Remove PeRemove PeiPeCoffLoader.h and gPeiPeCoffLoaderGuid, and Add PeCoffExtraAction...

[mirror_edk2.git] / MdeModulePkg / Include / Guid / SystemNvDataGuid.h

diff --git a/MdeModulePkg/Include/Guid/SystemNvDataGuid.h b/MdeModulePkg/Include/Guid/SystemNvDataGuid.h
index 137ed230a1921651e93b185c363974fe2a5ea527..048ea651da49140b8a2ceaab62f18d4ba999193e 100644 (file)
--- a/MdeModulePkg/Include/Guid/SystemNvDataGuid.h
+++ b/MdeModulePkg/Include/Guid/SystemNvDataGuid.h
@@ -1,8 +1,10 @@
-/** @file\r
-  This file defines GUIDs used for System Non Volatile HOB entries in the HOB list,\r
-  and FV Guids that carrying the System specific information.\r
+/** @file  \r
+  This file defines NvDataFv GUID and FTW working block structure header.\r
+  This guid can be used as FileSystemGuid in EFI_FIRMWARE_VOLUME_HEADER if \r
+  this FV image contains NV data, such as NV variable data.\r
+  This guid can also be used as the signature of FTW working block header.\r
 \r
-Copyright (c) 2006 - 2008, Intel Corporation                                                         \r
+Copyright (c) 2006 - 2009, Intel Corporation                                                         \r
 All rights reserved. This program and the accompanying materials                          \r
 are licensed and made available under the terms and conditions of the BSD License         \r
 which accompanies this distribution.  The full text of the license may be found at        \r
@@ -19,20 +21,42 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define EFI_SYSTEM_NV_DATA_FV_GUID \\r
   {0xfff12b8d, 0x7696, 0x4c8b, {0xa9, 0x85, 0x27, 0x47, 0x7, 0x5b, 0x4f, 0x50} }\r
 \r
-#define EFI_SYSTEM_NV_DATA_HOB_GUID \\r
-  {0xd6e5092d, 0xc7b2, 0x4872, {0xaf, 0x66, 0xfd, 0xc0, 0xe6, 0xf9, 0x5e, 0x78} }\r
+///\r
+/// NvDataFv GUID used as the signature of FTW working block header.\r
+///\r
+extern EFI_GUID gEfiSystemNvDataFvGuid;\r
+\r
+#define WORKING_BLOCK_VALID   0x1\r
+#define WORKING_BLOCK_INVALID 0x2\r
 \r
+///\r
+/// EDKII Fault tolerant working block header\r
+/// The header is immediately followed by the write queue data.\r
+///\r
 typedef struct {\r
-  EFI_GUID                  SystemNvDataHobGuid;\r
-  EFI_GUID                  SystemNvDataFvGuid;\r
-  EFI_LBA                   StartLba;    \r
-  UINTN                     StartLbaOffset;\r
-  EFI_LBA                   EndLba;    \r
-  UINTN                     EndLbaOffset;\r
-  UINT32                    DataTypeSignature;\r
-} NV_SYSTEM_DATA_GUID_TYPE;\r
-\r
-extern EFI_GUID gEfiSystemNvDataHobGuid;\r
-extern EFI_GUID gEfiSystemNvDataFvGuid;\r
+  ///\r
+  /// System Non Volatile FV Guid\r
+  ///\r
+  EFI_GUID  Signature;\r
+  ///\r
+  /// 32bit CRC caculated for this header\r
+  ///\r
+  UINT32    Crc;\r
+  ///\r
+  /// Working block valid bit\r
+  ///\r
+  UINT8     WorkingBlockValid : 1;\r
+  UINT8     WorkingBlockInvalid : 1;\r
+  UINT8     Reserved : 6;\r
+  UINT8     Reserved3[3];\r
+  ///\r
+  /// Total size of the following write queue range.\r
+  ///\r
+  UINT64    WriteQueueSize;\r
+  ///\r
+  /// Write Queue data\r
+  /// UINT8                WriteQueue[WriteQueueSize];\r
+  ///\r
+} EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER;\r
 \r
 #endif\r