/** @file | |
Defines data structure that is the headers found at the runtime | |
updatable firmware volumes, such as the FileSystemGuid of the | |
working block, the header structure of the variable block, FTW | |
working block, or event log block. | |
Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> | |
This program and the accompanying materials are licensed and made available | |
under the terms and conditions of the BSD License which accompanies this | |
distribution. The full text of the license may be found at | |
http://opensource.org/licenses/bsd-license.php | |
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
**/ | |
#ifndef __EFI_WORKING_BLOCK_HEADER_H__ | |
#define __EFI_WORKING_BLOCK_HEADER_H__ | |
// | |
// EFI Fault tolerant working block header | |
// The header is immediately followed by the write queue. | |
// | |
typedef struct { | |
EFI_GUID Signature; | |
UINT32 Crc; | |
UINT8 WorkingBlockValid : 1; | |
UINT8 WorkingBlockInvalid : 1; | |
#define WORKING_BLOCK_VALID 0x1 | |
#define WORKING_BLOCK_INVALID 0x2 | |
UINT8 Reserved : 6; | |
UINT8 Reserved3[3]; | |
UINT64 WriteQueueSize; | |
// | |
// UINT8 WriteQueue[WriteQueueSize]; | |
// | |
} EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER; | |
#endif |