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UefiCpuPkg/MpInitLib: Allocate and initialize memory of MP Data buffer 

v5:
  1. Add comment block for enum AP_INIT_STATE and structure CPU_AP_DATA.
  2. Add more comment for structure CPU_INFO_IN_HOB.
  3. Add more clarification in structure _CPU_MP_DATA for those fields
     pass from PEI to DXE.

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 2016-07-20 23:33:25 +08:00
parent 9ebcf0f400
commit e59f8f6b36
2 changed files with 137 additions and 0 deletions
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49
UefiCpuPkg/Library/MpInitLib/MpLib.c
View File

@ -93,15 +93,64 @@ MpInitLibInitialize (
VOID
)
{
UINT32 MaxLogicalProcessorNumber;
UINT32 ApStackSize;
MP_ASSEMBLY_ADDRESS_MAP AddressMap;
UINTN BufferSize;
UINT32 MonitorFilterSize;
VOID *MpBuffer;
UINTN Buffer;
CPU_MP_DATA *CpuMpData;
UINT8 ApLoopMode;
UINT8 *MonitorBuffer;
UINTN ApResetVectorSize;
UINTN BackupBufferAddr;
MaxLogicalProcessorNumber = PcdGet32(PcdCpuMaxLogicalProcessorNumber);
AsmGetAddressMap (&AddressMap);
ApResetVectorSize = AddressMap.RendezvousFunnelSize + sizeof (MP_CPU_EXCHANGE_INFO);
ApStackSize = PcdGet32(PcdCpuApStackSize);
ApLoopMode = GetApLoopMode (&MonitorFilterSize);
BufferSize = ApStackSize * MaxLogicalProcessorNumber;
BufferSize += MonitorFilterSize * MaxLogicalProcessorNumber;
BufferSize += sizeof (CPU_MP_DATA);
BufferSize += ApResetVectorSize;
BufferSize += (sizeof (CPU_AP_DATA) + sizeof (CPU_INFO_IN_HOB))* MaxLogicalProcessorNumber;
MpBuffer = AllocatePages (EFI_SIZE_TO_PAGES (BufferSize));
ASSERT (MpBuffer != NULL);
ZeroMem (MpBuffer, BufferSize);
Buffer = (UINTN) MpBuffer;
MonitorBuffer = (UINT8 *) (Buffer + ApStackSize * MaxLogicalProcessorNumber);
BackupBufferAddr = (UINTN) MonitorBuffer + MonitorFilterSize * MaxLogicalProcessorNumber;
CpuMpData = (CPU_MP_DATA *) (BackupBufferAddr + ApResetVectorSize);
CpuMpData->Buffer = Buffer;
CpuMpData->CpuApStackSize = ApStackSize;
CpuMpData->BackupBuffer = BackupBufferAddr;
CpuMpData->BackupBufferSize = ApResetVectorSize;
CpuMpData->EndOfPeiFlag = FALSE;
CpuMpData->WakeupBuffer = (UINTN) -1;
CpuMpData->CpuCount = 1;
CpuMpData->BspNumber = 0;
CpuMpData->WaitEvent = NULL;
CpuMpData->CpuData = (CPU_AP_DATA *) (CpuMpData + 1);
CpuMpData->CpuInfoInHob = (UINT64) (UINTN) (CpuMpData->CpuData + MaxLogicalProcessorNumber);
InitializeSpinLock(&CpuMpData->MpLock);
//
// Save assembly code information
//
CopyMem (&CpuMpData->AddressMap, &AddressMap, sizeof (MP_ASSEMBLY_ADDRESS_MAP));
//
// Finally set AP loop mode
//
CpuMpData->ApLoopMode = ApLoopMode;
DEBUG ((DEBUG_INFO, "AP Loop Mode is %d\n", CpuMpData->ApLoopMode));
//
// Store BSP's MTRR setting
//
MtrrGetAllMtrrs (&CpuMpData->MtrrTable);
return EFI_SUCCESS;
}

88
UefiCpuPkg/Library/MpInitLib/MpLib.h
View File

@ -45,6 +45,47 @@ typedef enum {
ApInRunLoop = 3
} AP_LOOP_MODE;
//
// AP initialization state during APs wakeup
//
typedef enum {
ApInitConfig = 1,
ApInitReconfig = 2,
ApInitDone = 3
} AP_INIT_STATE;
//
// AP related data
//
typedef struct {
SPIN_LOCK ApLock;
volatile UINT32 *StartupApSignal;
volatile UINTN ApFunction;
volatile UINTN ApFunctionArgument;
UINT32 InitialApicId;
UINT32 ApicId;
UINT32 Health;
BOOLEAN CpuHealthy;
BOOLEAN Waiting;
BOOLEAN *Finished;
UINT64 ExpectedTime;
UINT64 CurrentTime;
UINT64 TotalTime;
EFI_EVENT WaitEvent;
} CPU_AP_DATA;
//
// Basic CPU information saved in Guided HOB.
// Because the contents will be shard between PEI and DXE,
// we need to make sure the each fields offset same in different
// architecture.
//
typedef struct {
UINT32 InitialApicId;
UINT32 ApicId;
UINT32 Health;
} CPU_INFO_IN_HOB;
//
// AP reset code information including code address and size,
// this structure will be shared be C code and assembly code.
@ -58,6 +99,8 @@ typedef struct {
UINTN RelocateApLoopFuncSize;
} MP_ASSEMBLY_ADDRESS_MAP;
typedef struct _CPU_MP_DATA CPU_MP_DATA;
#pragma pack(1)
//
@ -79,9 +122,54 @@ typedef struct {
UINTN DataSegment;
UINTN EnableExecuteDisable;
UINTN Cr3;
CPU_MP_DATA *CpuMpData;
} MP_CPU_EXCHANGE_INFO;
#pragma pack()
//
// CPU MP Data save in memory
//
struct _CPU_MP_DATA {
UINT64 CpuInfoInHob;
UINT32 CpuCount;
UINT32 BspNumber;
//
// The above fields data will be passed from PEI to DXE
// Please make sure the fields offset same in the different
// architecture.
//
SPIN_LOCK MpLock;
UINTN Buffer;
UINTN CpuApStackSize;
MP_ASSEMBLY_ADDRESS_MAP AddressMap;
UINTN WakeupBuffer;
UINTN BackupBuffer;
UINTN BackupBufferSize;
BOOLEAN EndOfPeiFlag;
volatile UINT32 StartCount;
volatile UINT32 FinishedCount;
volatile UINT32 RunningCount;
BOOLEAN SingleThread;
EFI_AP_PROCEDURE Procedure;
VOID *ProcArguments;
BOOLEAN *Finished;
UINT64 ExpectedTime;
UINT64 CurrentTime;
UINT64 TotalTime;
EFI_EVENT WaitEvent;
UINTN **FailedCpuList;
AP_INIT_STATE InitFlag;
BOOLEAN X2ApicEnable;
MTRR_SETTINGS MtrrTable;
UINT8 ApLoopMode;
UINT8 ApTargetCState;
UINT16 PmCodeSegment;
CPU_AP_DATA *CpuData;
volatile MP_CPU_EXCHANGE_INFO *MpCpuExchangeInfo;
};
/**
Assembly code to place AP into safe loop mode.