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UefiCpuPkg/CpuMpPei: Register callback on End Of Pei PPI

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Add CpuMpEndOfPeiCallback () to restore wakeup buffer data on S3 path and flag
flag wakeup buffer to be un-used type on normal boot path. Set one EndOfPei
flag save/restore wakeup buffer when wakeup APs every time.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18014 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan
2015-07-15 03:46:13 +00:00
committed by vanjeff
parent fcc82734bf
commit 8f7b315b1c
4 changed files with 177 additions and 0 deletions
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43
UefiCpuPkg/CpuMpPei/CpuMpPei.h
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@@ -20,6 +20,7 @@
#include <Ppi/MpServices.h>
#include <Ppi/SecPlatformInformation.h>
#include <Ppi/SecPlatformInformation2.h>
#include <Ppi/EndOfPeiPhase.h>
#include <Register/LocalApic.h>
@@ -133,6 +134,7 @@ struct _PEI_CPU_MP_DATA {
UINTN ApFunction;
UINTN ApFunctionArgument;
volatile UINT32 FinishedCount;
BOOLEAN EndOfPeiFlag;
BOOLEAN InitFlag;
CPU_EXCHANGE_ROLE_INFO BSPInfo;
CPU_EXCHANGE_ROLE_INFO APInfo;
@@ -176,6 +178,47 @@ AsmCliHltLoop (
VOID
);
/**
Get available system memory below 1MB by specified size.
@param PeiCpuMpData Pointer to PEI CPU MP Data
**/
VOID
BackupAndPrepareWakeupBuffer(
IN PEI_CPU_MP_DATA *PeiCpuMpData
);
/**
Restore wakeup buffer data.
@param PeiCpuMpData Pointer to PEI CPU MP Data
**/
VOID
RestoreWakeupBuffer(
IN PEI_CPU_MP_DATA *PeiCpuMpData
);
/**
Notify function on End Of Pei PPI.
On S3 boot, this function will restore wakeup buffer data.
On normal boot, this function will flag wakeup buffer to be un-used type.
@param PeiServices The pointer to the PEI Services Table.
@param NotifyDescriptor Address of the notification descriptor data structure.
@param Ppi Address of the PPI that was installed.
@retval EFI_SUCCESS When everything is OK.
**/
EFI_STATUS
EFIAPI
CpuMpEndOfPeiCallback (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
);
/**
This function will be called by BSP to wakeup AP.