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| author | Jeff Fan <jeff.fan@intel.com> | 2016-04-05 14:28:49 +0800 |
|---|---|---|
| committer | Michael Kinney <michael.d.kinney@intel.com> | 2016-05-16 10:40:16 -0700 |
| commit | 4b1f9ac19de8775b484c2b16d3050cd279249477 (patch) | |
| tree | cbb1c6605003df7cc167a3d180b7a811ec88693c /UefiCpuPkg/UefiCpuPkg.dec | |
| parent | 7b1fe7acdca15be49a9421156b799ed7394f7bac (diff) | |
| download | edk2-4b1f9ac19de8775b484c2b16d3050cd279249477.tar.gz edk2-4b1f9ac19de8775b484c2b16d3050cd279249477.tar.bz2 edk2-4b1f9ac19de8775b484c2b16d3050cd279249477.zip | |
UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile: Fix BTS support check bug
SmmProfile feature depends on BTS feature to get the invoker IP (in SMM) from
last branch record. If this feature is not supported, SmmProfile cannot get the
invoker IP (in SMM). Per IA-32 Architectures Software Developer's Manual, BTS
feature is detected by IA32_MISC_ENABLE. If BIT11 of IA32_MISC_ENABLE is set,
BTS is not supported. But current implementation check BIT11 opposite. Also, BTS
feature does not depends on PEBS feature if supported or not.
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Shifflett, Joseph <joseph.shifflett@hpe.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Reported-by: Shifflett, Joseph <joseph.shifflett@hpe.com>
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Shifflett, Joseph <joseph.shifflett@hpe.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'UefiCpuPkg/UefiCpuPkg.dec')
0 files changed, 0 insertions, 0 deletions