1 files changed, 64 insertions, 9 deletions
diff --git a/MdeModulePkg/Include/Guid/SystemNvDataGuid.h b/MdeModulePkg/Include/Guid/SystemNvDataGuid.h
index 4e21888356..40446bcc10 100644
--- a/MdeModulePkg/Include/Guid/SystemNvDataGuid.h
+++ b/MdeModulePkg/Include/Guid/SystemNvDataGuid.h
@@ -1,10 +1,10 @@
 /** @file  
-  This file defines NvDataFv GUID and FTW working block structure header.
-  This guid can be used as FileSystemGuid in EFI_FIRMWARE_VOLUME_HEADER if 
+  This file defines NvDataFv GUID and FTW working block structures.
+  The NvDataFv GUID can be used as FileSystemGuid in EFI_FIRMWARE_VOLUME_HEADER if 
   this FV image contains NV data, such as NV variable data.
-  This guid can also be used as the signature of FTW working block header.
+  This file also defines WorkingBlockSignature GUID for FTW working block signature.
 
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2013, 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 that accompanies this distribution.  
 The full text of the license may be found at
@@ -21,10 +21,11 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define EFI_SYSTEM_NV_DATA_FV_GUID \
   {0xfff12b8d, 0x7696, 0x4c8b, {0xa9, 0x85, 0x27, 0x47, 0x7, 0x5b, 0x4f, 0x50} }
 
-///
-/// An NvDataFv GUID used as the signature of FTW working block header.
-///
+#define EDKII_WORKING_BLOCK_SIGNATURE_GUID \
+  {0x9e58292b, 0x7c68, 0x497d, {0xa0, 0xce, 0x65,  0x0, 0xfd, 0x9f, 0x1b, 0x95} }
+
 extern EFI_GUID gEfiSystemNvDataFvGuid;
+extern EFI_GUID gEdkiiWorkingBlockSignatureGuid;
 
 #define WORKING_BLOCK_VALID   0x1
 #define WORKING_BLOCK_INVALID 0x2
@@ -35,7 +36,9 @@ extern EFI_GUID gEfiSystemNvDataFvGuid;
 ///
 typedef struct {
   ///
-  /// System Non Volatile FV Guid.
+  /// FTW working block signature.
+  /// Its value has be updated from gEfiSystemNvDataFvGuid to gEdkiiWorkingBlockSignatureGuid,
+  /// because its write queue data format has been updated to support the crossing archs.
   ///
   EFI_GUID  Signature;
   ///
@@ -55,8 +58,60 @@ typedef struct {
   UINT64    WriteQueueSize;
   ///
   /// Write Queue data.
-  /// UINT8  WriteQueue[WriteQueueSize];
+  ///
+  /// EFI_FAULT_TOLERANT_WRITE_HEADER FtwHeader;
+  /// EFI_FAULT_TOLERANT_WRITE_RECORD FtwRecord[FtwHeader.NumberOfWrites]
+  /// EFI_FAULT_TOLERANT_WRITE_HEADER FtwHeader2;
+  /// EFI_FAULT_TOLERANT_WRITE_RECORD FtwRecord2[FtwHeader2.NumberOfWrites]
+  /// ...
   ///
 } EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER;
 
+#define FTW_VALID_STATE     0
+#define FTW_INVALID_STATE   1
+
+//
+// EFI Fault tolerant block update write queue entry.
+//
+typedef struct {
+  UINT8     HeaderAllocated : 1;
+  UINT8     WritesAllocated : 1;
+  UINT8     Complete : 1;
+  UINT8     Reserved : 5;
+  EFI_GUID  CallerId;
+  UINT64    NumberOfWrites;
+  UINT64    PrivateDataSize;
+} EFI_FAULT_TOLERANT_WRITE_HEADER;
+
+//
+// EFI Fault tolerant block update write queue record.
+//
+typedef struct {
+  UINT8   BootBlockUpdate : 1;
+  UINT8   SpareComplete : 1;
+  UINT8   DestinationComplete : 1;
+  UINT8   Reserved : 5;
+  EFI_LBA Lba;
+  UINT64  Offset;
+  UINT64  Length;
+  //
+  // Relative offset to spare block.
+  //
+  INT64   RelativeOffset;
+  //
+  // UINT8    PrivateData[PrivateDataSize]
+  //
+} EFI_FAULT_TOLERANT_WRITE_RECORD;
+
+#define FTW_RECORD_SIZE(PrivateDataSize)  (sizeof (EFI_FAULT_TOLERANT_WRITE_RECORD) + (UINTN) PrivateDataSize)
+
+#define FTW_RECORD_TOTAL_SIZE(NumberOfWrites, PrivateDataSize) \
+    ((UINTN) (NumberOfWrites) * (sizeof (EFI_FAULT_TOLERANT_WRITE_RECORD) + (UINTN) PrivateDataSize))
+
+#define FTW_WRITE_TOTAL_SIZE(NumberOfWrites, PrivateDataSize) \
+    ( \
+      sizeof (EFI_FAULT_TOLERANT_WRITE_HEADER) + (UINTN) (NumberOfWrites) * \
+      (sizeof (EFI_FAULT_TOLERANT_WRITE_RECORD) + (UINTN) PrivateDataSize) \
+    )
+
 #endif