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Ring3: Removed gEfiHobPageTableInfoGuid.

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This commit is contained in:
Mikhail Krichanov 2024-12-02 12:48:18 +03:00
parent a4886f5df1
commit 9558d691d1
7 changed files with 154 additions and 64 deletions
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8
MdeModulePkg/Core/Dxe/DxeMain.inf
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@ -151,7 +151,6 @@
gUefiImageLoaderImageContextGuid ## CONSUMES ## HOB gUefiImageLoaderImageContextGuid ## CONSUMES ## HOB
gEfiGlobalVariableGuid ## SOMETIMES_CONSUMES ## SysCall gEfiGlobalVariableGuid ## SOMETIMES_CONSUMES ## SysCall
gEarlyPL011BaseAddressGuid ## CONSUMES gEarlyPL011BaseAddressGuid ## CONSUMES
gEfiHobPageTableInfoGuid ## CONSUMES ## HOB
[Ppis] [Ppis]
gEfiVectorHandoffInfoPpiGuid ## UNDEFINED # HOB gEfiVectorHandoffInfoPpiGuid ## UNDEFINED # HOB
@ -224,9 +223,14 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUserSpace ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdEnableUserSpace ## CONSUMES
gEfiMdePkgTokenSpaceGuid.PcdDebugRaisePropertyMask ## CONSUMES gEfiMdePkgTokenSpaceGuid.PcdDebugRaisePropertyMask ## CONSUMES
gEfiMdePkgTokenSpaceGuid.PcdImageProtectionPolicy ## CONSUMES gEfiMdePkgTokenSpaceGuid.PcdImageProtectionPolicy ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdSerialUseMmio ## CONSUMES
[Pcd.IA32,Pcd.X64]
gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdUse5LevelPageTable ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrMask ## CONSUMES
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaBase ## CONSUMES gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaBase ## CONSUMES
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaSize ## CONSUMES gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdSerialUseMmio ## CONSUMES
# [Hob] # [Hob]
# RESOURCE_DESCRIPTOR ## CONSUMES # RESOURCE_DESCRIPTOR ## CONSUMES

181
MdeModulePkg/Core/Dxe/SysCall/X64/InitializeMsr.c
View File

@ -8,6 +8,7 @@
#include "DxeMain.h" #include "DxeMain.h"
#include <Register/Intel/ArchitecturalMsr.h> #include <Register/Intel/ArchitecturalMsr.h>
#include <Register/Intel/Cpuid.h>
#include <IndustryStandard/PageTable.h> #include <IndustryStandard/PageTable.h>
VOID VOID
@ -17,30 +18,144 @@ MakeUserPageTableTemplate (
OUT UINTN *UserPageTableTemplateSize OUT UINTN *UserPageTableTemplateSize
) )
{ {
EFI_HOB_GUID_TYPE *GuidHob; UINT32 RegEax;
EFI_PAGE_TABLE_INFO *PageTableInfo; CPUID_STRUCTURED_EXTENDED_FEATURE_FLAGS_ECX EcxFlags;
UINTN BigPageAddress; UINT32 RegEdx;
EFI_PHYSICAL_ADDRESS PageAddress; UINT8 PhysicalAddressBits;
UINTN IndexOfPml5Entries; UINT32 NumberOfPml5EntriesNeeded;
UINTN IndexOfPml4Entries; UINT32 NumberOfPml4EntriesNeeded;
UINTN IndexOfPdpEntries; UINT32 NumberOfPdpEntriesNeeded;
UINTN IndexOfPageDirectoryEntries; VOID *Hob;
PAGE_MAP_AND_DIRECTORY_POINTER *PageMapLevel5Entry; BOOLEAN Page5LevelEnabled;
PAGE_MAP_AND_DIRECTORY_POINTER *PageMapLevel4Entry; BOOLEAN Page1GSupport;
PAGE_MAP_AND_DIRECTORY_POINTER *PageMap; UINT64 AddressEncMask;
PAGE_MAP_AND_DIRECTORY_POINTER *PageDirectoryPointerEntry; IA32_CR4 Cr4;
PAGE_TABLE_ENTRY *PageDirectoryEntry; UINTN TotalPagesNum;
PAGE_TABLE_1G_ENTRY *PageDirectory1GEntry; UINTN BigPageAddress;
EFI_PHYSICAL_ADDRESS PageAddress;
UINTN IndexOfPml5Entries;
UINTN IndexOfPml4Entries;
UINTN IndexOfPdpEntries;
UINTN IndexOfPageDirectoryEntries;
PAGE_MAP_AND_DIRECTORY_POINTER *PageMapLevel5Entry;
PAGE_MAP_AND_DIRECTORY_POINTER *PageMapLevel4Entry;
PAGE_MAP_AND_DIRECTORY_POINTER *PageMap;
PAGE_MAP_AND_DIRECTORY_POINTER *PageDirectoryPointerEntry;
PAGE_TABLE_ENTRY *PageDirectoryEntry;
PAGE_TABLE_1G_ENTRY *PageDirectory1GEntry;
GuidHob = GetFirstGuidHob (&gEfiHobPageTableInfoGuid); //
if (GuidHob == NULL) { // Set PageMapLevel5Entry to suppress incorrect compiler/analyzer warnings
DEBUG ((DEBUG_ERROR, "Core: Could not retrieve PageTableInfo HOB.\n")); //
CpuDeadLoop (); PageMapLevel5Entry = NULL;
//
// Make sure AddressEncMask is contained to smallest supported address field
//
AddressEncMask = PcdGet64 (PcdPteMemoryEncryptionAddressOrMask) & PAGING_1G_ADDRESS_MASK_64;
Page1GSupport = FALSE;
if (PcdGetBool (PcdUse1GPageTable)) {
AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
if (RegEax >= 0x80000001) {
AsmCpuid (0x80000001, NULL, NULL, NULL, &RegEdx);
if ((RegEdx & BIT26) != 0) {
Page1GSupport = TRUE;
}
}
} }
PageTableInfo = (EFI_PAGE_TABLE_INFO *)(GET_GUID_HOB_DATA (GuidHob)); //
// Get physical address bits supported.
//
Hob = GetFirstHob (EFI_HOB_TYPE_CPU);
if (Hob != NULL) {
PhysicalAddressBits = ((EFI_HOB_CPU *)Hob)->SizeOfMemorySpace;
} else {
AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
if (RegEax >= 0x80000008) {
AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);
PhysicalAddressBits = (UINT8)RegEax;
} else {
PhysicalAddressBits = 36;
}
}
BigPageAddress = (UINTN)AllocateAlignedPages (PageTableInfo->TotalPagesNum, PAGE_TABLE_POOL_ALIGNMENT); if (sizeof (UINTN) == sizeof (UINT64)) {
//
// If cpu has already run in 64bit long mode PEI, Page table Level in DXE must align with previous level.
//
Cr4.UintN = AsmReadCr4 ();
Page5LevelEnabled = (Cr4.Bits.LA57 != 0);
if (Page5LevelEnabled) {
ASSERT (PcdGetBool (PcdUse5LevelPageTable));
}
} else {
//
// If cpu runs in 32bit protected mode PEI, Page table Level in DXE is decided by PCD and feature capability.
//
Page5LevelEnabled = FALSE;
if (PcdGetBool (PcdUse5LevelPageTable)) {
AsmCpuidEx (
CPUID_STRUCTURED_EXTENDED_FEATURE_FLAGS,
CPUID_STRUCTURED_EXTENDED_FEATURE_FLAGS_SUB_LEAF_INFO,
NULL,
NULL,
&EcxFlags.Uint32,
NULL
);
if (EcxFlags.Bits.FiveLevelPage != 0) {
Page5LevelEnabled = TRUE;
}
}
}
//
// IA-32e paging translates 48-bit linear addresses to 52-bit physical addresses
// when 5-Level Paging is disabled,
// due to either unsupported by HW, or disabled by PCD.
//
ASSERT (PhysicalAddressBits <= 52);
if (!Page5LevelEnabled && (PhysicalAddressBits > 48)) {
PhysicalAddressBits = 48;
}
//
// Calculate the table entries needed.
//
NumberOfPml5EntriesNeeded = 1;
if (PhysicalAddressBits > 48) {
NumberOfPml5EntriesNeeded = (UINT32)LShiftU64 (1, PhysicalAddressBits - 48);
PhysicalAddressBits = 48;
}
NumberOfPml4EntriesNeeded = 1;
if (PhysicalAddressBits > 39) {
NumberOfPml4EntriesNeeded = (UINT32)LShiftU64 (1, PhysicalAddressBits - 39);
PhysicalAddressBits = 39;
}
NumberOfPdpEntriesNeeded = 1;
ASSERT (PhysicalAddressBits > 30);
NumberOfPdpEntriesNeeded = (UINT32)LShiftU64 (1, PhysicalAddressBits - 30);
//
// Pre-allocate big pages to avoid later allocations.
//
if (!Page1GSupport) {
TotalPagesNum = ((NumberOfPdpEntriesNeeded + 1) * NumberOfPml4EntriesNeeded + 1) * NumberOfPml5EntriesNeeded + 1;
} else {
TotalPagesNum = (NumberOfPml4EntriesNeeded + 1) * NumberOfPml5EntriesNeeded + 1;
}
//
// Substract the one page occupied by PML5 entries if 5-Level Paging is disabled.
//
if (!Page5LevelEnabled) {
TotalPagesNum--;
}
BigPageAddress = (UINTN)AllocateAlignedPages (TotalPagesNum, PAGE_TABLE_POOL_ALIGNMENT);
if (BigPageAddress == 0) { if (BigPageAddress == 0) {
DEBUG ((DEBUG_ERROR, "Core: Could not allocate buffer for User page table.\n")); DEBUG ((DEBUG_ERROR, "Core: Could not allocate buffer for User page table.\n"));
CpuDeadLoop (); CpuDeadLoop ();
@ -50,7 +165,7 @@ MakeUserPageTableTemplate (
// By architecture only one PageMapLevel4 exists - so lets allocate storage for it. // By architecture only one PageMapLevel4 exists - so lets allocate storage for it.
// //
PageMap = (VOID *)BigPageAddress; PageMap = (VOID *)BigPageAddress;
if (PageTableInfo->Page5LevelEnabled) { if (Page5LevelEnabled) {
// //
// By architecture only one PageMapLevel5 exists - so lets allocate storage for it. // By architecture only one PageMapLevel5 exists - so lets allocate storage for it.
// //
@ -61,7 +176,7 @@ MakeUserPageTableTemplate (
PageAddress = 0; PageAddress = 0;
for ( IndexOfPml5Entries = 0 for ( IndexOfPml5Entries = 0
; IndexOfPml5Entries < PageTableInfo->NumberOfPml5EntriesNeeded ; IndexOfPml5Entries < NumberOfPml5EntriesNeeded
; IndexOfPml5Entries++) ; IndexOfPml5Entries++)
{ {
// //
@ -72,11 +187,11 @@ MakeUserPageTableTemplate (
PageMapLevel4Entry = (VOID *)BigPageAddress; PageMapLevel4Entry = (VOID *)BigPageAddress;
BigPageAddress += SIZE_4KB; BigPageAddress += SIZE_4KB;
if (PageTableInfo->Page5LevelEnabled) { if (Page5LevelEnabled) {
// //
// Make a PML5 Entry // Make a PML5 Entry
// //
PageMapLevel5Entry->Uint64 = (UINT64)(UINTN)PageMapLevel4Entry | PageTableInfo->AddressEncMask; PageMapLevel5Entry->Uint64 = (UINT64)(UINTN)PageMapLevel4Entry | AddressEncMask;
PageMapLevel5Entry->Bits.ReadWrite = 1; PageMapLevel5Entry->Bits.ReadWrite = 1;
PageMapLevel5Entry->Bits.UserSupervisor = 1; PageMapLevel5Entry->Bits.UserSupervisor = 1;
PageMapLevel5Entry->Bits.Present = 1; PageMapLevel5Entry->Bits.Present = 1;
@ -84,7 +199,7 @@ MakeUserPageTableTemplate (
} }
for ( IndexOfPml4Entries = 0 for ( IndexOfPml4Entries = 0
; IndexOfPml4Entries < (PageTableInfo->NumberOfPml5EntriesNeeded == 1 ? PageTableInfo->NumberOfPml4EntriesNeeded : 512) ; IndexOfPml4Entries < (NumberOfPml5EntriesNeeded == 1 ? NumberOfPml4EntriesNeeded : 512)
; IndexOfPml4Entries++, PageMapLevel4Entry++) ; IndexOfPml4Entries++, PageMapLevel4Entry++)
{ {
// //
@ -97,26 +212,26 @@ MakeUserPageTableTemplate (
// //
// Make a PML4 Entry // Make a PML4 Entry
// //
PageMapLevel4Entry->Uint64 = (UINT64)(UINTN)PageDirectoryPointerEntry | PageTableInfo->AddressEncMask; PageMapLevel4Entry->Uint64 = (UINT64)(UINTN)PageDirectoryPointerEntry | AddressEncMask;
PageMapLevel4Entry->Bits.ReadWrite = 1; PageMapLevel4Entry->Bits.ReadWrite = 1;
PageMapLevel4Entry->Bits.UserSupervisor = 1; PageMapLevel4Entry->Bits.UserSupervisor = 1;
PageMapLevel4Entry->Bits.Present = 1; PageMapLevel4Entry->Bits.Present = 1;
if (PageTableInfo->Page1GSupport) { if (Page1GSupport) {
PageDirectory1GEntry = (VOID *)PageDirectoryPointerEntry; PageDirectory1GEntry = (VOID *)PageDirectoryPointerEntry;
for (IndexOfPageDirectoryEntries = 0; IndexOfPageDirectoryEntries < 512; IndexOfPageDirectoryEntries++, PageDirectory1GEntry++, PageAddress += SIZE_1GB) { for (IndexOfPageDirectoryEntries = 0; IndexOfPageDirectoryEntries < 512; IndexOfPageDirectoryEntries++, PageDirectory1GEntry++, PageAddress += SIZE_1GB) {
// //
// Fill in the Page Directory entries // Fill in the Page Directory entries
// //
PageDirectory1GEntry->Uint64 = (UINT64)PageAddress | PageTableInfo->AddressEncMask; PageDirectory1GEntry->Uint64 = (UINT64)PageAddress | AddressEncMask;
PageDirectory1GEntry->Bits.ReadWrite = 1; PageDirectory1GEntry->Bits.ReadWrite = 1;
PageDirectory1GEntry->Bits.Present = 0; PageDirectory1GEntry->Bits.Present = 0;
PageDirectory1GEntry->Bits.MustBe1 = 1; PageDirectory1GEntry->Bits.MustBe1 = 1;
} }
} else { } else {
for ( IndexOfPdpEntries = 0 for ( IndexOfPdpEntries = 0
; IndexOfPdpEntries < (PageTableInfo->NumberOfPml4EntriesNeeded == 1 ? PageTableInfo->NumberOfPdpEntriesNeeded : 512) ; IndexOfPdpEntries < (NumberOfPml4EntriesNeeded == 1 ? NumberOfPdpEntriesNeeded : 512)
; IndexOfPdpEntries++, PageDirectoryPointerEntry++) ; IndexOfPdpEntries++, PageDirectoryPointerEntry++)
{ {
// //
@ -129,7 +244,7 @@ MakeUserPageTableTemplate (
// //
// Fill in a Page Directory Pointer Entries // Fill in a Page Directory Pointer Entries
// //
PageDirectoryPointerEntry->Uint64 = (UINT64)(UINTN)PageDirectoryEntry | PageTableInfo->AddressEncMask; PageDirectoryPointerEntry->Uint64 = (UINT64)(UINTN)PageDirectoryEntry | AddressEncMask;
PageDirectoryPointerEntry->Bits.ReadWrite = 1; PageDirectoryPointerEntry->Bits.ReadWrite = 1;
PageDirectoryPointerEntry->Bits.UserSupervisor = 1; PageDirectoryPointerEntry->Bits.UserSupervisor = 1;
PageDirectoryPointerEntry->Bits.Present = 1; PageDirectoryPointerEntry->Bits.Present = 1;
@ -138,7 +253,7 @@ MakeUserPageTableTemplate (
// //
// Fill in the Page Directory entries // Fill in the Page Directory entries
// //
PageDirectoryEntry->Uint64 = (UINT64)PageAddress | PageTableInfo->AddressEncMask; PageDirectoryEntry->Uint64 = (UINT64)PageAddress | AddressEncMask;
PageDirectoryEntry->Bits.ReadWrite = 1; PageDirectoryEntry->Bits.ReadWrite = 1;
PageDirectoryEntry->Bits.Present = 0; PageDirectoryEntry->Bits.Present = 0;
PageDirectoryEntry->Bits.MustBe1 = 1; PageDirectoryEntry->Bits.MustBe1 = 1;
@ -158,7 +273,7 @@ MakeUserPageTableTemplate (
ZeroMem (PageMapLevel4Entry, (512 - IndexOfPml4Entries) * sizeof (PAGE_MAP_AND_DIRECTORY_POINTER)); ZeroMem (PageMapLevel4Entry, (512 - IndexOfPml4Entries) * sizeof (PAGE_MAP_AND_DIRECTORY_POINTER));
} }
if (PageTableInfo->Page5LevelEnabled) { if (Page5LevelEnabled) {
// //
// For the PML5 entries we are not using fill in a null entry. // For the PML5 entries we are not using fill in a null entry.
// //
@ -166,7 +281,7 @@ MakeUserPageTableTemplate (
} }
*UserPageTableTemplate = (VOID *)PageMap; *UserPageTableTemplate = (VOID *)PageMap;
*UserPageTableTemplateSize = ALIGN_VALUE (EFI_PAGES_TO_SIZE (PageTableInfo->TotalPagesNum), PAGE_TABLE_POOL_ALIGNMENT); *UserPageTableTemplateSize = ALIGN_VALUE (EFI_PAGES_TO_SIZE (TotalPagesNum), PAGE_TABLE_POOL_ALIGNMENT);
SetUefiImageMemoryAttributes ((UINT64)PageMap, *UserPageTableTemplateSize, EFI_MEMORY_XP); SetUefiImageMemoryAttributes ((UINT64)PageMap, *UserPageTableTemplateSize, EFI_MEMORY_XP);
} }

1
MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
View File

@ -90,7 +90,6 @@
## SOMETIMES_PRODUCES ## HOB ## SOMETIMES_PRODUCES ## HOB
gEfiMemoryTypeInformationGuid gEfiMemoryTypeInformationGuid
gUefiImageLoaderImageContextGuid gUefiImageLoaderImageContextGuid
gEfiHobPageTableInfoGuid
[FeaturePcd.IA32] [FeaturePcd.IA32]
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode ## CONSUMES

11
MdeModulePkg/Core/DxeIplPeim/X64/VirtualMemory.c
View File

@ -708,7 +708,6 @@ CreateIdentityMappingPageTables (
PAGE_TABLE_1G_ENTRY *PageDirectory1GEntry; PAGE_TABLE_1G_ENTRY *PageDirectory1GEntry;
UINT64 AddressEncMask; UINT64 AddressEncMask;
IA32_CR4 Cr4; IA32_CR4 Cr4;
EFI_PAGE_TABLE_INFO PageTableInfo;
// //
// Set PageMapLevel5Entry to suppress incorrect compiler/analyzer warnings // Set PageMapLevel5Entry to suppress incorrect compiler/analyzer warnings
@ -832,16 +831,6 @@ CreateIdentityMappingPageTables (
(UINT64)TotalPagesNum (UINT64)TotalPagesNum
)); ));
PageTableInfo.NumberOfPml5EntriesNeeded = NumberOfPml5EntriesNeeded;
PageTableInfo.NumberOfPml4EntriesNeeded = NumberOfPml4EntriesNeeded;
PageTableInfo.NumberOfPdpEntriesNeeded = NumberOfPdpEntriesNeeded;
PageTableInfo.TotalPagesNum = TotalPagesNum;
PageTableInfo.Page5LevelEnabled = Page5LevelEnabled;
PageTableInfo.Page1GSupport = Page1GSupport;
PageTableInfo.AddressEncMask = AddressEncMask;
BuildGuidDataHob (&gEfiHobPageTableInfoGuid, &PageTableInfo, sizeof (EFI_PAGE_TABLE_INFO));
BigPageAddress = (UINTN)AllocatePageTableMemory (TotalPagesNum); BigPageAddress = (UINTN)AllocatePageTableMemory (TotalPagesNum);
ASSERT (BigPageAddress != 0); ASSERT (BigPageAddress != 0);

4
MdePkg/Include/Guid/MemoryAllocationHob.h
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@ -21,12 +21,8 @@
#define EFI_HOB_MEMORY_ALLOC_MODULE_GUID \ #define EFI_HOB_MEMORY_ALLOC_MODULE_GUID \
{0xf8e21975, 0x899, 0x4f58, {0xa4, 0xbe, 0x55, 0x25, 0xa9, 0xc6, 0xd7, 0x7a} } {0xf8e21975, 0x899, 0x4f58, {0xa4, 0xbe, 0x55, 0x25, 0xa9, 0xc6, 0xd7, 0x7a} }
#define EFI_HOB_PAGE_TABLE_INFO_GUID \
{0xac992fe9, 0xb0cc, 0x45df, {0xae, 0xcf, 0x51, 0x5a, 0xd2, 0xc4, 0xe8, 0xb3} }
extern EFI_GUID gEfiHobMemoryAllocBspStoreGuid; extern EFI_GUID gEfiHobMemoryAllocBspStoreGuid;
extern EFI_GUID gEfiHobMemoryAllocStackGuid; extern EFI_GUID gEfiHobMemoryAllocStackGuid;
extern EFI_GUID gEfiHobMemoryAllocModuleGuid; extern EFI_GUID gEfiHobMemoryAllocModuleGuid;
extern EFI_GUID gEfiHobPageTableInfoGuid;
#endif #endif

10
MdePkg/Include/Library/MemoryAllocationLib.h
View File

@ -14,16 +14,6 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#ifndef __MEMORY_ALLOCATION_LIB_H__ #ifndef __MEMORY_ALLOCATION_LIB_H__
#define __MEMORY_ALLOCATION_LIB_H__ #define __MEMORY_ALLOCATION_LIB_H__
typedef struct {
UINT32 NumberOfPml5EntriesNeeded;
UINT32 NumberOfPml4EntriesNeeded;
UINT32 NumberOfPdpEntriesNeeded;
UINTN TotalPagesNum;
BOOLEAN Page5LevelEnabled;
BOOLEAN Page1GSupport;
UINT64 AddressEncMask;
} EFI_PAGE_TABLE_INFO;
/** /**
Allocates one or more 4KB pages of type EfiBootServicesData. Allocates one or more 4KB pages of type EfiBootServicesData.

3
MdePkg/MdePkg.dec
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@ -813,9 +813,6 @@
## Include/Guid/MemoryAllocationHob.h ## Include/Guid/MemoryAllocationHob.h
gEfiHobMemoryAllocBspStoreGuid = { 0x564B33CD, 0xC92A, 0x4593, { 0x90, 0xBF, 0x24, 0x73, 0xE4, 0x3C, 0x63, 0x22 }} gEfiHobMemoryAllocBspStoreGuid = { 0x564B33CD, 0xC92A, 0x4593, { 0x90, 0xBF, 0x24, 0x73, 0xE4, 0x3C, 0x63, 0x22 }}
## Include/Guid/MemoryAllocationHob.h
gEfiHobPageTableInfoGuid = { 0xAC992FE9, 0xB0CC, 0x45DF, { 0xAE, 0xCF, 0x51, 0x5A, 0xD2, 0xC4, 0xE8, 0xB3 }}
## Include/Guid/EventLegacyBios.h ## Include/Guid/EventLegacyBios.h
gEfiEventLegacyBootGuid = { 0x2A571201, 0x4966, 0x47F6, { 0x8B, 0x86, 0xF3, 0x1E, 0x41, 0xF3, 0x2F, 0x10 }} gEfiEventLegacyBootGuid = { 0x2A571201, 0x4966, 0x47F6, { 0x8B, 0x86, 0xF3, 0x1E, 0x41, 0xF3, 0x2F, 0x10 }}