UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile: Fix BTS support check bug

[mirror_edk2.git] / UefiCpuPkg / PiSmmCpuDxeSmm / SmmProfile.c

diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c
index 71fff0e5b0b628df2b6d26e8436d2e48840e80a7..0b7502042578e20ec0275fe0ab53f0bdbcf480a3 100644 (file)
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.c
@@ -966,10 +966,9 @@ CheckFeatureSupported (
       //    BTINT bits in the MSR_DEBUGCTLA MSR.\r
       // 2. The IA32_DS_AREA MSR can be programmed to point to the DS save area.\r
       //\r
-      if ((AsmMsrBitFieldRead64 (MSR_IA32_MISC_ENABLE, 11, 11) == 0) &&\r
-          (AsmMsrBitFieldRead64 (MSR_IA32_MISC_ENABLE, 12, 12) == 0)) {\r
+      if (AsmMsrBitFieldRead64 (MSR_IA32_MISC_ENABLE, 11, 11) == 1) {\r
         //\r
-        // BTS facilities is supported.\r
+        // BTS facilities is not supported if MSR_IA32_MISC_ENABLE BIT11 is set.\r
         //\r
         mBtsSupported = FALSE;\r
       }\r