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UefiCpuPkg: Update code to support enable ProcTrace only on BSP

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Update code to support enable ProcTrace only on BSP. Add a new
dynamic PCD to indicate if enable ProcTrace only on BSP. In
ProcTrace.c code, if this new PCD is true, only allocate buffer
and set CtrlReg.Bits.TraceEn to 1 for BSP.

Bugzila: https://bugzilla.tianocore.org/show_bug.cgi?id=4423
Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Xiao X Chen <xiao.x.chen@intel.com>
This commit is contained in:
Dun Tan
2023-04-25 12:47:05 +08:00
committed by mergify[bot]
parent 5a349b96b1
commit 61e2c83424
3 changed files with 124 additions and 70 deletions
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7
UefiCpuPkg/UefiCpuPkg.dec
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@@ -338,6 +338,13 @@
# @Prompt Current boot is a power-on reset.
gUefiCpuPkgTokenSpaceGuid.PcdIsPowerOnReset|FALSE|BOOLEAN|0x0000001B
## This PCD indicates whether CPU processor trace is enabled on BSP only when CPU processor trace is enabled.<BR><BR>
# This PCD is ignored if CPU processor trace is disabled.<BR><BR>
# TRUE - CPU processor trace is enabled on BSP only.<BR>
# FASLE - CPU processor trace is enabled on all CPU.<BR>
# @Prompt Enable CPU processor trace only on BSP.
gUefiCpuPkgTokenSpaceGuid.PcdCpuProcTraceBspOnly|FALSE|BOOLEAN|0x60000019
[PcdsFixedAtBuild.X64, PcdsPatchableInModule.X64, PcdsDynamic.X64, PcdsDynamicEx.X64]
## Indicate access to non-SMRAM memory is restricted to reserved, runtime and ACPI NVS type after SmmReadyToLock.
# MMIO access is always allowed regardless of the value of this PCD.