eed947be0b
The Standalone MM environment runs in S-EL0 in AArch64 on ARM Standard Platforms. Privileged firmware e.g. ARM Trusted Firmware sets up its architectural context including the initial translation tables for the S-EL1/EL0 translation regime. The MM environment will still request ARM TF to change the memory attributes of memory regions during initialization. The Standalone MM image is a FV that encapsulates the MM foundation and drivers. These are PE-COFF images with data and text segments. To initialise the MM environment, Arm Trusted Firmware has to create translation tables with sane default attributes for the memory occupied by the FV. This library sends SVCs to ARM Trusted Firmware to request memory permissions change for data and text segments. This patch adds a simple MMU library suitable for execution in S-EL0 and requesting memory permissions change operations from Arm Trusted Firmware. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
37 lines
1.1 KiB
INI
37 lines
1.1 KiB
INI
#/** @file
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#
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# Copyright (c) 2017 - 2018, ARM Limited. All rights reserved.
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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#
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#**/
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[Defines]
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INF_VERSION = 0x0001001A
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BASE_NAME = ArmMmuStandaloneMmCoreLib
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FILE_GUID = da8f0232-fb14-42f0-922c-63104d2c70bd
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MODULE_TYPE = MM_CORE_STANDALONE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = StandaloneMmMmuLib
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PI_SPECIFICATION_VERSION = 0x00010032
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[Sources.AARCH64]
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Aarch64/ArmMmuStandaloneMmLib.c
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[Packages]
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ArmPkg/ArmPkg.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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