575 lines
18 KiB
C
575 lines
18 KiB
C
/** @file
|
|
CPU PEI Module installs CPU Multiple Processor PPI.
|
|
|
|
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#include "CpuMpPei.h"
|
|
|
|
//
|
|
// Global Descriptor Table (GDT)
|
|
//
|
|
GLOBAL_REMOVE_IF_UNREFERENCED IA32_GDT mGdtEntries[] = {
|
|
/* selector { Global Segment Descriptor } */
|
|
/* 0x00 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, //null descriptor
|
|
/* 0x08 */ {{0xffff, 0, 0, 0x2, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //linear data segment descriptor
|
|
/* 0x10 */ {{0xffff, 0, 0, 0xf, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //linear code segment descriptor
|
|
/* 0x18 */ {{0xffff, 0, 0, 0x3, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //system data segment descriptor
|
|
/* 0x20 */ {{0xffff, 0, 0, 0xa, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //system code segment descriptor
|
|
/* 0x28 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, //spare segment descriptor
|
|
/* 0x30 */ {{0xffff, 0, 0, 0x2, 1, 0, 1, 0xf, 0, 0, 1, 1, 0}}, //system data segment descriptor
|
|
/* 0x38 */ {{0xffff, 0, 0, 0xa, 1, 0, 1, 0xf, 0, 1, 0, 1, 0}}, //system code segment descriptor
|
|
/* 0x40 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}, //spare segment descriptor
|
|
};
|
|
|
|
//
|
|
// IA32 Gdt register
|
|
//
|
|
GLOBAL_REMOVE_IF_UNREFERENCED IA32_DESCRIPTOR mGdt = {
|
|
sizeof (mGdtEntries) - 1,
|
|
(UINTN) mGdtEntries
|
|
};
|
|
|
|
GLOBAL_REMOVE_IF_UNREFERENCED EFI_PEI_NOTIFY_DESCRIPTOR mNotifyList = {
|
|
(EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
|
|
&gEfiEndOfPeiSignalPpiGuid,
|
|
CpuMpEndOfPeiCallback
|
|
};
|
|
|
|
/**
|
|
Sort the APIC ID of all processors.
|
|
|
|
This function sorts the APIC ID of all processors so that processor number is
|
|
assigned in the ascending order of APIC ID which eases MP debugging.
|
|
|
|
@param PeiCpuMpData Pointer to PEI CPU MP Data
|
|
**/
|
|
VOID
|
|
SortApicId (
|
|
IN PEI_CPU_MP_DATA *PeiCpuMpData
|
|
)
|
|
{
|
|
UINTN Index1;
|
|
UINTN Index2;
|
|
UINTN Index3;
|
|
UINT32 ApicId;
|
|
EFI_HEALTH_FLAGS Health;
|
|
UINT32 ApCount;
|
|
|
|
ApCount = PeiCpuMpData->CpuCount - 1;
|
|
|
|
if (ApCount != 0) {
|
|
for (Index1 = 0; Index1 < ApCount; Index1++) {
|
|
Index3 = Index1;
|
|
//
|
|
// Sort key is the hardware default APIC ID
|
|
//
|
|
ApicId = PeiCpuMpData->CpuData[Index1].ApicId;
|
|
for (Index2 = Index1 + 1; Index2 <= ApCount; Index2++) {
|
|
if (ApicId > PeiCpuMpData->CpuData[Index2].ApicId) {
|
|
Index3 = Index2;
|
|
ApicId = PeiCpuMpData->CpuData[Index2].ApicId;
|
|
}
|
|
}
|
|
if (Index3 != Index1) {
|
|
PeiCpuMpData->CpuData[Index3].ApicId = PeiCpuMpData->CpuData[Index1].ApicId;
|
|
PeiCpuMpData->CpuData[Index1].ApicId = ApicId;
|
|
Health = PeiCpuMpData->CpuData[Index3].Health;
|
|
PeiCpuMpData->CpuData[Index3].Health = PeiCpuMpData->CpuData[Index1].Health;
|
|
PeiCpuMpData->CpuData[Index1].Health = Health;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Get the processor number for the BSP
|
|
//
|
|
ApicId = GetInitialApicId ();
|
|
for (Index1 = 0; Index1 < PeiCpuMpData->CpuCount; Index1++) {
|
|
if (PeiCpuMpData->CpuData[Index1].ApicId == ApicId) {
|
|
PeiCpuMpData->BspNumber = (UINT32) Index1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
Get CPU MP Data pointer from the Guided HOB.
|
|
|
|
@return Pointer to Pointer to PEI CPU MP Data
|
|
**/
|
|
PEI_CPU_MP_DATA *
|
|
GetMpHobData (
|
|
VOID
|
|
)
|
|
{
|
|
EFI_HOB_GUID_TYPE *GuidHob;
|
|
VOID *DataInHob;
|
|
PEI_CPU_MP_DATA *CpuMpData;
|
|
|
|
CpuMpData = NULL;
|
|
GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);
|
|
if (GuidHob != NULL) {
|
|
DataInHob = GET_GUID_HOB_DATA (GuidHob);
|
|
CpuMpData = (PEI_CPU_MP_DATA *)(*(UINTN *)DataInHob);
|
|
}
|
|
ASSERT (CpuMpData != NULL);
|
|
return CpuMpData;
|
|
}
|
|
|
|
/**
|
|
This function will be called from AP reset code if BSP uses WakeUpAP.
|
|
|
|
@param ExchangeInfo Pointer to the MP exchange info buffer
|
|
@param NumApsExecuting Number of curret executing AP
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
ApCFunction (
|
|
IN MP_CPU_EXCHANGE_INFO *ExchangeInfo,
|
|
IN UINTN NumApsExecuting
|
|
)
|
|
{
|
|
PEI_CPU_MP_DATA *PeiCpuMpData;
|
|
UINTN ProcessorNumber;
|
|
EFI_AP_PROCEDURE Procedure;
|
|
UINTN BistData;
|
|
|
|
PeiCpuMpData = ExchangeInfo->PeiCpuMpData;
|
|
if (PeiCpuMpData->InitFlag) {
|
|
//
|
|
// This is first time AP wakeup, get BIST inforamtion from AP stack
|
|
//
|
|
BistData = *(UINTN *) (PeiCpuMpData->Buffer + NumApsExecuting * PeiCpuMpData->CpuApStackSize - sizeof (UINTN));
|
|
PeiCpuMpData->CpuData[NumApsExecuting].ApicId = GetInitialApicId ();
|
|
PeiCpuMpData->CpuData[NumApsExecuting].Health.Uint32 = (UINT32) BistData;
|
|
//
|
|
// Sync BSP's Mtrr table to all wakeup APs and load microcode on APs.
|
|
//
|
|
MtrrSetAllMtrrs (&PeiCpuMpData->MtrrTable);
|
|
MicrocodeDetect ();
|
|
} else {
|
|
//
|
|
// Execute AP function if AP is not disabled
|
|
//
|
|
GetProcessorNumber (PeiCpuMpData, &ProcessorNumber);
|
|
if ((PeiCpuMpData->CpuData[ProcessorNumber].State != CpuStateDisabled) &&
|
|
(PeiCpuMpData->ApFunction != 0)) {
|
|
PeiCpuMpData->CpuData[ProcessorNumber].State = CpuStateBusy;
|
|
Procedure = (EFI_AP_PROCEDURE)(UINTN)PeiCpuMpData->ApFunction;
|
|
Procedure ((VOID *)(UINTN)PeiCpuMpData->ApFunctionArgument);
|
|
PeiCpuMpData->CpuData[ProcessorNumber].State = CpuStateIdle;
|
|
}
|
|
}
|
|
|
|
//
|
|
// AP finished executing C code
|
|
//
|
|
InterlockedIncrement ((UINT32 *)&PeiCpuMpData->FinishedCount);
|
|
|
|
AsmCliHltLoop ();
|
|
}
|
|
|
|
/**
|
|
This function will be called by BSP to wakeup AP.
|
|
|
|
@param PeiCpuMpData Pointer to PEI CPU MP Data
|
|
@param Broadcast TRUE: Send broadcast IPI to all APs
|
|
FALSE: Send IPI to AP by ApicId
|
|
@param ApicId Apic ID for the processor to be waked
|
|
@param Procedure The function to be invoked by AP
|
|
@param ProcedureArgument The argument to be passed into AP function
|
|
**/
|
|
VOID
|
|
WakeUpAP (
|
|
IN PEI_CPU_MP_DATA *PeiCpuMpData,
|
|
IN BOOLEAN Broadcast,
|
|
IN UINT32 ApicId,
|
|
IN EFI_AP_PROCEDURE Procedure, OPTIONAL
|
|
IN VOID *ProcedureArgument OPTIONAL
|
|
)
|
|
{
|
|
volatile MP_CPU_EXCHANGE_INFO *ExchangeInfo;
|
|
|
|
PeiCpuMpData->ApFunction = (UINTN) Procedure;
|
|
PeiCpuMpData->ApFunctionArgument = (UINTN) ProcedureArgument;
|
|
PeiCpuMpData->FinishedCount = 0;
|
|
|
|
ExchangeInfo = PeiCpuMpData->MpCpuExchangeInfo;
|
|
ExchangeInfo->Lock = 0;
|
|
ExchangeInfo->StackStart = PeiCpuMpData->Buffer;
|
|
ExchangeInfo->StackSize = PeiCpuMpData->CpuApStackSize;
|
|
ExchangeInfo->BufferStart = PeiCpuMpData->WakeupBuffer;
|
|
ExchangeInfo->PmodeOffset = PeiCpuMpData->AddressMap.PModeEntryOffset;
|
|
ExchangeInfo->LmodeOffset = PeiCpuMpData->AddressMap.LModeEntryOffset;
|
|
ExchangeInfo->Cr3 = AsmReadCr3 ();
|
|
ExchangeInfo->CFunction = (UINTN) ApCFunction;
|
|
ExchangeInfo->NumApsExecuting = 0;
|
|
ExchangeInfo->PeiCpuMpData = PeiCpuMpData;
|
|
|
|
//
|
|
// Get the BSP's data of GDT and IDT
|
|
//
|
|
CopyMem ((VOID *)&ExchangeInfo->GdtrProfile, &mGdt, sizeof(mGdt));
|
|
AsmReadIdtr ((IA32_DESCRIPTOR *) &ExchangeInfo->IdtrProfile);
|
|
|
|
if (Broadcast) {
|
|
SendInitSipiSipiAllExcludingSelf ((UINT32) ExchangeInfo->BufferStart);
|
|
} else {
|
|
SendInitSipiSipi (ApicId, (UINT32) ExchangeInfo->BufferStart);
|
|
}
|
|
|
|
return ;
|
|
}
|
|
|
|
/**
|
|
Get available system memory below 1MB by specified size.
|
|
|
|
@param WakeupBufferSize Wakeup buffer size required
|
|
|
|
@retval other Return wakeup buffer address below 1MB.
|
|
@retval -1 Cannot find free memory below 1MB.
|
|
**/
|
|
UINTN
|
|
GetWakeupBuffer (
|
|
IN UINTN WakeupBufferSize
|
|
)
|
|
{
|
|
EFI_PEI_HOB_POINTERS Hob;
|
|
UINTN WakeupBufferStart;
|
|
UINTN WakeupBufferEnd;
|
|
|
|
//
|
|
// Get the HOB list for processing
|
|
//
|
|
Hob.Raw = GetHobList ();
|
|
|
|
//
|
|
// Collect memory ranges
|
|
//
|
|
while (!END_OF_HOB_LIST (Hob)) {
|
|
if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
|
|
if ((Hob.ResourceDescriptor->PhysicalStart < BASE_1MB) &&
|
|
(Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) &&
|
|
((Hob.ResourceDescriptor->ResourceAttribute &
|
|
(EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED |
|
|
EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED |
|
|
EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED
|
|
)) == 0)
|
|
) {
|
|
//
|
|
// Need memory under 1MB to be collected here
|
|
//
|
|
WakeupBufferEnd = (UINTN) (Hob.ResourceDescriptor->PhysicalStart + Hob.ResourceDescriptor->ResourceLength);
|
|
if (WakeupBufferEnd > BASE_1MB) {
|
|
//
|
|
// Wakeup buffer should be under 1MB
|
|
//
|
|
WakeupBufferEnd = BASE_1MB;
|
|
}
|
|
//
|
|
// Wakeup buffer should be aligned on 4KB
|
|
//
|
|
WakeupBufferStart = (WakeupBufferEnd - WakeupBufferSize) & ~(SIZE_4KB - 1);
|
|
if (WakeupBufferStart < Hob.ResourceDescriptor->PhysicalStart) {
|
|
continue;
|
|
}
|
|
//
|
|
// Create a memory allocation HOB.
|
|
//
|
|
BuildMemoryAllocationHob (
|
|
WakeupBufferStart,
|
|
WakeupBufferSize,
|
|
EfiBootServicesData
|
|
);
|
|
return WakeupBufferStart;
|
|
}
|
|
}
|
|
//
|
|
// Find the next HOB
|
|
//
|
|
Hob.Raw = GET_NEXT_HOB (Hob);
|
|
}
|
|
|
|
return (UINTN) -1;
|
|
}
|
|
|
|
/**
|
|
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
|
|
)
|
|
{
|
|
CopyMem (
|
|
(VOID *) PeiCpuMpData->BackupBuffer,
|
|
(VOID *) PeiCpuMpData->WakeupBuffer,
|
|
PeiCpuMpData->BackupBufferSize
|
|
);
|
|
CopyMem (
|
|
(VOID *) PeiCpuMpData->WakeupBuffer,
|
|
(VOID *) PeiCpuMpData->AddressMap.RendezvousFunnelAddress,
|
|
PeiCpuMpData->AddressMap.RendezvousFunnelSize
|
|
);
|
|
}
|
|
|
|
/**
|
|
Restore wakeup buffer data.
|
|
|
|
@param PeiCpuMpData Pointer to PEI CPU MP Data
|
|
**/
|
|
VOID
|
|
RestoreWakeupBuffer(
|
|
IN PEI_CPU_MP_DATA *PeiCpuMpData
|
|
)
|
|
{
|
|
CopyMem ((VOID *) PeiCpuMpData->WakeupBuffer, (VOID *) PeiCpuMpData->BackupBuffer, PeiCpuMpData->BackupBufferSize);
|
|
}
|
|
|
|
/**
|
|
This function will get CPU count in the system.
|
|
|
|
@param PeiCpuMpData Pointer to PEI CPU MP Data
|
|
|
|
@return AP processor count
|
|
**/
|
|
UINT32
|
|
CountProcessorNumber (
|
|
IN PEI_CPU_MP_DATA *PeiCpuMpData
|
|
)
|
|
{
|
|
//
|
|
// Load Microcode on BSP
|
|
//
|
|
MicrocodeDetect ();
|
|
//
|
|
// Store BSP's MTRR setting
|
|
//
|
|
MtrrGetAllMtrrs (&PeiCpuMpData->MtrrTable);
|
|
|
|
//
|
|
// Only perform AP detection if PcdCpuMaxLogicalProcessorNumber is greater than 1
|
|
//
|
|
if (PcdGet32 (PcdCpuMaxLogicalProcessorNumber) > 1) {
|
|
//
|
|
// Send broadcast IPI to APs to wakeup APs
|
|
//
|
|
PeiCpuMpData->InitFlag = 1;
|
|
WakeUpAP (PeiCpuMpData, TRUE, 0, NULL, NULL);
|
|
//
|
|
// Wait for AP task to complete and then exit.
|
|
//
|
|
MicroSecondDelay (PcdGet32 (PcdCpuApInitTimeOutInMicroSeconds));
|
|
PeiCpuMpData->InitFlag = 0;
|
|
PeiCpuMpData->CpuCount += (UINT32)PeiCpuMpData->MpCpuExchangeInfo->NumApsExecuting;
|
|
ASSERT (PeiCpuMpData->CpuCount <= PcdGet32 (PcdCpuMaxLogicalProcessorNumber));
|
|
//
|
|
// Sort BSP/Aps by CPU APIC ID in ascending order
|
|
//
|
|
SortApicId (PeiCpuMpData);
|
|
}
|
|
|
|
DEBUG ((EFI_D_INFO, "CpuMpPei: Find %d processors in system.\n", PeiCpuMpData->CpuCount));
|
|
return PeiCpuMpData->CpuCount;
|
|
}
|
|
|
|
/**
|
|
Prepare for AP wakeup buffer and copy AP reset code into it.
|
|
|
|
Get wakeup buffer below 1MB. Allocate memory for CPU MP Data and APs Stack.
|
|
|
|
@return Pointer to PEI CPU MP Data
|
|
**/
|
|
PEI_CPU_MP_DATA *
|
|
PrepareAPStartupVector (
|
|
VOID
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINT32 MaxCpuCount;
|
|
PEI_CPU_MP_DATA *PeiCpuMpData;
|
|
EFI_PHYSICAL_ADDRESS Buffer;
|
|
UINTN BufferSize;
|
|
UINTN WakeupBuffer;
|
|
UINTN WakeupBufferSize;
|
|
MP_ASSEMBLY_ADDRESS_MAP AddressMap;
|
|
|
|
AsmGetAddressMap (&AddressMap);
|
|
WakeupBufferSize = AddressMap.RendezvousFunnelSize + sizeof (MP_CPU_EXCHANGE_INFO);
|
|
WakeupBuffer = GetWakeupBuffer ((WakeupBufferSize + SIZE_4KB - 1) & ~(SIZE_4KB - 1));
|
|
ASSERT (WakeupBuffer != (UINTN) -1);
|
|
DEBUG ((EFI_D_INFO, "CpuMpPei: WakeupBuffer = 0x%x\n", WakeupBuffer));
|
|
|
|
//
|
|
// Allocate Pages for APs stack, CPU MP Data and backup buffer for wakeup buffer
|
|
//
|
|
MaxCpuCount = PcdGet32(PcdCpuMaxLogicalProcessorNumber);
|
|
BufferSize = PcdGet32 (PcdCpuApStackSize) * MaxCpuCount + sizeof (PEI_CPU_MP_DATA)
|
|
+ WakeupBufferSize + sizeof (PEI_CPU_DATA) * MaxCpuCount;
|
|
Status = PeiServicesAllocatePages (
|
|
EfiBootServicesData,
|
|
EFI_SIZE_TO_PAGES (BufferSize),
|
|
&Buffer
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
PeiCpuMpData = (PEI_CPU_MP_DATA *) (UINTN) (Buffer + PcdGet32 (PcdCpuApStackSize) * MaxCpuCount);
|
|
PeiCpuMpData->Buffer = (UINTN) Buffer;
|
|
PeiCpuMpData->CpuApStackSize = PcdGet32 (PcdCpuApStackSize);
|
|
PeiCpuMpData->WakeupBuffer = WakeupBuffer;
|
|
PeiCpuMpData->BackupBuffer = (UINTN)PeiCpuMpData + sizeof (PEI_CPU_MP_DATA);
|
|
PeiCpuMpData->BackupBufferSize = WakeupBufferSize;
|
|
PeiCpuMpData->MpCpuExchangeInfo = (MP_CPU_EXCHANGE_INFO *) (UINTN) (WakeupBuffer + AddressMap.RendezvousFunnelSize);
|
|
|
|
PeiCpuMpData->CpuCount = 1;
|
|
PeiCpuMpData->BspNumber = 0;
|
|
PeiCpuMpData->CpuData = (PEI_CPU_DATA *) (PeiCpuMpData->BackupBuffer +
|
|
PeiCpuMpData->BackupBufferSize);
|
|
PeiCpuMpData->CpuData[0].ApicId = GetInitialApicId ();
|
|
PeiCpuMpData->CpuData[0].Health.Uint32 = 0;
|
|
PeiCpuMpData->EndOfPeiFlag = FALSE;
|
|
CopyMem (&PeiCpuMpData->AddressMap, &AddressMap, sizeof (MP_ASSEMBLY_ADDRESS_MAP));
|
|
|
|
//
|
|
// Backup original data and copy AP reset code in it
|
|
//
|
|
BackupAndPrepareWakeupBuffer(PeiCpuMpData);
|
|
|
|
return 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
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_BOOT_MODE BootMode;
|
|
PEI_CPU_MP_DATA *PeiCpuMpData;
|
|
EFI_PEI_HOB_POINTERS Hob;
|
|
EFI_HOB_MEMORY_ALLOCATION *MemoryHob;
|
|
|
|
DEBUG ((EFI_D_INFO, "CpuMpPei: CpuMpEndOfPeiCallback () invokded\n"));
|
|
|
|
Status = PeiServicesGetBootMode (&BootMode);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
PeiCpuMpData = GetMpHobData ();
|
|
ASSERT (PeiCpuMpData != NULL);
|
|
|
|
if (BootMode != BOOT_ON_S3_RESUME) {
|
|
//
|
|
// Get the HOB list for processing
|
|
//
|
|
Hob.Raw = GetHobList ();
|
|
//
|
|
// Collect memory ranges
|
|
//
|
|
while (!END_OF_HOB_LIST (Hob)) {
|
|
if (Hob.Header->HobType == EFI_HOB_TYPE_MEMORY_ALLOCATION) {
|
|
MemoryHob = Hob.MemoryAllocation;
|
|
if(MemoryHob->AllocDescriptor.MemoryBaseAddress == PeiCpuMpData->WakeupBuffer) {
|
|
//
|
|
// Flag this HOB type to un-used
|
|
//
|
|
GET_HOB_TYPE (Hob) = EFI_HOB_TYPE_UNUSED;
|
|
break;
|
|
}
|
|
}
|
|
Hob.Raw = GET_NEXT_HOB (Hob);
|
|
}
|
|
} else {
|
|
RestoreWakeupBuffer (PeiCpuMpData);
|
|
PeiCpuMpData->EndOfPeiFlag = TRUE;
|
|
}
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
The Entry point of the MP CPU PEIM.
|
|
|
|
This function will wakeup APs and collect CPU AP count and install the
|
|
Mp Service Ppi.
|
|
|
|
@param FileHandle Handle of the file being invoked.
|
|
@param PeiServices Describes the list of possible PEI Services.
|
|
|
|
@retval EFI_SUCCESS MpServicePpi is installed successfully.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
CpuMpPeimInit (
|
|
IN EFI_PEI_FILE_HANDLE FileHandle,
|
|
IN CONST EFI_PEI_SERVICES **PeiServices
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
PEI_CPU_MP_DATA *PeiCpuMpData;
|
|
UINT32 ProcessorCount;
|
|
|
|
//
|
|
// Load new GDT table on BSP
|
|
//
|
|
AsmInitializeGdt (&mGdt);
|
|
//
|
|
// Get wakeup buffer and copy AP reset code in it
|
|
//
|
|
PeiCpuMpData = PrepareAPStartupVector ();
|
|
//
|
|
// Count processor number and collect processor information
|
|
//
|
|
ProcessorCount = CountProcessorNumber (PeiCpuMpData);
|
|
//
|
|
// Build location of PEI CPU MP DATA buffer in HOB
|
|
//
|
|
BuildGuidDataHob (
|
|
&gEfiCallerIdGuid,
|
|
(VOID *)&PeiCpuMpData,
|
|
sizeof(UINT64)
|
|
);
|
|
//
|
|
// Update and publish CPU BIST information
|
|
//
|
|
CollectBistDataFromPpi (PeiServices, PeiCpuMpData);
|
|
//
|
|
// register an event for EndOfPei
|
|
//
|
|
Status = PeiServicesNotifyPpi (&mNotifyList);
|
|
ASSERT_EFI_ERROR (Status);
|
|
//
|
|
// Install CPU MP PPI
|
|
//
|
|
Status = PeiServicesInstallPpi(&mPeiCpuMpPpiDesc);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return Status;
|
|
}
|