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Diffstat (limited to 'QuarkSocPkg/QuarkNorthCluster/Library/MtrrLib/MtrrLib.c')
-rw-r--r--QuarkSocPkg/QuarkNorthCluster/Library/MtrrLib/MtrrLib.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/QuarkSocPkg/QuarkNorthCluster/Library/MtrrLib/MtrrLib.c b/QuarkSocPkg/QuarkNorthCluster/Library/MtrrLib/MtrrLib.c
index 58d8c0d4c4..2760427554 100644
--- a/QuarkSocPkg/QuarkNorthCluster/Library/MtrrLib/MtrrLib.c
+++ b/QuarkSocPkg/QuarkNorthCluster/Library/MtrrLib/MtrrLib.c
@@ -1036,13 +1036,12 @@ MtrrLibInitializeMtrrMask (
AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);
PhysicalAddressBits = (UINT8) RegEax;
-
- *MtrrValidBitsMask = LShiftU64 (1, PhysicalAddressBits) - 1;
- *MtrrValidAddressMask = *MtrrValidBitsMask & 0xfffffffffffff000ULL;
} else {
- *MtrrValidBitsMask = MTRR_LIB_MSR_VALID_MASK;
- *MtrrValidAddressMask = MTRR_LIB_CACHE_VALID_ADDRESS;
+ PhysicalAddressBits = 36;
}
+
+ *MtrrValidBitsMask = LShiftU64 (1, PhysicalAddressBits) - 1;
+ *MtrrValidAddressMask = *MtrrValidBitsMask & 0xfffffffffffff000ULL;
}