From d2b9b337374b3641226f833919323f016cb83314 Mon Sep 17 00:00:00 2001
From: ydong10 <ydong10@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 15 Jan 2013 06:38:45 +0000
Subject: [PATCH] Follow UEFI spec, clean the CRC32 field before calculate CRC
 for system table.

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ni Ruiyu <ruiyu.ni@intel.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14049 6f19259b-4bc3-4df7-8a09-765794883524
---
 IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c b/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c
index 5486a5c530..f9b83a4499 100644
--- a/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c
+++ b/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c
@@ -5,7 +5,7 @@
   After DxeCore finish DXE phase, gEfiBdsArchProtocolGuid->BdsEntry will be invoked
   to enter BDS phase.
 
-Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 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
 which accompanies this distribution.  The full text of the license may be found at
@@ -486,6 +486,7 @@ BdsEntry (
   //
   // Fixup Tasble CRC after we updated Firmware Vendor and Revision
   //
+  gST->Hdr.CRC32 = 0;
   gBS->CalculateCrc32 ((VOID *)gST, sizeof(EFI_SYSTEM_TABLE), &gST->Hdr.CRC32);
 
   //