Virtualization
/
edk2
mirror of https://gitlab.com/qemu-project/edk2.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

UefiCpuPkg/PiSmmCpuDxe: use MpService2Ppi to wakeup AP in s3 

Use MpService2Ppi to wakeup AP in s3 boot flow during initializing
CPU. If mSmmS3ResumeState->MpService2Ppi is not 0, then BSP will
use MpService2Ppi->StartupAllCPUs to do CPU initialization for both
BSP and AP instead of only sending InitSipiSipi for AP.

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>
This commit is contained in:
Dun Tan 2023-07-26 17:36:02 +08:00 committed by mergify[bot]
parent cf82c09bac
commit 2ce5ae43c2
1 changed files with 35 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c
View File

@ -7,6 +7,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "PiSmmCpuDxeSmm.h"
#include <PiPei.h>
#include <Ppi/MpServices2.h>
#pragma pack(1)
typedef struct {
@ -594,6 +596,8 @@ InitializeCpuAfterRebase (
UINT8 Stack[128];
SetRegister (FALSE);
if (mSmmS3ResumeState->MpService2Ppi == 0) {
if (IsBsp) {
while (mNumberToFinish > 0) {
CpuPause ();
@ -608,6 +612,7 @@ InitializeCpuAfterRebase (
TransferApToSafeState ((UINTN)mApHltLoopCode, TopOfStack, (UINTN)&mNumberToFinish);
}
}
}
/**
Cpu initialization procedure.
@ -788,6 +793,7 @@ SmmRestoreCpu (
IA32_DESCRIPTOR X64Idtr;
IA32_IDT_GATE_DESCRIPTOR IdtEntryTable[EXCEPTION_VECTOR_NUMBER];
EFI_STATUS Status;
EDKII_PEI_MP_SERVICES2_PPI *Mp2ServicePpi;
DEBUG ((DEBUG_INFO, "SmmRestoreCpu()\n"));
@ -852,14 +858,20 @@ SmmRestoreCpu (
//
mInitApsAfterSmmBaseReloc = FALSE;
if (mSmmS3ResumeState->MpService2Ppi != 0) {
Mp2ServicePpi = (EDKII_PEI_MP_SERVICES2_PPI *)(UINTN)mSmmS3ResumeState->MpService2Ppi;
Mp2ServicePpi->StartupAllCPUs (Mp2ServicePpi, InitializeCpuProcedure, 0, NULL);
} else {
PrepareApStartupVector (mAcpiCpuData.StartupVector);
//
// Send INIT IPI - SIPI to all APs
//
SendInitSipiSipiAllExcludingSelf ((UINT32)mAcpiCpuData.StartupVector);
}
InitializeCpuProcedure (NULL);
}
} else {
InitializeCpuProcedure (NULL);
}
//
// Set a flag to restore SMM configuration in S3 path.