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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8184 6f19259b-4bc3-4df7-8a09-765794883524
102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
/** @file
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The internal header file includes the common header files, defines
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internal structure and functions used by RuntimeVariable module.
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Copyright (c) 2006 - 2008, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _VARIABLE_H_
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#define _VARIABLE_H_
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#include <PiDxe.h>
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#include <Protocol/VariableWrite.h>
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#include <Protocol/FaultTolerantWrite.h>
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#include <Protocol/FirmwareVolumeBlock.h>
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#include <Protocol/Variable.h>
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#include <Library/PcdLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/DxeServicesTableLib.h>
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#include <Library/UefiRuntimeLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseLib.h>
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#include <Library/SynchronizationLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Guid/GlobalVariable.h>
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#include <Guid/EventGroup.h>
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#include <Guid/VariableFormat.h>
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#define VARIABLE_RECLAIM_THRESHOLD (1024)
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typedef struct {
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VARIABLE_HEADER *CurrPtr;
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VARIABLE_HEADER *EndPtr;
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VARIABLE_HEADER *StartPtr;
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BOOLEAN Volatile;
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} VARIABLE_POINTER_TRACK;
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typedef struct {
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EFI_PHYSICAL_ADDRESS VolatileVariableBase;
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EFI_PHYSICAL_ADDRESS NonVolatileVariableBase;
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EFI_LOCK VariableServicesLock;
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UINT32 ReentrantState;
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} VARIABLE_GLOBAL;
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typedef struct {
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VARIABLE_GLOBAL VariableGlobal;
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UINTN VolatileLastVariableOffset;
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UINTN NonVolatileLastVariableOffset;
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UINTN CommonVariableTotalSize;
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UINTN HwErrVariableTotalSize;
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CHAR8 PlatformLangCodes[256]; //Pre-allocate 256 bytes space to accommodate the PlatformlangCodes.
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CHAR8 LangCodes[256]; //Pre-allocate 256 bytes space to accommodate the langCodes.
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CHAR8 PlatformLang[8]; //Pre-allocate 8 bytes space to accommodate the Platformlang variable.
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CHAR8 Lang[4]; //Pre-allocate 4 bytes space to accommodate the lang variable.
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EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbInstance;
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} VARIABLE_MODULE_GLOBAL;
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typedef struct {
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EFI_GUID *Guid;
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CHAR16 *Name;
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UINT32 Attributes;
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UINTN DataSize;
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VOID *Data;
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} VARIABLE_CACHE_ENTRY;
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/**
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Writes a buffer to variable storage space, in the working block.
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This function writes a buffer to variable storage space into firmware
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volume block device. The destination is specified by parameter
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VariableBase. Fault Tolerant Write protocol is used for writing.
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@param VariableBase Base address of variable to write
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@param Buffer Point to the data buffer
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@param BufferSize The number of bytes of the data Buffer
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@retval EFI_SUCCESS The function completed successfully
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@retval EFI_NOT_FOUND Fail to locate Fault Tolerant Write protocol
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@retval EFI_ABORTED The function could not complete successfully
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**/
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EFI_STATUS
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FtwVariableSpace (
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IN EFI_PHYSICAL_ADDRESS VariableBase,
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IN UINT8 *Buffer,
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IN UINTN BufferSize
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);
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#endif
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