MpInitLibUp.c

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#include <PiDxe.h>
#include <Ppi/SecPlatformInformation.h>
#include <Protocol/MpService.h>
#include <Library/DebugLib.h>
#include <Library/LocalApicLib.h>
#include <Library/HobLib.h>
#include <Library/BaseMemoryLib.h>
 
EFI_STATUS
EFIAPI
MpInitLibInitialize (
  VOID
  )
{
  //
  // Enable the local APIC for Virtual Wire Mode.
  //
  ProgramVirtualWireMode ();
 
  return EFI_SUCCESS;
}
 
EFI_STATUS
EFIAPI
MpInitLibGetNumberOfProcessors (
  OUT UINTN  *NumberOfProcessors        OPTIONAL,
  OUT UINTN  *NumberOfEnabledProcessors OPTIONAL
  )
{
  *NumberOfProcessors        = 1;
  *NumberOfEnabledProcessors = 1;
  return EFI_SUCCESS;
}
 
EFI_STATUS
EFIAPI
MpInitLibGetProcessorInfo (
  IN  UINTN                      ProcessorNumber,
  OUT EFI_PROCESSOR_INFORMATION  *ProcessorInfoBuffer,
  OUT EFI_HEALTH_FLAGS           *HealthData  OPTIONAL
  )
{
  EFI_HOB_GUID_TYPE                    *GuidHob;
  EFI_SEC_PLATFORM_INFORMATION_RECORD  *SecPlatformInformation;
 
  if (ProcessorInfoBuffer == NULL) {
    return EFI_INVALID_PARAMETER;
  }
 
  //
  // Lower 24 bits contains the actual processor number.
  //
  if ((ProcessorNumber & (BIT24 - 1)) != 0) {
    return EFI_NOT_FOUND;
  }
 
  ZeroMem (ProcessorInfoBuffer, sizeof (*ProcessorInfoBuffer));
  ProcessorInfoBuffer->StatusFlag = PROCESSOR_AS_BSP_BIT  |
                                    PROCESSOR_ENABLED_BIT |
                                    PROCESSOR_HEALTH_STATUS_BIT;
 
  if (HealthData != NULL) {
    GuidHob = GetFirstGuidHob (&gEfiSecPlatformInformationPpiGuid);
    if (GuidHob != NULL) {
      SecPlatformInformation = GET_GUID_HOB_DATA (GuidHob);
      HealthData->Uint32     = SecPlatformInformation->IA32HealthFlags.Uint32;
    } else {
      DEBUG ((DEBUG_INFO, "Does not find any HOB stored CPU BIST information!\n"));
      HealthData->Uint32 = 0;
    }
  }
 
  return EFI_SUCCESS;
}
 
EFI_STATUS
EFIAPI
MpInitLibStartupAllAPs (
  IN  EFI_AP_PROCEDURE  Procedure,
  IN  BOOLEAN           SingleThread,
  IN  EFI_EVENT         WaitEvent               OPTIONAL,
  IN  UINTN             TimeoutInMicroseconds,
  IN  VOID              *ProcedureArgument      OPTIONAL,
  OUT UINTN             **FailedCpuList         OPTIONAL
  )
{
  return EFI_NOT_STARTED;
}
 
EFI_STATUS
EFIAPI
MpInitLibStartupThisAP (
  IN  EFI_AP_PROCEDURE  Procedure,
  IN  UINTN             ProcessorNumber,
  IN  EFI_EVENT         WaitEvent               OPTIONAL,
  IN  UINTN             TimeoutInMicroseconds,
  IN  VOID              *ProcedureArgument      OPTIONAL,
  OUT BOOLEAN           *Finished               OPTIONAL
  )
{
  return EFI_INVALID_PARAMETER;
}
 
EFI_STATUS
EFIAPI
MpInitLibSwitchBSP (
  IN UINTN    ProcessorNumber,
  IN BOOLEAN  EnableOldBSP
  )
{
  return EFI_UNSUPPORTED;
}
 
EFI_STATUS
EFIAPI
MpInitLibEnableDisableAP (
  IN  UINTN    ProcessorNumber,
  IN  BOOLEAN  EnableAP,
  IN  UINT32   *HealthFlag OPTIONAL
  )
{
  return EFI_UNSUPPORTED;
}
 
EFI_STATUS
EFIAPI
MpInitLibWhoAmI (
  OUT UINTN  *ProcessorNumber
  )
{
  if (ProcessorNumber == NULL) {
    return EFI_INVALID_PARAMETER;
  }
 
  *ProcessorNumber = 0;
  return EFI_SUCCESS;
}
 
EFI_STATUS
EFIAPI
MpInitLibStartupAllCPUs (
  IN  EFI_AP_PROCEDURE  Procedure,
  IN  UINTN             TimeoutInMicroseconds,
  IN  VOID              *ProcedureArgument      OPTIONAL
  )
{
  if (Procedure == NULL) {
    return EFI_INVALID_PARAMETER;
  }
 
  Procedure (ProcedureArgument);
 
  return EFI_SUCCESS;
}