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| author | Ray Ni <ray.ni@intel.com> | 2023-06-07 16:35:46 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-06-21 04:37:17 +0000 |
| commit | a87f5fdb3d1a23b9ad2475007c58c0969863293f (patch) | |
| tree | fed2ba0f46403a63c427e96cba93c5b6c36fa608 /UefiCpuPkg/UefiCpuPkg.dec | |
| parent | 2d3974a35199bfafaf4b56cd908d99e456aed290 (diff) | |
| download | edk2-a87f5fdb3d1a23b9ad2475007c58c0969863293f.zip edk2-a87f5fdb3d1a23b9ad2475007c58c0969863293f.tar.gz edk2-a87f5fdb3d1a23b9ad2475007c58c0969863293f.tar.bz2 | |
UefiCpuPkg/SmmCpu: Add PcdSmmApPerfLogEnable control AP perf-logging
When a platform has lots of CPU cores/threads, perf-logging on every
AP produces lots of records. When this multiplies with number of SMIs
during post, the records are even more.
So, this patch adds a new PCD PcdSmmApPerfLogEnable (default TRUE)
to allow platform to turn off perf-logging on APs.
Signed-off-by: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Diffstat (limited to 'UefiCpuPkg/UefiCpuPkg.dec')
| -rw-r--r-- | UefiCpuPkg/UefiCpuPkg.dec | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec index d31c3b1..5b0ac64 100644 --- a/UefiCpuPkg/UefiCpuPkg.dec +++ b/UefiCpuPkg/UefiCpuPkg.dec @@ -175,6 +175,12 @@ # @Prompt Support SmmFeatureControl.
gUefiCpuPkgTokenSpaceGuid.PcdSmmFeatureControlEnable|TRUE|BOOLEAN|0x32132110
+ ## Indicates if SMM perf logging in APs will be enabled.<BR><BR>
+ # TRUE - SMM perf logging in APs will be enabled.<BR>
+ # FALSE - SMM perf logging in APs will not be enabled.<BR>
+ # @Prompt Enable SMM perf logging in APs.
+ gUefiCpuPkgTokenSpaceGuid.PcdSmmApPerfLogEnable|TRUE|BOOLEAN|0x32132114
+
[PcdsFixedAtBuild]
## List of exception vectors which need switching stack.
# This PCD will only take into effect if PcdCpuStackGuard is enabled.
|