d269095b71
In the former memory model, the UEFI firmware was expected to be located at the top of the system memory. Stacks & Pi memory regions were set below the firmware. On some platform, the UEFI firmware could be shadowed by the ROM firmware (case of the BeagleBoard) and in some cases the firmware is copied at the beginning of the system memory. With this new memory model, stack and Pi/DXE memory regions are set at the top of the system memory wherever the UEFI firmware is located in the memory map. Because DXE core does not support shadowed firmwares, the system memory covered by the UEFI firmware is marked as 'Non Present' to avoid to be overlapped by DXE allocations. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11992 6f19259b-4bc3-4df7-8a09-765794883524
155 lines
5.4 KiB
C
Executable File
155 lines
5.4 KiB
C
Executable File
/** @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.
|
|
*
|
|
**/
|
|
|
|
#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/ArmPlatformLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/HobLib.h>
|
|
#include <Library/PeimEntryPoint.h>
|
|
#include <Library/PeiServicesLib.h>
|
|
#include <Library/PcdLib.h>
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
MemoryPeim (
|
|
IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
|
|
IN UINT64 UefiMemorySize
|
|
);
|
|
|
|
// May want to put this into a library so you only need the PCD settings 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));
|
|
}
|
|
|
|
/*++
|
|
|
|
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
|
|
InitializeMemory (
|
|
IN EFI_PEI_FILE_HANDLE FileHandle,
|
|
IN CONST EFI_PEI_SERVICES **PeiServices
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINTN SystemMemoryBase;
|
|
UINTN SystemMemoryTop;
|
|
UINTN FdBase;
|
|
UINTN FdTop;
|
|
UINTN UefiMemoryBase;
|
|
|
|
DEBUG ((EFI_D_ERROR, "Memory Init PEIM Loaded\n"));
|
|
|
|
// Ensure PcdSystemMemorySize has been set
|
|
ASSERT (FixedPcdGet32 (PcdSystemMemorySize) != 0);
|
|
|
|
SystemMemoryBase = (UINTN)FixedPcdGet32 (PcdSystemMemoryBase);
|
|
SystemMemoryTop = SystemMemoryBase + (UINTN)FixedPcdGet32 (PcdSystemMemorySize);
|
|
FdBase = (UINTN)PcdGet32 (PcdNormalFdBaseAddress);
|
|
FdTop = FdBase + (UINTN)PcdGet32 (PcdNormalFdSize);
|
|
|
|
//
|
|
// Initialize the System Memory (DRAM)
|
|
//
|
|
if (!FeaturePcdGet (PcdSystemMemoryInitializeInSec)) {
|
|
// In case the DRAM has not been initialized by the secure firmware
|
|
ArmPlatformInitializeSystemMemory ();
|
|
}
|
|
|
|
//
|
|
// Declare the UEFI memory to PEI
|
|
//
|
|
|
|
// In case the firmware has been shadowed in the System Memory
|
|
if ((FdBase >= SystemMemoryBase) && (FdTop <= SystemMemoryTop)) {
|
|
// Check if there is enough space between the top of the system memory and the top of the
|
|
// firmware to place the UEFI memory (for PEI & DXE phases)
|
|
if (SystemMemoryTop - FdTop >= FixedPcdGet32 (PcdSystemMemoryUefiRegionSize)) {
|
|
UefiMemoryBase = SystemMemoryTop - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
|
|
} else {
|
|
// Check there is enough space for the UEFI memory
|
|
ASSERT (SystemMemoryBase + FixedPcdGet32 (PcdSystemMemoryUefiRegionSize) <= FdBase);
|
|
|
|
UefiMemoryBase = FdBase - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
|
|
}
|
|
} else {
|
|
// Check the Firmware does not overlapped with the system memory
|
|
ASSERT ((FdBase < SystemMemoryBase) || (FdBase >= SystemMemoryTop));
|
|
ASSERT ((FdTop <= SystemMemoryBase) || (FdTop > SystemMemoryTop));
|
|
|
|
UefiMemoryBase = SystemMemoryTop - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
|
|
}
|
|
|
|
Status = PeiServicesInstallPeiMemory (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
// Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
|
|
Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return Status;
|
|
}
|