From 05cfd5f286a695ab765231f279527b588e4c460d Mon Sep 17 00:00:00 2001
From: lzeng14 <lzeng14@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 21 Dec 2012 00:52:57 +0000
Subject: Initialize a local work space header to be used by IsValidWorkSpace()
 and InitWorkSpaceHeader() to avoid executing code(gBS->CalculateCrc32 ())
 outside SMRAM while inside SMM.

Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14012 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h   | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h')

diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h
index 39bc743e24..8deae8851a 100644
--- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h
+++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h
@@ -3,7 +3,7 @@
   The internal header file includes the common header files, defines
   internal structure and functions used by FtwLite module.
 
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2012, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -20,6 +20,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <PiDxe.h>
 
 #include <Guid/SystemNvDataGuid.h>
+#include <Guid/ZeroGuid.h>
 #include <Protocol/FaultTolerantWrite.h>
 #include <Protocol/FirmwareVolumeBlock.h>
 #include <Protocol/SwapAddressRange.h>
@@ -736,5 +737,16 @@ EFI_STATUS
 InitFtwProtocol (
   IN OUT EFI_FTW_DEVICE               *FtwDevice
   );
+
+/**
+  Initialize a local work space header.
+
+  Since Signature and WriteQueueSize have been known, Crc can be calculated out,
+  then the work space header will be fixed.
+**/
+VOID
+InitializeLocalWorkSpaceHeader (
+  VOID
+  );
  
 #endif
-- 
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