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/**@file
Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2011 Hewlett Packard Corporation. All rights reserved.<BR>
Copyright (c) 2011-2013, ARM Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
Module Name:
MemoryInit.c
Abstract:
PEIM to provide fake memory init
**/
//
// The package level header files this module uses
//
#include <PiPei.h>
//
// The protocols, PPI and GUID definitions for this module
//
#include <Ppi/ArmMpCoreInfo.h>
//
// The Library classes this module consumes
//
#include <Library/DebugLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/PeiServicesLib.h>
#include <Library/PcdLib.h>
#include <Library/HobLib.h>
#include <Library/ArmLib.h>
/*++
Routine Description:
Arguments:
FileHandle - Handle of the file being invoked.
PeiServices - Describes the list of possible PEI Services.
Returns:
Status - EFI_SUCCESS if the boot mode could be set
--*/
EFI_STATUS
EFIAPI
InitializeCpuPeim (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
ARM_MP_CORE_INFO_PPI *ArmMpCoreInfoPpi;
UINTN ArmCoreCount;
ARM_CORE_INFO *ArmCoreInfoTable;
// Enable program flow prediction, if supported.
ArmEnableBranchPrediction ();
// Publish the CPU memory and io spaces sizes
BuildCpuHob (ArmGetPhysicalAddressBits (), PcdGet8 (PcdPrePiCpuIoSize));
// Only MP Core platform need to produce gArmMpCoreInfoPpiGuid
Status = PeiServicesLocatePpi (&gArmMpCoreInfoPpiGuid, 0, NULL, (VOID **)&ArmMpCoreInfoPpi);
if (!EFI_ERROR (Status)) {
// Build the MP Core Info Table
ArmCoreCount = 0;
Status = ArmMpCoreInfoPpi->GetMpCoreInfo (&ArmCoreCount, &ArmCoreInfoTable);
if (!EFI_ERROR (Status) && (ArmCoreCount > 0)) {
// Build MPCore Info HOB
BuildGuidDataHob (&gArmMpCoreInfoGuid, ArmCoreInfoTable, sizeof (ARM_CORE_INFO) * ArmCoreCount);
}
}
return EFI_SUCCESS;
}