2. when variable store header is invalid status, we will return EFI_VOLUME_CORRUPTED to let code assert, which is helpful to find root cause quickly.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7804 6f19259b-4bc3-4df7-8a09-765794883524
2. move VariableFormat.h into GUID directory and change the “Signature” field of the VARIABLE_STORE_HEADER to gEfiVariableGuid value.
3. merging VARIABLE_INFO_ENTRY structure into the new Include/Guid/VariableFormat.h
4. change gEfiVariableInfoGuid into gEfiVariableGuid.
5. modify FDF files to use new guid value instead of the original signature.
6. all code related to signature is changed to use guid value.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7728 6f19259b-4bc3-4df7-8a09-765794883524
The patch enhanced variable services to support:
1) If adding variable does not execute completely, the state is in_deleted, the next time find variable should have to retrieve the in_deleted variable.
2) when Reclaiming the variable storage, the 1) variable should be considered.
[Impaction]:
This is backward-compatible update.
[Reference Info]:
9552, 8632
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4916 6f19259b-4bc3-4df7-8a09-765794883524
2) Add HEADER_VALID_ONLY state of variable, which represents only the header is valid and the data/name is stale. This may be caused by incomplete data updating. Adding the state helps to check whether the header is valid. If variable header is valid, then we must skip the data of variable with the valid size. If the header is invalid, we should only skip the header of variable.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4555 6f19259b-4bc3-4df7-8a09-765794883524
2) Check the integrity of Variable header. In original implementation, if not whole header is correct, then the variable will be treat as invalid. typically, if the NameSize has been programed but the DataSize not, then the variable storage would failed to set new variable.
3) Change the Variable Header Alignment from 1 to 4 bytes on x86. It avoids the DataSize or NameSize cross two blocks. For example, in original implementation, if the NameSize crosses two block, when the FLASH manipulation is interrupted after programed HSB of NameSize and prior to program LSB of NameSize on next block, then the invalid variable header will result in the Variable Storgae broken.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4538 6f19259b-4bc3-4df7-8a09-765794883524
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