a086f4a63b
Prevent stack underrun in the event of a timer interrupt storm in
LocalApicTimerDxe and 8254TimerDxe interrupt handlers by using the
helper functions provided by NestedInterruptTplLib.
This fixes the same problem as addressed in commit 239b50a86
("OvmfPkg: End timer interrupt later to avoid stack overflow under
load"), but does so without breaking nested timer interrupts.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2815
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4162
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Acked-by: Laszlo Ersek <lersek@redhat.com>
45 lines
1.1 KiB
INI
45 lines
1.1 KiB
INI
## @file
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# Local APIC timer driver that provides Timer Arch protocol.
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# PcdFSBClock is defined in MdePkg and it should be set by the consumer.
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#
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# Copyright (c) 2005 - 2019, Intel Corporation. All rights reserved.<BR>
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# Copyright (c) 2019, Citrix Systems, Inc.
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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 = 0x00010005
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BASE_NAME = LocalApicTimerDxe
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FILE_GUID = 52fe8196-f9de-4d07-b22f-51f77a0e7c41
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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ENTRY_POINT = TimerDriverInitialize
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[Packages]
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MdePkg/MdePkg.dec
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UefiCpuPkg/UefiCpuPkg.dec
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OvmfPkg/OvmfPkg.dec
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[LibraryClasses]
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UefiBootServicesTableLib
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BaseLib
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DebugLib
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NestedInterruptTplLib
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UefiDriverEntryPoint
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LocalApicLib
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[Sources]
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LocalApicTimerDxe.h
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LocalApicTimerDxe.c
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[Protocols]
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gEfiCpuArchProtocolGuid ## CONSUMES
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gEfiTimerArchProtocolGuid ## PRODUCES
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[Pcd]
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gEfiMdePkgTokenSpaceGuid.PcdFSBClock ## CONSUMES
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[Depex]
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gEfiCpuArchProtocolGuid
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