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Unlike the AArch64 implementation of ArmMmuLib, which combines the initial page table population code with the code that runs at later stages to manage permission attributes in the page tables, ARM uses two completely separate sets of routines for this. Since ArmMmuLib is a static library, we can prevent duplication of this code between different users, which usually only need one or the other. (Note that LTO should also achieve the same.) This also makes it easier to reason about modifying the cache maintenance handling, and replace the set/way ops with by-VA ops, since the code that performs the set/way ops only executes when the MMU is still off. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif@nuviainc.com>
44 lines
1006 B
INI
44 lines
1006 B
INI
#/** @file
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#
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# Copyright (c) 2016 Linaro Ltd. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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#
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#**/
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = ArmMmuBaseLib
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FILE_GUID = da8f0232-fb14-42f0-922c-63104d2c70bd
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = ArmMmuLib
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[Defines.AARCH64]
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CONSTRUCTOR = ArmMmuBaseLibConstructor
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[Sources.AARCH64]
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AArch64/ArmMmuLibCore.c
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AArch64/ArmMmuLibReplaceEntry.S
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[Sources.ARM]
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Arm/ArmMmuLibConvert.c
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Arm/ArmMmuLibCore.c
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Arm/ArmMmuLibUpdate.c
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Arm/ArmMmuLibV7Support.S |GCC
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Arm/ArmMmuLibV7Support.asm |RVCT
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[Packages]
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ArmPkg/ArmPkg.dec
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EmbeddedPkg/EmbeddedPkg.dec
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MdePkg/MdePkg.dec
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[LibraryClasses]
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ArmLib
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CacheMaintenanceLib
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MemoryAllocationLib
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[Pcd.ARM]
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gArmTokenSpaceGuid.PcdNormalMemoryNonshareableOverride
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