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f9c373c838
Introduce a driver that allows users to disable the EFI Memory Attribute protocol through an HII setup option, in order to work around a broken version of rhboot's shim used in some distros (e.g. CentOS Stream 9) which incorrectly invokes the protocol and results in a Synchronous Exception. Default is enabled, which can also be overridden at build time by changing `gEmbeddedTokenSpaceGuid.PcdMemoryAttributeEnabledDefault`. It is only applicable to ARM64 and there isn't any other technical reason for disabling this security feature. See: - https://github.com/microsoft/mu_silicon_arm_tiano/issues/124 - https://edk2.groups.io/g/devel/topic/99631663 - https://github.com/tianocore/edk2/pull/5840 Signed-off-by: Mario Bălănică <mariobalanica02@gmail.com>
63 lines
1.8 KiB
INI
63 lines
1.8 KiB
INI
## @file
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# EFI Memory Attribute Protocol state manager
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#
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# This driver allows users to disable the EFI Memory Attribute protocol
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# through an HII setup option, in order to work around a broken version
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# of rhboot's shim used in some distros (e.g. CentOS Stream 9) which
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# incorrectly invokes the protocol and results in a Synchronous Exception.
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#
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# It is only applicable to ARM64 and there isn't any other technical
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# reason for disabling this security feature.
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#
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# See:
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# - https://github.com/microsoft/mu_silicon_arm_tiano/issues/124
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# - https://edk2.groups.io/g/devel/topic/99631663
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# - https://github.com/tianocore/edk2/pull/5840
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#
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# Copyright (c) 2023-2024, Mario Bălănică <mariobalanica02@gmail.com>
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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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[Defines]
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INF_VERSION = 0x0001001B
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BASE_NAME = MemoryAttributeManagerDxe
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FILE_GUID = 5319346b-66ad-433a-9a91-f7fc286bc9a1
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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ENTRY_POINT = MemoryAttributeManagerInitialize
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[Sources]
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MemoryAttributeManagerDxe.c
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MemoryAttributeManagerDxe.h
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MemoryAttributeManagerDxeHii.uni
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MemoryAttributeManagerDxeHii.vfr
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[Packages]
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EmbeddedPkg/EmbeddedPkg.dec
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.dec
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[LibraryClasses]
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DebugLib
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DevicePathLib
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HiiLib
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UefiBootServicesTableLib
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UefiRuntimeServicesTableLib
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UefiDriverEntryPoint
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[Guids]
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gMemoryAttributeManagerFormSetGuid
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[Protocols]
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gEfiMemoryAttributeProtocolGuid
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[Pcd]
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gEmbeddedTokenSpaceGuid.PcdMemoryAttributeEnabledDefault
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[Depex]
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gEfiVariableArchProtocolGuid AND
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gEfiVariableWriteArchProtocolGuid AND
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gEfiMemoryAttributeProtocolGuid
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