UefiCpuPkg/MpInitLib: Save CPU MP Data pointer

In PeiMpInitLib, save CPU MP Data pointer into one local Guided HOB.
In DxeMpInitLib, save CPU MP Data pointer into one global variable.

Add helper functions GetCpuMpData()/SaveCpuMpData().

v5:
  1. Move CPU_INIT_MP_LIB_HOB_GUID from MpLib.c to MpLib.h to make
     all C files visible.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Michael Kinney <michael.d.kinney@intel.com>
This commit is contained in:
Jeff Fan
2016-07-21 16:08:12 +08:00
parent 94f63c765f
commit 93ca4c0fd7
4 changed files with 174 additions and 0 deletions

View File

@ -13,6 +13,48 @@
**/
#include "MpLib.h"
CPU_MP_DATA *mCpuMpData = NULL;
/**
Get the pointer to CPU MP Data structure.
@return The pointer to CPU MP Data structure.
**/
CPU_MP_DATA *
GetCpuMpData (
VOID
)
{
ASSERT (mCpuMpData != NULL);
return mCpuMpData;
}
/**
Save the pointer to CPU MP Data structure.
@param[in] CpuMpData The pointer to CPU MP Data structure will be saved.
**/
VOID
SaveCpuMpData (
IN CPU_MP_DATA *CpuMpData
)
{
mCpuMpData = CpuMpData;
}
/**
Initialize global data for MP support.
@param[in] CpuMpData The pointer to CPU MP Data structure.
**/
VOID
InitMpGlobalData (
IN CPU_MP_DATA *CpuMpData
)
{
SaveCpuMpData (CpuMpData);
}
/**
This service executes a caller provided function on all enabled APs.