diff options
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c')
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c index 8ecc5415a3..f9cea55d9d 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c @@ -934,8 +934,9 @@ CheckFeatureSupported ( IN OUT VOID *Buffer
)
{
- UINT32 RegEax;
- UINT32 RegEdx;
+ UINT32 RegEax;
+ UINT32 RegEdx;
+ MSR_IA32_MISC_ENABLE_REGISTER MiscEnableMsr;
if (mXdSupported) {
AsmCpuid (CPUID_EXTENDED_FUNCTION, &RegEax, NULL, NULL, NULL);
@@ -966,9 +967,10 @@ CheckFeatureSupported ( // BTINT bits in the MSR_DEBUGCTLA MSR.
// 2. The IA32_DS_AREA MSR can be programmed to point to the DS save area.
//
- if (AsmMsrBitFieldRead64 (MSR_IA32_MISC_ENABLE, 11, 11) == 1) {
+ MiscEnableMsr.Uint64 = AsmReadMsr64 (MSR_IA32_MISC_ENABLE);
+ if (MiscEnableMsr.Bits.BTS == 1) {
//
- // BTS facilities is not supported if MSR_IA32_MISC_ENABLE BIT11 is set.
+ // BTS facilities is not supported if MSR_IA32_MISC_ENABLE.BTS bit is set.
//
mBtsSupported = FALSE;
}
|