477b5b7d55
Add a new library that can be incorporated into any driver built from source, and which permits loading of the driver to be inhibited based on the value of a QEMU fw_cfg boolean variable. This will be used in a subsequent patch to allow dispatch of the IPv4 and IPv6 network protocol driver to be controlled from the QEMU command line. This approach is based on the notion that all UEFI and DXE drivers share a single UefiDriverEntryPoint implementation, which we can easily swap out at build time with one that will abort execution based on the value of some QEMU fw_cfg variable. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
58 lines
1.8 KiB
INI
58 lines
1.8 KiB
INI
## @file
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# Entry point to a EFI/DXE driver. This version is specific to QEMU, and ties
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# dispatch of the driver in question on the value of a QEMU fw_cfg boolean
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# variable which is referenced by name via a fixed pointer PCD.
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#
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# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
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# Copyright (c) 2022, Google LLC. All rights reserved.<BR>
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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 = 1.29
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BASE_NAME = UefiDriverEntryPointFwCfgOverrideLib
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FILE_GUID = 73349b79-f148-43b8-b24e-9098a6f3e1db
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MODULE_TYPE = UEFI_DRIVER
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VERSION_STRING = 1.0
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LIBRARY_CLASS = UefiDriverEntryPoint|DXE_DRIVER DXE_RUNTIME_DRIVER UEFI_DRIVER
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[Sources]
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UefiDriverEntryPointFwCfgOverrideLib.c
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[Packages]
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MdePkg/MdePkg.dec
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OvmfPkg/OvmfPkg.dec
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[LibraryClasses]
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BaseLib
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DebugLib
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QemuFwCfgSimpleParserLib
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UefiBootServicesTableLib
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[Protocols]
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gEfiLoadedImageProtocolGuid ## SOMETIMES_CONSUMES
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[FixedPcd]
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gUefiOvmfPkgTokenSpaceGuid.PcdEntryPointOverrideFwCfgVarName
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#
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# For UEFI drivers, these architectural protocols defined in PI 1.0 spec need
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# to be appended and merged to the final dependency section.
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#
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[Depex.common.UEFI_DRIVER]
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gEfiBdsArchProtocolGuid AND
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gEfiCpuArchProtocolGuid AND
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gEfiMetronomeArchProtocolGuid AND
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gEfiMonotonicCounterArchProtocolGuid AND
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gEfiRealTimeClockArchProtocolGuid AND
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gEfiResetArchProtocolGuid AND
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gEfiRuntimeArchProtocolGuid AND
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gEfiSecurityArchProtocolGuid AND
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gEfiTimerArchProtocolGuid AND
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gEfiVariableWriteArchProtocolGuid AND
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gEfiVariableArchProtocolGuid AND
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gEfiWatchdogTimerArchProtocolGuid
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