#include "PiSmmCpuCommon.h"

Functions
VOID	SmmWriteUnprotectReadOnlyPage (OUT BOOLEAN *WriteProtect)

VOID	SmmWriteProtectReadOnlyPage (IN BOOLEAN WriteProtect)

BOOLEAN	InitializePageTablePool (IN UINTN PoolPages)

VOID *	AllocatePageTableMemory (IN UINTN Pages)

VOID *	GetPageTableEntry (IN UINTN PageTableBase, IN BOOLEAN Enable5LevelPaging, IN PHYSICAL_ADDRESS Address, OUT PAGE_ATTRIBUTE *PageAttribute)

UINT64	GetAttributesFromPageEntry (IN UINT64 *PageEntry)

RETURN_STATUS	ConvertMemoryPageAttributes (IN UINTN PageTableBase, IN PAGING_MODE PagingMode, IN PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Attributes, IN BOOLEAN IsSet, OUT BOOLEAN *IsModified OPTIONAL)

VOID EFIAPI	FlushTlbOnCurrentProcessor (IN OUT VOID *Buffer)

VOID	FlushTlbForAll (VOID)

EFI_STATUS	SmmSetMemoryAttributesEx (IN UINTN PageTableBase, IN PAGING_MODE PagingMode, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Attributes)

EFI_STATUS	SmmClearMemoryAttributesEx (IN UINTN PageTableBase, IN PAGING_MODE PagingMode, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Attributes)

EFI_STATUS	SmmSetMemoryAttributes (IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Attributes)

EFI_STATUS	SmmClearMemoryAttributes (IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Attributes)

EFI_STATUS	SetShadowStack (IN UINTN Cr3, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length)

EFI_STATUS EFIAPI	SmmGetSystemConfigurationTable (IN EFI_GUID TableGuid, OUT VOID *Table)

VOID	PatchSmmSaveStateMap (VOID)

VOID	PatchGdtIdtMap (VOID)

VOID	SetMemMapWithNonPresentRange (UINT64 Base, UINT64 Limit, UINT64 Attribute, IA32_MAP_ENTRY *Map, UINTN Count)

VOID	SetMemMapAttributes (EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE *MemoryAttributesTable)

EFI_STATUS EFIAPI	EdkiiSmmSetMemoryAttributes (IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Attributes)

EFI_STATUS EFIAPI	EdkiiSmmClearMemoryAttributes (IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Attributes)

VOID	GenPageTable (IN OUT UINTN *PageTable, IN PAGING_MODE PagingMode, IN UINT64 LinearAddress, IN UINT64 Length, IN IA32_MAP_ATTRIBUTE MapAttribute, IN IA32_MAP_ATTRIBUTE MapMask)

UINTN	GenSmmPageTable (IN PAGING_MODE PagingMode, IN UINT8 PhysicalAddressBits)

EFI_STATUS EFIAPI	EdkiiSmmGetMemoryAttributes (IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL This, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, OUT UINT64 Attributes)

VOID	EnablePageTableProtection (VOID)

BOOLEAN	IfReadOnlyPageTableNeeded (VOID)

VOID	SetPageTableAttributes (VOID)

Variables
BOOLEAN	mIsShadowStack = FALSE

BOOLEAN	m5LevelPagingNeeded = FALSE

PAGING_MODE	mPagingMode = PagingModeMax

PAGE_TABLE_POOL *	mPageTablePool = NULL

BOOLEAN	mIsReadOnlyPageTable = FALSE

Detailed Description

Copyright (c) 2016 - 2024, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file SmmCpuMemoryManagement.c.

Function Documentation

◆ AllocatePageTableMemory()

VOID * AllocatePageTableMemory ( IN UINTN Pages )

This API provides a way to allocate memory for page table.

This API can be called more once to allocate memory for page tables.

Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL is returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.

Parameters

Pages The number of 4 KB pages to allocate.

Returns: A pointer to the allocated buffer or NULL if allocation fails.

Definition at line 152 of file SmmCpuMemoryManagement.c.

◆ ConvertMemoryPageAttributes()

RETURN_STATUS ConvertMemoryPageAttributes	(	IN UINTN	PageTableBase,
		IN PAGING_MODE	PagingMode,
		IN PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length,
		IN UINT64	Attributes,
		IN BOOLEAN	IsSet,
		OUT BOOLEAN *IsModified	OPTIONAL
	)

This function modifies the page attributes for the memory region specified by BaseAddress and Length from their current attributes to the attributes specified by Attributes.

Caller should make sure BaseAddress and Length is at page boundary.

Parameters

[in]	PageTableBase	The page table base.
[in]	PagingMode	The paging mode.
[in]	BaseAddress	The physical address that is the start address of a memory region.
[in]	Length	The size in bytes of the memory region.
[in]	Attributes	The bit mask of attributes to modify for the memory region.
[in]	IsSet	TRUE means to set attributes. FALSE means to clear attributes.
[out]	IsModified	TRUE means page table modified. FALSE means page table not modified.

Return values

RETURN_SUCCESS	The attributes were modified for the memory region.
RETURN_ACCESS_DENIED	The attributes for the memory resource range specified by BaseAddress and Length cannot be modified.
RETURN_INVALID_PARAMETER	Length is zero. Attributes specified an illegal combination of attributes that cannot be set together.
RETURN_OUT_OF_RESOURCES	There are not enough system resources to modify the attributes of the memory resource range.
RETURN_UNSUPPORTED	The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length. The bit mask of attributes is not support for the memory resource range specified by BaseAddress and Length.

Definition at line 331 of file SmmCpuMemoryManagement.c.

◆ EdkiiSmmClearMemoryAttributes()

EFI_STATUS EFIAPI EdkiiSmmClearMemoryAttributes	(	IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *	This,
		IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length,
		IN UINT64	Attributes
	)

This function clears given attributes of the memory region specified by BaseAddress and Length.

Parameters

This	The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.
BaseAddress	The physical address that is the start address of a memory region.
Length	The size in bytes of the memory region.
Attributes	The bit mask of attributes to clear for the memory region.

Return values

EFI_SUCCESS	The attributes were cleared for the memory region.
EFI_INVALID_PARAMETER	Length is zero. Attributes specified an illegal combination of attributes that cannot be cleared together.
EFI_UNSUPPORTED	The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length. The bit mask of attributes is not supported for the memory resource range specified by BaseAddress and Length.

Definition at line 1160 of file SmmCpuMemoryManagement.c.

◆ EdkiiSmmGetMemoryAttributes()

EFI_STATUS EFIAPI EdkiiSmmGetMemoryAttributes	(	IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *	This,
		IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length,
		OUT UINT64 *	Attributes
	)

This function retrieves the attributes of the memory region specified by BaseAddress and Length. If different attributes are got from different part of the memory region, EFI_NO_MAPPING will be returned.

Parameters

This	The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.
BaseAddress	The physical address that is the start address of a memory region.
Length	The size in bytes of the memory region.
Attributes	Pointer to attributes returned.

Return values

EFI_SUCCESS	The attributes got for the memory region.
EFI_INVALID_PARAMETER	Length is zero. Attributes is NULL.
EFI_NO_MAPPING	Attributes are not consistent cross the memory region.
EFI_UNSUPPORTED	The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length.

Definition at line 1368 of file SmmCpuMemoryManagement.c.

◆ EdkiiSmmSetMemoryAttributes()

EFI_STATUS EFIAPI EdkiiSmmSetMemoryAttributes	(	IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *	This,
		IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length,
		IN UINT64	Attributes
	)

This function set given attributes of the memory region specified by BaseAddress and Length.

Parameters

This	The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.
BaseAddress	The physical address that is the start address of a memory region.
Length	The size in bytes of the memory region.
Attributes	The bit mask of attributes to set for the memory region.

Return values

EFI_SUCCESS	The attributes were set for the memory region.
EFI_INVALID_PARAMETER	Length is zero. Attributes specified an illegal combination of attributes that cannot be set together.
EFI_UNSUPPORTED	The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length. The bit mask of attributes is not supported for the memory resource range specified by BaseAddress and Length.

Definition at line 1125 of file SmmCpuMemoryManagement.c.

◆ EnablePageTableProtection()

VOID EnablePageTableProtection ( VOID )

Prevent the memory pages used for SMM page table from been overwritten.

Definition at line 1443 of file SmmCpuMemoryManagement.c.

◆ FlushTlbForAll()

VOID FlushTlbForAll ( VOID )

FlushTlb for all processors.

Definition at line 527 of file SmmCpuMemoryManagement.c.

◆ FlushTlbOnCurrentProcessor()

VOID EFIAPI FlushTlbOnCurrentProcessor ( IN OUT VOID * Buffer )

FlushTlb on current processor.

Parameters

[in,out] Buffer Pointer to private data buffer.

Definition at line 516 of file SmmCpuMemoryManagement.c.

◆ GenPageTable()

VOID GenPageTable	(	IN OUT UINTN *	PageTable,
		IN PAGING_MODE	PagingMode,
		IN UINT64	LinearAddress,
		IN UINT64	Length,
		IN IA32_MAP_ATTRIBUTE	MapAttribute,
		IN IA32_MAP_ATTRIBUTE	MapMask
	)

Create page table based on input PagingMode, LinearAddress and Length.

Parameters

[in,out]	PageTable	The pointer to the page table.
[in]	PagingMode	The paging mode.
[in]	LinearAddress	The start of the linear address range.
[in]	Length	The length of the linear address range.
[in]	MapAttribute	The MapAttribute of the linear address range
[in]	MapMask	The MapMask used for attribute. The corresponding field in Attribute is ignored if that in MapMask is 0.

Definition at line 1182 of file SmmCpuMemoryManagement.c.

◆ GenSmmPageTable()

UINTN GenSmmPageTable	(	IN PAGING_MODE	PagingMode,
		IN UINT8	PhysicalAddressBits
	)

Create page table based on input PagingMode and PhysicalAddressBits in smm.

Parameters

[in]	PagingMode	The paging mode.
[in]	PhysicalAddressBits	The bits of physical address to map.

Return values

PageTable Address

Definition at line 1238 of file SmmCpuMemoryManagement.c.

◆ GetAttributesFromPageEntry()

UINT64 GetAttributesFromPageEntry ( IN UINT64 * PageEntry )

Return memory attributes of page entry.

Parameters

[in] PageEntry The page entry.

Returns: Memory attributes of page entry.

Definition at line 281 of file SmmCpuMemoryManagement.c.

◆ GetPageTableEntry()

VOID * GetPageTableEntry	(	IN UINTN	PageTableBase,
		IN BOOLEAN	Enable5LevelPaging,
		IN PHYSICAL_ADDRESS	Address,
		OUT PAGE_ATTRIBUTE *	PageAttribute
	)

Return page table entry to match the address.

Parameters

[in]	PageTableBase	The page table base.
[in]	Enable5LevelPaging	If PML5 paging is enabled.
[in]	Address	The address to be checked.
[out]	PageAttributes	The page attribute of the page entry.

Returns: The page entry.

Definition at line 192 of file SmmCpuMemoryManagement.c.

◆ IfReadOnlyPageTableNeeded()

BOOLEAN IfReadOnlyPageTableNeeded ( VOID )

Return whether memory used by SMM page table need to be set as Read Only.

Return values

TRUE	Need to set SMM page table as Read Only.
FALSE	Do not set SMM page table as Read Only.

Definition at line 1483 of file SmmCpuMemoryManagement.c.

◆ InitializePageTablePool()

BOOLEAN InitializePageTablePool ( IN UINTN PoolPages )

Initialize a buffer pool for page table use only.

To reduce the potential split operation on page table, the pages reserved for page table should be allocated in the times of PAGE_TABLE_POOL_UNIT_PAGES and at the boundary of PAGE_TABLE_POOL_ALIGNMENT. So the page pool is always initialized with number of pages greater than or equal to the given PoolPages.

Once the pages in the pool are used up, this method should be called again to reserve at least another PAGE_TABLE_POOL_UNIT_PAGES. But usually this won't happen in practice.

Parameters

PoolPages The least page number of the pool to be created.

Return values

TRUE	The pool is initialized successfully.
FALSE	The memory is out of resource.

Definition at line 83 of file SmmCpuMemoryManagement.c.

◆ PatchGdtIdtMap()

VOID PatchGdtIdtMap ( VOID )

This function sets GDT/IDT buffer to be RO and XP.

Definition at line 888 of file SmmCpuMemoryManagement.c.

◆ PatchSmmSaveStateMap()

VOID PatchSmmSaveStateMap ( VOID )

This function sets SMM save state buffer to be RW and XP.

Definition at line 772 of file SmmCpuMemoryManagement.c.

◆ SetMemMapAttributes()

VOID SetMemMapAttributes ( EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE * MemoryAttributesTable )

This function sets memory attribute according to MemoryAttributesTable.

Parameters

MemoryAttributesTable A pointer to the buffer of SmmMemoryAttributesTable.

Definition at line 1001 of file SmmCpuMemoryManagement.c.

◆ SetMemMapWithNonPresentRange()

VOID SetMemMapWithNonPresentRange	(	UINT64	Base,
		UINT64	Limit,
		UINT64	Attribute,
		IA32_MAP_ENTRY *	Map,
		UINTN	Count
	)

This function set [Base, Limit] to the input MemoryAttribute.

Parameters

Base	Start address of range.
Limit	Limit address of range.
Attribute	The bit mask of attributes to modify for the memory region.
Map	Pointer to the array of Cr3 IA32_MAP_ENTRY.
Count	Count of IA32_MAP_ENTRY in Map.

Definition at line 940 of file SmmCpuMemoryManagement.c.

◆ SetPageTableAttributes()

VOID SetPageTableAttributes ( VOID )

This function sets memory attribute for page table.

Definition at line 1507 of file SmmCpuMemoryManagement.c.

◆ SetShadowStack()

EFI_STATUS SetShadowStack	(	IN UINTN	Cr3,
		IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length
	)

Set ShadowStack memory.

Parameters

[in]	Cr3	The page table base address.
[in]	BaseAddress	The physical address that is the start address of a memory region.
[in]	Length	The size in bytes of the memory region.

Return values

EFI_SUCCESS The shadow stack memory is set.

Definition at line 719 of file SmmCpuMemoryManagement.c.

◆ SmmClearMemoryAttributes()

EFI_STATUS SmmClearMemoryAttributes	(	IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length,
		IN UINT64	Attributes
	)

This function clears the attributes for the memory region specified by BaseAddress and Length from their current attributes to the attributes specified by Attributes.

Parameters

[in]	BaseAddress	The physical address that is the start address of a memory region.
[in]	Length	The size in bytes of the memory region.
[in]	Attributes	The bit mask of attributes to clear for the memory region.

Return values

EFI_SUCCESS	The attributes were cleared for the memory region.
EFI_ACCESS_DENIED	The attributes for the memory resource range specified by BaseAddress and Length cannot be modified.
EFI_INVALID_PARAMETER	Length is zero. Attributes specified an illegal combination of attributes that cannot be cleared together.
EFI_OUT_OF_RESOURCES	There are not enough system resources to modify the attributes of the memory resource range.
EFI_UNSUPPORTED	The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length. The bit mask of attributes is not supported for the memory resource range specified by BaseAddress and Length.

Definition at line 697 of file SmmCpuMemoryManagement.c.

◆ SmmClearMemoryAttributesEx()

EFI_STATUS SmmClearMemoryAttributesEx	(	IN UINTN	PageTableBase,
		IN PAGING_MODE	PagingMode,
		IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length,
		IN UINT64	Attributes
	)

This function clears the attributes for the memory region specified by BaseAddress and Length from their current attributes to the attributes specified by Attributes.

Parameters

[in]	PageTableBase	The page table base.
[in]	PagingMode	The paging mode.
[in]	BaseAddress	The physical address that is the start address of a memory region.
[in]	Length	The size in bytes of the memory region.
[in]	Attributes	The bit mask of attributes to clear for the memory region.

Return values

EFI_SUCCESS	The attributes were cleared for the memory region.
EFI_ACCESS_DENIED	The attributes for the memory resource range specified by BaseAddress and Length cannot be modified.
EFI_INVALID_PARAMETER	Length is zero. Attributes specified an illegal combination of attributes that cannot be cleared together.
EFI_OUT_OF_RESOURCES	There are not enough system resources to modify the attributes of the memory resource range.
EFI_UNSUPPORTED	The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length. The bit mask of attributes is not supported for the memory resource range specified by BaseAddress and Length.

Definition at line 615 of file SmmCpuMemoryManagement.c.

◆ SmmGetSystemConfigurationTable()

EFI_STATUS EFIAPI SmmGetSystemConfigurationTable	(	IN EFI_GUID *	TableGuid,
		OUT VOID **	Table
	)

Retrieves a pointer to the system configuration table from the SMM System Table based on a specified GUID.

Parameters

[in]	TableGuid	The pointer to table's GUID type.
[out]	Table	The pointer to the table associated with TableGuid in the EFI System Table.

Return values

EFI_SUCCESS	A configuration table matching TableGuid was found.
EFI_NOT_FOUND	A configuration table matching TableGuid could not be found.

Definition at line 747 of file SmmCpuMemoryManagement.c.

◆ SmmSetMemoryAttributes()

EFI_STATUS SmmSetMemoryAttributes	(	IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length,
		IN UINT64	Attributes
	)

This function sets the attributes for the memory region specified by BaseAddress and Length from their current attributes to the attributes specified by Attributes.

Parameters

[in]	BaseAddress	The physical address that is the start address of a memory region.
[in]	Length	The size in bytes of the memory region.
[in]	Attributes	The bit mask of attributes to set for the memory region.

Return values

EFI_SUCCESS	The attributes were set for the memory region.
EFI_ACCESS_DENIED	The attributes for the memory resource range specified by BaseAddress and Length cannot be modified.
EFI_INVALID_PARAMETER	Length is zero. Attributes specified an illegal combination of attributes that cannot be set together.
EFI_OUT_OF_RESOURCES	There are not enough system resources to modify the attributes of the memory resource range.
EFI_UNSUPPORTED	The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length. The bit mask of attributes is not supported for the memory resource range specified by BaseAddress and Length.

Definition at line 662 of file SmmCpuMemoryManagement.c.

◆ SmmSetMemoryAttributesEx()

EFI_STATUS SmmSetMemoryAttributesEx	(	IN UINTN	PageTableBase,
		IN PAGING_MODE	PagingMode,
		IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINT64	Length,
		IN UINT64	Attributes
	)

This function sets the attributes for the memory region specified by BaseAddress and Length from their current attributes to the attributes specified by Attributes.

Parameters

[in]	PageTableBase	The page table base.
[in]	PagingMode	The paging mode.
[in]	BaseAddress	The physical address that is the start address of a memory region.
[in]	Length	The size in bytes of the memory region.
[in]	Attributes	The bit mask of attributes to set for the memory region.

Return values

EFI_SUCCESS	The attributes were set for the memory region.
EFI_ACCESS_DENIED	The attributes for the memory resource range specified by BaseAddress and Length cannot be modified.
EFI_INVALID_PARAMETER	Length is zero. Attributes specified an illegal combination of attributes that cannot be set together.
EFI_OUT_OF_RESOURCES	There are not enough system resources to modify the attributes of the memory resource range.
EFI_UNSUPPORTED	The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length. The bit mask of attributes is not support for the memory resource range specified by BaseAddress and Length.

Definition at line 566 of file SmmCpuMemoryManagement.c.

◆ SmmWriteProtectReadOnlyPage()

VOID SmmWriteProtectReadOnlyPage ( IN BOOLEAN WriteProtect )

Write protect read-only pages.

Parameters

[in] WriteProtect If Cr0.Bits.WP should be enabled.

Definition at line 52 of file SmmCpuMemoryManagement.c.

◆ SmmWriteUnprotectReadOnlyPage()

VOID SmmWriteUnprotectReadOnlyPage ( OUT BOOLEAN * WriteProtect )

Write unprotect read-only pages if Cr0.Bits.WP is 1.

Parameters

[out] WriteProtect If Cr0.Bits.WP is enabled.

Definition at line 31 of file SmmCpuMemoryManagement.c.

Variable Documentation

◆ m5LevelPagingNeeded

BOOLEAN m5LevelPagingNeeded = FALSE

Definition at line 11 of file SmmCpuMemoryManagement.c.

◆ mIsReadOnlyPageTable

BOOLEAN mIsReadOnlyPageTable = FALSE

Definition at line 22 of file SmmCpuMemoryManagement.c.

◆ mIsShadowStack

BOOLEAN mIsShadowStack = FALSE

Definition at line 10 of file SmmCpuMemoryManagement.c.

◆ mPageTablePool

PAGE_TABLE_POOL* mPageTablePool = NULL

Definition at line 17 of file SmmCpuMemoryManagement.c.

◆ mPagingMode

PAGING_MODE mPagingMode = PagingModeMax

Definition at line 12 of file SmmCpuMemoryManagement.c.

Functions

Variables

Detailed Description

Function Documentation

◆ AllocatePageTableMemory()

◆ ConvertMemoryPageAttributes()

◆ EdkiiSmmClearMemoryAttributes()

◆ EdkiiSmmGetMemoryAttributes()

◆ EdkiiSmmSetMemoryAttributes()

◆ EnablePageTableProtection()

◆ FlushTlbForAll()

◆ FlushTlbOnCurrentProcessor()

◆ GenPageTable()

◆ GenSmmPageTable()

◆ GetAttributesFromPageEntry()

◆ GetPageTableEntry()

◆ IfReadOnlyPageTableNeeded()

◆ InitializePageTablePool()

◆ PatchGdtIdtMap()

◆ PatchSmmSaveStateMap()

◆ SetMemMapAttributes()

◆ SetMemMapWithNonPresentRange()

◆ SetPageTableAttributes()

◆ SetShadowStack()

◆ SmmClearMemoryAttributes()

◆ SmmClearMemoryAttributesEx()

◆ SmmGetSystemConfigurationTable()

◆ SmmSetMemoryAttributes()

◆ SmmSetMemoryAttributesEx()

◆ SmmWriteProtectReadOnlyPage()

◆ SmmWriteUnprotectReadOnlyPage()

Variable Documentation

◆ m5LevelPagingNeeded

◆ mIsReadOnlyPageTable

◆ mIsShadowStack

◆ mPageTablePool

◆ mPagingMode