3 The internal header file includes the common header files, defines
4 internal structure and functions used by RuntimeVariable module.
6 Copyright (c) 2006 - 2008, Intel Corporation
7 All rights reserved. This program and the accompanying materials
8 are licensed and made available under the terms and conditions of the BSD License
9 which accompanies this distribution. The full text of the license may be found at
10 http://opensource.org/licenses/bsd-license.php
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
21 #include <Protocol/VariableWrite.h>
22 #include <Protocol/FaultTolerantWriteLite.h>
23 #include <Protocol/FirmwareVolumeBlock.h>
24 #include <Protocol/Variable.h>
25 #include <Library/PcdLib.h>
26 #include <Library/UefiDriverEntryPoint.h>
27 #include <Library/DxeServicesTableLib.h>
28 #include <Library/UefiRuntimeLib.h>
29 #include <Library/DebugLib.h>
30 #include <Library/BaseMemoryLib.h>
31 #include <Library/FvbServiceLib.h>
32 #include <Library/UefiBootServicesTableLib.h>
33 #include <Library/UefiLib.h>
34 #include <Library/BaseLib.h>
35 #include <Library/SynchronizationLib.h>
36 #include <Library/MemoryAllocationLib.h>
37 #include <Guid/GlobalVariable.h>
38 #include <Guid/EventGroup.h>
39 #include <Guid/VariableFormat.h>
41 #define VARIABLE_RECLAIM_THRESHOLD (1024)
44 VARIABLE_HEADER
*CurrPtr
;
45 VARIABLE_HEADER
*EndPtr
;
46 VARIABLE_HEADER
*StartPtr
;
48 } VARIABLE_POINTER_TRACK
;
51 EFI_PHYSICAL_ADDRESS VolatileVariableBase
;
52 EFI_PHYSICAL_ADDRESS NonVolatileVariableBase
;
53 EFI_LOCK VariableServicesLock
;
54 UINT32 ReentrantState
;
58 VARIABLE_GLOBAL VariableGlobal
;
59 UINTN VolatileLastVariableOffset
;
60 UINTN NonVolatileLastVariableOffset
;
62 } VARIABLE_MODULE_GLOBAL
;
70 } VARIABLE_CACHE_ENTRY
;
73 Writes a buffer to variable storage space, in the working block.
75 This function writes a buffer to variable storage space into firmware
76 volume block device. The destination is specified by parameter
77 VariableBase. Fault Tolerant Write protocol is used for writing.
79 @param VariableBase Base address of variable to write
80 @param Buffer Point to the data buffer
81 @param BufferSize The number of bytes of the data Buffer
83 @retval EFI_SUCCESS The function completed successfully
84 @retval EFI_NOT_FOUND Fail to locate Fault Tolerant Write protocol
85 @retval EFI_ABORTED The function could not complete successfully
90 IN EFI_PHYSICAL_ADDRESS VariableBase
,