/**
Worker function to execute a caller provided function on all enabled APs.
@param[in] Procedure A pointer to the function to be run on
enabled APs of the system.
**/
VOID
StartupAPsWorker (
IN EFI_AP_PROCEDURE Procedure
)
{
EFI_STATUS Status;
EFI_PEI_MP_SERVICES_PPI *CpuMpPpi;
//
// Get MP Services Protocol
//
Status = PeiServicesLocatePpi (
&gEfiPeiMpServicesPpiGuid,
0,
NULL,
(VOID **)&CpuMpPpi
);
ASSERT_EFI_ERROR (Status);
//
// Wakeup all APs for data collection.
//
Status = CpuMpPpi->StartupAllAPs (
GetPeiServicesTablePointer (),
CpuMpPpi,
Procedure,
FALSE,
0,
NULL
);
ASSERT_EFI_ERROR (Status);
}
/**
Worker function to execute a caller provided function on all enabled APs.
@param[in] Procedure A pointer to the function to be run on
enabled APs of the system.
@param[in] MpEvent The Event used to sync the result.
**/
VOID
StartupAPsWorker (
IN EFI_AP_PROCEDURE Procedure,
IN EFI_EVENT MpEvent
)
{
EFI_STATUS Status;
EFI_PEI_MP_SERVICES_PPI *CpuMpPpi;
CPU_FEATURES_DATA *CpuFeaturesData;
CpuFeaturesData = GetCpuFeaturesData ();
CpuMpPpi = CpuFeaturesData->MpService.Ppi;
//
// Wakeup all APs for data collection.
//
Status = CpuMpPpi->StartupAllAPs (
GetPeiServicesTablePointer (),
CpuMpPpi,
Procedure,
FALSE,
0,
CpuFeaturesData
);
ASSERT_EFI_ERROR (Status);
}
/**
Notification function called when EFI_PEI_MP_SERVICES_PPI becomes available.
@param[in] PeiServices Indirect reference to the PEI Services Table.
@param[in] NotifyDescriptor Address of the notification descriptor data
structure.
@param[in] Ppi Address of the PPI that was installed.
@return Status of the notification. The status code returned from this
function is ignored.
**/
STATIC
EFI_STATUS
EFIAPI
OnMpServicesAvailable (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
)
{
EFI_PEI_MP_SERVICES_PPI *MpServices;
EFI_STATUS Status;
DEBUG ((EFI_D_VERBOSE, "%a: %a\n", gEfiCallerBaseName, __FUNCTION__));
//
// Write the MSR on all the APs in parallel.
//
MpServices = Ppi;
Status = MpServices->StartupAllAPs (
(CONST EFI_PEI_SERVICES **)PeiServices,
MpServices,
WriteFeatureControl, // Procedure
FALSE, // SingleThread
0, // TimeoutInMicroSeconds: inf.
NULL // ProcedureArgument
);
if (EFI_ERROR (Status) && Status != EFI_NOT_STARTED) {
DEBUG ((EFI_D_ERROR, "%a: StartupAllAps(): %r\n", __FUNCTION__, Status));
return Status;
}
//
// Now write the MSR on the BSP too.
//
WriteFeatureControl (NULL);
return EFI_SUCCESS;
}
