)(IN UINT Width, IN UINT Height);
+typedef EFI_STATUS (XTCDECL *PBL_FRAMEBUFFER_SET_SCREEN_RESOLUTION)(IN UINT Width, IN UINT Height);
 
 /* Boot parameters structure */
 typedef struct _XTBL_BOOT_PARAMETERS
@@ -152,6 +185,7 @@ typedef struct _XTBL_BOOT_PARAMETERS
 typedef struct _XTBL_BOOTMENU_ITEM
 {
     PWCHAR EntryName;
+    PWCHAR FullName;
     PWCHAR ShortName;
     PLIST_ENTRY Options;
 } XTBL_BOOTMENU_ITEM, *PXTBL_BOOTMENU_ITEM;
@@ -247,13 +281,10 @@ typedef struct _XTBL_PAGE_MAPPING
 /* XTLDR Status data */
 typedef struct _XTBL_STATUS
 {
-    PBL_XT_BOOT_MENU BootMenu;
-    BOOLEAN BootServices;
-    ULONG DebugPort;
     PVOID LoaderBase;
     ULONGLONG LoaderSize;
+    BOOLEAN BootServices;
     INT_PTR SecureBoot;
-    CPPORT SerialPort;
 } XTBL_STATUS, *PXTBL_STATUS;
 
 /* XT framebuffer video mode information structure definition */
@@ -354,9 +385,17 @@ typedef struct _XTBL_LOADER_PROTOCOL
         PBL_REGISTER_BOOT_PROTOCOL RegisterProtocol;
     } Boot;
     struct
+    {
+        PBL_BOOTUTILS_GET_BOOLEAN_PARAMETER GetBooleanParameter;
+        PBL_BOOTUTILS_GET_TRAMPOLINE_INFORMATION GetTrampolineInformation;
+    } BootUtils;
+    struct
     {
         PBL_CONFIG_GET_BOOLEAN_VALUE GetBooleanValue;
+        PBL_CONFIG_GET_BOOT_OPTION_VALUE GetBootOptionValue;
+        PBL_CONFIG_GET_EDITABLE_OPTIONS GetEditableOptions;
         PBL_CONFIG_GET_VALUE GetValue;
+        PBL_CONFIG_SET_BOOT_OPTION_VALUE SetBootOptionValue;
     } Config;
     struct
     {
@@ -373,6 +412,13 @@ typedef struct _XTBL_LOADER_PROTOCOL
         PBL_CONSOLE_WRITE Write;
     } Console;
     struct
+    {
+        PBL_CPU_CPUID CpuId;
+        PBL_CPU_READ_CONTROL_REGISTER ReadControlRegister;
+        PBL_CPU_READ_MODEL_SPECIFIC_REGISTER ReadModelSpecificRegister;
+        PBL_CPU_WRITE_CONTROL_REGISTER WriteControlRegister;
+    } Cpu;
+    struct
     {
         PBL_DEBUG_PRINT Print;
     } Debug;
@@ -383,10 +429,27 @@ typedef struct _XTBL_LOADER_PROTOCOL
         PBL_READ_FILE ReadFile;
     } Disk;
     struct
+    {
+        PBL_IOPORT_READ_8 Read8;
+        PBL_IOPORT_READ_16 Read16;
+        PBL_IOPORT_READ_32 Read32;
+        PBL_IOPORT_WRITE_8 Write8;
+        PBL_IOPORT_WRITE_16 Write16;
+        PBL_IOPORT_WRITE_32 Write32;
+    } IoPort;
+    struct
+    {
+        PBL_LLIST_INITIALIZE_HEAD InitializeHead;
+        PBL_LLIST_INSERT_HEAD InsertHead;
+        PBL_LLIST_INSERT_TAIL InsertTail;
+        PBL_LLIST_REMOVE_ENTRY RemoveEntry;
+    } LinkedList;
+    struct
     {
         PBL_ALLOCATE_PAGES AllocatePages;
         PBL_ALLOCATE_POOL AllocatePool;
         PBL_BUILD_PAGE_MAP BuildPageMap;
+        PBL_COMPARE_MEMORY CompareMemory;
         PBL_COPY_MEMORY CopyMemory;
         PBL_FREE_PAGES FreePages;
         PBL_FREE_POOL FreePool;
@@ -397,6 +460,7 @@ typedef struct _XTBL_LOADER_PROTOCOL
         PBL_MAP_EFI_MEMORY MapEfiMemory;
         PBL_MAP_PAGE MapPage;
         PBL_MAP_VIRTUAL_MEMORY MapVirtualMemory;
+        PBL_MOVE_MEMORY MoveMemory;
         PBL_PHYSICAL_ADDRESS_TO_VIRTUAL PhysicalAddressToVirtual;
         PBL_PHYSICAL_LIST_TO_VIRTUAL PhysicalListToVirtual;
         PBL_SET_MEMORY SetMemory;
@@ -412,6 +476,13 @@ typedef struct _XTBL_LOADER_PROTOCOL
         PBL_OPEN_PROTOCOL_HANDLE OpenHandle;
     } Protocol;
     struct
+    {
+        PBL_STRING_COMPARE Compare;
+        PBL_STRING_LENGTH Length;
+        PBL_STRING_TO_WIDESTRING ToWideString;
+        PBL_STRING_TRIM Trim;
+    } String;
+    struct
     {
         PBL_TUI_DISPLAY_ERROR_DIALOG DisplayErrorDialog;
         PBL_TUI_DISPLAY_INFO_DIALOG DisplayInfoDialog;
@@ -435,7 +506,16 @@ typedef struct _XTBL_LOADER_PROTOCOL
         PBL_SLEEP_EXECUTION SleepExecution;
         PBL_START_EFI_IMAGE StartEfiImage;
         PBL_WAIT_FOR_EFI_EVENT WaitForEfiEvent;
-    } Util;
+    } Utils;
+    struct
+    {
+        PBL_WIDESTRING_COMPARE Compare;
+        PBL_WIDESTRING_COMPARE_INSENSITIVE CompareInsensitive;
+        PBL_WIDESTRING_CONCATENATE Concatenate;
+        PBL_WIDESTRING_FORMAT Format;
+        PBL_WIDESTRING_LENGTH Length;
+        PBL_WIDESTRING_TOKENIZE Tokenize;
+    } WideString;
 } XTBL_LOADER_PROTOCOL, *PXTBL_LOADER_PROTOCOL;
 
 #endif /* __XTDK_BLTYPES_H */

sdk/xtdk/exfuncs.h

@@ -14,26 +14,32 @@
 
 
 /* Kernel Executive routines forward references */
+XTCLINK
 XTFASTCALL
 BOOLEAN
 ExAcquireRundownProtection(IN PEX_RUNDOWN_REFERENCE Descriptor);
 
+XTCLINK
 XTFASTCALL
 VOID
 ExCompleteRundownProtection(IN PEX_RUNDOWN_REFERENCE Descriptor);
 
+XTCLINK
 XTFASTCALL
 VOID
 ExInitializeRundownProtection(IN PEX_RUNDOWN_REFERENCE Descriptor);
 
+XTCLINK
 XTFASTCALL
 VOID
 ExReInitializeRundownProtection(IN PEX_RUNDOWN_REFERENCE Descriptor);
 
+XTCLINK
 XTFASTCALL
 VOID
 ExReleaseRundownProtection(IN PEX_RUNDOWN_REFERENCE Descriptor);
 
+XTCLINK
 XTFASTCALL
 VOID
 ExWaitForRundownProtectionRelease(IN PEX_RUNDOWN_REFERENCE Descriptor);

sdk/xtdk/hlfuncs.h

@@ -14,16 +14,38 @@
 #include <xttypes.h>
 
 
-/* Routines used by XTLDR */
+/* Hardware layer routines forward references */
-XTCDECL
+XTCLINK
-XTSTATUS
+XTAPI
-HlComPortPutByte(IN PCPPORT Port,
+UCHAR
-                 IN UCHAR Byte);
+HlReadRegister8(IN PVOID Register);
 
-XTCDECL
+XTCLINK
-XTSTATUS
+XTAPI
-HlInitializeComPort(IN OUT PCPPORT Port,
+USHORT
-                    IN PUCHAR PortAddress,
+HlReadRegister16(IN PVOID Register);
-                    IN ULONG BaudRate);
+
+XTCLINK
+XTAPI
+ULONG
+HlReadRegister32(IN PVOID Register);
+
+XTCLINK
+XTAPI
+VOID
+HlWriteRegister8(IN PVOID Register,
+                 IN UCHAR Value);
+
+XTCLINK
+XTAPI
+VOID
+HlWriteRegister16(IN PVOID Register,
+                  IN USHORT Value);
+
+XTCLINK
+XTAPI
+VOID
+HlWriteRegister32(IN PVOID Register,
+                  IN ULONG Value);
 
 #endif /* __XTDK_HLFUNCS_H */

sdk/xtdk/hltypes.h

@@ -187,7 +187,7 @@ typedef struct _GENERIC_ADDRESS
     UCHAR BitOffset;
     UCHAR Reserved;
     PHYSICAL_ADDRESS Address;
-} GENERIC_ADDRESS, *PGENERIC_ADDRESS;
+} PACKED GENERIC_ADDRESS, *PGENERIC_ADDRESS;
 
 /* Each ACPI table description header structure */
 typedef struct _ACPI_DESCRIPTION_HEADER
@@ -201,14 +201,14 @@ typedef struct _ACPI_DESCRIPTION_HEADER
     ULONG OemRevision;
     UCHAR CreatorID[4];
     ULONG CreatorRev;
-} ACPI_DESCRIPTION_HEADER, *PACPI_DESCRIPTION_HEADER;
+} PACKED ACPI_DESCRIPTION_HEADER, *PACPI_DESCRIPTION_HEADER;
 
 /* Each ACPI subtable description header structure */
 typedef struct _ACPI_SUBTABLE_HEADER
 {
     UCHAR Type;
     UCHAR Length;
-} ACPI_SUBTABLE_HEADER, *PACPI_SUBTABLE_HEADER;
+} PACKED ACPI_SUBTABLE_HEADER, *PACPI_SUBTABLE_HEADER;
 
 /* ACPI cache list structure */
 typedef struct _ACPI_CACHE_LIST
@@ -229,14 +229,14 @@ typedef struct _ACPI_RSDP
     ULONGLONG XsdtAddress;
     UCHAR XChecksum;
     UCHAR Reserved[3];
-} ACPI_RSDP, *PACPI_RSDP;
+} PACKED ACPI_RSDP, *PACPI_RSDP;
 
 /* ACPI Root System Description Table (RSDT) structure */
 typedef struct _ACPI_RSDT
 {
     ACPI_DESCRIPTION_HEADER Header;
     ULONG Tables[];
-} ACPI_RSDT, *PACPI_RSDT;
+} PACKED ACPI_RSDT, *PACPI_RSDT;
 
 /* ACPI eXtended Root System Description Table (XSDT) structure */
 typedef struct _ACPI_XSDT
@@ -303,7 +303,7 @@ typedef struct _ACPI_FADT
     GENERIC_ADDRESS XGp1Blk;
     GENERIC_ADDRESS SleepControlReg;
     GENERIC_ADDRESS SleepStatusReg;
-} ACPI_FADT, *PACPI_FADT;
+} PACKED ACPI_FADT, *PACPI_FADT;
 
 /* ACPI Multiple APIC Description Table (MADT) structure */
 typedef struct _ACPI_MADT
@@ -312,26 +312,26 @@ typedef struct _ACPI_MADT
     ULONG LocalApicAddress;
     ULONG Flags;
     ULONG ApicTables[];
-} ACPI_MADT, *PACPI_MADT;
+} PACKED ACPI_MADT, *PACPI_MADT;
 
 /* ACPI Local APIC MADT subtable structure */
 typedef struct _ACPI_MADT_LOCAL_APIC
 {
     ACPI_SUBTABLE_HEADER Header;
-    UCHAR ProcessorId;
+    UCHAR AcpiId;
-    UCHAR Id;
+    UCHAR ApicId;
-    ULONG LapicFlags;
+    ULONG Flags;
-} ACPI_MADT_LOCAL_APIC, *PACPI_MADT_LOCAL_APIC;
+} PACKED ACPI_MADT_LOCAL_APIC, *PACPI_MADT_LOCAL_APIC;
 
 /* ACPI Local X2APIC MADT subtable structure */
 typedef struct _ACPI_MADT_LOCAL_X2APIC
 {
     ACPI_SUBTABLE_HEADER Header;
     USHORT Reserved;
-    ULONG Id;
+    ULONG ApicId;
-    ULONG LapicFlags;
+    ULONG Flags;
-    ULONG ProcessorId;
+    ULONG AcpiId;
-} ACPI_MADT_LOCAL_X2APIC, *PACPI_MADT_LOCAL_X2APIC;
+} PACKED ACPI_MADT_LOCAL_X2APIC, *PACPI_MADT_LOCAL_X2APIC;
 
 /* ACPI System Information structure */
 typedef struct _ACPI_SYSTEM_INFO
@@ -342,12 +342,12 @@ typedef struct _ACPI_SYSTEM_INFO
     ULONG IoApicCount;
     ULONG IntiCount;
     ULONG LintiCount;
-    ULONG ImcrPresent;
+    BOOLEAN ImcrPresent;
     ULONG ApicBase;
     PPROCESSOR_IDENTITY CpuInfo;
     ULONG IoApicPhysicalBase[APIC_MAX_IOAPICS];
-    PULONG IoApicVirtualBase[APIC_MAX_IOAPICS];
+    ULONG IoApicVirtualBase[APIC_MAX_IOAPICS];
-    ULONG IoApicIntiBase[APIC_MAX_IOAPICS];
+    ULONG IoApicVectorBase[APIC_MAX_IOAPICS];
 } ACPI_SYSTEM_INFO, *PACPI_SYSTEM_INFO;
 
 /* ACPI Timer information structure */
@@ -357,16 +357,17 @@ typedef struct _ACPI_TIMER_INFO
     ULONG MsbMask;
 } ACPI_TIMER_INFO, *PACPI_TIMER_INFO;
 
-/* Serial (COM) port initial state */
+/* Serial (COM) port state */
 typedef struct _CPPORT
 {
     PUCHAR Address;
     ULONG Baud;
     USHORT Flags;
+    UCHAR Ring;
 } CPPORT, *PCPPORT;
 
-/* HAL framebuffer data structure */
+/* Framebuffer data structure */
-typedef struct _HAL_FRAMEBUFFER_DATA
+typedef struct _HL_FRAMEBUFFER_DATA
 {
     BOOLEAN Initialized;
     PVOID Address;
@@ -374,7 +375,7 @@ typedef struct _HAL_FRAMEBUFFER_DATA
     UINT Width;
     UINT Height;
     UINT PixelsPerScanLine;
-    UINT BitsPerPixel;
+    UINT BytesPerPixel;
     UINT Pitch;
     PVOID Font;
     struct
@@ -388,14 +389,29 @@ typedef struct _HAL_FRAMEBUFFER_DATA
         USHORT ReservedShift;
         USHORT ReservedSize;
     } Pixels;
-} HAL_FRAMEBUFFER_DATA, *PHAL_FRAMEBUFFER_DATA;
+} HL_FRAMEBUFFER_DATA, *PHL_FRAMEBUFFER_DATA;
+
+/* Scroll region data structure */
+typedef struct _HL_SCROLL_REGION_DATA
+{
+    ULONG Left;
+    ULONG Top;
+    ULONG Right;
+    ULONG Bottom;
+    ULONG WidthInChars;
+    ULONG HeightInChars;
+    ULONG CursorX;
+    ULONG CursorY;
+    ULONG BackgroundColor;
+    ULONG TextColor;
+} HL_SCROLL_REGION_DATA, *PHL_SCROLL_REGION_DATA;
 
 /* Processor identity structure */
 typedef struct _PROCESSOR_IDENTITY
 {
-    UCHAR Id;
+    ULONG AcpiId;
-    UCHAR CpuId;
+    ULONG ApicId;
-    UCHAR CpuNumber;
+    USHORT CpuNumber;
     BOOLEAN Bsp;
     BOOLEAN Started;
 } PROCESSOR_IDENTITY, *PPROCESSOR_IDENTITY;