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11 Commits

Author SHA1 Message Date
Star Zeng 2c4b18e095 MdeModulePkg: Add the alignment check for FTW spare area address and length, and add the check for PcdFlashNvStorageVariableSize <= PcdFlashNvStorageFtwSpareSize. 
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14463 6f19259b-4bc3-4df7-8a09-765794883524
 2013-07-11 08:15:47 +00:00
Star Zeng 3e02ebb2bb MdeModulePkg: Variable drivers robustly handle crashes during Reclaim(). 
PEI variable implementation checks only the variable header signature for validity. This does not seem robust if system crash occurred during previous Reclaim() operation. If the crash occurred while FTW was rewriting the variable FV, the signature could be valid even though the rest of the FV isn't valid.
Solution: Add a FaultTolerantWritePei driver to check and provide the FTW last write status, then PEI variable and early phase(before FTW protocol ready) of DXE variable can check the status and determine if all or partial variable data has been backed up in spare block, and then use the backed up data.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14454 6f19259b-4bc3-4df7-8a09-765794883524
 2013-07-03 09:08:40 +00:00
Star Zeng 0f199272f7 Use right LBA to get the backed up WorkSpace in spare block. 
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14398 6f19259b-4bc3-4df7-8a09-765794883524
 2013-06-07 02:38:00 +00:00
lzeng14 05cfd5f286 Initialize a local work space header to be used by IsValidWorkSpace() and InitWorkSpaceHeader() to avoid executing code(gBS->CalculateCrc32 ()) outside SMRAM while inside SMM. 
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14012 6f19259b-4bc3-4df7-8a09-765794883524
 2012-12-21 00:52:57 +00:00
lzeng14 d26c7e82f2 Fix the issue that FTW driver fail to reclaim WorkSpace. 
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Hengyan Tao <hengyan.tao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13732 6f19259b-4bc3-4df7-8a09-765794883524
 2012-09-14 06:54:35 +00:00
lzeng14 fe92f438ac The code line where judges if offset exceed the FTW work space boundary, in some special situations where there are so many records, the offset may happen to be just equal to FtwWorkSpaceSize. And then FtwHead will be updated to be outside of work space wrongly, and cause the system to hang in this driver. 
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Guo Dong <guo.dong@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13307 6f19259b-4bc3-4df7-8a09-765794883524
 2012-05-11 01:48:45 +00:00
gdong1 32732a333a Update inappropriate comments. 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11170 6f19259b-4bc3-4df7-8a09-765794883524
 2010-12-15 01:51:46 +00:00
gdong1 8a2d49964e Add SMM Variable implementation. 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11151 6f19259b-4bc3-4df7-8a09-765794883524
 2010-12-10 09:27:54 +00:00
hhtian e5eed7d364 Update the copyright notice format 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10418 6f19259b-4bc3-4df7-8a09-765794883524
 2010-04-24 09:33:45 +00:00
eric_tian 4601f37455 correct a wrong offset arithmetic, replace EFI_FAULT_TOLERANT_WRITE_HEADER with EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER. It will cause FTW write operation break. 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7931 6f19259b-4bc3-4df7-8a09-765794883524
 2009-03-24 08:25:01 +00:00
lgao4 85e923a528 Add full version FaultTolerantWrite Dxe driver. 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7787 6f19259b-4bc3-4df7-8a09-765794883524
 2009-03-04 01:05:31 +00:00