Files
system76-edk2/ArmVirtPkg/MemoryInitPei/MemoryInitPeim.inf
Ard Biesheuvel a26050f74d ArmVirtPkg/ArmVirtQemu: use first 128 MiB as permanent PEI memory
In order to allow booting with the MMU and caches enabled really early,
we need to ensure that the code that populates the page tables can
access those page tables with the statically defined ID map active.

So let's put the permanent PEI RAM in the first 128 MiB of memory, which
we will cover with this initial ID map (as it is the minimum supported
DRAM size for ArmVirtQemu).

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2022-10-26 17:28:39 +00:00

60 lines
1.7 KiB
INI

## @file
# Implementation of MemoryInitPeim that uses the first 128 MiB at the base of
# DRAM as permanent PEI memory
#
# Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR>
# Copyright (c) 2022, Google LLC. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
##
[Defines]
INF_VERSION = 1.27
BASE_NAME = MemoryInit
FILE_GUID = 0fbffd44-f98f-4e1c-9922-e9b21f13c3f8
MODULE_TYPE = PEIM
VERSION_STRING = 1.0
ENTRY_POINT = InitializeMemory
[Sources]
MemoryInitPeim.c
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
EmbeddedPkg/EmbeddedPkg.dec
ArmPkg/ArmPkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[LibraryClasses]
PeimEntryPoint
DebugLib
HobLib
ArmLib
ArmPlatformLib
MemoryInitPeiLib
[Guids]
gEfiMemoryTypeInformationGuid
[FeaturePcd]
gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob
[FixedPcd]
gArmTokenSpaceGuid.PcdSystemMemoryBase
gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIReclaimMemory
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIMemoryNVS
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiReservedMemoryType
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesData
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesCode
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiBootServicesCode
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiBootServicesData
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiLoaderCode
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiLoaderData
[Depex]
TRUE