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-rw-r--r--MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c4400
1 files changed, 2200 insertions, 2200 deletions
diff --git a/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c b/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c
index 5f8d20a7e9..71ec2e4ab0 100644
--- a/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c
+++ b/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c
@@ -1,2200 +1,2200 @@
-/** @file
- ACPI Table Protocol Implementation
-
- Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>
- Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-//
-// Includes
-//
-#include "AcpiTable.h"
-//
-// The maximum number of tables that pre-allocated.
-//
-UINTN mEfiAcpiMaxNumTables = EFI_ACPI_MAX_NUM_TABLES;
-
-//
-// Allocation strategy to use for AllocatePages ().
-// Runtime value depends on PcdExposedAcpiTableVersions.
-//
-STATIC EFI_ALLOCATE_TYPE mAcpiTableAllocType;
-
-/**
- This function adds an ACPI table to the table list. It will detect FACS and
- allocate the correct type of memory and properly align the table.
-
- @param AcpiTableInstance Instance of the protocol.
- @param Table Table to add.
- @param Checksum Does the table require checksumming.
- @param Version The version of the list to add the table to.
- @param IsFromHob True, if add Apci Table from Hob List.
- @param Handle Pointer for returning the handle.
-
- @return EFI_SUCCESS The function completed successfully.
- @return EFI_OUT_OF_RESOURCES Could not allocate a required resource.
- @return EFI_ABORTED The table is a duplicate of a table that is required
- to be unique.
-
-**/
-EFI_STATUS
-AddTableToList (
- IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
- IN VOID *Table,
- IN BOOLEAN Checksum,
- IN EFI_ACPI_TABLE_VERSION Version,
- IN BOOLEAN IsFromHob,
- OUT UINTN *Handle
- );
-
-/**
- This function finds and removes the table specified by the handle.
-
- @param AcpiTableInstance Instance of the protocol.
- @param Version Bitmask of which versions to remove.
- @param Handle Table to remove.
-
- @return EFI_SUCCESS The function completed successfully.
- @return EFI_ABORTED An error occurred.
- @return EFI_NOT_FOUND Handle not found in table list.
-
-**/
-EFI_STATUS
-RemoveTableFromList (
- IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
- IN EFI_ACPI_TABLE_VERSION Version,
- IN UINTN Handle
- );
-
-/**
- This function calculates and updates an UINT8 checksum.
-
- @param Buffer Pointer to buffer to checksum
- @param Size Number of bytes to checksum
- @param ChecksumOffset Offset to place the checksum result in
-
- @return EFI_SUCCESS The function completed successfully.
-**/
-EFI_STATUS
-AcpiPlatformChecksum (
- IN VOID *Buffer,
- IN UINTN Size,
- IN UINTN ChecksumOffset
- );
-
-/**
- Checksum all versions of the common tables, RSDP, RSDT, XSDT.
-
- @param AcpiTableInstance Protocol instance private data.
-
- @return EFI_SUCCESS The function completed successfully.
-
-**/
-EFI_STATUS
-ChecksumCommonTables (
- IN OUT EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
- );
-
-//
-// Protocol function implementations.
-//
-
-/**
- This function publishes the specified versions of the ACPI tables by
- installing EFI configuration table entries for them. Any combination of
- table versions can be published.
-
- @param AcpiTableInstance Instance of the protocol.
- @param Version Version(s) to publish.
-
- @return EFI_SUCCESS The function completed successfully.
- @return EFI_ABORTED The function could not complete successfully.
-
-**/
-EFI_STATUS
-EFIAPI
-PublishTables (
- IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
- IN EFI_ACPI_TABLE_VERSION Version
- )
-{
- EFI_STATUS Status;
- UINT32 *CurrentRsdtEntry;
- VOID *CurrentXsdtEntry;
- UINT64 Buffer64;
-
- //
- // Reorder tables as some operating systems don't seem to find the
- // FADT correctly if it is not in the first few entries
- //
-
- //
- // Add FADT as the first entry
- //
- if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- CurrentRsdtEntry = (UINT32 *)((UINT8 *)AcpiTableInstance->Rsdt1 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
- *CurrentRsdtEntry = (UINT32)(UINTN)AcpiTableInstance->Fadt1;
-
- CurrentRsdtEntry = (UINT32 *)((UINT8 *)AcpiTableInstance->Rsdt3 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
- *CurrentRsdtEntry = (UINT32)(UINTN)AcpiTableInstance->Fadt3;
- }
-
- if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
- CurrentXsdtEntry = (VOID *)((UINT8 *)AcpiTableInstance->Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
- //
- // Add entry to XSDT, XSDT expects 64 bit pointers, but
- // the table pointers in XSDT are not aligned on 8 byte boundary.
- //
- Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Fadt3;
- CopyMem (
- CurrentXsdtEntry,
- &Buffer64,
- sizeof (UINT64)
- );
- }
-
- //
- // Do checksum again because Dsdt/Xsdt is updated.
- //
- ChecksumCommonTables (AcpiTableInstance);
-
- //
- // Add the RSD_PTR to the system table and store that we have installed the
- // tables.
- //
- if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- Status = gBS->InstallConfigurationTable (&gEfiAcpi10TableGuid, AcpiTableInstance->Rsdp1);
- if (EFI_ERROR (Status)) {
- return EFI_ABORTED;
- }
- }
-
- if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
- Status = gBS->InstallConfigurationTable (&gEfiAcpiTableGuid, AcpiTableInstance->Rsdp3);
- if (EFI_ERROR (Status)) {
- return EFI_ABORTED;
- }
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Installs an ACPI table into the RSDT/XSDT.
- Note that the ACPI table should be checksumed before installing it.
- Otherwise it will assert.
-
- @param This Protocol instance pointer.
- @param AcpiTableBuffer A pointer to a buffer containing the ACPI table to be installed.
- @param AcpiTableBufferSize Specifies the size, in bytes, of the AcpiTableBuffer buffer.
- @param TableKey Reurns a key to refer to the ACPI table.
-
- @return EFI_SUCCESS The table was successfully inserted.
- @return EFI_INVALID_PARAMETER Either AcpiTableBuffer is NULL, TableKey is NULL, or AcpiTableBufferSize
- and the size field embedded in the ACPI table pointed to by AcpiTableBuffer
- are not in sync.
- @return EFI_OUT_OF_RESOURCES Insufficient resources exist to complete the request.
- @retval EFI_ACCESS_DENIED The table signature matches a table already
- present in the system and platform policy
- does not allow duplicate tables of this type.
-
-**/
-EFI_STATUS
-EFIAPI
-InstallAcpiTable (
- IN EFI_ACPI_TABLE_PROTOCOL *This,
- IN VOID *AcpiTableBuffer,
- IN UINTN AcpiTableBufferSize,
- OUT UINTN *TableKey
- )
-{
- EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance;
- EFI_STATUS Status;
- VOID *AcpiTableBufferConst;
- EFI_ACPI_TABLE_VERSION Version;
-
- //
- // Check for invalid input parameters
- //
- if ( (AcpiTableBuffer == NULL) || (TableKey == NULL)
- || (((EFI_ACPI_DESCRIPTION_HEADER *)AcpiTableBuffer)->Length != AcpiTableBufferSize))
- {
- return EFI_INVALID_PARAMETER;
- }
-
- Version = PcdGet32 (PcdAcpiExposedTableVersions);
-
- //
- // Get the instance of the ACPI table protocol
- //
- AcpiTableInstance = EFI_ACPI_TABLE_INSTANCE_FROM_THIS (This);
-
- //
- // Install the ACPI table
- //
- AcpiTableBufferConst = AllocateCopyPool (AcpiTableBufferSize, AcpiTableBuffer);
- *TableKey = 0;
- Status = AddTableToList (
- AcpiTableInstance,
- AcpiTableBufferConst,
- TRUE,
- Version,
- FALSE,
- TableKey
- );
- if (!EFI_ERROR (Status)) {
- Status = PublishTables (
- AcpiTableInstance,
- Version
- );
- }
-
- FreePool (AcpiTableBufferConst);
-
- //
- // Add a new table successfully, notify registed callback
- //
- if (FeaturePcdGet (PcdInstallAcpiSdtProtocol)) {
- if (!EFI_ERROR (Status)) {
- SdtNotifyAcpiList (
- AcpiTableInstance,
- Version,
- *TableKey
- );
- }
- }
-
- return Status;
-}
-
-/**
- Removes an ACPI table from the RSDT/XSDT.
-
- @param This Protocol instance pointer.
- @param TableKey Specifies the table to uninstall. The key was returned from InstallAcpiTable().
-
- @return EFI_SUCCESS The table was successfully uninstalled.
- @return EFI_NOT_FOUND TableKey does not refer to a valid key for a table entry.
-
-**/
-EFI_STATUS
-EFIAPI
-UninstallAcpiTable (
- IN EFI_ACPI_TABLE_PROTOCOL *This,
- IN UINTN TableKey
- )
-{
- EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance;
- EFI_STATUS Status;
- EFI_ACPI_TABLE_VERSION Version;
-
- //
- // Get the instance of the ACPI table protocol
- //
- AcpiTableInstance = EFI_ACPI_TABLE_INSTANCE_FROM_THIS (This);
-
- Version = PcdGet32 (PcdAcpiExposedTableVersions);
-
- //
- // Uninstall the ACPI table
- //
- Status = RemoveTableFromList (
- AcpiTableInstance,
- Version,
- TableKey
- );
- if (!EFI_ERROR (Status)) {
- Status = PublishTables (
- AcpiTableInstance,
- Version
- );
- }
-
- if (EFI_ERROR (Status)) {
- return EFI_NOT_FOUND;
- } else {
- return EFI_SUCCESS;
- }
-}
-
-/**
- If the number of APCI tables exceeds the preallocated max table number, enlarge the table buffer.
-
- @param AcpiTableInstance ACPI table protocol instance data structure.
-
- @return EFI_SUCCESS reallocate the table beffer successfully.
- @return EFI_OUT_OF_RESOURCES Unable to allocate required resources.
-
-**/
-EFI_STATUS
-ReallocateAcpiTableBuffer (
- IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
- )
-{
- UINTN NewMaxTableNumber;
- UINTN TotalSize;
- UINT8 *Pointer;
- EFI_PHYSICAL_ADDRESS PageAddress;
- EFI_ACPI_TABLE_INSTANCE TempPrivateData;
- EFI_STATUS Status;
- UINT64 CurrentData;
- EFI_MEMORY_TYPE AcpiAllocateMemoryType;
-
- CopyMem (&TempPrivateData, AcpiTableInstance, sizeof (EFI_ACPI_TABLE_INSTANCE));
- //
- // Enlarge the max table number from mEfiAcpiMaxNumTables to mEfiAcpiMaxNumTables + EFI_ACPI_MAX_NUM_TABLES
- //
- NewMaxTableNumber = mEfiAcpiMaxNumTables + EFI_ACPI_MAX_NUM_TABLES;
- //
- // Create RSDT, XSDT structures and allocate buffers.
- //
- TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
- NewMaxTableNumber * sizeof (UINT64);
-
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- TotalSize += sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
- NewMaxTableNumber * sizeof (UINT32) +
- sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
- NewMaxTableNumber * sizeof (UINT32);
- }
-
- if (PcdGetBool (PcdNoACPIReclaimMemory)) {
- AcpiAllocateMemoryType = EfiACPIMemoryNVS;
- } else {
- AcpiAllocateMemoryType = EfiACPIReclaimMemory;
- }
-
- if (mAcpiTableAllocType != AllocateAnyPages) {
- //
- // Allocate memory in the lower 32 bit of address range for
- // compatibility with ACPI 1.0 OS.
- //
- // This is done because ACPI 1.0 pointers are 32 bit values.
- // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
- // There is no architectural reason these should be below 4GB, it is purely
- // for convenience of implementation that we force memory below 4GB.
- //
- PageAddress = 0xFFFFFFFF;
- Status = gBS->AllocatePages (
- mAcpiTableAllocType,
- AcpiAllocateMemoryType,
- EFI_SIZE_TO_PAGES (TotalSize),
- &PageAddress
- );
- } else {
- Status = gBS->AllocatePool (
- AcpiAllocateMemoryType,
- TotalSize,
- (VOID **)&Pointer
- );
- }
-
- if (EFI_ERROR (Status)) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (mAcpiTableAllocType != AllocateAnyPages) {
- Pointer = (UINT8 *)(UINTN)PageAddress;
- }
-
- ZeroMem (Pointer, TotalSize);
-
- AcpiTableInstance->Rsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + NewMaxTableNumber * sizeof (UINT32));
- AcpiTableInstance->Rsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
- Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + NewMaxTableNumber * sizeof (UINT32));
- }
-
- AcpiTableInstance->Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
-
- //
- // Update RSDP to point to the new Rsdt and Xsdt address.
- //
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- AcpiTableInstance->Rsdp1->RsdtAddress = (UINT32)(UINTN)AcpiTableInstance->Rsdt1;
- AcpiTableInstance->Rsdp3->RsdtAddress = (UINT32)(UINTN)AcpiTableInstance->Rsdt3;
- }
-
- CurrentData = (UINT64)(UINTN)AcpiTableInstance->Xsdt;
- CopyMem (&AcpiTableInstance->Rsdp3->XsdtAddress, &CurrentData, sizeof (UINT64));
-
- //
- // copy the original Rsdt1, Rsdt3 and Xsdt structure to new buffer
- //
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- CopyMem (AcpiTableInstance->Rsdt1, TempPrivateData.Rsdt1, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT32)));
- CopyMem (AcpiTableInstance->Rsdt3, TempPrivateData.Rsdt3, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT32)));
- }
-
- CopyMem (AcpiTableInstance->Xsdt, TempPrivateData.Xsdt, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT64)));
-
- if (mAcpiTableAllocType != AllocateAnyPages) {
- //
- // Calculate orignal ACPI table buffer size
- //
- TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
- mEfiAcpiMaxNumTables * sizeof (UINT64);
-
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- TotalSize += sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
- mEfiAcpiMaxNumTables * sizeof (UINT32) +
- sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
- mEfiAcpiMaxNumTables * sizeof (UINT32);
- }
-
- gBS->FreePages (
- (EFI_PHYSICAL_ADDRESS)(UINTN)TempPrivateData.Rsdt1,
- EFI_SIZE_TO_PAGES (TotalSize)
- );
- } else {
- gBS->FreePool (TempPrivateData.Rsdt1);
- }
-
- //
- // Update the Max ACPI table number
- //
- mEfiAcpiMaxNumTables = NewMaxTableNumber;
- return EFI_SUCCESS;
-}
-
-/**
- Free the memory associated with the provided EFI_ACPI_TABLE_LIST instance.
-
- @param TableEntry EFI_ACPI_TABLE_LIST instance pointer
-
-**/
-STATIC
-VOID
-FreeTableMemory (
- EFI_ACPI_TABLE_LIST *TableEntry
- )
-{
- if (TableEntry->PoolAllocation) {
- gBS->FreePool (TableEntry->Table);
- } else {
- gBS->FreePages (
- (EFI_PHYSICAL_ADDRESS)(UINTN)TableEntry->Table,
- EFI_SIZE_TO_PAGES (TableEntry->TableSize)
- );
- }
-}
-
-/**
- This function adds an ACPI table to the table list. It will detect FACS and
- allocate the correct type of memory and properly align the table.
-
- @param AcpiTableInstance Instance of the protocol.
- @param Table Table to add.
- @param Checksum Does the table require checksumming.
- @param Version The version of the list to add the table to.
- @param IsFromHob True, if add Apci Table from Hob List.
- @param Handle Pointer for returning the handle.
-
- @return EFI_SUCCESS The function completed successfully.
- @return EFI_OUT_OF_RESOURCES Could not allocate a required resource.
- @retval EFI_ACCESS_DENIED The table signature matches a table already
- present in the system and platform policy
- does not allow duplicate tables of this type.
-
-**/
-EFI_STATUS
-AddTableToList (
- IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
- IN VOID *Table,
- IN BOOLEAN Checksum,
- IN EFI_ACPI_TABLE_VERSION Version,
- IN BOOLEAN IsFromHob,
- OUT UINTN *Handle
- )
-{
- EFI_STATUS Status;
- EFI_ACPI_TABLE_LIST *CurrentTableList;
- UINT32 CurrentTableSignature;
- UINT32 CurrentTableSize;
- UINT32 *CurrentRsdtEntry;
- VOID *CurrentXsdtEntry;
- EFI_PHYSICAL_ADDRESS AllocPhysAddress;
- UINT64 Buffer64;
- BOOLEAN AddToRsdt;
- EFI_MEMORY_TYPE AcpiAllocateMemoryType;
-
- //
- // Check for invalid input parameters
- //
- ASSERT (AcpiTableInstance);
- ASSERT (Table);
- ASSERT (Handle);
-
- //
- // Init locals
- //
- AddToRsdt = TRUE;
-
- //
- // Create a new list entry
- //
- CurrentTableList = AllocatePool (sizeof (EFI_ACPI_TABLE_LIST));
- ASSERT (CurrentTableList);
-
- //
- // Determine table type and size
- //
- CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *)Table)->Signature;
- CurrentTableSize = ((EFI_ACPI_COMMON_HEADER *)Table)->Length;
-
- //
- // Allocate a buffer for the table. All tables are allocated in the lower 32 bits of address space
- // for backwards compatibility with ACPI 1.0 OS.
- //
- // This is done because ACPI 1.0 pointers are 32 bit values.
- // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
- // There is no architectural reason these should be below 4GB, it is purely
- // for convenience of implementation that we force memory below 4GB.
- //
- AllocPhysAddress = 0xFFFFFFFF;
- CurrentTableList->TableSize = CurrentTableSize;
- CurrentTableList->PoolAllocation = FALSE;
-
- if (PcdGetBool (PcdNoACPIReclaimMemory)) {
- AcpiAllocateMemoryType = EfiACPIMemoryNVS;
- } else {
- AcpiAllocateMemoryType = EfiACPIReclaimMemory;
- }
-
- //
- // Allocation memory type depends on the type of the table
- //
- if ((CurrentTableSignature == EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
- (CurrentTableSignature == EFI_ACPI_4_0_UEFI_ACPI_DATA_TABLE_SIGNATURE))
- {
- //
- // Allocate memory for the FACS. This structure must be aligned
- // on a 64 byte boundary and must be ACPI NVS memory.
- // Using AllocatePages should ensure that it is always aligned.
- // Do not change signature for new ACPI version because they are same.
- //
- // UEFI table also need to be in ACPI NVS memory, because some data field
- // could be updated by OS present agent. For example, BufferPtrAddress in
- // SMM communication ACPI table.
- //
- ASSERT ((EFI_PAGE_SIZE % 64) == 0);
- if (IsFromHob) {
- AllocPhysAddress = (UINTN)Table;
- Status = EFI_SUCCESS;
- } else {
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiACPIMemoryNVS,
- EFI_SIZE_TO_PAGES (CurrentTableList->TableSize),
- &AllocPhysAddress
- );
- }
- } else if (mAcpiTableAllocType == AllocateAnyPages) {
- //
- // If there is no allocation limit, there is also no need to use page
- // based allocations for ACPI tables, which may be wasteful on platforms
- // such as AArch64 that allocate multiples of 64 KB
- //
- Status = gBS->AllocatePool (
- AcpiAllocateMemoryType,
- CurrentTableList->TableSize,
- (VOID **)&CurrentTableList->Table
- );
- CurrentTableList->PoolAllocation = TRUE;
- } else {
- //
- // All other tables are ACPI reclaim memory, no alignment requirements.
- //
- Status = gBS->AllocatePages (
- mAcpiTableAllocType,
- AcpiAllocateMemoryType,
- EFI_SIZE_TO_PAGES (CurrentTableList->TableSize),
- &AllocPhysAddress
- );
- CurrentTableList->Table = (EFI_ACPI_COMMON_HEADER *)(UINTN)AllocPhysAddress;
- }
-
- //
- // Check return value from memory alloc.
- //
- if (EFI_ERROR (Status)) {
- gBS->FreePool (CurrentTableList);
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (!CurrentTableList->PoolAllocation) {
- CurrentTableList->Table = (EFI_ACPI_COMMON_HEADER *)(UINTN)AllocPhysAddress;
- }
-
- //
- // Initialize the table contents
- //
- CurrentTableList->Signature = EFI_ACPI_TABLE_LIST_SIGNATURE;
- CopyMem (CurrentTableList->Table, Table, CurrentTableSize);
- CurrentTableList->Handle = AcpiTableInstance->CurrentHandle++;
- *Handle = CurrentTableList->Handle;
- CurrentTableList->Version = Version;
-
- //
- // Update internal pointers if this is a required table. If it is a required
- // table and a table of that type already exists, return an error.
- //
- // Calculate the checksum if the table is not FACS.
- //
- switch (CurrentTableSignature) {
- case EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:
- //
- // We don't add the FADT in the standard way because some
- // OS expect the FADT to be early in the table list.
- // So we always add it as the first element in the list.
- //
- AddToRsdt = FALSE;
-
- //
- // Check that the table has not been previously added.
- //
- if ((((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) && (AcpiTableInstance->Fadt1 != NULL)) ||
- (((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) && (AcpiTableInstance->Fadt3 != NULL))
- )
- {
- FreeTableMemory (CurrentTableList);
- gBS->FreePool (CurrentTableList);
- return EFI_ACCESS_DENIED;
- }
-
- //
- // Add the table to the appropriate table version
- //
- if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- //
- // Save a pointer to the table
- //
- AcpiTableInstance->Fadt1 = (EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *)CurrentTableList->Table;
-
- //
- // Update pointers in FADT. If tables don't exist this will put NULL pointers there.
- //
- AcpiTableInstance->Fadt1->FirmwareCtrl = (UINT32)(UINTN)AcpiTableInstance->Facs1;
- AcpiTableInstance->Fadt1->Dsdt = (UINT32)(UINTN)AcpiTableInstance->Dsdt1;
-
- //
- // RSDP OEM information is updated to match the FADT OEM information
- //
- CopyMem (
- &AcpiTableInstance->Rsdp1->OemId,
- &AcpiTableInstance->Fadt1->Header.OemId,
- 6
- );
-
- //
- // RSDT OEM information is updated to match the FADT OEM information.
- //
- CopyMem (
- &AcpiTableInstance->Rsdt1->OemId,
- &AcpiTableInstance->Fadt1->Header.OemId,
- 6
- );
-
- CopyMem (
- &AcpiTableInstance->Rsdt1->OemTableId,
- &AcpiTableInstance->Fadt1->Header.OemTableId,
- sizeof (UINT64)
- );
- AcpiTableInstance->Rsdt1->OemRevision = AcpiTableInstance->Fadt1->Header.OemRevision;
- }
-
- if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
- //
- // Save a pointer to the table
- //
- AcpiTableInstance->Fadt3 = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)CurrentTableList->Table;
-
- //
- // Update pointers in FADT. If tables don't exist this will put NULL pointers there.
- // Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
- // vice-versa.
- //
- if ((UINT64)(UINTN)AcpiTableInstance->Facs3 < BASE_4GB) {
- AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32)(UINTN)AcpiTableInstance->Facs3;
- ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
- } else {
- Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Facs3;
- CopyMem (
- &AcpiTableInstance->Fadt3->XFirmwareCtrl,
- &Buffer64,
- sizeof (UINT64)
- );
- AcpiTableInstance->Fadt3->FirmwareCtrl = 0;
- }
-
- if ((UINT64)(UINTN)AcpiTableInstance->Dsdt3 < BASE_4GB) {
- AcpiTableInstance->Fadt3->Dsdt = (UINT32)(UINTN)AcpiTableInstance->Dsdt3;
- //
- // Comment block "the caller installs the tables in "DSDT, FADT" order"
- // The below comments are also in "the caller installs the tables in "FADT, DSDT" order" comment block.
- //
- // The ACPI specification, up to and including revision 5.1 Errata A,
- // allows the DSDT and X_DSDT fields to be both set in the FADT.
- // (Obviously, this only makes sense if the DSDT address is representable in 4 bytes.)
- // Starting with 5.1 Errata B, specifically for Mantis 1393 <https://mantis.uefi.org/mantis/view.php?id=1393>,
- // the spec requires at most one of DSDT and X_DSDT fields to be set to a nonzero value,
- // but strangely an exception is 6.0 that has no this requirement.
- //
- // Here we do not make the DSDT and X_DSDT fields mutual exclusion conditionally
- // by checking FADT revision, but always set both DSDT and X_DSDT fields in the FADT
- // to have better compatibility as some OS may have assumption to only consume X_DSDT
- // field even the DSDT address is < 4G.
- //
- Buffer64 = AcpiTableInstance->Fadt3->Dsdt;
- } else {
- AcpiTableInstance->Fadt3->Dsdt = 0;
- Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Dsdt3;
- }
-
- CopyMem (&AcpiTableInstance->Fadt3->XDsdt, &Buffer64, sizeof (UINT64));
-
- //
- // RSDP OEM information is updated to match the FADT OEM information
- //
- CopyMem (
- &AcpiTableInstance->Rsdp3->OemId,
- &AcpiTableInstance->Fadt3->Header.OemId,
- 6
- );
-
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- //
- // RSDT OEM information is updated to match FADT OEM information.
- //
- CopyMem (
- &AcpiTableInstance->Rsdt3->OemId,
- &AcpiTableInstance->Fadt3->Header.OemId,
- 6
- );
- CopyMem (
- &AcpiTableInstance->Rsdt3->OemTableId,
- &AcpiTableInstance->Fadt3->Header.OemTableId,
- sizeof (UINT64)
- );
- AcpiTableInstance->Rsdt3->OemRevision = AcpiTableInstance->Fadt3->Header.OemRevision;
- }
-
- //
- // XSDT OEM information is updated to match FADT OEM information.
- //
- CopyMem (
- &AcpiTableInstance->Xsdt->OemId,
- &AcpiTableInstance->Fadt3->Header.OemId,
- 6
- );
- CopyMem (
- &AcpiTableInstance->Xsdt->OemTableId,
- &AcpiTableInstance->Fadt3->Header.OemTableId,
- sizeof (UINT64)
- );
- AcpiTableInstance->Xsdt->OemRevision = AcpiTableInstance->Fadt3->Header.OemRevision;
- }
-
- //
- // Checksum the table
- //
- if (Checksum) {
- AcpiPlatformChecksum (
- CurrentTableList->Table,
- CurrentTableList->Table->Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
-
- break;
-
- case EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:
- //
- // Check that the table has not been previously added.
- //
- if ((((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) && (AcpiTableInstance->Facs1 != NULL)) ||
- (((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) && (AcpiTableInstance->Facs3 != NULL))
- )
- {
- FreeTableMemory (CurrentTableList);
- gBS->FreePool (CurrentTableList);
- return EFI_ACCESS_DENIED;
- }
-
- //
- // FACS is referenced by FADT and is not part of RSDT
- //
- AddToRsdt = FALSE;
-
- //
- // Add the table to the appropriate table version
- //
- if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- //
- // Save a pointer to the table
- //
- AcpiTableInstance->Facs1 = (EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)CurrentTableList->Table;
-
- //
- // If FADT already exists, update table pointers.
- //
- if (AcpiTableInstance->Fadt1 != NULL) {
- AcpiTableInstance->Fadt1->FirmwareCtrl = (UINT32)(UINTN)AcpiTableInstance->Facs1;
-
- //
- // Checksum FADT table
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Fadt1,
- AcpiTableInstance->Fadt1->Header.Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
- }
-
- if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
- //
- // Save a pointer to the table
- //
- AcpiTableInstance->Facs3 = (EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)CurrentTableList->Table;
-
- //
- // If FADT already exists, update table pointers.
- //
- if (AcpiTableInstance->Fadt3 != NULL) {
- //
- // Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
- // vice-versa.
- //
- if ((UINT64)(UINTN)AcpiTableInstance->Facs3 < BASE_4GB) {
- AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32)(UINTN)AcpiTableInstance->Facs3;
- ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
- } else {
- Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Facs3;
- CopyMem (
- &AcpiTableInstance->Fadt3->XFirmwareCtrl,
- &Buffer64,
- sizeof (UINT64)
- );
- AcpiTableInstance->Fadt3->FirmwareCtrl = 0;
- }
-
- //
- // Checksum FADT table
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Fadt3,
- AcpiTableInstance->Fadt3->Header.Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
- }
-
- break;
-
- case EFI_ACPI_1_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:
- //
- // Check that the table has not been previously added.
- //
- if ((((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) && (AcpiTableInstance->Dsdt1 != NULL)) ||
- (((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) && (AcpiTableInstance->Dsdt3 != NULL))
- )
- {
- FreeTableMemory (CurrentTableList);
- gBS->FreePool (CurrentTableList);
- return EFI_ACCESS_DENIED;
- }
-
- //
- // DSDT is referenced by FADT and is not part of RSDT
- //
- AddToRsdt = FALSE;
-
- //
- // Add the table to the appropriate table version
- //
- if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- //
- // Save a pointer to the table
- //
- AcpiTableInstance->Dsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *)CurrentTableList->Table;
-
- //
- // If FADT already exists, update table pointers.
- //
- if (AcpiTableInstance->Fadt1 != NULL) {
- AcpiTableInstance->Fadt1->Dsdt = (UINT32)(UINTN)AcpiTableInstance->Dsdt1;
-
- //
- // Checksum FADT table
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Fadt1,
- AcpiTableInstance->Fadt1->Header.Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
- }
-
- if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
- //
- // Save a pointer to the table
- //
- AcpiTableInstance->Dsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *)CurrentTableList->Table;
-
- //
- // If FADT already exists, update table pointers.
- //
- if (AcpiTableInstance->Fadt3 != NULL) {
- if ((UINT64)(UINTN)AcpiTableInstance->Dsdt3 < BASE_4GB) {
- AcpiTableInstance->Fadt3->Dsdt = (UINT32)(UINTN)AcpiTableInstance->Dsdt3;
- //
- // Comment block "the caller installs the tables in "FADT, DSDT" order"
- // The below comments are also in "the caller installs the tables in "DSDT, FADT" order" comment block.
- //
- // The ACPI specification, up to and including revision 5.1 Errata A,
- // allows the DSDT and X_DSDT fields to be both set in the FADT.
- // (Obviously, this only makes sense if the DSDT address is representable in 4 bytes.)
- // Starting with 5.1 Errata B, specifically for Mantis 1393 <https://mantis.uefi.org/mantis/view.php?id=1393>,
- // the spec requires at most one of DSDT and X_DSDT fields to be set to a nonzero value,
- // but strangely an exception is 6.0 that has no this requirement.
- //
- // Here we do not make the DSDT and X_DSDT fields mutual exclusion conditionally
- // by checking FADT revision, but always set both DSDT and X_DSDT fields in the FADT
- // to have better compatibility as some OS may have assumption to only consume X_DSDT
- // field even the DSDT address is < 4G.
- //
- Buffer64 = AcpiTableInstance->Fadt3->Dsdt;
- } else {
- AcpiTableInstance->Fadt3->Dsdt = 0;
- Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Dsdt3;
- }
-
- CopyMem (&AcpiTableInstance->Fadt3->XDsdt, &Buffer64, sizeof (UINT64));
-
- //
- // Checksum FADT table
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Fadt3,
- AcpiTableInstance->Fadt3->Header.Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
- }
-
- //
- // Checksum the table
- //
- if (Checksum) {
- AcpiPlatformChecksum (
- CurrentTableList->Table,
- CurrentTableList->Table->Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
-
- break;
-
- default:
- //
- // Checksum the table
- //
- if (Checksum) {
- AcpiPlatformChecksum (
- CurrentTableList->Table,
- CurrentTableList->Table->Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
-
- break;
- }
-
- //
- // Add the table to the current list of tables
- //
- InsertTailList (&AcpiTableInstance->TableList, &CurrentTableList->Link);
-
- //
- // Add the table to RSDT and/or XSDT table entry lists.
- //
- //
- // Add to ACPI 1.0b table tree
- //
- if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- if (AddToRsdt) {
- //
- // If the table number exceed the gEfiAcpiMaxNumTables, enlarge the table buffer
- //
- if (AcpiTableInstance->NumberOfTableEntries1 >= mEfiAcpiMaxNumTables) {
- Status = ReallocateAcpiTableBuffer (AcpiTableInstance);
- ASSERT_EFI_ERROR (Status);
- }
-
- CurrentRsdtEntry = (UINT32 *)
- (
- (UINT8 *)AcpiTableInstance->Rsdt1 +
- sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
- AcpiTableInstance->NumberOfTableEntries1 *
- sizeof (UINT32)
- );
-
- //
- // Add entry to the RSDT unless its the FACS or DSDT
- //
- *CurrentRsdtEntry = (UINT32)(UINTN)CurrentTableList->Table;
-
- //
- // Update RSDT length
- //
- AcpiTableInstance->Rsdt1->Length = AcpiTableInstance->Rsdt1->Length + sizeof (UINT32);
-
- AcpiTableInstance->NumberOfTableEntries1++;
- }
- }
-
- //
- // Add to ACPI 2.0/3.0 table tree
- //
- if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
- if (AddToRsdt) {
- //
- // If the table number exceed the gEfiAcpiMaxNumTables, enlarge the table buffer
- //
- if (AcpiTableInstance->NumberOfTableEntries3 >= mEfiAcpiMaxNumTables) {
- Status = ReallocateAcpiTableBuffer (AcpiTableInstance);
- ASSERT_EFI_ERROR (Status);
- }
-
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- //
- // At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.
- // If it becomes necessary to maintain separate table lists, changes will be required.
- //
- CurrentRsdtEntry = (UINT32 *)
- (
- (UINT8 *)AcpiTableInstance->Rsdt3 +
- sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
- AcpiTableInstance->NumberOfTableEntries3 *
- sizeof (UINT32)
- );
-
- //
- // Add entry to the RSDT
- //
- *CurrentRsdtEntry = (UINT32)(UINTN)CurrentTableList->Table;
-
- //
- // Update RSDT length
- //
- AcpiTableInstance->Rsdt3->Length = AcpiTableInstance->Rsdt3->Length + sizeof (UINT32);
- }
-
- //
- // This pointer must not be directly dereferenced as the XSDT entries may not
- // be 64 bit aligned resulting in a possible fault. Use CopyMem to update.
- //
- CurrentXsdtEntry = (VOID *)
- (
- (UINT8 *)AcpiTableInstance->Xsdt +
- sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
- AcpiTableInstance->NumberOfTableEntries3 *
- sizeof (UINT64)
- );
-
- //
- // Add entry to XSDT, XSDT expects 64 bit pointers, but
- // the table pointers in XSDT are not aligned on 8 byte boundary.
- //
- Buffer64 = (UINT64)(UINTN)CurrentTableList->Table;
- CopyMem (
- CurrentXsdtEntry,
- &Buffer64,
- sizeof (UINT64)
- );
-
- //
- // Update length
- //
- AcpiTableInstance->Xsdt->Length = AcpiTableInstance->Xsdt->Length + sizeof (UINT64);
-
- AcpiTableInstance->NumberOfTableEntries3++;
- }
- }
-
- ChecksumCommonTables (AcpiTableInstance);
- return EFI_SUCCESS;
-}
-
-/**
- This function finds the table specified by the handle and returns a pointer to it.
- If the handle is not found, EFI_NOT_FOUND is returned and the contents of Table are
- undefined.
-
- @param Handle Table to find.
- @param TableList Table list to search
- @param Table Pointer to table found.
-
- @return EFI_SUCCESS The function completed successfully.
- @return EFI_NOT_FOUND No table found matching the handle specified.
-
-**/
-EFI_STATUS
-FindTableByHandle (
- IN UINTN Handle,
- IN LIST_ENTRY *TableList,
- OUT EFI_ACPI_TABLE_LIST **Table
- )
-{
- LIST_ENTRY *CurrentLink;
- EFI_ACPI_TABLE_LIST *CurrentTable;
-
- //
- // Check for invalid input parameters
- //
- ASSERT (Table);
-
- //
- // Find the table
- //
- CurrentLink = TableList->ForwardLink;
-
- while (CurrentLink != TableList) {
- CurrentTable = EFI_ACPI_TABLE_LIST_FROM_LINK (CurrentLink);
- if (CurrentTable->Handle == Handle) {
- //
- // Found handle, so return this table.
- //
- *Table = CurrentTable;
- return EFI_SUCCESS;
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- //
- // Table not found
- //
- return EFI_NOT_FOUND;
-}
-
-/**
- This function removes a basic table from the RSDT and/or XSDT.
- For Acpi 1.0 tables, pass in the Rsdt.
- For Acpi 2.0 tables, pass in both Rsdt and Xsdt.
-
- @param Table Pointer to table found.
- @param NumberOfTableEntries Current number of table entries in the RSDT/XSDT
- @param Rsdt Pointer to the RSDT to remove from
- @param Xsdt Pointer to the Xsdt to remove from
-
- @return EFI_SUCCESS The function completed successfully.
- @return EFI_INVALID_PARAMETER The table was not found in both Rsdt and Xsdt.
-
-**/
-EFI_STATUS
-RemoveTableFromRsdt (
- IN OUT EFI_ACPI_TABLE_LIST *Table,
- IN OUT UINTN *NumberOfTableEntries,
- IN OUT EFI_ACPI_DESCRIPTION_HEADER *Rsdt OPTIONAL,
- IN OUT EFI_ACPI_DESCRIPTION_HEADER *Xsdt OPTIONAL
- )
-{
- UINT32 *CurrentRsdtEntry;
- VOID *CurrentXsdtEntry;
- UINT64 CurrentTablePointer64;
- UINTN Index;
-
- //
- // Check for invalid input parameters
- //
- ASSERT (Table);
- ASSERT (NumberOfTableEntries);
- ASSERT (Rsdt || Xsdt);
-
- //
- // Find the table entry in the RSDT and XSDT
- //
- for (Index = 0; Index < *NumberOfTableEntries; Index++) {
- //
- // At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.
- // If it becomes necessary to maintain separate table lists, changes will be required.
- //
- if (Rsdt != NULL) {
- CurrentRsdtEntry = (UINT32 *)((UINT8 *)Rsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + Index * sizeof (UINT32));
- } else {
- CurrentRsdtEntry = NULL;
- }
-
- if (Xsdt != NULL) {
- //
- // This pointer must not be directly dereferenced as the XSDT entries may not
- // be 64 bit aligned resulting in a possible fault. Use CopyMem to update.
- //
- CurrentXsdtEntry = (VOID *)((UINT8 *)Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + Index * sizeof (UINT64));
-
- //
- // Read the entry value out of the XSDT
- //
- CopyMem (&CurrentTablePointer64, CurrentXsdtEntry, sizeof (UINT64));
- } else {
- //
- // Initialize to NULL
- //
- CurrentXsdtEntry = 0;
- CurrentTablePointer64 = 0;
- }
-
- //
- // Check if we have found the corresponding entry in both RSDT and XSDT
- //
- if (((Rsdt == NULL) || (*CurrentRsdtEntry == (UINT32)(UINTN)Table->Table)) &&
- ((Xsdt == NULL) || (CurrentTablePointer64 == (UINT64)(UINTN)Table->Table))
- )
- {
- //
- // Found entry, so copy all following entries and shrink table
- // We actually copy all + 1 to copy the initialized value of memory over
- // the last entry.
- //
- if (Rsdt != NULL) {
- CopyMem (CurrentRsdtEntry, CurrentRsdtEntry + 1, (*NumberOfTableEntries - Index) * sizeof (UINT32));
- Rsdt->Length = Rsdt->Length - sizeof (UINT32);
- }
-
- if (Xsdt != NULL) {
- CopyMem (CurrentXsdtEntry, ((UINT64 *)CurrentXsdtEntry) + 1, (*NumberOfTableEntries - Index) * sizeof (UINT64));
- Xsdt->Length = Xsdt->Length - sizeof (UINT64);
- }
-
- break;
- } else if (Index + 1 == *NumberOfTableEntries) {
- //
- // At the last entry, and table not found
- //
- return EFI_INVALID_PARAMETER;
- }
- }
-
- //
- // Checksum the tables
- //
- if (Rsdt != NULL) {
- AcpiPlatformChecksum (
- Rsdt,
- Rsdt->Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
-
- if (Xsdt != NULL) {
- AcpiPlatformChecksum (
- Xsdt,
- Xsdt->Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
-
- //
- // Decrement the number of tables
- //
- (*NumberOfTableEntries)--;
-
- return EFI_SUCCESS;
-}
-
-/**
- This function removes a table and frees any associated memory.
-
- @param AcpiTableInstance Instance of the protocol.
- @param Version Version(s) to delete.
- @param Table Pointer to table found.
-
- @return EFI_SUCCESS The function completed successfully.
-
-**/
-EFI_STATUS
-DeleteTable (
- IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
- IN EFI_ACPI_TABLE_VERSION Version,
- IN OUT EFI_ACPI_TABLE_LIST *Table
- )
-{
- UINT32 CurrentTableSignature;
- BOOLEAN RemoveFromRsdt;
-
- //
- // Check for invalid input parameters
- //
- ASSERT (AcpiTableInstance);
- ASSERT (Table);
-
- //
- // Init locals
- //
- RemoveFromRsdt = TRUE;
- //
- // Check for Table->Table
- //
- ASSERT (Table->Table != NULL);
- CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *)Table->Table)->Signature;
-
- //
- // Basic tasks to accomplish delete are:
- // Determine removal requirements (in RSDT/XSDT or not)
- // Remove entry from RSDT/XSDT
- // Remove any table references to the table
- // If no one is using the table
- // Free the table (removing pointers from private data and tables)
- // Remove from list
- // Free list structure
- //
- //
- // Determine if this table is in the RSDT or XSDT
- //
- if ((CurrentTableSignature == EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
- (CurrentTableSignature == EFI_ACPI_2_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) ||
- (CurrentTableSignature == EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE)
- )
- {
- RemoveFromRsdt = FALSE;
- }
-
- //
- // We don't remove the FADT in the standard way because some
- // OS expect the FADT to be early in the table list.
- // So we always put it as the first element in the list.
- //
- if (CurrentTableSignature == EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
- RemoveFromRsdt = FALSE;
- }
-
- //
- // Remove the table from RSDT and XSDT
- //
- if (Table->Table != NULL) {
- //
- // This is a basic table, remove it from any lists and the Rsdt and/or Xsdt
- //
- if (Version & EFI_ACPI_TABLE_VERSION_NONE & Table->Version) {
- //
- // Remove this version from the table
- //
- Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_NONE;
- }
-
- if (Version & EFI_ACPI_TABLE_VERSION_1_0B & Table->Version) {
- //
- // Remove this version from the table
- //
- Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_1_0B;
-
- //
- // Remove from Rsdt. We don't care about the return value because it is
- // acceptable for the table to not exist in Rsdt.
- // We didn't add some tables so we don't remove them.
- //
- if (RemoveFromRsdt) {
- RemoveTableFromRsdt (
- Table,
- &AcpiTableInstance->NumberOfTableEntries1,
- AcpiTableInstance->Rsdt1,
- NULL
- );
- }
- }
-
- if (Version & ACPI_TABLE_VERSION_GTE_2_0 & Table->Version) {
- //
- // Remove this version from the table
- //
- Table->Version = Table->Version &~(Version & ACPI_TABLE_VERSION_GTE_2_0);
-
- //
- // Remove from Rsdt and Xsdt. We don't care about the return value
- // because it is acceptable for the table to not exist in Rsdt/Xsdt.
- // We didn't add some tables so we don't remove them.
- //
- if (RemoveFromRsdt) {
- RemoveTableFromRsdt (
- Table,
- &AcpiTableInstance->NumberOfTableEntries3,
- AcpiTableInstance->Rsdt3,
- AcpiTableInstance->Xsdt
- );
- }
- }
-
- //
- // Free the table, clean up any dependent tables and our private data pointers.
- //
- switch (Table->Table->Signature) {
- case EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:
- if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- AcpiTableInstance->Fadt1 = NULL;
- }
-
- if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
- AcpiTableInstance->Fadt3 = NULL;
- }
-
- break;
-
- case EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:
- if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- AcpiTableInstance->Facs1 = NULL;
-
- //
- // Update FADT table pointers
- //
- if (AcpiTableInstance->Fadt1 != NULL) {
- AcpiTableInstance->Fadt1->FirmwareCtrl = 0;
-
- //
- // Checksum table
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Fadt1,
- AcpiTableInstance->Fadt1->Header.Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
- }
-
- if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
- AcpiTableInstance->Facs3 = NULL;
-
- //
- // Update FADT table pointers
- //
- if (AcpiTableInstance->Fadt3 != NULL) {
- AcpiTableInstance->Fadt3->FirmwareCtrl = 0;
- ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
-
- //
- // Checksum table
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Fadt3,
- AcpiTableInstance->Fadt3->Header.Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
- }
-
- break;
-
- case EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:
- if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- AcpiTableInstance->Dsdt1 = NULL;
-
- //
- // Update FADT table pointers
- //
- if (AcpiTableInstance->Fadt1 != NULL) {
- AcpiTableInstance->Fadt1->Dsdt = 0;
-
- //
- // Checksum table
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Fadt1,
- AcpiTableInstance->Fadt1->Header.Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
- }
-
- if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
- AcpiTableInstance->Dsdt3 = NULL;
-
- //
- // Update FADT table pointers
- //
- if (AcpiTableInstance->Fadt3 != NULL) {
- AcpiTableInstance->Fadt3->Dsdt = 0;
- ZeroMem (&AcpiTableInstance->Fadt3->XDsdt, sizeof (UINT64));
-
- //
- // Checksum table
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Fadt3,
- AcpiTableInstance->Fadt3->Header.Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
- }
-
- break;
-
- default:
- //
- // Do nothing
- //
- break;
- }
- }
-
- //
- // If no version is using this table anymore, remove and free list entry.
- //
- if (Table->Version == 0) {
- //
- // Free the Table
- //
- FreeTableMemory (Table);
- RemoveEntryList (&(Table->Link));
- gBS->FreePool (Table);
- }
-
- //
- // Done
- //
- return EFI_SUCCESS;
-}
-
-/**
- This function finds and removes the table specified by the handle.
-
- @param AcpiTableInstance Instance of the protocol.
- @param Version Bitmask of which versions to remove.
- @param Handle Table to remove.
-
- @return EFI_SUCCESS The function completed successfully.
- @return EFI_ABORTED An error occurred.
- @return EFI_NOT_FOUND Handle not found in table list.
-
-**/
-EFI_STATUS
-RemoveTableFromList (
- IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
- IN EFI_ACPI_TABLE_VERSION Version,
- IN UINTN Handle
- )
-{
- EFI_ACPI_TABLE_LIST *Table;
- EFI_STATUS Status;
-
- Table = (EFI_ACPI_TABLE_LIST *)NULL;
-
- //
- // Check for invalid input parameters
- //
- ASSERT (AcpiTableInstance);
-
- //
- // Find the table
- //
- Status = FindTableByHandle (
- Handle,
- &AcpiTableInstance->TableList,
- &Table
- );
- if (EFI_ERROR (Status)) {
- return EFI_NOT_FOUND;
- }
-
- //
- // Remove the table
- //
- Status = DeleteTable (AcpiTableInstance, Version, Table);
- if (EFI_ERROR (Status)) {
- return EFI_ABORTED;
- }
-
- //
- // Completed successfully
- //
- return EFI_SUCCESS;
-}
-
-/**
- This function calculates and updates an UINT8 checksum.
-
- @param Buffer Pointer to buffer to checksum
- @param Size Number of bytes to checksum
- @param ChecksumOffset Offset to place the checksum result in
-
- @return EFI_SUCCESS The function completed successfully.
-
-**/
-EFI_STATUS
-AcpiPlatformChecksum (
- IN VOID *Buffer,
- IN UINTN Size,
- IN UINTN ChecksumOffset
- )
-{
- UINT8 Sum;
- UINT8 *Ptr;
-
- Sum = 0;
- //
- // Initialize pointer
- //
- Ptr = Buffer;
-
- //
- // set checksum to 0 first
- //
- Ptr[ChecksumOffset] = 0;
-
- //
- // add all content of buffer
- //
- while ((Size--) != 0) {
- Sum = (UINT8)(Sum + (*Ptr++));
- }
-
- //
- // set checksum
- //
- Ptr = Buffer;
- Ptr[ChecksumOffset] = (UINT8)(0xff - Sum + 1);
-
- return EFI_SUCCESS;
-}
-
-/**
- Checksum all versions of the common tables, RSDP, RSDT, XSDT.
-
- @param AcpiTableInstance Protocol instance private data.
-
- @return EFI_SUCCESS The function completed successfully.
-
-**/
-EFI_STATUS
-ChecksumCommonTables (
- IN OUT EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
- )
-{
- //
- // RSDP ACPI 1.0 checksum for 1.0 table. This is only the first 20 bytes of the structure
- //
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- AcpiPlatformChecksum (
- AcpiTableInstance->Rsdp1,
- sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
- OFFSET_OF (
- EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
- Checksum
- )
- );
- }
-
- //
- // RSDP ACPI 1.0 checksum for 2.0/3.0 table. This is only the first 20 bytes of the structure
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Rsdp3,
- sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
- OFFSET_OF (
- EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
- Checksum
- )
- );
-
- //
- // RSDP ACPI 2.0/3.0 checksum, this is the entire table
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Rsdp3,
- sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
- OFFSET_OF (
- EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
- ExtendedChecksum
- )
- );
-
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- //
- // RSDT checksums
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Rsdt1,
- AcpiTableInstance->Rsdt1->Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
-
- AcpiPlatformChecksum (
- AcpiTableInstance->Rsdt3,
- AcpiTableInstance->Rsdt3->Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
- }
-
- //
- // XSDT checksum
- //
- AcpiPlatformChecksum (
- AcpiTableInstance->Xsdt,
- AcpiTableInstance->Xsdt->Length,
- OFFSET_OF (
- EFI_ACPI_DESCRIPTION_HEADER,
- Checksum
- )
- );
-
- return EFI_SUCCESS;
-}
-
-/**
- This function will find gUniversalPayloadAcpiTableGuid Guid Hob, and install Acpi table from it.
-
- @param AcpiTableInstance Protocol instance private data.
-
- @return EFI_SUCCESS The function completed successfully.
- @return EFI_NOT_FOUND The function doesn't find the gEfiAcpiTableGuid Guid Hob.
- @return EFI_ABORTED The function could not complete successfully.
-
-**/
-EFI_STATUS
-InstallAcpiTableFromHob (
- EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
- )
-{
- EFI_HOB_GUID_TYPE *GuidHob;
- EFI_ACPI_TABLE_VERSION Version;
- EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp;
- EFI_ACPI_DESCRIPTION_HEADER *Rsdt;
- EFI_ACPI_DESCRIPTION_HEADER *ChildTable;
- UINT64 ChildTableAddress;
- UINTN Count;
- UINTN Index;
- UINTN TableKey;
- EFI_STATUS Status;
- UINTN EntrySize;
- UNIVERSAL_PAYLOAD_ACPI_TABLE *AcpiTableAdress;
- VOID *TableToInstall;
- EFI_ACPI_SDT_HEADER *Table;
- UNIVERSAL_PAYLOAD_GENERIC_HEADER *GenericHeader;
-
- TableKey = 0;
- Version = PcdGet32 (PcdAcpiExposedTableVersions);
- Status = EFI_SUCCESS;
- //
- // HOB only contains the ACPI table in 2.0+ format.
- //
- GuidHob = GetFirstGuidHob (&gUniversalPayloadAcpiTableGuid);
- if (GuidHob == NULL) {
- return EFI_NOT_FOUND;
- }
-
- GenericHeader = (UNIVERSAL_PAYLOAD_GENERIC_HEADER *)GET_GUID_HOB_DATA (GuidHob);
- if ((sizeof (UNIVERSAL_PAYLOAD_GENERIC_HEADER) > GET_GUID_HOB_DATA_SIZE (GuidHob)) || (GenericHeader->Length > GET_GUID_HOB_DATA_SIZE (GuidHob))) {
- return EFI_NOT_FOUND;
- }
-
- if (GenericHeader->Revision == UNIVERSAL_PAYLOAD_ACPI_TABLE_REVISION) {
- //
- // UNIVERSAL_PAYLOAD_ACPI_TABLE structure is used when Revision equals to UNIVERSAL_PAYLOAD_ACPI_TABLE_REVISION
- //
- AcpiTableAdress = (UNIVERSAL_PAYLOAD_ACPI_TABLE *)GET_GUID_HOB_DATA (GuidHob);
- if (AcpiTableAdress->Header.Length < UNIVERSAL_PAYLOAD_SIZEOF_THROUGH_FIELD (UNIVERSAL_PAYLOAD_ACPI_TABLE, Rsdp)) {
- //
- // Retrun if can't find the ACPI Info Hob with enough length
- //
- return EFI_NOT_FOUND;
- }
-
- Rsdp = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)(UINTN)(AcpiTableAdress->Rsdp);
-
- //
- // An ACPI-compatible OS must use the XSDT if present.
- // It shouldn't happen that XsdtAddress points beyond 4G range in 32-bit environment.
- //
- ASSERT ((UINTN)Rsdp->XsdtAddress == Rsdp->XsdtAddress);
-
- EntrySize = sizeof (UINT64);
- Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Rsdp->XsdtAddress;
- if (Rsdt == NULL) {
- //
- // XsdtAddress is zero, then we use Rsdt which has 32 bit entry
- //
- Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Rsdp->RsdtAddress;
- EntrySize = sizeof (UINT32);
- }
-
- if (Rsdt->Length <= sizeof (EFI_ACPI_DESCRIPTION_HEADER)) {
- return EFI_ABORTED;
- }
-
- Count = (Rsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) / EntrySize;
-
- for (Index = 0; Index < Count; Index++) {
- ChildTableAddress = 0;
- CopyMem (&ChildTableAddress, (UINT8 *)(Rsdt + 1) + EntrySize * Index, EntrySize);
- //
- // If the address is of UINT64 while this module runs at 32 bits,
- // make sure the upper bits are all-zeros.
- //
- ASSERT (ChildTableAddress == (UINTN)ChildTableAddress);
- if (ChildTableAddress != (UINTN)ChildTableAddress) {
- Status = EFI_ABORTED;
- break;
- }
-
- ChildTable = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)ChildTableAddress;
- Status = AddTableToList (AcpiTableInstance, ChildTable, TRUE, Version, TRUE, &TableKey);
- if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "InstallAcpiTableFromHob: Fail to add ACPI table at 0x%p\n", ChildTable));
- ASSERT_EFI_ERROR (Status);
- break;
- }
-
- if (ChildTable->Signature == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
- //
- // Add the FACS and DSDT tables if it is not NULL.
- //
- if (((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->FirmwareCtrl != 0) {
- TableToInstall = (VOID *)(UINTN)((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->FirmwareCtrl;
- Status = AddTableToList (AcpiTableInstance, TableToInstall, TRUE, Version, TRUE, &TableKey);
- if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "InstallAcpiTableFromHob: Fail to add ACPI table FACS\n"));
- ASSERT_EFI_ERROR (Status);
- break;
- }
- }
-
- //
- // First check if xDSDT is available, as that is preferred as per
- // ACPI Spec 6.5+ Table 5-9 X_DSDT definition
- //
- if (((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->XDsdt != 0) {
- TableToInstall = (VOID *)(UINTN)((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->XDsdt;
- } else if (((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->Dsdt != 0) {
- TableToInstall = (VOID *)(UINTN)((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->Dsdt;
- } else {
- DEBUG ((DEBUG_ERROR, "DSDT table not found\n"));
- continue;
- }
-
- Status = AddTableToList (AcpiTableInstance, TableToInstall, TRUE, Version, TRUE, &TableKey);
- if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "InstallAcpiTableFromHob: Fail to add ACPI table DSDT\n"));
- ASSERT_EFI_ERROR (Status);
- break;
- }
- }
- }
- } else {
- return EFI_NOT_FOUND;
- }
-
- if (EFI_ERROR (Status)) {
- //
- // Error happens when trying to add ACPI table to the list.
- // Remove all of them from list because at this time, no other tables except from HOB are in the list
- //
- while (SdtGetAcpiTable (AcpiTableInstance, 0, &Table, &Version, &TableKey) == EFI_SUCCESS) {
- RemoveTableFromList (AcpiTableInstance, Version, TableKey);
- }
- } else {
- Status = PublishTables (AcpiTableInstance, Version);
- }
-
- ASSERT_EFI_ERROR (Status);
- return Status;
-}
-
-/**
- Constructor for the ACPI table protocol. Initializes instance
- data.
-
- @param AcpiTableInstance Instance to construct
-
- @return EFI_SUCCESS Instance initialized.
- @return EFI_OUT_OF_RESOURCES Unable to allocate required resources.
-
-**/
-EFI_STATUS
-AcpiTableAcpiTableConstructor (
- EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
- )
-{
- EFI_STATUS Status;
- UINT64 CurrentData;
- UINTN TotalSize;
- UINTN RsdpTableSize;
- UINT8 *Pointer;
- EFI_PHYSICAL_ADDRESS PageAddress;
- EFI_MEMORY_TYPE AcpiAllocateMemoryType;
-
- //
- // Check for invalid input parameters
- //
- ASSERT (AcpiTableInstance);
-
- //
- // If ACPI v1.0b is among the ACPI versions we aim to support, we have to
- // ensure that all memory allocations are below 4 GB.
- //
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- mAcpiTableAllocType = AllocateMaxAddress;
- } else {
- mAcpiTableAllocType = AllocateAnyPages;
- }
-
- InitializeListHead (&AcpiTableInstance->TableList);
- AcpiTableInstance->CurrentHandle = 1;
-
- AcpiTableInstance->AcpiTableProtocol.InstallAcpiTable = InstallAcpiTable;
- AcpiTableInstance->AcpiTableProtocol.UninstallAcpiTable = UninstallAcpiTable;
-
- if (FeaturePcdGet (PcdInstallAcpiSdtProtocol)) {
- SdtAcpiTableAcpiSdtConstructor (AcpiTableInstance);
- }
-
- //
- // Create RSDP table
- //
- RsdpTableSize = sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- RsdpTableSize += sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
- }
-
- if (PcdGetBool (PcdNoACPIReclaimMemory)) {
- AcpiAllocateMemoryType = EfiACPIMemoryNVS;
- } else {
- AcpiAllocateMemoryType = EfiACPIReclaimMemory;
- }
-
- if (mAcpiTableAllocType != AllocateAnyPages) {
- PageAddress = 0xFFFFFFFF;
- Status = gBS->AllocatePages (
- mAcpiTableAllocType,
- AcpiAllocateMemoryType,
- EFI_SIZE_TO_PAGES (RsdpTableSize),
- &PageAddress
- );
- } else {
- Status = gBS->AllocatePool (
- AcpiAllocateMemoryType,
- RsdpTableSize,
- (VOID **)&Pointer
- );
- }
-
- if (EFI_ERROR (Status)) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (mAcpiTableAllocType != AllocateAnyPages) {
- Pointer = (UINT8 *)(UINTN)PageAddress;
- }
-
- ZeroMem (Pointer, RsdpTableSize);
-
- AcpiTableInstance->Rsdp1 = (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)Pointer;
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- Pointer += sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
- }
-
- AcpiTableInstance->Rsdp3 = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)Pointer;
-
- //
- // Create RSDT, XSDT structures
- //
- TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
- mEfiAcpiMaxNumTables * sizeof (UINT64);
-
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- TotalSize += sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
- mEfiAcpiMaxNumTables * sizeof (UINT32) +
- sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
- mEfiAcpiMaxNumTables * sizeof (UINT32);
- }
-
- if (mAcpiTableAllocType != AllocateAnyPages) {
- //
- // Allocate memory in the lower 32 bit of address range for
- // compatibility with ACPI 1.0 OS.
- //
- // This is done because ACPI 1.0 pointers are 32 bit values.
- // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
- // There is no architectural reason these should be below 4GB, it is purely
- // for convenience of implementation that we force memory below 4GB.
- //
- PageAddress = 0xFFFFFFFF;
- Status = gBS->AllocatePages (
- mAcpiTableAllocType,
- AcpiAllocateMemoryType,
- EFI_SIZE_TO_PAGES (TotalSize),
- &PageAddress
- );
- } else {
- Status = gBS->AllocatePool (
- AcpiAllocateMemoryType,
- TotalSize,
- (VOID **)&Pointer
- );
- }
-
- if (EFI_ERROR (Status)) {
- if (mAcpiTableAllocType != AllocateAnyPages) {
- gBS->FreePages (
- (EFI_PHYSICAL_ADDRESS)(UINTN)AcpiTableInstance->Rsdp1,
- EFI_SIZE_TO_PAGES (RsdpTableSize)
- );
- } else {
- gBS->FreePool (AcpiTableInstance->Rsdp1);
- }
-
- return EFI_OUT_OF_RESOURCES;
- }
-
- if (mAcpiTableAllocType != AllocateAnyPages) {
- Pointer = (UINT8 *)(UINTN)PageAddress;
- }
-
- ZeroMem (Pointer, TotalSize);
-
- AcpiTableInstance->Rsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));
- AcpiTableInstance->Rsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
- Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));
- }
-
- AcpiTableInstance->Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
-
- //
- // Initialize RSDP
- //
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- CurrentData = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;
- CopyMem (&AcpiTableInstance->Rsdp1->Signature, &CurrentData, sizeof (UINT64));
- CopyMem (AcpiTableInstance->Rsdp1->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdp1->OemId));
- AcpiTableInstance->Rsdp1->Reserved = EFI_ACPI_RESERVED_BYTE;
- AcpiTableInstance->Rsdp1->RsdtAddress = (UINT32)(UINTN)AcpiTableInstance->Rsdt1;
- }
-
- CurrentData = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;
- CopyMem (&AcpiTableInstance->Rsdp3->Signature, &CurrentData, sizeof (UINT64));
- CopyMem (AcpiTableInstance->Rsdp3->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdp3->OemId));
- AcpiTableInstance->Rsdp3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_REVISION;
- AcpiTableInstance->Rsdp3->Length = sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- AcpiTableInstance->Rsdp3->RsdtAddress = (UINT32)(UINTN)AcpiTableInstance->Rsdt3;
- }
-
- CurrentData = (UINT64)(UINTN)AcpiTableInstance->Xsdt;
- CopyMem (&AcpiTableInstance->Rsdp3->XsdtAddress, &CurrentData, sizeof (UINT64));
- SetMem (AcpiTableInstance->Rsdp3->Reserved, 3, EFI_ACPI_RESERVED_BYTE);
-
- if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
- //
- // Initialize Rsdt
- //
- // Note that we "reserve" one entry for the FADT so it can always be
- // at the beginning of the list of tables. Some OS don't seem
- // to find it correctly if it is too far down the list.
- //
- AcpiTableInstance->Rsdt1->Signature = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
- AcpiTableInstance->Rsdt1->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
- AcpiTableInstance->Rsdt1->Revision = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;
- CopyMem (AcpiTableInstance->Rsdt1->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdt1->OemId));
- CurrentData = PcdGet64 (PcdAcpiDefaultOemTableId);
- CopyMem (&AcpiTableInstance->Rsdt1->OemTableId, &CurrentData, sizeof (UINT64));
- AcpiTableInstance->Rsdt1->OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
- AcpiTableInstance->Rsdt1->CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
- AcpiTableInstance->Rsdt1->CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
- //
- // We always reserve first one for FADT
- //
- AcpiTableInstance->NumberOfTableEntries1 = 1;
- AcpiTableInstance->Rsdt1->Length = AcpiTableInstance->Rsdt1->Length + sizeof (UINT32);
-
- AcpiTableInstance->Rsdt3->Signature = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
- AcpiTableInstance->Rsdt3->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
- AcpiTableInstance->Rsdt3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;
- CopyMem (AcpiTableInstance->Rsdt3->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdt3->OemId));
- CurrentData = PcdGet64 (PcdAcpiDefaultOemTableId);
- CopyMem (&AcpiTableInstance->Rsdt3->OemTableId, &CurrentData, sizeof (UINT64));
- AcpiTableInstance->Rsdt3->OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
- AcpiTableInstance->Rsdt3->CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
- AcpiTableInstance->Rsdt3->CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
- //
- // We always reserve first one for FADT
- //
- AcpiTableInstance->Rsdt3->Length = AcpiTableInstance->Rsdt3->Length + sizeof (UINT32);
- }
-
- AcpiTableInstance->NumberOfTableEntries3 = 1;
-
- //
- // Initialize Xsdt
- //
- AcpiTableInstance->Xsdt->Signature = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
- AcpiTableInstance->Xsdt->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
- AcpiTableInstance->Xsdt->Revision = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_REVISION;
- CopyMem (AcpiTableInstance->Xsdt->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Xsdt->OemId));
- CurrentData = PcdGet64 (PcdAcpiDefaultOemTableId);
- CopyMem (&AcpiTableInstance->Xsdt->OemTableId, &CurrentData, sizeof (UINT64));
- AcpiTableInstance->Xsdt->OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
- AcpiTableInstance->Xsdt->CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
- AcpiTableInstance->Xsdt->CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
- //
- // We always reserve first one for FADT
- //
- AcpiTableInstance->Xsdt->Length = AcpiTableInstance->Xsdt->Length + sizeof (UINT64);
-
- ChecksumCommonTables (AcpiTableInstance);
-
- InstallAcpiTableFromHob (AcpiTableInstance);
-
- //
- // Completed successfully
- //
- return EFI_SUCCESS;
-}
+/** @file
+ ACPI Table Protocol Implementation
+
+ Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+//
+// Includes
+//
+#include "AcpiTable.h"
+//
+// The maximum number of tables that pre-allocated.
+//
+UINTN mEfiAcpiMaxNumTables = EFI_ACPI_MAX_NUM_TABLES;
+
+//
+// Allocation strategy to use for AllocatePages ().
+// Runtime value depends on PcdExposedAcpiTableVersions.
+//
+STATIC EFI_ALLOCATE_TYPE mAcpiTableAllocType;
+
+/**
+ This function adds an ACPI table to the table list. It will detect FACS and
+ allocate the correct type of memory and properly align the table.
+
+ @param AcpiTableInstance Instance of the protocol.
+ @param Table Table to add.
+ @param Checksum Does the table require checksumming.
+ @param Version The version of the list to add the table to.
+ @param IsFromHob True, if add Apci Table from Hob List.
+ @param Handle Pointer for returning the handle.
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_OUT_OF_RESOURCES Could not allocate a required resource.
+ @return EFI_ABORTED The table is a duplicate of a table that is required
+ to be unique.
+
+**/
+EFI_STATUS
+AddTableToList (
+ IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
+ IN VOID *Table,
+ IN BOOLEAN Checksum,
+ IN EFI_ACPI_TABLE_VERSION Version,
+ IN BOOLEAN IsFromHob,
+ OUT UINTN *Handle
+ );
+
+/**
+ This function finds and removes the table specified by the handle.
+
+ @param AcpiTableInstance Instance of the protocol.
+ @param Version Bitmask of which versions to remove.
+ @param Handle Table to remove.
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_ABORTED An error occurred.
+ @return EFI_NOT_FOUND Handle not found in table list.
+
+**/
+EFI_STATUS
+RemoveTableFromList (
+ IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
+ IN EFI_ACPI_TABLE_VERSION Version,
+ IN UINTN Handle
+ );
+
+/**
+ This function calculates and updates an UINT8 checksum.
+
+ @param Buffer Pointer to buffer to checksum
+ @param Size Number of bytes to checksum
+ @param ChecksumOffset Offset to place the checksum result in
+
+ @return EFI_SUCCESS The function completed successfully.
+**/
+EFI_STATUS
+AcpiPlatformChecksum (
+ IN VOID *Buffer,
+ IN UINTN Size,
+ IN UINTN ChecksumOffset
+ );
+
+/**
+ Checksum all versions of the common tables, RSDP, RSDT, XSDT.
+
+ @param AcpiTableInstance Protocol instance private data.
+
+ @return EFI_SUCCESS The function completed successfully.
+
+**/
+EFI_STATUS
+ChecksumCommonTables (
+ IN OUT EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
+ );
+
+//
+// Protocol function implementations.
+//
+
+/**
+ This function publishes the specified versions of the ACPI tables by
+ installing EFI configuration table entries for them. Any combination of
+ table versions can be published.
+
+ @param AcpiTableInstance Instance of the protocol.
+ @param Version Version(s) to publish.
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_ABORTED The function could not complete successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+PublishTables (
+ IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
+ IN EFI_ACPI_TABLE_VERSION Version
+ )
+{
+ EFI_STATUS Status;
+ UINT32 *CurrentRsdtEntry;
+ VOID *CurrentXsdtEntry;
+ UINT64 Buffer64;
+
+ //
+ // Reorder tables as some operating systems don't seem to find the
+ // FADT correctly if it is not in the first few entries
+ //
+
+ //
+ // Add FADT as the first entry
+ //
+ if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ CurrentRsdtEntry = (UINT32 *)((UINT8 *)AcpiTableInstance->Rsdt1 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
+ *CurrentRsdtEntry = (UINT32)(UINTN)AcpiTableInstance->Fadt1;
+
+ CurrentRsdtEntry = (UINT32 *)((UINT8 *)AcpiTableInstance->Rsdt3 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
+ *CurrentRsdtEntry = (UINT32)(UINTN)AcpiTableInstance->Fadt3;
+ }
+
+ if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
+ CurrentXsdtEntry = (VOID *)((UINT8 *)AcpiTableInstance->Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
+ //
+ // Add entry to XSDT, XSDT expects 64 bit pointers, but
+ // the table pointers in XSDT are not aligned on 8 byte boundary.
+ //
+ Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Fadt3;
+ CopyMem (
+ CurrentXsdtEntry,
+ &Buffer64,
+ sizeof (UINT64)
+ );
+ }
+
+ //
+ // Do checksum again because Dsdt/Xsdt is updated.
+ //
+ ChecksumCommonTables (AcpiTableInstance);
+
+ //
+ // Add the RSD_PTR to the system table and store that we have installed the
+ // tables.
+ //
+ if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ Status = gBS->InstallConfigurationTable (&gEfiAcpi10TableGuid, AcpiTableInstance->Rsdp1);
+ if (EFI_ERROR (Status)) {
+ return EFI_ABORTED;
+ }
+ }
+
+ if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
+ Status = gBS->InstallConfigurationTable (&gEfiAcpiTableGuid, AcpiTableInstance->Rsdp3);
+ if (EFI_ERROR (Status)) {
+ return EFI_ABORTED;
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Installs an ACPI table into the RSDT/XSDT.
+ Note that the ACPI table should be checksumed before installing it.
+ Otherwise it will assert.
+
+ @param This Protocol instance pointer.
+ @param AcpiTableBuffer A pointer to a buffer containing the ACPI table to be installed.
+ @param AcpiTableBufferSize Specifies the size, in bytes, of the AcpiTableBuffer buffer.
+ @param TableKey Reurns a key to refer to the ACPI table.
+
+ @return EFI_SUCCESS The table was successfully inserted.
+ @return EFI_INVALID_PARAMETER Either AcpiTableBuffer is NULL, TableKey is NULL, or AcpiTableBufferSize
+ and the size field embedded in the ACPI table pointed to by AcpiTableBuffer
+ are not in sync.
+ @return EFI_OUT_OF_RESOURCES Insufficient resources exist to complete the request.
+ @retval EFI_ACCESS_DENIED The table signature matches a table already
+ present in the system and platform policy
+ does not allow duplicate tables of this type.
+
+**/
+EFI_STATUS
+EFIAPI
+InstallAcpiTable (
+ IN EFI_ACPI_TABLE_PROTOCOL *This,
+ IN VOID *AcpiTableBuffer,
+ IN UINTN AcpiTableBufferSize,
+ OUT UINTN *TableKey
+ )
+{
+ EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance;
+ EFI_STATUS Status;
+ VOID *AcpiTableBufferConst;
+ EFI_ACPI_TABLE_VERSION Version;
+
+ //
+ // Check for invalid input parameters
+ //
+ if ( (AcpiTableBuffer == NULL) || (TableKey == NULL)
+ || (((EFI_ACPI_DESCRIPTION_HEADER *)AcpiTableBuffer)->Length != AcpiTableBufferSize))
+ {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Version = PcdGet32 (PcdAcpiExposedTableVersions);
+
+ //
+ // Get the instance of the ACPI table protocol
+ //
+ AcpiTableInstance = EFI_ACPI_TABLE_INSTANCE_FROM_THIS (This);
+
+ //
+ // Install the ACPI table
+ //
+ AcpiTableBufferConst = AllocateCopyPool (AcpiTableBufferSize, AcpiTableBuffer);
+ *TableKey = 0;
+ Status = AddTableToList (
+ AcpiTableInstance,
+ AcpiTableBufferConst,
+ TRUE,
+ Version,
+ FALSE,
+ TableKey
+ );
+ if (!EFI_ERROR (Status)) {
+ Status = PublishTables (
+ AcpiTableInstance,
+ Version
+ );
+ }
+
+ FreePool (AcpiTableBufferConst);
+
+ //
+ // Add a new table successfully, notify registed callback
+ //
+ if (FeaturePcdGet (PcdInstallAcpiSdtProtocol)) {
+ if (!EFI_ERROR (Status)) {
+ SdtNotifyAcpiList (
+ AcpiTableInstance,
+ Version,
+ *TableKey
+ );
+ }
+ }
+
+ return Status;
+}
+
+/**
+ Removes an ACPI table from the RSDT/XSDT.
+
+ @param This Protocol instance pointer.
+ @param TableKey Specifies the table to uninstall. The key was returned from InstallAcpiTable().
+
+ @return EFI_SUCCESS The table was successfully uninstalled.
+ @return EFI_NOT_FOUND TableKey does not refer to a valid key for a table entry.
+
+**/
+EFI_STATUS
+EFIAPI
+UninstallAcpiTable (
+ IN EFI_ACPI_TABLE_PROTOCOL *This,
+ IN UINTN TableKey
+ )
+{
+ EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance;
+ EFI_STATUS Status;
+ EFI_ACPI_TABLE_VERSION Version;
+
+ //
+ // Get the instance of the ACPI table protocol
+ //
+ AcpiTableInstance = EFI_ACPI_TABLE_INSTANCE_FROM_THIS (This);
+
+ Version = PcdGet32 (PcdAcpiExposedTableVersions);
+
+ //
+ // Uninstall the ACPI table
+ //
+ Status = RemoveTableFromList (
+ AcpiTableInstance,
+ Version,
+ TableKey
+ );
+ if (!EFI_ERROR (Status)) {
+ Status = PublishTables (
+ AcpiTableInstance,
+ Version
+ );
+ }
+
+ if (EFI_ERROR (Status)) {
+ return EFI_NOT_FOUND;
+ } else {
+ return EFI_SUCCESS;
+ }
+}
+
+/**
+ If the number of APCI tables exceeds the preallocated max table number, enlarge the table buffer.
+
+ @param AcpiTableInstance ACPI table protocol instance data structure.
+
+ @return EFI_SUCCESS reallocate the table beffer successfully.
+ @return EFI_OUT_OF_RESOURCES Unable to allocate required resources.
+
+**/
+EFI_STATUS
+ReallocateAcpiTableBuffer (
+ IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
+ )
+{
+ UINTN NewMaxTableNumber;
+ UINTN TotalSize;
+ UINT8 *Pointer;
+ EFI_PHYSICAL_ADDRESS PageAddress;
+ EFI_ACPI_TABLE_INSTANCE TempPrivateData;
+ EFI_STATUS Status;
+ UINT64 CurrentData;
+ EFI_MEMORY_TYPE AcpiAllocateMemoryType;
+
+ CopyMem (&TempPrivateData, AcpiTableInstance, sizeof (EFI_ACPI_TABLE_INSTANCE));
+ //
+ // Enlarge the max table number from mEfiAcpiMaxNumTables to mEfiAcpiMaxNumTables + EFI_ACPI_MAX_NUM_TABLES
+ //
+ NewMaxTableNumber = mEfiAcpiMaxNumTables + EFI_ACPI_MAX_NUM_TABLES;
+ //
+ // Create RSDT, XSDT structures and allocate buffers.
+ //
+ TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
+ NewMaxTableNumber * sizeof (UINT64);
+
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ TotalSize += sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
+ NewMaxTableNumber * sizeof (UINT32) +
+ sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
+ NewMaxTableNumber * sizeof (UINT32);
+ }
+
+ if (PcdGetBool (PcdNoACPIReclaimMemory)) {
+ AcpiAllocateMemoryType = EfiACPIMemoryNVS;
+ } else {
+ AcpiAllocateMemoryType = EfiACPIReclaimMemory;
+ }
+
+ if (mAcpiTableAllocType != AllocateAnyPages) {
+ //
+ // Allocate memory in the lower 32 bit of address range for
+ // compatibility with ACPI 1.0 OS.
+ //
+ // This is done because ACPI 1.0 pointers are 32 bit values.
+ // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
+ // There is no architectural reason these should be below 4GB, it is purely
+ // for convenience of implementation that we force memory below 4GB.
+ //
+ PageAddress = 0xFFFFFFFF;
+ Status = gBS->AllocatePages (
+ mAcpiTableAllocType,
+ AcpiAllocateMemoryType,
+ EFI_SIZE_TO_PAGES (TotalSize),
+ &PageAddress
+ );
+ } else {
+ Status = gBS->AllocatePool (
+ AcpiAllocateMemoryType,
+ TotalSize,
+ (VOID **)&Pointer
+ );
+ }
+
+ if (EFI_ERROR (Status)) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (mAcpiTableAllocType != AllocateAnyPages) {
+ Pointer = (UINT8 *)(UINTN)PageAddress;
+ }
+
+ ZeroMem (Pointer, TotalSize);
+
+ AcpiTableInstance->Rsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + NewMaxTableNumber * sizeof (UINT32));
+ AcpiTableInstance->Rsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
+ Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + NewMaxTableNumber * sizeof (UINT32));
+ }
+
+ AcpiTableInstance->Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
+
+ //
+ // Update RSDP to point to the new Rsdt and Xsdt address.
+ //
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ AcpiTableInstance->Rsdp1->RsdtAddress = (UINT32)(UINTN)AcpiTableInstance->Rsdt1;
+ AcpiTableInstance->Rsdp3->RsdtAddress = (UINT32)(UINTN)AcpiTableInstance->Rsdt3;
+ }
+
+ CurrentData = (UINT64)(UINTN)AcpiTableInstance->Xsdt;
+ CopyMem (&AcpiTableInstance->Rsdp3->XsdtAddress, &CurrentData, sizeof (UINT64));
+
+ //
+ // copy the original Rsdt1, Rsdt3 and Xsdt structure to new buffer
+ //
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ CopyMem (AcpiTableInstance->Rsdt1, TempPrivateData.Rsdt1, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT32)));
+ CopyMem (AcpiTableInstance->Rsdt3, TempPrivateData.Rsdt3, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT32)));
+ }
+
+ CopyMem (AcpiTableInstance->Xsdt, TempPrivateData.Xsdt, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT64)));
+
+ if (mAcpiTableAllocType != AllocateAnyPages) {
+ //
+ // Calculate orignal ACPI table buffer size
+ //
+ TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
+ mEfiAcpiMaxNumTables * sizeof (UINT64);
+
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ TotalSize += sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
+ mEfiAcpiMaxNumTables * sizeof (UINT32) +
+ sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
+ mEfiAcpiMaxNumTables * sizeof (UINT32);
+ }
+
+ gBS->FreePages (
+ (EFI_PHYSICAL_ADDRESS)(UINTN)TempPrivateData.Rsdt1,
+ EFI_SIZE_TO_PAGES (TotalSize)
+ );
+ } else {
+ gBS->FreePool (TempPrivateData.Rsdt1);
+ }
+
+ //
+ // Update the Max ACPI table number
+ //
+ mEfiAcpiMaxNumTables = NewMaxTableNumber;
+ return EFI_SUCCESS;
+}
+
+/**
+ Free the memory associated with the provided EFI_ACPI_TABLE_LIST instance.
+
+ @param TableEntry EFI_ACPI_TABLE_LIST instance pointer
+
+**/
+STATIC
+VOID
+FreeTableMemory (
+ EFI_ACPI_TABLE_LIST *TableEntry
+ )
+{
+ if (TableEntry->PoolAllocation) {
+ gBS->FreePool (TableEntry->Table);
+ } else {
+ gBS->FreePages (
+ (EFI_PHYSICAL_ADDRESS)(UINTN)TableEntry->Table,
+ EFI_SIZE_TO_PAGES (TableEntry->TableSize)
+ );
+ }
+}
+
+/**
+ This function adds an ACPI table to the table list. It will detect FACS and
+ allocate the correct type of memory and properly align the table.
+
+ @param AcpiTableInstance Instance of the protocol.
+ @param Table Table to add.
+ @param Checksum Does the table require checksumming.
+ @param Version The version of the list to add the table to.
+ @param IsFromHob True, if add Apci Table from Hob List.
+ @param Handle Pointer for returning the handle.
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_OUT_OF_RESOURCES Could not allocate a required resource.
+ @retval EFI_ACCESS_DENIED The table signature matches a table already
+ present in the system and platform policy
+ does not allow duplicate tables of this type.
+
+**/
+EFI_STATUS
+AddTableToList (
+ IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
+ IN VOID *Table,
+ IN BOOLEAN Checksum,
+ IN EFI_ACPI_TABLE_VERSION Version,
+ IN BOOLEAN IsFromHob,
+ OUT UINTN *Handle
+ )
+{
+ EFI_STATUS Status;
+ EFI_ACPI_TABLE_LIST *CurrentTableList;
+ UINT32 CurrentTableSignature;
+ UINT32 CurrentTableSize;
+ UINT32 *CurrentRsdtEntry;
+ VOID *CurrentXsdtEntry;
+ EFI_PHYSICAL_ADDRESS AllocPhysAddress;
+ UINT64 Buffer64;
+ BOOLEAN AddToRsdt;
+ EFI_MEMORY_TYPE AcpiAllocateMemoryType;
+
+ //
+ // Check for invalid input parameters
+ //
+ ASSERT (AcpiTableInstance);
+ ASSERT (Table);
+ ASSERT (Handle);
+
+ //
+ // Init locals
+ //
+ AddToRsdt = TRUE;
+
+ //
+ // Create a new list entry
+ //
+ CurrentTableList = AllocatePool (sizeof (EFI_ACPI_TABLE_LIST));
+ ASSERT (CurrentTableList);
+
+ //
+ // Determine table type and size
+ //
+ CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *)Table)->Signature;
+ CurrentTableSize = ((EFI_ACPI_COMMON_HEADER *)Table)->Length;
+
+ //
+ // Allocate a buffer for the table. All tables are allocated in the lower 32 bits of address space
+ // for backwards compatibility with ACPI 1.0 OS.
+ //
+ // This is done because ACPI 1.0 pointers are 32 bit values.
+ // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
+ // There is no architectural reason these should be below 4GB, it is purely
+ // for convenience of implementation that we force memory below 4GB.
+ //
+ AllocPhysAddress = 0xFFFFFFFF;
+ CurrentTableList->TableSize = CurrentTableSize;
+ CurrentTableList->PoolAllocation = FALSE;
+
+ if (PcdGetBool (PcdNoACPIReclaimMemory)) {
+ AcpiAllocateMemoryType = EfiACPIMemoryNVS;
+ } else {
+ AcpiAllocateMemoryType = EfiACPIReclaimMemory;
+ }
+
+ //
+ // Allocation memory type depends on the type of the table
+ //
+ if ((CurrentTableSignature == EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
+ (CurrentTableSignature == EFI_ACPI_4_0_UEFI_ACPI_DATA_TABLE_SIGNATURE))
+ {
+ //
+ // Allocate memory for the FACS. This structure must be aligned
+ // on a 64 byte boundary and must be ACPI NVS memory.
+ // Using AllocatePages should ensure that it is always aligned.
+ // Do not change signature for new ACPI version because they are same.
+ //
+ // UEFI table also need to be in ACPI NVS memory, because some data field
+ // could be updated by OS present agent. For example, BufferPtrAddress in
+ // SMM communication ACPI table.
+ //
+ ASSERT ((EFI_PAGE_SIZE % 64) == 0);
+ if (IsFromHob) {
+ AllocPhysAddress = (UINTN)Table;
+ Status = EFI_SUCCESS;
+ } else {
+ Status = gBS->AllocatePages (
+ AllocateMaxAddress,
+ EfiACPIMemoryNVS,
+ EFI_SIZE_TO_PAGES (CurrentTableList->TableSize),
+ &AllocPhysAddress
+ );
+ }
+ } else if (mAcpiTableAllocType == AllocateAnyPages) {
+ //
+ // If there is no allocation limit, there is also no need to use page
+ // based allocations for ACPI tables, which may be wasteful on platforms
+ // such as AArch64 that allocate multiples of 64 KB
+ //
+ Status = gBS->AllocatePool (
+ AcpiAllocateMemoryType,
+ CurrentTableList->TableSize,
+ (VOID **)&CurrentTableList->Table
+ );
+ CurrentTableList->PoolAllocation = TRUE;
+ } else {
+ //
+ // All other tables are ACPI reclaim memory, no alignment requirements.
+ //
+ Status = gBS->AllocatePages (
+ mAcpiTableAllocType,
+ AcpiAllocateMemoryType,
+ EFI_SIZE_TO_PAGES (CurrentTableList->TableSize),
+ &AllocPhysAddress
+ );
+ CurrentTableList->Table = (EFI_ACPI_COMMON_HEADER *)(UINTN)AllocPhysAddress;
+ }
+
+ //
+ // Check return value from memory alloc.
+ //
+ if (EFI_ERROR (Status)) {
+ gBS->FreePool (CurrentTableList);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (!CurrentTableList->PoolAllocation) {
+ CurrentTableList->Table = (EFI_ACPI_COMMON_HEADER *)(UINTN)AllocPhysAddress;
+ }
+
+ //
+ // Initialize the table contents
+ //
+ CurrentTableList->Signature = EFI_ACPI_TABLE_LIST_SIGNATURE;
+ CopyMem (CurrentTableList->Table, Table, CurrentTableSize);
+ CurrentTableList->Handle = AcpiTableInstance->CurrentHandle++;
+ *Handle = CurrentTableList->Handle;
+ CurrentTableList->Version = Version;
+
+ //
+ // Update internal pointers if this is a required table. If it is a required
+ // table and a table of that type already exists, return an error.
+ //
+ // Calculate the checksum if the table is not FACS.
+ //
+ switch (CurrentTableSignature) {
+ case EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:
+ //
+ // We don't add the FADT in the standard way because some
+ // OS expect the FADT to be early in the table list.
+ // So we always add it as the first element in the list.
+ //
+ AddToRsdt = FALSE;
+
+ //
+ // Check that the table has not been previously added.
+ //
+ if ((((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) && (AcpiTableInstance->Fadt1 != NULL)) ||
+ (((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) && (AcpiTableInstance->Fadt3 != NULL))
+ )
+ {
+ FreeTableMemory (CurrentTableList);
+ gBS->FreePool (CurrentTableList);
+ return EFI_ACCESS_DENIED;
+ }
+
+ //
+ // Add the table to the appropriate table version
+ //
+ if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ //
+ // Save a pointer to the table
+ //
+ AcpiTableInstance->Fadt1 = (EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *)CurrentTableList->Table;
+
+ //
+ // Update pointers in FADT. If tables don't exist this will put NULL pointers there.
+ //
+ AcpiTableInstance->Fadt1->FirmwareCtrl = (UINT32)(UINTN)AcpiTableInstance->Facs1;
+ AcpiTableInstance->Fadt1->Dsdt = (UINT32)(UINTN)AcpiTableInstance->Dsdt1;
+
+ //
+ // RSDP OEM information is updated to match the FADT OEM information
+ //
+ CopyMem (
+ &AcpiTableInstance->Rsdp1->OemId,
+ &AcpiTableInstance->Fadt1->Header.OemId,
+ 6
+ );
+
+ //
+ // RSDT OEM information is updated to match the FADT OEM information.
+ //
+ CopyMem (
+ &AcpiTableInstance->Rsdt1->OemId,
+ &AcpiTableInstance->Fadt1->Header.OemId,
+ 6
+ );
+
+ CopyMem (
+ &AcpiTableInstance->Rsdt1->OemTableId,
+ &AcpiTableInstance->Fadt1->Header.OemTableId,
+ sizeof (UINT64)
+ );
+ AcpiTableInstance->Rsdt1->OemRevision = AcpiTableInstance->Fadt1->Header.OemRevision;
+ }
+
+ if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
+ //
+ // Save a pointer to the table
+ //
+ AcpiTableInstance->Fadt3 = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)CurrentTableList->Table;
+
+ //
+ // Update pointers in FADT. If tables don't exist this will put NULL pointers there.
+ // Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
+ // vice-versa.
+ //
+ if ((UINT64)(UINTN)AcpiTableInstance->Facs3 < BASE_4GB) {
+ AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32)(UINTN)AcpiTableInstance->Facs3;
+ ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
+ } else {
+ Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Facs3;
+ CopyMem (
+ &AcpiTableInstance->Fadt3->XFirmwareCtrl,
+ &Buffer64,
+ sizeof (UINT64)
+ );
+ AcpiTableInstance->Fadt3->FirmwareCtrl = 0;
+ }
+
+ if ((UINT64)(UINTN)AcpiTableInstance->Dsdt3 < BASE_4GB) {
+ AcpiTableInstance->Fadt3->Dsdt = (UINT32)(UINTN)AcpiTableInstance->Dsdt3;
+ //
+ // Comment block "the caller installs the tables in "DSDT, FADT" order"
+ // The below comments are also in "the caller installs the tables in "FADT, DSDT" order" comment block.
+ //
+ // The ACPI specification, up to and including revision 5.1 Errata A,
+ // allows the DSDT and X_DSDT fields to be both set in the FADT.
+ // (Obviously, this only makes sense if the DSDT address is representable in 4 bytes.)
+ // Starting with 5.1 Errata B, specifically for Mantis 1393 <https://mantis.uefi.org/mantis/view.php?id=1393>,
+ // the spec requires at most one of DSDT and X_DSDT fields to be set to a nonzero value,
+ // but strangely an exception is 6.0 that has no this requirement.
+ //
+ // Here we do not make the DSDT and X_DSDT fields mutual exclusion conditionally
+ // by checking FADT revision, but always set both DSDT and X_DSDT fields in the FADT
+ // to have better compatibility as some OS may have assumption to only consume X_DSDT
+ // field even the DSDT address is < 4G.
+ //
+ Buffer64 = AcpiTableInstance->Fadt3->Dsdt;
+ } else {
+ AcpiTableInstance->Fadt3->Dsdt = 0;
+ Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Dsdt3;
+ }
+
+ CopyMem (&AcpiTableInstance->Fadt3->XDsdt, &Buffer64, sizeof (UINT64));
+
+ //
+ // RSDP OEM information is updated to match the FADT OEM information
+ //
+ CopyMem (
+ &AcpiTableInstance->Rsdp3->OemId,
+ &AcpiTableInstance->Fadt3->Header.OemId,
+ 6
+ );
+
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ //
+ // RSDT OEM information is updated to match FADT OEM information.
+ //
+ CopyMem (
+ &AcpiTableInstance->Rsdt3->OemId,
+ &AcpiTableInstance->Fadt3->Header.OemId,
+ 6
+ );
+ CopyMem (
+ &AcpiTableInstance->Rsdt3->OemTableId,
+ &AcpiTableInstance->Fadt3->Header.OemTableId,
+ sizeof (UINT64)
+ );
+ AcpiTableInstance->Rsdt3->OemRevision = AcpiTableInstance->Fadt3->Header.OemRevision;
+ }
+
+ //
+ // XSDT OEM information is updated to match FADT OEM information.
+ //
+ CopyMem (
+ &AcpiTableInstance->Xsdt->OemId,
+ &AcpiTableInstance->Fadt3->Header.OemId,
+ 6
+ );
+ CopyMem (
+ &AcpiTableInstance->Xsdt->OemTableId,
+ &AcpiTableInstance->Fadt3->Header.OemTableId,
+ sizeof (UINT64)
+ );
+ AcpiTableInstance->Xsdt->OemRevision = AcpiTableInstance->Fadt3->Header.OemRevision;
+ }
+
+ //
+ // Checksum the table
+ //
+ if (Checksum) {
+ AcpiPlatformChecksum (
+ CurrentTableList->Table,
+ CurrentTableList->Table->Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+
+ break;
+
+ case EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:
+ //
+ // Check that the table has not been previously added.
+ //
+ if ((((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) && (AcpiTableInstance->Facs1 != NULL)) ||
+ (((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) && (AcpiTableInstance->Facs3 != NULL))
+ )
+ {
+ FreeTableMemory (CurrentTableList);
+ gBS->FreePool (CurrentTableList);
+ return EFI_ACCESS_DENIED;
+ }
+
+ //
+ // FACS is referenced by FADT and is not part of RSDT
+ //
+ AddToRsdt = FALSE;
+
+ //
+ // Add the table to the appropriate table version
+ //
+ if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ //
+ // Save a pointer to the table
+ //
+ AcpiTableInstance->Facs1 = (EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)CurrentTableList->Table;
+
+ //
+ // If FADT already exists, update table pointers.
+ //
+ if (AcpiTableInstance->Fadt1 != NULL) {
+ AcpiTableInstance->Fadt1->FirmwareCtrl = (UINT32)(UINTN)AcpiTableInstance->Facs1;
+
+ //
+ // Checksum FADT table
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Fadt1,
+ AcpiTableInstance->Fadt1->Header.Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+ }
+
+ if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
+ //
+ // Save a pointer to the table
+ //
+ AcpiTableInstance->Facs3 = (EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)CurrentTableList->Table;
+
+ //
+ // If FADT already exists, update table pointers.
+ //
+ if (AcpiTableInstance->Fadt3 != NULL) {
+ //
+ // Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
+ // vice-versa.
+ //
+ if ((UINT64)(UINTN)AcpiTableInstance->Facs3 < BASE_4GB) {
+ AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32)(UINTN)AcpiTableInstance->Facs3;
+ ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
+ } else {
+ Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Facs3;
+ CopyMem (
+ &AcpiTableInstance->Fadt3->XFirmwareCtrl,
+ &Buffer64,
+ sizeof (UINT64)
+ );
+ AcpiTableInstance->Fadt3->FirmwareCtrl = 0;
+ }
+
+ //
+ // Checksum FADT table
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Fadt3,
+ AcpiTableInstance->Fadt3->Header.Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+ }
+
+ break;
+
+ case EFI_ACPI_1_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:
+ //
+ // Check that the table has not been previously added.
+ //
+ if ((((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) && (AcpiTableInstance->Dsdt1 != NULL)) ||
+ (((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) && (AcpiTableInstance->Dsdt3 != NULL))
+ )
+ {
+ FreeTableMemory (CurrentTableList);
+ gBS->FreePool (CurrentTableList);
+ return EFI_ACCESS_DENIED;
+ }
+
+ //
+ // DSDT is referenced by FADT and is not part of RSDT
+ //
+ AddToRsdt = FALSE;
+
+ //
+ // Add the table to the appropriate table version
+ //
+ if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ //
+ // Save a pointer to the table
+ //
+ AcpiTableInstance->Dsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *)CurrentTableList->Table;
+
+ //
+ // If FADT already exists, update table pointers.
+ //
+ if (AcpiTableInstance->Fadt1 != NULL) {
+ AcpiTableInstance->Fadt1->Dsdt = (UINT32)(UINTN)AcpiTableInstance->Dsdt1;
+
+ //
+ // Checksum FADT table
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Fadt1,
+ AcpiTableInstance->Fadt1->Header.Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+ }
+
+ if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
+ //
+ // Save a pointer to the table
+ //
+ AcpiTableInstance->Dsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *)CurrentTableList->Table;
+
+ //
+ // If FADT already exists, update table pointers.
+ //
+ if (AcpiTableInstance->Fadt3 != NULL) {
+ if ((UINT64)(UINTN)AcpiTableInstance->Dsdt3 < BASE_4GB) {
+ AcpiTableInstance->Fadt3->Dsdt = (UINT32)(UINTN)AcpiTableInstance->Dsdt3;
+ //
+ // Comment block "the caller installs the tables in "FADT, DSDT" order"
+ // The below comments are also in "the caller installs the tables in "DSDT, FADT" order" comment block.
+ //
+ // The ACPI specification, up to and including revision 5.1 Errata A,
+ // allows the DSDT and X_DSDT fields to be both set in the FADT.
+ // (Obviously, this only makes sense if the DSDT address is representable in 4 bytes.)
+ // Starting with 5.1 Errata B, specifically for Mantis 1393 <https://mantis.uefi.org/mantis/view.php?id=1393>,
+ // the spec requires at most one of DSDT and X_DSDT fields to be set to a nonzero value,
+ // but strangely an exception is 6.0 that has no this requirement.
+ //
+ // Here we do not make the DSDT and X_DSDT fields mutual exclusion conditionally
+ // by checking FADT revision, but always set both DSDT and X_DSDT fields in the FADT
+ // to have better compatibility as some OS may have assumption to only consume X_DSDT
+ // field even the DSDT address is < 4G.
+ //
+ Buffer64 = AcpiTableInstance->Fadt3->Dsdt;
+ } else {
+ AcpiTableInstance->Fadt3->Dsdt = 0;
+ Buffer64 = (UINT64)(UINTN)AcpiTableInstance->Dsdt3;
+ }
+
+ CopyMem (&AcpiTableInstance->Fadt3->XDsdt, &Buffer64, sizeof (UINT64));
+
+ //
+ // Checksum FADT table
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Fadt3,
+ AcpiTableInstance->Fadt3->Header.Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+ }
+
+ //
+ // Checksum the table
+ //
+ if (Checksum) {
+ AcpiPlatformChecksum (
+ CurrentTableList->Table,
+ CurrentTableList->Table->Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+
+ break;
+
+ default:
+ //
+ // Checksum the table
+ //
+ if (Checksum) {
+ AcpiPlatformChecksum (
+ CurrentTableList->Table,
+ CurrentTableList->Table->Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+
+ break;
+ }
+
+ //
+ // Add the table to the current list of tables
+ //
+ InsertTailList (&AcpiTableInstance->TableList, &CurrentTableList->Link);
+
+ //
+ // Add the table to RSDT and/or XSDT table entry lists.
+ //
+ //
+ // Add to ACPI 1.0b table tree
+ //
+ if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ if (AddToRsdt) {
+ //
+ // If the table number exceed the gEfiAcpiMaxNumTables, enlarge the table buffer
+ //
+ if (AcpiTableInstance->NumberOfTableEntries1 >= mEfiAcpiMaxNumTables) {
+ Status = ReallocateAcpiTableBuffer (AcpiTableInstance);
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ CurrentRsdtEntry = (UINT32 *)
+ (
+ (UINT8 *)AcpiTableInstance->Rsdt1 +
+ sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
+ AcpiTableInstance->NumberOfTableEntries1 *
+ sizeof (UINT32)
+ );
+
+ //
+ // Add entry to the RSDT unless its the FACS or DSDT
+ //
+ *CurrentRsdtEntry = (UINT32)(UINTN)CurrentTableList->Table;
+
+ //
+ // Update RSDT length
+ //
+ AcpiTableInstance->Rsdt1->Length = AcpiTableInstance->Rsdt1->Length + sizeof (UINT32);
+
+ AcpiTableInstance->NumberOfTableEntries1++;
+ }
+ }
+
+ //
+ // Add to ACPI 2.0/3.0 table tree
+ //
+ if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
+ if (AddToRsdt) {
+ //
+ // If the table number exceed the gEfiAcpiMaxNumTables, enlarge the table buffer
+ //
+ if (AcpiTableInstance->NumberOfTableEntries3 >= mEfiAcpiMaxNumTables) {
+ Status = ReallocateAcpiTableBuffer (AcpiTableInstance);
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ //
+ // At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.
+ // If it becomes necessary to maintain separate table lists, changes will be required.
+ //
+ CurrentRsdtEntry = (UINT32 *)
+ (
+ (UINT8 *)AcpiTableInstance->Rsdt3 +
+ sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
+ AcpiTableInstance->NumberOfTableEntries3 *
+ sizeof (UINT32)
+ );
+
+ //
+ // Add entry to the RSDT
+ //
+ *CurrentRsdtEntry = (UINT32)(UINTN)CurrentTableList->Table;
+
+ //
+ // Update RSDT length
+ //
+ AcpiTableInstance->Rsdt3->Length = AcpiTableInstance->Rsdt3->Length + sizeof (UINT32);
+ }
+
+ //
+ // This pointer must not be directly dereferenced as the XSDT entries may not
+ // be 64 bit aligned resulting in a possible fault. Use CopyMem to update.
+ //
+ CurrentXsdtEntry = (VOID *)
+ (
+ (UINT8 *)AcpiTableInstance->Xsdt +
+ sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
+ AcpiTableInstance->NumberOfTableEntries3 *
+ sizeof (UINT64)
+ );
+
+ //
+ // Add entry to XSDT, XSDT expects 64 bit pointers, but
+ // the table pointers in XSDT are not aligned on 8 byte boundary.
+ //
+ Buffer64 = (UINT64)(UINTN)CurrentTableList->Table;
+ CopyMem (
+ CurrentXsdtEntry,
+ &Buffer64,
+ sizeof (UINT64)
+ );
+
+ //
+ // Update length
+ //
+ AcpiTableInstance->Xsdt->Length = AcpiTableInstance->Xsdt->Length + sizeof (UINT64);
+
+ AcpiTableInstance->NumberOfTableEntries3++;
+ }
+ }
+
+ ChecksumCommonTables (AcpiTableInstance);
+ return EFI_SUCCESS;
+}
+
+/**
+ This function finds the table specified by the handle and returns a pointer to it.
+ If the handle is not found, EFI_NOT_FOUND is returned and the contents of Table are
+ undefined.
+
+ @param Handle Table to find.
+ @param TableList Table list to search
+ @param Table Pointer to table found.
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_NOT_FOUND No table found matching the handle specified.
+
+**/
+EFI_STATUS
+FindTableByHandle (
+ IN UINTN Handle,
+ IN LIST_ENTRY *TableList,
+ OUT EFI_ACPI_TABLE_LIST **Table
+ )
+{
+ LIST_ENTRY *CurrentLink;
+ EFI_ACPI_TABLE_LIST *CurrentTable;
+
+ //
+ // Check for invalid input parameters
+ //
+ ASSERT (Table);
+
+ //
+ // Find the table
+ //
+ CurrentLink = TableList->ForwardLink;
+
+ while (CurrentLink != TableList) {
+ CurrentTable = EFI_ACPI_TABLE_LIST_FROM_LINK (CurrentLink);
+ if (CurrentTable->Handle == Handle) {
+ //
+ // Found handle, so return this table.
+ //
+ *Table = CurrentTable;
+ return EFI_SUCCESS;
+ }
+
+ CurrentLink = CurrentLink->ForwardLink;
+ }
+
+ //
+ // Table not found
+ //
+ return EFI_NOT_FOUND;
+}
+
+/**
+ This function removes a basic table from the RSDT and/or XSDT.
+ For Acpi 1.0 tables, pass in the Rsdt.
+ For Acpi 2.0 tables, pass in both Rsdt and Xsdt.
+
+ @param Table Pointer to table found.
+ @param NumberOfTableEntries Current number of table entries in the RSDT/XSDT
+ @param Rsdt Pointer to the RSDT to remove from
+ @param Xsdt Pointer to the Xsdt to remove from
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_INVALID_PARAMETER The table was not found in both Rsdt and Xsdt.
+
+**/
+EFI_STATUS
+RemoveTableFromRsdt (
+ IN OUT EFI_ACPI_TABLE_LIST *Table,
+ IN OUT UINTN *NumberOfTableEntries,
+ IN OUT EFI_ACPI_DESCRIPTION_HEADER *Rsdt OPTIONAL,
+ IN OUT EFI_ACPI_DESCRIPTION_HEADER *Xsdt OPTIONAL
+ )
+{
+ UINT32 *CurrentRsdtEntry;
+ VOID *CurrentXsdtEntry;
+ UINT64 CurrentTablePointer64;
+ UINTN Index;
+
+ //
+ // Check for invalid input parameters
+ //
+ ASSERT (Table);
+ ASSERT (NumberOfTableEntries);
+ ASSERT (Rsdt || Xsdt);
+
+ //
+ // Find the table entry in the RSDT and XSDT
+ //
+ for (Index = 0; Index < *NumberOfTableEntries; Index++) {
+ //
+ // At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.
+ // If it becomes necessary to maintain separate table lists, changes will be required.
+ //
+ if (Rsdt != NULL) {
+ CurrentRsdtEntry = (UINT32 *)((UINT8 *)Rsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + Index * sizeof (UINT32));
+ } else {
+ CurrentRsdtEntry = NULL;
+ }
+
+ if (Xsdt != NULL) {
+ //
+ // This pointer must not be directly dereferenced as the XSDT entries may not
+ // be 64 bit aligned resulting in a possible fault. Use CopyMem to update.
+ //
+ CurrentXsdtEntry = (VOID *)((UINT8 *)Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + Index * sizeof (UINT64));
+
+ //
+ // Read the entry value out of the XSDT
+ //
+ CopyMem (&CurrentTablePointer64, CurrentXsdtEntry, sizeof (UINT64));
+ } else {
+ //
+ // Initialize to NULL
+ //
+ CurrentXsdtEntry = 0;
+ CurrentTablePointer64 = 0;
+ }
+
+ //
+ // Check if we have found the corresponding entry in both RSDT and XSDT
+ //
+ if (((Rsdt == NULL) || (*CurrentRsdtEntry == (UINT32)(UINTN)Table->Table)) &&
+ ((Xsdt == NULL) || (CurrentTablePointer64 == (UINT64)(UINTN)Table->Table))
+ )
+ {
+ //
+ // Found entry, so copy all following entries and shrink table
+ // We actually copy all + 1 to copy the initialized value of memory over
+ // the last entry.
+ //
+ if (Rsdt != NULL) {
+ CopyMem (CurrentRsdtEntry, CurrentRsdtEntry + 1, (*NumberOfTableEntries - Index) * sizeof (UINT32));
+ Rsdt->Length = Rsdt->Length - sizeof (UINT32);
+ }
+
+ if (Xsdt != NULL) {
+ CopyMem (CurrentXsdtEntry, ((UINT64 *)CurrentXsdtEntry) + 1, (*NumberOfTableEntries - Index) * sizeof (UINT64));
+ Xsdt->Length = Xsdt->Length - sizeof (UINT64);
+ }
+
+ break;
+ } else if (Index + 1 == *NumberOfTableEntries) {
+ //
+ // At the last entry, and table not found
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+
+ //
+ // Checksum the tables
+ //
+ if (Rsdt != NULL) {
+ AcpiPlatformChecksum (
+ Rsdt,
+ Rsdt->Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+
+ if (Xsdt != NULL) {
+ AcpiPlatformChecksum (
+ Xsdt,
+ Xsdt->Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+
+ //
+ // Decrement the number of tables
+ //
+ (*NumberOfTableEntries)--;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ This function removes a table and frees any associated memory.
+
+ @param AcpiTableInstance Instance of the protocol.
+ @param Version Version(s) to delete.
+ @param Table Pointer to table found.
+
+ @return EFI_SUCCESS The function completed successfully.
+
+**/
+EFI_STATUS
+DeleteTable (
+ IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
+ IN EFI_ACPI_TABLE_VERSION Version,
+ IN OUT EFI_ACPI_TABLE_LIST *Table
+ )
+{
+ UINT32 CurrentTableSignature;
+ BOOLEAN RemoveFromRsdt;
+
+ //
+ // Check for invalid input parameters
+ //
+ ASSERT (AcpiTableInstance);
+ ASSERT (Table);
+
+ //
+ // Init locals
+ //
+ RemoveFromRsdt = TRUE;
+ //
+ // Check for Table->Table
+ //
+ ASSERT (Table->Table != NULL);
+ CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *)Table->Table)->Signature;
+
+ //
+ // Basic tasks to accomplish delete are:
+ // Determine removal requirements (in RSDT/XSDT or not)
+ // Remove entry from RSDT/XSDT
+ // Remove any table references to the table
+ // If no one is using the table
+ // Free the table (removing pointers from private data and tables)
+ // Remove from list
+ // Free list structure
+ //
+ //
+ // Determine if this table is in the RSDT or XSDT
+ //
+ if ((CurrentTableSignature == EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
+ (CurrentTableSignature == EFI_ACPI_2_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) ||
+ (CurrentTableSignature == EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE)
+ )
+ {
+ RemoveFromRsdt = FALSE;
+ }
+
+ //
+ // We don't remove the FADT in the standard way because some
+ // OS expect the FADT to be early in the table list.
+ // So we always put it as the first element in the list.
+ //
+ if (CurrentTableSignature == EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
+ RemoveFromRsdt = FALSE;
+ }
+
+ //
+ // Remove the table from RSDT and XSDT
+ //
+ if (Table->Table != NULL) {
+ //
+ // This is a basic table, remove it from any lists and the Rsdt and/or Xsdt
+ //
+ if (Version & EFI_ACPI_TABLE_VERSION_NONE & Table->Version) {
+ //
+ // Remove this version from the table
+ //
+ Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_NONE;
+ }
+
+ if (Version & EFI_ACPI_TABLE_VERSION_1_0B & Table->Version) {
+ //
+ // Remove this version from the table
+ //
+ Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_1_0B;
+
+ //
+ // Remove from Rsdt. We don't care about the return value because it is
+ // acceptable for the table to not exist in Rsdt.
+ // We didn't add some tables so we don't remove them.
+ //
+ if (RemoveFromRsdt) {
+ RemoveTableFromRsdt (
+ Table,
+ &AcpiTableInstance->NumberOfTableEntries1,
+ AcpiTableInstance->Rsdt1,
+ NULL
+ );
+ }
+ }
+
+ if (Version & ACPI_TABLE_VERSION_GTE_2_0 & Table->Version) {
+ //
+ // Remove this version from the table
+ //
+ Table->Version = Table->Version &~(Version & ACPI_TABLE_VERSION_GTE_2_0);
+
+ //
+ // Remove from Rsdt and Xsdt. We don't care about the return value
+ // because it is acceptable for the table to not exist in Rsdt/Xsdt.
+ // We didn't add some tables so we don't remove them.
+ //
+ if (RemoveFromRsdt) {
+ RemoveTableFromRsdt (
+ Table,
+ &AcpiTableInstance->NumberOfTableEntries3,
+ AcpiTableInstance->Rsdt3,
+ AcpiTableInstance->Xsdt
+ );
+ }
+ }
+
+ //
+ // Free the table, clean up any dependent tables and our private data pointers.
+ //
+ switch (Table->Table->Signature) {
+ case EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:
+ if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ AcpiTableInstance->Fadt1 = NULL;
+ }
+
+ if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
+ AcpiTableInstance->Fadt3 = NULL;
+ }
+
+ break;
+
+ case EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:
+ if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ AcpiTableInstance->Facs1 = NULL;
+
+ //
+ // Update FADT table pointers
+ //
+ if (AcpiTableInstance->Fadt1 != NULL) {
+ AcpiTableInstance->Fadt1->FirmwareCtrl = 0;
+
+ //
+ // Checksum table
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Fadt1,
+ AcpiTableInstance->Fadt1->Header.Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+ }
+
+ if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
+ AcpiTableInstance->Facs3 = NULL;
+
+ //
+ // Update FADT table pointers
+ //
+ if (AcpiTableInstance->Fadt3 != NULL) {
+ AcpiTableInstance->Fadt3->FirmwareCtrl = 0;
+ ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
+
+ //
+ // Checksum table
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Fadt3,
+ AcpiTableInstance->Fadt3->Header.Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+ }
+
+ break;
+
+ case EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:
+ if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ AcpiTableInstance->Dsdt1 = NULL;
+
+ //
+ // Update FADT table pointers
+ //
+ if (AcpiTableInstance->Fadt1 != NULL) {
+ AcpiTableInstance->Fadt1->Dsdt = 0;
+
+ //
+ // Checksum table
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Fadt1,
+ AcpiTableInstance->Fadt1->Header.Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+ }
+
+ if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
+ AcpiTableInstance->Dsdt3 = NULL;
+
+ //
+ // Update FADT table pointers
+ //
+ if (AcpiTableInstance->Fadt3 != NULL) {
+ AcpiTableInstance->Fadt3->Dsdt = 0;
+ ZeroMem (&AcpiTableInstance->Fadt3->XDsdt, sizeof (UINT64));
+
+ //
+ // Checksum table
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Fadt3,
+ AcpiTableInstance->Fadt3->Header.Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+ }
+
+ break;
+
+ default:
+ //
+ // Do nothing
+ //
+ break;
+ }
+ }
+
+ //
+ // If no version is using this table anymore, remove and free list entry.
+ //
+ if (Table->Version == 0) {
+ //
+ // Free the Table
+ //
+ FreeTableMemory (Table);
+ RemoveEntryList (&(Table->Link));
+ gBS->FreePool (Table);
+ }
+
+ //
+ // Done
+ //
+ return EFI_SUCCESS;
+}
+
+/**
+ This function finds and removes the table specified by the handle.
+
+ @param AcpiTableInstance Instance of the protocol.
+ @param Version Bitmask of which versions to remove.
+ @param Handle Table to remove.
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_ABORTED An error occurred.
+ @return EFI_NOT_FOUND Handle not found in table list.
+
+**/
+EFI_STATUS
+RemoveTableFromList (
+ IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
+ IN EFI_ACPI_TABLE_VERSION Version,
+ IN UINTN Handle
+ )
+{
+ EFI_ACPI_TABLE_LIST *Table;
+ EFI_STATUS Status;
+
+ Table = (EFI_ACPI_TABLE_LIST *)NULL;
+
+ //
+ // Check for invalid input parameters
+ //
+ ASSERT (AcpiTableInstance);
+
+ //
+ // Find the table
+ //
+ Status = FindTableByHandle (
+ Handle,
+ &AcpiTableInstance->TableList,
+ &Table
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Remove the table
+ //
+ Status = DeleteTable (AcpiTableInstance, Version, Table);
+ if (EFI_ERROR (Status)) {
+ return EFI_ABORTED;
+ }
+
+ //
+ // Completed successfully
+ //
+ return EFI_SUCCESS;
+}
+
+/**
+ This function calculates and updates an UINT8 checksum.
+
+ @param Buffer Pointer to buffer to checksum
+ @param Size Number of bytes to checksum
+ @param ChecksumOffset Offset to place the checksum result in
+
+ @return EFI_SUCCESS The function completed successfully.
+
+**/
+EFI_STATUS
+AcpiPlatformChecksum (
+ IN VOID *Buffer,
+ IN UINTN Size,
+ IN UINTN ChecksumOffset
+ )
+{
+ UINT8 Sum;
+ UINT8 *Ptr;
+
+ Sum = 0;
+ //
+ // Initialize pointer
+ //
+ Ptr = Buffer;
+
+ //
+ // set checksum to 0 first
+ //
+ Ptr[ChecksumOffset] = 0;
+
+ //
+ // add all content of buffer
+ //
+ while ((Size--) != 0) {
+ Sum = (UINT8)(Sum + (*Ptr++));
+ }
+
+ //
+ // set checksum
+ //
+ Ptr = Buffer;
+ Ptr[ChecksumOffset] = (UINT8)(0xff - Sum + 1);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Checksum all versions of the common tables, RSDP, RSDT, XSDT.
+
+ @param AcpiTableInstance Protocol instance private data.
+
+ @return EFI_SUCCESS The function completed successfully.
+
+**/
+EFI_STATUS
+ChecksumCommonTables (
+ IN OUT EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
+ )
+{
+ //
+ // RSDP ACPI 1.0 checksum for 1.0 table. This is only the first 20 bytes of the structure
+ //
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Rsdp1,
+ sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
+ OFFSET_OF (
+ EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
+ Checksum
+ )
+ );
+ }
+
+ //
+ // RSDP ACPI 1.0 checksum for 2.0/3.0 table. This is only the first 20 bytes of the structure
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Rsdp3,
+ sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
+ OFFSET_OF (
+ EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
+ Checksum
+ )
+ );
+
+ //
+ // RSDP ACPI 2.0/3.0 checksum, this is the entire table
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Rsdp3,
+ sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
+ OFFSET_OF (
+ EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
+ ExtendedChecksum
+ )
+ );
+
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ //
+ // RSDT checksums
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Rsdt1,
+ AcpiTableInstance->Rsdt1->Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Rsdt3,
+ AcpiTableInstance->Rsdt3->Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+ }
+
+ //
+ // XSDT checksum
+ //
+ AcpiPlatformChecksum (
+ AcpiTableInstance->Xsdt,
+ AcpiTableInstance->Xsdt->Length,
+ OFFSET_OF (
+ EFI_ACPI_DESCRIPTION_HEADER,
+ Checksum
+ )
+ );
+
+ return EFI_SUCCESS;
+}
+
+/**
+ This function will find gUniversalPayloadAcpiTableGuid Guid Hob, and install Acpi table from it.
+
+ @param AcpiTableInstance Protocol instance private data.
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_NOT_FOUND The function doesn't find the gEfiAcpiTableGuid Guid Hob.
+ @return EFI_ABORTED The function could not complete successfully.
+
+**/
+EFI_STATUS
+InstallAcpiTableFromHob (
+ EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
+ )
+{
+ EFI_HOB_GUID_TYPE *GuidHob;
+ EFI_ACPI_TABLE_VERSION Version;
+ EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp;
+ EFI_ACPI_DESCRIPTION_HEADER *Rsdt;
+ EFI_ACPI_DESCRIPTION_HEADER *ChildTable;
+ UINT64 ChildTableAddress;
+ UINTN Count;
+ UINTN Index;
+ UINTN TableKey;
+ EFI_STATUS Status;
+ UINTN EntrySize;
+ UNIVERSAL_PAYLOAD_ACPI_TABLE *AcpiTableAdress;
+ VOID *TableToInstall;
+ EFI_ACPI_SDT_HEADER *Table;
+ UNIVERSAL_PAYLOAD_GENERIC_HEADER *GenericHeader;
+
+ TableKey = 0;
+ Version = PcdGet32 (PcdAcpiExposedTableVersions);
+ Status = EFI_SUCCESS;
+ //
+ // HOB only contains the ACPI table in 2.0+ format.
+ //
+ GuidHob = GetFirstGuidHob (&gUniversalPayloadAcpiTableGuid);
+ if (GuidHob == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ GenericHeader = (UNIVERSAL_PAYLOAD_GENERIC_HEADER *)GET_GUID_HOB_DATA (GuidHob);
+ if ((sizeof (UNIVERSAL_PAYLOAD_GENERIC_HEADER) > GET_GUID_HOB_DATA_SIZE (GuidHob)) || (GenericHeader->Length > GET_GUID_HOB_DATA_SIZE (GuidHob))) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (GenericHeader->Revision == UNIVERSAL_PAYLOAD_ACPI_TABLE_REVISION) {
+ //
+ // UNIVERSAL_PAYLOAD_ACPI_TABLE structure is used when Revision equals to UNIVERSAL_PAYLOAD_ACPI_TABLE_REVISION
+ //
+ AcpiTableAdress = (UNIVERSAL_PAYLOAD_ACPI_TABLE *)GET_GUID_HOB_DATA (GuidHob);
+ if (AcpiTableAdress->Header.Length < UNIVERSAL_PAYLOAD_SIZEOF_THROUGH_FIELD (UNIVERSAL_PAYLOAD_ACPI_TABLE, Rsdp)) {
+ //
+ // Retrun if can't find the ACPI Info Hob with enough length
+ //
+ return EFI_NOT_FOUND;
+ }
+
+ Rsdp = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)(UINTN)(AcpiTableAdress->Rsdp);
+
+ //
+ // An ACPI-compatible OS must use the XSDT if present.
+ // It shouldn't happen that XsdtAddress points beyond 4G range in 32-bit environment.
+ //
+ ASSERT ((UINTN)Rsdp->XsdtAddress == Rsdp->XsdtAddress);
+
+ EntrySize = sizeof (UINT64);
+ Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Rsdp->XsdtAddress;
+ if (Rsdt == NULL) {
+ //
+ // XsdtAddress is zero, then we use Rsdt which has 32 bit entry
+ //
+ Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Rsdp->RsdtAddress;
+ EntrySize = sizeof (UINT32);
+ }
+
+ if (Rsdt->Length <= sizeof (EFI_ACPI_DESCRIPTION_HEADER)) {
+ return EFI_ABORTED;
+ }
+
+ Count = (Rsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) / EntrySize;
+
+ for (Index = 0; Index < Count; Index++) {
+ ChildTableAddress = 0;
+ CopyMem (&ChildTableAddress, (UINT8 *)(Rsdt + 1) + EntrySize * Index, EntrySize);
+ //
+ // If the address is of UINT64 while this module runs at 32 bits,
+ // make sure the upper bits are all-zeros.
+ //
+ ASSERT (ChildTableAddress == (UINTN)ChildTableAddress);
+ if (ChildTableAddress != (UINTN)ChildTableAddress) {
+ Status = EFI_ABORTED;
+ break;
+ }
+
+ ChildTable = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)ChildTableAddress;
+ Status = AddTableToList (AcpiTableInstance, ChildTable, TRUE, Version, TRUE, &TableKey);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "InstallAcpiTableFromHob: Fail to add ACPI table at 0x%p\n", ChildTable));
+ ASSERT_EFI_ERROR (Status);
+ break;
+ }
+
+ if (ChildTable->Signature == EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
+ //
+ // Add the FACS and DSDT tables if it is not NULL.
+ //
+ if (((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->FirmwareCtrl != 0) {
+ TableToInstall = (VOID *)(UINTN)((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->FirmwareCtrl;
+ Status = AddTableToList (AcpiTableInstance, TableToInstall, TRUE, Version, TRUE, &TableKey);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "InstallAcpiTableFromHob: Fail to add ACPI table FACS\n"));
+ ASSERT_EFI_ERROR (Status);
+ break;
+ }
+ }
+
+ //
+ // First check if xDSDT is available, as that is preferred as per
+ // ACPI Spec 6.5+ Table 5-9 X_DSDT definition
+ //
+ if (((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->XDsdt != 0) {
+ TableToInstall = (VOID *)(UINTN)((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->XDsdt;
+ } else if (((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->Dsdt != 0) {
+ TableToInstall = (VOID *)(UINTN)((EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *)ChildTable)->Dsdt;
+ } else {
+ DEBUG ((DEBUG_ERROR, "DSDT table not found\n"));
+ continue;
+ }
+
+ Status = AddTableToList (AcpiTableInstance, TableToInstall, TRUE, Version, TRUE, &TableKey);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "InstallAcpiTableFromHob: Fail to add ACPI table DSDT\n"));
+ ASSERT_EFI_ERROR (Status);
+ break;
+ }
+ }
+ }
+ } else {
+ return EFI_NOT_FOUND;
+ }
+
+ if (EFI_ERROR (Status)) {
+ //
+ // Error happens when trying to add ACPI table to the list.
+ // Remove all of them from list because at this time, no other tables except from HOB are in the list
+ //
+ while (SdtGetAcpiTable (AcpiTableInstance, 0, &Table, &Version, &TableKey) == EFI_SUCCESS) {
+ RemoveTableFromList (AcpiTableInstance, Version, TableKey);
+ }
+ } else {
+ Status = PublishTables (AcpiTableInstance, Version);
+ }
+
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+}
+
+/**
+ Constructor for the ACPI table protocol. Initializes instance
+ data.
+
+ @param AcpiTableInstance Instance to construct
+
+ @return EFI_SUCCESS Instance initialized.
+ @return EFI_OUT_OF_RESOURCES Unable to allocate required resources.
+
+**/
+EFI_STATUS
+AcpiTableAcpiTableConstructor (
+ EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
+ )
+{
+ EFI_STATUS Status;
+ UINT64 CurrentData;
+ UINTN TotalSize;
+ UINTN RsdpTableSize;
+ UINT8 *Pointer;
+ EFI_PHYSICAL_ADDRESS PageAddress;
+ EFI_MEMORY_TYPE AcpiAllocateMemoryType;
+
+ //
+ // Check for invalid input parameters
+ //
+ ASSERT (AcpiTableInstance);
+
+ //
+ // If ACPI v1.0b is among the ACPI versions we aim to support, we have to
+ // ensure that all memory allocations are below 4 GB.
+ //
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ mAcpiTableAllocType = AllocateMaxAddress;
+ } else {
+ mAcpiTableAllocType = AllocateAnyPages;
+ }
+
+ InitializeListHead (&AcpiTableInstance->TableList);
+ AcpiTableInstance->CurrentHandle = 1;
+
+ AcpiTableInstance->AcpiTableProtocol.InstallAcpiTable = InstallAcpiTable;
+ AcpiTableInstance->AcpiTableProtocol.UninstallAcpiTable = UninstallAcpiTable;
+
+ if (FeaturePcdGet (PcdInstallAcpiSdtProtocol)) {
+ SdtAcpiTableAcpiSdtConstructor (AcpiTableInstance);
+ }
+
+ //
+ // Create RSDP table
+ //
+ RsdpTableSize = sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ RsdpTableSize += sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
+ }
+
+ if (PcdGetBool (PcdNoACPIReclaimMemory)) {
+ AcpiAllocateMemoryType = EfiACPIMemoryNVS;
+ } else {
+ AcpiAllocateMemoryType = EfiACPIReclaimMemory;
+ }
+
+ if (mAcpiTableAllocType != AllocateAnyPages) {
+ PageAddress = 0xFFFFFFFF;
+ Status = gBS->AllocatePages (
+ mAcpiTableAllocType,
+ AcpiAllocateMemoryType,
+ EFI_SIZE_TO_PAGES (RsdpTableSize),
+ &PageAddress
+ );
+ } else {
+ Status = gBS->AllocatePool (
+ AcpiAllocateMemoryType,
+ RsdpTableSize,
+ (VOID **)&Pointer
+ );
+ }
+
+ if (EFI_ERROR (Status)) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (mAcpiTableAllocType != AllocateAnyPages) {
+ Pointer = (UINT8 *)(UINTN)PageAddress;
+ }
+
+ ZeroMem (Pointer, RsdpTableSize);
+
+ AcpiTableInstance->Rsdp1 = (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)Pointer;
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ Pointer += sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
+ }
+
+ AcpiTableInstance->Rsdp3 = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)Pointer;
+
+ //
+ // Create RSDT, XSDT structures
+ //
+ TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
+ mEfiAcpiMaxNumTables * sizeof (UINT64);
+
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ TotalSize += sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
+ mEfiAcpiMaxNumTables * sizeof (UINT32) +
+ sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
+ mEfiAcpiMaxNumTables * sizeof (UINT32);
+ }
+
+ if (mAcpiTableAllocType != AllocateAnyPages) {
+ //
+ // Allocate memory in the lower 32 bit of address range for
+ // compatibility with ACPI 1.0 OS.
+ //
+ // This is done because ACPI 1.0 pointers are 32 bit values.
+ // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
+ // There is no architectural reason these should be below 4GB, it is purely
+ // for convenience of implementation that we force memory below 4GB.
+ //
+ PageAddress = 0xFFFFFFFF;
+ Status = gBS->AllocatePages (
+ mAcpiTableAllocType,
+ AcpiAllocateMemoryType,
+ EFI_SIZE_TO_PAGES (TotalSize),
+ &PageAddress
+ );
+ } else {
+ Status = gBS->AllocatePool (
+ AcpiAllocateMemoryType,
+ TotalSize,
+ (VOID **)&Pointer
+ );
+ }
+
+ if (EFI_ERROR (Status)) {
+ if (mAcpiTableAllocType != AllocateAnyPages) {
+ gBS->FreePages (
+ (EFI_PHYSICAL_ADDRESS)(UINTN)AcpiTableInstance->Rsdp1,
+ EFI_SIZE_TO_PAGES (RsdpTableSize)
+ );
+ } else {
+ gBS->FreePool (AcpiTableInstance->Rsdp1);
+ }
+
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (mAcpiTableAllocType != AllocateAnyPages) {
+ Pointer = (UINT8 *)(UINTN)PageAddress;
+ }
+
+ ZeroMem (Pointer, TotalSize);
+
+ AcpiTableInstance->Rsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));
+ AcpiTableInstance->Rsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
+ Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));
+ }
+
+ AcpiTableInstance->Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)Pointer;
+
+ //
+ // Initialize RSDP
+ //
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ CurrentData = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;
+ CopyMem (&AcpiTableInstance->Rsdp1->Signature, &CurrentData, sizeof (UINT64));
+ CopyMem (AcpiTableInstance->Rsdp1->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdp1->OemId));
+ AcpiTableInstance->Rsdp1->Reserved = EFI_ACPI_RESERVED_BYTE;
+ AcpiTableInstance->Rsdp1->RsdtAddress = (UINT32)(UINTN)AcpiTableInstance->Rsdt1;
+ }
+
+ CurrentData = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;
+ CopyMem (&AcpiTableInstance->Rsdp3->Signature, &CurrentData, sizeof (UINT64));
+ CopyMem (AcpiTableInstance->Rsdp3->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdp3->OemId));
+ AcpiTableInstance->Rsdp3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_REVISION;
+ AcpiTableInstance->Rsdp3->Length = sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ AcpiTableInstance->Rsdp3->RsdtAddress = (UINT32)(UINTN)AcpiTableInstance->Rsdt3;
+ }
+
+ CurrentData = (UINT64)(UINTN)AcpiTableInstance->Xsdt;
+ CopyMem (&AcpiTableInstance->Rsdp3->XsdtAddress, &CurrentData, sizeof (UINT64));
+ SetMem (AcpiTableInstance->Rsdp3->Reserved, 3, EFI_ACPI_RESERVED_BYTE);
+
+ if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
+ //
+ // Initialize Rsdt
+ //
+ // Note that we "reserve" one entry for the FADT so it can always be
+ // at the beginning of the list of tables. Some OS don't seem
+ // to find it correctly if it is too far down the list.
+ //
+ AcpiTableInstance->Rsdt1->Signature = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
+ AcpiTableInstance->Rsdt1->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
+ AcpiTableInstance->Rsdt1->Revision = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;
+ CopyMem (AcpiTableInstance->Rsdt1->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdt1->OemId));
+ CurrentData = PcdGet64 (PcdAcpiDefaultOemTableId);
+ CopyMem (&AcpiTableInstance->Rsdt1->OemTableId, &CurrentData, sizeof (UINT64));
+ AcpiTableInstance->Rsdt1->OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
+ AcpiTableInstance->Rsdt1->CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
+ AcpiTableInstance->Rsdt1->CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
+ //
+ // We always reserve first one for FADT
+ //
+ AcpiTableInstance->NumberOfTableEntries1 = 1;
+ AcpiTableInstance->Rsdt1->Length = AcpiTableInstance->Rsdt1->Length + sizeof (UINT32);
+
+ AcpiTableInstance->Rsdt3->Signature = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
+ AcpiTableInstance->Rsdt3->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
+ AcpiTableInstance->Rsdt3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;
+ CopyMem (AcpiTableInstance->Rsdt3->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdt3->OemId));
+ CurrentData = PcdGet64 (PcdAcpiDefaultOemTableId);
+ CopyMem (&AcpiTableInstance->Rsdt3->OemTableId, &CurrentData, sizeof (UINT64));
+ AcpiTableInstance->Rsdt3->OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
+ AcpiTableInstance->Rsdt3->CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
+ AcpiTableInstance->Rsdt3->CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
+ //
+ // We always reserve first one for FADT
+ //
+ AcpiTableInstance->Rsdt3->Length = AcpiTableInstance->Rsdt3->Length + sizeof (UINT32);
+ }
+
+ AcpiTableInstance->NumberOfTableEntries3 = 1;
+
+ //
+ // Initialize Xsdt
+ //
+ AcpiTableInstance->Xsdt->Signature = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
+ AcpiTableInstance->Xsdt->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
+ AcpiTableInstance->Xsdt->Revision = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_REVISION;
+ CopyMem (AcpiTableInstance->Xsdt->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Xsdt->OemId));
+ CurrentData = PcdGet64 (PcdAcpiDefaultOemTableId);
+ CopyMem (&AcpiTableInstance->Xsdt->OemTableId, &CurrentData, sizeof (UINT64));
+ AcpiTableInstance->Xsdt->OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
+ AcpiTableInstance->Xsdt->CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
+ AcpiTableInstance->Xsdt->CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
+ //
+ // We always reserve first one for FADT
+ //
+ AcpiTableInstance->Xsdt->Length = AcpiTableInstance->Xsdt->Length + sizeof (UINT64);
+
+ ChecksumCommonTables (AcpiTableInstance);
+
+ InstallAcpiTableFromHob (AcpiTableInstance);
+
+ //
+ // Completed successfully
+ //
+ return EFI_SUCCESS;
+}
generated by cgit v1.2.3 (git 2.39.0) at 2026-10-12 08:31:47 +0300