8a9e0b7274
2. modify the method of getting right FVB protocol interface. move the notification event of FVB installation into variable driver. and also move ExitBootService event into variable driver. 3. use EFI_FVB2_WRITE_STATUS flag to distinct whether the FVB protocol supports writing operation or not.Currently, DxeCore installs FVB which has ~EFI_FVB2_WRITE_STATUS(that is, disable write) attrbiute. FvbRuntimeDxe driver should provide a full FVB protocol, which returns EFI_FVB2_WRITE_STATUS attribute to signify itself provide writable FVB protocol. So other modules which need write data by FVB protocol can locate it correctly. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7835 6f19259b-4bc3-4df7-8a09-765794883524
97 lines
3.0 KiB
C
97 lines
3.0 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/FvbServiceLib.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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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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