X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=UefiCpuPkg%2FLibrary%2FCpuCommonFeaturesLib%2FC1e.c;h=1beaebe69c8baea5507ca5dc0d5f8b300a3d38e9;hp=47116355a8ff392d0277a18f49d3f3cf8a5f3382;hb=d28daaddb3e732468e930a809d3d3943a5de9558;hpb=38381e18bf08dadad91627949996d106612f4753

diff --git a/UefiCpuPkg/Library/CpuCommonFeaturesLib/C1e.c b/UefiCpuPkg/Library/CpuCommonFeaturesLib/C1e.c
index 47116355a8..1beaebe69c 100644
--- a/UefiCpuPkg/Library/CpuCommonFeaturesLib/C1e.c
+++ b/UefiCpuPkg/Library/CpuCommonFeaturesLib/C1e.c
@@ -67,6 +67,14 @@ C1eInitialize (
   IN BOOLEAN                           State
   )
 {
+  //
+  // The scope of C1EEnable bit in the MSR_NEHALEM_POWER_CTL is Package, only program
+  // MSR_FEATURE_CONFIG for thread 0 core 0 in each package.
+  //
+  if ((CpuInfo->ProcessorInfo.Location.Thread != 0) || (CpuInfo->ProcessorInfo.Location.Core != 0)) {
+  return RETURN_SUCCESS;
+  }
+
   CPU_REGISTER_TABLE_WRITE_FIELD (
     ProcessorNumber,
     Msr,