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/** @file
Copyright (c) 2011, ARM Limited. All rights reserved.
Copyright (c) 2022, Google LLC. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiPei.h>
#include <Library/ArmPlatformLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/PeiServicesLib.h>
#include <Library/PcdLib.h>
#include <Guid/MemoryTypeInformation.h>
EFI_STATUS
EFIAPI
MemoryPeim (
IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
IN UINT64 UefiMemorySize
);
/**
Build the memory type information HOB that describes how many pages of each
type to preallocate when initializing the GCD memory map.
**/
VOID
EFIAPI
BuildMemoryTypeInformationHob (
VOID
)
{
EFI_MEMORY_TYPE_INFORMATION Info[6];
Info[0].Type = EfiACPIReclaimMemory;
Info[0].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiACPIReclaimMemory);
Info[1].Type = EfiACPIMemoryNVS;
Info[1].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiACPIMemoryNVS);
Info[2].Type = EfiReservedMemoryType;
Info[2].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiReservedMemoryType);
Info[3].Type = EfiRuntimeServicesData;
Info[3].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesData);
Info[4].Type = EfiRuntimeServicesCode;
Info[4].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesCode);
// Terminator for the list
Info[5].Type = EfiMaxMemoryType;
Info[5].NumberOfPages = 0;
BuildGuidDataHob (&gEfiMemoryTypeInformationGuid, &Info, sizeof (Info));
}
/**
Module entry point.
@param[in] FileHandle Handle of the file being invoked.
@param[in] PeiServices Describes the list of possible PEI Services.
@return EFI_SUCCESS unless the operation failed.
**/
EFI_STATUS
EFIAPI
InitializeMemory (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
UINTN UefiMemoryBase;
EFI_STATUS Status;
ASSERT (FixedPcdGet64 (PcdSystemMemoryBase) < (UINT64)MAX_ALLOC_ADDRESS);
//
// Put the permanent PEI memory in the first 128 MiB of DRAM so that
// it is covered by the statically configured ID map.
//
UefiMemoryBase = (UINTN)FixedPcdGet64 (PcdSystemMemoryBase) + SIZE_128MB
- FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
Status = PeiServicesInstallPeiMemory (
UefiMemoryBase,
FixedPcdGet32 (PcdSystemMemoryUefiRegionSize)
);
ASSERT_EFI_ERROR (Status);
Status = MemoryPeim (
UefiMemoryBase,
FixedPcdGet32 (PcdSystemMemoryUefiRegionSize)
);
ASSERT_EFI_ERROR (Status);
return Status;
}
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