xt-sys/exectos
xt-sys/exectos
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Pass memory mapping information to the kernel
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This commit is contained in:
Rafal Kupiec 2024-01-29 19:40:05 +01:00
parent a72f87e731
commit 8f7641d91f
Signed by: belliash
GPG Key ID: 4E829243E0CFE6B4
1 changed files with 62 additions and 9 deletions
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71
xtldr/modules/xtos_o/xtos.c
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@ -48,6 +48,55 @@ XtGetDisplayInformation(OUT PLOADER_GRAPHICS_INFORMATION_BLOCK InformationBlock,
InformationBlock->Pitch = FrameBufferInfo->Pitch;
}
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_MAPPING));
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_MAPPING MemoryDescriptor = (PLOADER_MEMORY_MAPPING)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_MAPPING);
ListEntry = ListEntry->Flink;
}
XtLdrProtocol->Memory.PhysicalListToVirtual(PageMap, MemoryDescriptorList, PhysicalBase, VirtualAddress);
return STATUS_EFI_SUCCESS;
}
/**
* Starts the operating system according to the provided parameters using XTOS boot protocol.
*
@ -244,6 +293,15 @@ XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
/* 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: %lx)\n", Status);
return Status;
}
/* Store virtual address of kernel initialization block for future kernel call */
KernelParameters = (PKERNEL_INITIALIZATION_BLOCK)VirtualAddress;
@ -256,15 +314,6 @@ XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
return Status;
}
/* 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: %lx)\n", Status);
return Status;
}
/* Get kernel entry point */
XtPeCoffProtocol->GetEntryPoint(ImageContext, (PVOID)&KernelEntryPoint);
@ -446,6 +495,10 @@ XtpInitializeLoaderBlock(IN PXTBL_PAGE_MAPPING PageMap,
*VirtualAddress += (UINT_PTR)(FrameBufferPages * EFI_PAGE_SIZE);
}
/* Initialize memory descriptor list */
RtlInitializeListHead(&LoaderBlock->MemoryDescriptorListHead);
XtGetMemoryDescriptorList(PageMap, *VirtualAddress, &LoaderBlock->MemoryDescriptorListHead);
/* Return success */
return STATUS_EFI_SUCCESS;
}