diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Include/EfiWorkingBlockHeader.h')
-rw-r--r-- | EdkCompatibilityPkg/Foundation/Include/EfiWorkingBlockHeader.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Include/EfiWorkingBlockHeader.h b/EdkCompatibilityPkg/Foundation/Include/EfiWorkingBlockHeader.h new file mode 100644 index 0000000000..a67d041218 --- /dev/null +++ b/EdkCompatibilityPkg/Foundation/Include/EfiWorkingBlockHeader.h @@ -0,0 +1,47 @@ +/*++
+
+Copyright (c) 2004 - 2007, 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.
+
+Module Name:
+
+ EfiWorkingBlockHeader.h
+
+Abstract:
+
+ 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.
+
+--*/
+
+#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
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