Files
system76-edk2/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf
Ard Biesheuvel 2c0d39ac47 MdeModulePkg/DxeCapsuleLibFmp: clone ESRT for runtime access
The DxeCapsuleLibFmp code accesses the ESRT table to decide whether
a certain capsule is an FMP capsule. Since the UEFI spec mandates
that the ESRT resides in EfiBootServicesData memory, this results
in problems at OS runtime, since the firmware implementation itself
cannot access memory that has not been virtually remapped.

So let's take a private copy of the ESRT at ReadyToBoot, and store
it in EfiRuntimeServicesData memory. The ESRT's size is order 10s
of bytes so the memory footprint is going to be negligigble.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2019-04-23 18:15:00 +02:00

74 lines
2.4 KiB
INI

## @file
# Capsule library instance for DXE_RUNTIME_DRIVER.
#
# Capsule library instance for DXE_RUNTIME_DRIVER module types.
#
# Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = DxeRuntimeCapsuleLib
MODULE_UNI_FILE = DxeRuntimeCapsuleLib.uni
FILE_GUID = 19BE1E4B-1A9A-44c1-8F12-32DD0470516A
MODULE_TYPE = DXE_RUNTIME_DRIVER
VERSION_STRING = 1.0
LIBRARY_CLASS = CapsuleLib|DXE_RUNTIME_DRIVER
CONSTRUCTOR = DxeCapsuleLibConstructor
CONSTRUCTOR = DxeRuntimeCapsuleLibConstructor
DESTRUCTOR = DxeCapsuleLibDestructor
DESTRUCTOR = DxeRuntimeCapsuleLibDestructor
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 EBC
#
[Sources]
DxeCapsuleLib.c
DxeCapsuleProcessLibNull.c
DxeCapsuleReportLibNull.c
DxeCapsuleRuntime.c
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
[LibraryClasses]
BaseLib
BaseMemoryLib
DebugLib
MemoryAllocationLib
DxeServicesTableLib
UefiBootServicesTableLib
DevicePathLib
ReportStatusCodeLib
PrintLib
HobLib
BmpSupportLib
[Protocols]
gEsrtManagementProtocolGuid ## CONSUMES
gEfiFirmwareManagementProtocolGuid ## CONSUMES
gEdkiiVariableLockProtocolGuid ## SOMETIMES_CONSUMES
gEdkiiFirmwareManagementProgressProtocolGuid ## SOMETIMES_CONSUMES
[Guids]
gEfiFmpCapsuleGuid ## SOMETIMES_CONSUMES ## GUID
gWindowsUxCapsuleGuid ## SOMETIMES_CONSUMES ## GUID
gEfiSystemResourceTableGuid ## SOMETIMES_CONSUMES ## GUID
## SOMETIMES_CONSUMES ## Variable:L"CapsuleMax"
## SOMETIMES_PRODUCES ## Variable:L"CapsuleMax"
gEfiCapsuleReportGuid
gEfiCapsuleVendorGuid ## SOMETIMES_CONSUMES ## Variable:L"CapsuleUpdateData"
gEfiEndOfDxeEventGroupGuid ## CONSUMES ## Event
gEfiEventReadyToBootGuid ## CONSUMES ## Event
gEfiEventVirtualAddressChangeGuid ## CONSUMES ## Event
[Depex]
gEfiVariableWriteArchProtocolGuid