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

diff --git a/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c b/IntelFrameworkModulePkg/Universal/BdsDxe/BdsEntry.c
index 5486a5c5301d58e41682f1b8968c5d76fce345fa..f9b83a4499dbf87342a46efe883c1a1ce2502a8a 100644 (file)
--- 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\r
   to enter BDS phase.\r
 \r
-Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>\r
 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
@@ -486,6 +486,7 @@ BdsEntry (
   //\r
   // Fixup Tasble CRC after we updated Firmware Vendor and Revision\r
   //\r
+  gST->Hdr.CRC32 = 0;\r
   gBS->CalculateCrc32 ((VOID *)gST, sizeof(EFI_SYSTEM_TABLE), &gST->Hdr.CRC32);\r
 \r
   //\r