xt-sys/exectos
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Initial XtpLoadModule() implementation
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This commit is contained in:
Rafal Kupiec 2022-11-17 22:44:53 +01:00
parent 0db01053ab
commit 2cb2328f45
Signed by: belliash
GPG Key ID: 4E829243E0CFE6B4
2 changed files with 61 additions and 14 deletions
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10
xtldr/modules/xtos/includes/xtos.h
View File

@ -12,6 +12,10 @@
#include <blmod.h>
/* XTOS kernel entry point */
typedef VOID (XTAPI *PXT_ENTRY_POINT)(IN PKERNEL_INITIALIZATION_BLOCK BootParameters);
/* XTOS boot protocol related routines forward references */
EFI_STATUS
XtBootSystem(IN PXT_BOOT_PROTOCOL_PARAMETERS Parameters);
@ -19,6 +23,12 @@ EFI_STATUS
XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
IN PXT_BOOT_PROTOCOL_PARAMETERS Parameters);
EFI_STATUS
XtpLoadModule(IN PEFI_FILE_HANDLE BootDir,
IN PWCHAR FileName,
IN LOADER_MEMORY_TYPE MemoryType,
OUT PPECOFF_IMAGE_CONTEXT *ImageContext);
EFI_STATUS
BlXtLdrModuleMain(EFI_HANDLE ImageHandle,
PEFI_SYSTEM_TABLE SystemTable);

65
xtldr/modules/xtos/xtos.c
View File

@ -90,7 +90,7 @@ XtBootSystem(IN PXT_BOOT_PROTOCOL_PARAMETERS Parameters)
}
else
{
/* Fallback to /ExectOS by default */
/* Fallback to '/ExectOS' by default */
XtLdrProtocol->DbgPrint(L"WARNING: No system path set, falling back to defaults\n");
Parameters->SystemPath = L"\\ExectOS";
}
@ -103,7 +103,10 @@ XtBootSystem(IN PXT_BOOT_PROTOCOL_PARAMETERS Parameters)
}
/* Print a debug message */
XtLdrProtocol->DbgPrint(L"ARC Path: %S\nSystem Path: %S\nKernel File: %S\nBoot Arguments: %S\n",
XtLdrProtocol->DbgPrint(L"[XTOS] ARC Path: %S\n"
L"[XTOS] System Path: %S\n"
L"[XTOS] Kernel File: %S\n"
L"[XTOS] Boot Arguments: %S\n",
Parameters->ArcName, Parameters->SystemPath,
Parameters->KernelFile, Parameters->Arguments);
@ -159,32 +162,65 @@ EFI_STATUS
XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
IN PXT_BOOT_PROTOCOL_PARAMETERS Parameters)
{
PEFI_FILE_HANDLE KernelHandle;
PPECOFF_IMAGE_CONTEXT Image;
PPECOFF_IMAGE_CONTEXT Image = NULL;
EFI_STATUS Status;
XtLdrProtocol->DbgPrint(L"Issuing XT startup sequence\n");
/* Initialize XTOS startup sequence */
XtLdrProtocol->DbgPrint(L"Initializing XTOS startup sequence\n");
/* Open kernel file */
Status = BootDir->Open(BootDir, &KernelHandle, Parameters->KernelFile, EFI_FILE_MODE_READ, 0);
/* Load the kernel */
Status = XtpLoadModule(BootDir, Parameters->KernelFile, LoaderSystemCode, &Image);
if(Status != STATUS_EFI_SUCCESS)
{
/* Failed to load the kernel */
return Status;
}
/* Return success */
return STATUS_EFI_SUCCESS;
}
EFI_STATUS
XtpLoadModule(IN PEFI_FILE_HANDLE BootDir,
IN PWCHAR FileName,
IN LOADER_MEMORY_TYPE MemoryType,
OUT PPECOFF_IMAGE_CONTEXT *ImageContext)
{
PEFI_FILE_HANDLE ModuleHandle;
USHORT SubSystem;
EFI_STATUS Status;
/* Print debug message */
XtLdrProtocol->DbgPrint(L"Loading %S ... \n", FileName);
/* Open module file */
Status = BootDir->Open(BootDir, &ModuleHandle, FileName, EFI_FILE_MODE_READ, 0);
if(Status != STATUS_EFI_SUCCESS)
{
/* Unable to open the file */
XtLdrProtocol->DbgPrint(L"ERROR: Failed to open the XTOS kernel\n");
XtLdrProtocol->DbgPrint(L"ERROR: Failed to open '%S'\n", FileName);
return Status;
}
/* Load the PE/COFF kernel file */
Status = XtPeCoffProtocol->Load(KernelHandle, LoaderSystemCode, NULL, &Image);
/* Load the PE/COFF image file */
Status = XtPeCoffProtocol->Load(ModuleHandle, MemoryType, NULL, ImageContext);
if(Status != STATUS_EFI_SUCCESS)
{
/* Unable to load the file */
XtLdrProtocol->DbgPrint(L"ERROR: Failed to load the XTOS kernel\n");
XtLdrProtocol->DbgPrint(L"ERROR: Failed to load '%S'\n", FileName);
return Status;
}
/* Close kernel file */
KernelHandle->Close(KernelHandle);
/* Close image file */
ModuleHandle->Close(ModuleHandle);
/* Check PE/COFF image subsystem */
XtPeCoffProtocol->GetSubSystem(*ImageContext, &SubSystem);
if(SubSystem != PECOFF_IMAGE_SUBSYSTEM_XT_NATIVE_APPLICATION &&
SubSystem != PECOFF_IMAGE_SUBSYSTEM_XT_NATIVE_DRIVER)
{
XtLdrProtocol->DbgPrint(L"WARNING: Loaded PE/COFF image with non-XT subsystem set\n");
}
/* Return success */
return STATUS_EFI_SUCCESS;
@ -227,5 +263,6 @@ BlXtLdrModuleMain(IN EFI_HANDLE ImageHandle,
XtBootProtocol.BootSystem = XtBootSystem;
/* Register XTOS boot protocol */
return EfiSystemTable->BootServices->InstallProtocolInterface(&Handle, &Guid, EFI_NATIVE_INTERFACE, &XtBootProtocol);
return EfiSystemTable->BootServices->InstallProtocolInterface(&Handle, &Guid, EFI_NATIVE_INTERFACE,
&XtBootProtocol);
}