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UefiCpuPkg/SmmCpu: Add PcdSmmApPerfLogEnable control AP perf-logging

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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>
This commit is contained in:
Ray Ni
2023-06-07 16:35:46 +08:00
committed by mergify[bot]
parent 2d3974a351
commit a87f5fdb3d
5 changed files with 21 additions and 3 deletions
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1
UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf
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@@ -128,6 +128,7 @@
gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmProfileRingBuffer ## CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmFeatureControlMsrLock ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode ## CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdSmmApPerfLogEnable ## CONSUMES
[Pcd]
gUefiCpuPkgTokenSpaceGuid.PcdCpuMaxLogicalProcessorNumber ## SOMETIMES_CONSUMES