diff options
Diffstat (limited to 'UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c')
| -rw-r--r-- | UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c b/UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c index 98490c6777..cf34ad4d1f 100644 --- a/UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c +++ b/UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c @@ -191,6 +191,17 @@ ProcTraceInitialize ( MSR_IA32_RTIT_OUTPUT_MASK_PTRS_REGISTER OutputMaskPtrsReg;
RTIT_TOPA_TABLE_ENTRY *TopaEntryPtr;
+ //
+ // The scope of the MSR_IA32_RTIT_* is core for below processor type, only program
+ // MSR_IA32_RTIT_* for thread 0 in each core.
+ //
+ if (IS_GOLDMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
+ IS_GOLDMONT_PLUS_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {
+ if (CpuInfo->ProcessorInfo.Location.Thread != 0) {
+ return RETURN_SUCCESS;
+ }
+ }
+
ProcTraceData = (PROC_TRACE_DATA *) ConfigData;
ASSERT (ProcTraceData != NULL);
|