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/** @file
*
* Copyright (c) 2011, ARM Limited. All rights reserved.
*
* 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.
*
**/
//
// The package level header files this module uses
//
#include <PiPei.h>
//
// The protocols, PPI and GUID defintions for this module
//
#include <Ppi/MasterBootMode.h>
#include <Ppi/BootInRecoveryMode.h>
#include <Guid/MemoryTypeInformation.h>
//
// The Library classes this module consumes
//
#include <Library/DebugLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/PcdLib.h>
#include <Library/HobLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/ArmLib.h>
#include <Library/IoLib.h>
#include <Library/ArmPlatformLib.h>
//
// Module globals
//
VOID
InitMmu (
VOID
)
{
ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;
VOID *TranslationTableBase;
UINTN TranslationTableSize;
// Get Virtual Memory Map from the Platform Library
ArmPlatformGetVirtualMemoryMap(&MemoryTable);
//Note: Because we called PeiServicesInstallPeiMemory() before to call InitMmu() the MMU Page Table resides in
// DRAM (even at the top of DRAM as it is the first permanent memory allocation)
ArmConfigureMmu (MemoryTable, &TranslationTableBase, &TranslationTableSize);
}
// May want to put this into a library so you only need the PCD setings if you are using the feature?
VOID
BuildMemoryTypeInformationHob (
VOID
)
{
EFI_MEMORY_TYPE_INFORMATION Info[10];
Info[0].Type = EfiACPIReclaimMemory;
Info[0].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiACPIReclaimMemory);
Info[1].Type = EfiACPIMemoryNVS;
Info[1].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiACPIMemoryNVS);
Info[2].Type = EfiReservedMemoryType;
Info[2].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiReservedMemoryType);
Info[3].Type = EfiRuntimeServicesData;
Info[3].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiRuntimeServicesData);
Info[4].Type = EfiRuntimeServicesCode;
Info[4].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiRuntimeServicesCode);
Info[5].Type = EfiBootServicesCode;
Info[5].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiBootServicesCode);
Info[6].Type = EfiBootServicesData;
Info[6].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiBootServicesData);
Info[7].Type = EfiLoaderCode;
Info[7].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderCode);
Info[8].Type = EfiLoaderData;
Info[8].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderData);
// Terminator for the list
Info[9].Type = EfiMaxMemoryType;
Info[9].NumberOfPages = 0;
BuildGuidDataHob (&gEfiMemoryTypeInformationGuid, &Info, sizeof (Info));
}
EFI_STATUS
EFIAPI
InitializeMemory (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
)
/*++
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 Status;
ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR* EfiMemoryMap;
UINTN PeiMemoryBase;
UINTN PeiMemorySize;
UINTN Index;
DEBUG ((EFI_D_ERROR, "Memory Init PEIM Loaded\n"));
// If it is not a standalone version, then we need to initialize the System Memory
// In case of a standalone version, the DRAM is already initialized
if (FeaturePcdGet(PcdStandalone)) {
// Initialize the System Memory controller (DRAM)
ArmPlatformInitializeSystemMemory();
}
// Install the Memory to PEI
ArmPlatformGetPeiMemory (&PeiMemoryBase,&PeiMemorySize);
Status = PeiServicesInstallPeiMemory (PeiMemoryBase,PeiMemorySize);
ASSERT_EFI_ERROR (Status);
//
// Now, the permanent memory has been installed, we can call AllocatePages()
//
ArmPlatformGetEfiMemoryMap (&EfiMemoryMap);
// Install the EFI Memory Map
for (Index = 0; EfiMemoryMap[Index].ResourceAttribute != 0; Index++) {
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
EfiMemoryMap[Index].ResourceAttribute,
EfiMemoryMap[Index].PhysicalStart,
EfiMemoryMap[Index].NumberOfBytes
);
}
// Build Memory Allocation Hob
InitMmu ();
if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {
// Optional feature that helps prevent EFI memory map fragmentation.
BuildMemoryTypeInformationHob ();
}
return Status;
}
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