commit cf1eb6e6f85952b0fad82b937054f611cf148d57
author Jeff Fan <jeff.fan@intel.com> Thu Jul 10 02:12:27 2014 +0000
committer vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> Thu Jul 10 02:12:27 2014 +0000
tree a73cb236c7dd69bd1997f0eb82bc35c269746227
parent 5039b444fe8c2b8757de53b009d9f4c6bb0f9302

Introduce one PCD PcdCpuInitIpiDelayInMicroSeconds to specify the delay value after sending out INIT IPI instead of hard code 10 MicroSeconds.
Its default value is 10 millisecond per IA32 manual.
Platform could customize this PCD value for performance requirement.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Kinney, Michael <michael.d.kinney@intel.com>
 

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15650 6f19259b-4bc3-4df7-8a09-765794883524

UefiCpuPkg/UefiCpuPkg.dec

diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec
index 1e11540..53f1726 100644
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -43,4 +43,6 @@
 

 [PcdsFixedAtBuild, PcdsPatchableInModule]

   gUefiCpuPkgTokenSpaceGuid.PcdCpuLocalApicBaseAddress|0xfee00000|UINT32|0x00000001

+  ## Specifies delay value in microseconds after sending out an INIT IPI

+  gUefiCpuPkgTokenSpaceGuid.PcdCpuInitIpiDelayInMicroSeconds|10000|UINT32|0x30000002