(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.
}
}
}
+
+/**
+ 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.
)
{
PEI_CPU_MP_DATA *PeiCpuMpData;
+ UINTN ProcessorNumber;
+ EFI_AP_PROCEDURE Procedure;
UINTN BistData;
PeiCpuMpData = ExchangeInfo->PeiCpuMpData;
PeiCpuMpData->CpuData[NumApsExecuting].ApicId = GetInitialApicId ();
PeiCpuMpData->CpuData[NumApsExecuting].Health.Uint32 = (UINT32) BistData;
//
- // Sync BSP's Mtrr table to all wakeup APs
+ // 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;
+ }
}
//
//
InterlockedIncrement ((UINT32 *)&PeiCpuMpData->FinishedCount);
+ AsmCliHltLoop ();
}
/**
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.
IN PEI_CPU_MP_DATA *PeiCpuMpData
)
{
-
+ //
+ // Load Microcode on BSP
+ //
+ MicrocodeDetect ();
//
// Store BSP's MTRR setting
//
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));
//
PeiCpuMpData->CpuData = (PEI_CPU_DATA *) (PeiCpuMpData->MpCpuExchangeInfo + 1);
PeiCpuMpData->CpuData[0].ApicId = GetInitialApicId ();
PeiCpuMpData->CpuData[0].Health.Uint32 = 0;
+ PeiCpuMpData->EndOfPeiFlag = FALSE;
CopyMem (&PeiCpuMpData->AddressMap, &AddressMap, sizeof (MP_ASSEMBLY_ADDRESS_MAP));
//
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.
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
-
+ EFI_STATUS Status;
PEI_CPU_MP_DATA *PeiCpuMpData;
UINT32 ProcessorCount;
// 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 EFI_SUCCESS;
+ return Status;
}