diff options
Diffstat (limited to 'BaseTools/Source/C/Include/Common/WorkingBlockHeader.h')
-rw-r--r-- | BaseTools/Source/C/Include/Common/WorkingBlockHeader.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/BaseTools/Source/C/Include/Common/WorkingBlockHeader.h b/BaseTools/Source/C/Include/Common/WorkingBlockHeader.h new file mode 100644 index 0000000000..98f8527a7b --- /dev/null +++ b/BaseTools/Source/C/Include/Common/WorkingBlockHeader.h @@ -0,0 +1,43 @@ +/** @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 - 2008, Intel Corporation. All rights reserved.
+
+ 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.
+
+ File Name: WorkingBlockHeader.h
+
+**/
+
+#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];
+ UINT32 WriteQueueSize;
+ //
+ // UINT8 WriteQueue[WriteQueueSize];
+ //
+} EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER;
+
+#endif
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