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Add the fixed checksum value 0xAA of FFS header according to the latest PI spec. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10124 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lgao4 2010-02-28 23:53:41 +00:00
parent 52302d4dee
commit 2bf0d83532
1 changed files with 8 additions and 2 deletions
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10
MdePkg/Include/Pi/PiFirmwareFile.h
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@ -1,7 +1,7 @@
/** @file /** @file
The firmware file related definitions in PI. The firmware file related definitions in PI.
Copyright (c) 2006 - 2009, Intel Corporation Copyright (c) 2006 - 2010, Intel Corporation
All rights reserved. This program and the accompanying materials All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License 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 which accompanies this distribution. The full text of the license may be found at
@ -38,7 +38,7 @@ typedef union {
/// and the checksum is calculated such that the entire file sums to zero. /// and the checksum is calculated such that the entire file sums to zero.
/// If the FFS_ATTRIB_CHECKSUM bit of the Attributes field is cleared to zero, /// If the FFS_ATTRIB_CHECKSUM bit of the Attributes field is cleared to zero,
/// the IntegrityCheck.Checksum.File field must be initialized with a value of /// the IntegrityCheck.Checksum.File field must be initialized with a value of
/// 0x55AA. The IntegrityCheck.Checksum.File field is valid any time the /// 0xAA. The IntegrityCheck.Checksum.File field is valid any time the
/// EFI_FILE_DATA_VALID bit is set in the State field. /// EFI_FILE_DATA_VALID bit is set in the State field.
/// ///
UINT8 File; UINT8 File;
@ -49,6 +49,12 @@ typedef union {
UINT16 Checksum16; UINT16 Checksum16;
} EFI_FFS_INTEGRITY_CHECK; } EFI_FFS_INTEGRITY_CHECK;
///
/// FFS_FIXED_CHECKSUM is the checksum value used when the
/// FFS_ATTRIB_CHECKSUM attribute bit is clear
///
#define FFS_FIXED_CHECKSUM 0xAA
typedef UINT8 EFI_FV_FILETYPE; typedef UINT8 EFI_FV_FILETYPE;
typedef UINT8 EFI_FFS_FILE_ATTRIBUTES; typedef UINT8 EFI_FFS_FILE_ATTRIBUTES;
typedef UINT8 EFI_FFS_FILE_STATE; typedef UINT8 EFI_FFS_FILE_STATE;