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UefiCpuPkg/CpuMpPei: Prepare for monitor buffer 

Get AP loop mode to prepare for the monitor buffer required for ApInMwaitLoop
and ApInRunLoop.

Contributed-under: TianoCore Contribution Agreement 1.0
Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Tested-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19344 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan 2015-12-18 03:25:02 +00:00 committed by vanjeff
parent 4de216c016
commit e001e11f90
2 changed files with 26 additions and 2 deletions
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25
UefiCpuPkg/CpuMpPei/CpuMpPei.c
View File

@ -589,6 +589,10 @@ PrepareAPStartupVector (
UINTN WakeupBuffer;
UINTN WakeupBufferSize;
MP_ASSEMBLY_ADDRESS_MAP AddressMap;
UINT8 ApLoopMode;
UINT16 MonitorFilterSize;
UINT8 *MonitorBuffer;
UINTN Index;
AsmGetAddressMap (&AddressMap);
WakeupBufferSize = AddressMap.RendezvousFunnelSize + sizeof (MP_CPU_EXCHANGE_INFO);
@ -597,11 +601,14 @@ PrepareAPStartupVector (
DEBUG ((EFI_D_INFO, "CpuMpPei: WakeupBuffer = 0x%x\n", WakeupBuffer));
//
// Allocate Pages for APs stack, CPU MP Data and backup buffer for wakeup buffer
// Allocate Pages for APs stack, CPU MP Data, backup buffer for wakeup buffer,
// and monitor buffer if required.
//
MaxCpuCount = PcdGet32(PcdCpuMaxLogicalProcessorNumber);
BufferSize = PcdGet32 (PcdCpuApStackSize) * MaxCpuCount + sizeof (PEI_CPU_MP_DATA)
+ WakeupBufferSize + sizeof (PEI_CPU_DATA) * MaxCpuCount;
ApLoopMode = GetApLoopMode (&MonitorFilterSize);
BufferSize += MonitorFilterSize * MaxCpuCount;
Status = PeiServicesAllocatePages (
EfiBootServicesData,
EFI_SIZE_TO_PAGES (BufferSize),
@ -627,7 +634,21 @@ PrepareAPStartupVector (
InitializeSpinLock(&PeiCpuMpData->MpLock);
SaveVolatileRegisters (&PeiCpuMpData->CpuData[0].VolatileRegisters);
CopyMem (&PeiCpuMpData->AddressMap, &AddressMap, sizeof (MP_ASSEMBLY_ADDRESS_MAP));
//
// Initialize AP loop mode
//
PeiCpuMpData->ApLoopMode = ApLoopMode;
DEBUG ((EFI_D_INFO, "AP Loop Mode is %d\n", PeiCpuMpData->ApLoopMode));
MonitorBuffer = (UINT8 *)(PeiCpuMpData->CpuData + MaxCpuCount);
if (PeiCpuMpData->ApLoopMode != ApInHltLoop) {
//
// Set up APs wakeup signal buffer
//
for (Index = 0; Index < MaxCpuCount; Index++) {
PeiCpuMpData->CpuData[Index].StartupApSignal =
(UINT32 *)(MonitorBuffer + MonitorFilterSize * Index);
}
}
//
// Backup original data and copy AP reset code in it
//

3
UefiCpuPkg/CpuMpPei/CpuMpPei.h
View File

@ -134,6 +134,7 @@ typedef struct {
} CPU_VOLATILE_REGISTERS;
typedef struct {
volatile UINT32 *StartupApSignal;
UINT32 ApicId;
EFI_HEALTH_FLAGS Health;
CPU_STATE State;
@ -163,6 +164,8 @@ struct _PEI_CPU_MP_DATA {
CPU_EXCHANGE_ROLE_INFO BSPInfo;
CPU_EXCHANGE_ROLE_INFO APInfo;
MTRR_SETTINGS MtrrTable;
UINT8 ApLoopMode;
UINT8 ApTargetCState;
PEI_CPU_DATA *CpuData;
volatile MP_CPU_EXCHANGE_INFO *MpCpuExchangeInfo;
};