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Add core FFS3 support, DxeCore.

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Signed-off-by: lzeng14
Reviewed-by: lgao4

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12584 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lzeng14
2011-10-27 09:23:19 +00:00
parent 890e54170e
commit 6c85d16217
7 changed files with 150 additions and 56 deletions
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14
MdeModulePkg/Core/Dxe/FwVol/Ffs.c
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@@ -133,7 +133,11 @@ VerifyHeaderChecksum (
{
UINT8 HeaderChecksum;
HeaderChecksum = CalculateSum8 ((UINT8 *) FfsHeader, sizeof (EFI_FFS_FILE_HEADER));
if (IS_FFS_FILE2 (FfsHeader)) {
HeaderChecksum = CalculateSum8 ((UINT8 *) FfsHeader, sizeof (EFI_FFS_FILE_HEADER2));
} else {
HeaderChecksum = CalculateSum8 ((UINT8 *) FfsHeader, sizeof (EFI_FFS_FILE_HEADER));
}
HeaderChecksum = (UINT8) (HeaderChecksum - FfsHeader->State - FfsHeader->IntegrityCheck.Checksum.File);
if (HeaderChecksum == 0) {
@@ -202,7 +206,6 @@ IsValidFfsFile (
{
EFI_FFS_FILE_STATE FileState;
UINT8 DataCheckSum;
UINT32 FileLength;
FileState = GetFileState (ErasePolarity, FfsHeader);
switch (FileState) {
@@ -211,9 +214,12 @@ IsValidFfsFile (
case EFI_FILE_DATA_VALID:
case EFI_FILE_MARKED_FOR_UPDATE:
DataCheckSum = FFS_FIXED_CHECKSUM;
FileLength = *(UINT32 *)(FfsHeader->Size) & 0x00FFFFFF;
if ((FfsHeader->Attributes & FFS_ATTRIB_CHECKSUM) == FFS_ATTRIB_CHECKSUM) {
DataCheckSum = CalculateCheckSum8 ((CONST UINT8 *)FfsHeader + sizeof(EFI_FFS_FILE_HEADER), FileLength - sizeof(EFI_FFS_FILE_HEADER));
if (IS_FFS_FILE2 (FfsHeader)) {
DataCheckSum = CalculateCheckSum8 ((CONST UINT8 *) FfsHeader + sizeof (EFI_FFS_FILE_HEADER2), FFS_FILE2_SIZE (FfsHeader) - sizeof(EFI_FFS_FILE_HEADER2));
} else {
DataCheckSum = CalculateCheckSum8 ((CONST UINT8 *) FfsHeader + sizeof (EFI_FFS_FILE_HEADER), FFS_FILE_SIZE (FfsHeader) - sizeof(EFI_FFS_FILE_HEADER));
}
}
if (FfsHeader->IntegrityCheck.Checksum.File == DataCheckSum) {
return TRUE;