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https://github.com/tianocore/edk2
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02fa0cb911
Prevent recursive invocation of the PEI Report Status Code (RSC) Router that can lead to system hang or unexpected re-entrancy behavior during early boot. The defect was observed when PEI modules reported status codes while the router was already processing a previous request. This patch aligns PEI behavior with the robust RSC routing mechanisms already used in DXE and Runtime phases by adding a lightweight recursion guard to the PEI router. This ensures consistent behavior across boot stages and improves early-boot stability. Signed-off-by: Jared Pan <jared.pan@dell.com>
56 lines
1.4 KiB
INI
56 lines
1.4 KiB
INI
## @file
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# Report Status Code Router PEIM which produces Report Stataus Code Handler PPI and Status Code PPI.
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#
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# Copyright (c) 2009 - 2018, Intel Corporation. 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 = 0x00010005
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BASE_NAME = ReportStatusCodeRouterPei
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MODULE_UNI_FILE = ReportStatusCodeRouterPei.uni
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FILE_GUID = A3610442-E69F-4DF3-82CA-2360C4031A23
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MODULE_TYPE = PEIM
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VERSION_STRING = 1.0
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ENTRY_POINT = GenericStatusCodePeiEntry
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#
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# The following information is for reference only and not required by the build tools.
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#
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# VALID_ARCHITECTURES = IA32 X64 EBC (EBC is only for build)
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#
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[Sources]
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ReportStatusCodeRouterPei.c
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ReportStatusCodeRouterPei.h
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[Packages]
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.dec
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[LibraryClasses]
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PeimEntryPoint
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PeiServicesLib
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DebugLib
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HobLib
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SynchronizationLib
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[Guids]
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## PRODUCES ## HOB
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## CONSUMES ## HOB
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gStatusCodeCallbackGuid
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[Ppis]
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gEfiPeiRscHandlerPpiGuid ## PRODUCES
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gEfiPeiStatusCodePpiGuid ## PRODUCES
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[Depex]
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TRUE
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[UserExtensions.TianoCore."ExtraFiles"]
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ReportStatusCodeRouterPeiExtra.uni
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