diff options
Diffstat (limited to 'UefiCpuPkg/Library/MtrrLib/MtrrLib.c')
| -rw-r--r-- | UefiCpuPkg/Library/MtrrLib/MtrrLib.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c index b80519ba6d..cbcc584f1f 100644 --- a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c +++ b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c @@ -124,11 +124,11 @@ GetVariableMtrrCountWorker ( VOID
)
{
- UINT32 VariableMtrrCount;
+ MSR_IA32_MTRRCAP_REGISTER MtrrCap;
- VariableMtrrCount = (UINT32)(AsmReadMsr64 (MTRR_LIB_IA32_MTRR_CAP) & MTRR_LIB_IA32_MTRR_CAP_VCNT_MASK);
- ASSERT (VariableMtrrCount <= MTRR_NUMBER_OF_VARIABLE_MTRR);
- return VariableMtrrCount;
+ MtrrCap.Uint64 = AsmReadMsr64 (MSR_IA32_MTRRCAP);
+ ASSERT (MtrrCap.Bits.VCNT <= MTRR_NUMBER_OF_VARIABLE_MTRR);
+ return MtrrCap.Bits.VCNT;
}
/**
|