The ATA alignment_logic_in_phy_blocks field doesn’t directly report the lowest aligne...

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10265 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c
index 8df584506e0028431bcd5fe2af8a267458d060d7..d11ebd9df03ad297f117a6c3cd8ea07d00ddc552 100644 (file)
--- a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c
+++ b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c
@@ -304,7 +304,8 @@ IdentifyAtaDevice (
       // Check lowest alignment of logical blocks within physical block\r
       //\r
       if ((IdentifyData->alignment_logic_in_phy_blocks & (BIT14 | BIT15)) == BIT14) {\r
-        BlockMedia->LowestAlignedLba = (EFI_LBA) (IdentifyData->alignment_logic_in_phy_blocks & 0x3fff);\r
+        BlockMedia->LowestAlignedLba = (EFI_LBA) (BlockMedia->LogicalBlocksPerPhysicalBlock - (IdentifyData->alignment_logic_in_phy_blocks & 0x3fff)) %\r
+          BlockMedia->LogicalBlocksPerPhysicalBlock;\r
       }\r
     }\r
     //\r