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-rw-r--r--IntelFspPkg/Library/BaseCacheLib/CacheLib.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/IntelFspPkg/Library/BaseCacheLib/CacheLib.c b/IntelFspPkg/Library/BaseCacheLib/CacheLib.c
index 5c7796239..40d404dd6 100644
--- a/IntelFspPkg/Library/BaseCacheLib/CacheLib.c
+++ b/IntelFspPkg/Library/BaseCacheLib/CacheLib.c
@@ -381,7 +381,7 @@ ProgramFixedMtrr (
*Len -= mFixedMtrrTable[MsrNum].Length;
*Base += mFixedMtrrTable[MsrNum].Length;
}
- TempQword = AsmReadMsr64 (mFixedMtrrTable[MsrNum].Msr) & (~ClearMask | OrMask);
+ TempQword = (AsmReadMsr64 (mFixedMtrrTable[MsrNum].Msr) & (~ClearMask)) | OrMask;
AsmWriteMsr64 (mFixedMtrrTable[MsrNum].Msr, TempQword);
return EFI_SUCCESS;