| /** @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> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #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 |