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OvmfPkg: Use NestedInterruptTplLib in nested interrupt handlers 

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>
This commit is contained in:
Michael Brown 2022-12-09 10:20:27 +00:00 committed by mergify[bot]
parent a24fbd6061
commit a086f4a63b
12 changed files with 22 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
OvmfPkg/8254TimerDxe/8254Timer.inf
View File

@ -24,6 +24,7 @@
UefiBootServicesTableLib
BaseLib
DebugLib
NestedInterruptTplLib
UefiDriverEntryPoint
IoLib

9
OvmfPkg/8254TimerDxe/Timer.c
View File

@ -6,6 +6,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/NestedInterruptTplLib.h>
#include "Timer.h"
//
@ -76,9 +78,10 @@ TimerInterruptHandler (
IN EFI_SYSTEM_CONTEXT SystemContext
)
{
EFI_TPL OriginalTPL;
STATIC NESTED_INTERRUPT_STATE NestedInterruptState;
EFI_TPL OriginalTPL;
OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);
OriginalTPL = NestedInterruptRaiseTPL ();
mLegacy8259->EndOfInterrupt (mLegacy8259, Efi8259Irq0);
@ -89,7 +92,7 @@ TimerInterruptHandler (
mTimerNotifyFunction (mTimerPeriod);
}
gBS->RestoreTPL (OriginalTPL);
NestedInterruptRestoreTPL (OriginalTPL, SystemContext, &NestedInterruptState);
}
/**

1
OvmfPkg/AmdSev/AmdSevX64.dsc
View File

@ -355,6 +355,7 @@
PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
CpuPageTableLib|UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableLib.inf
MpInitLib|UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
NestedInterruptTplLib|OvmfPkg/Library/NestedInterruptTplLib/NestedInterruptTplLib.inf
QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
QemuLoadImageLib|OvmfPkg/Library/GenericQemuLoadImageLib/GenericQemuLoadImageLib.inf

1
OvmfPkg/CloudHv/CloudHvX64.dsc
View File

@ -406,6 +406,7 @@
PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
CpuPageTableLib|UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableLib.inf
MpInitLib|UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
NestedInterruptTplLib|OvmfPkg/Library/NestedInterruptTplLib/NestedInterruptTplLib.inf
QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
QemuLoadImageLib|OvmfPkg/Library/X86QemuLoadImageLib/X86QemuLoadImageLib.inf

1
OvmfPkg/IntelTdx/IntelTdxX64.dsc
View File

@ -315,6 +315,7 @@
PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
CpuPageTableLib|UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableLib.inf
MpInitLib|UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
NestedInterruptTplLib|OvmfPkg/Library/NestedInterruptTplLib/NestedInterruptTplLib.inf
QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
QemuLoadImageLib|OvmfPkg/Library/X86QemuLoadImageLib/X86QemuLoadImageLib.inf

9
OvmfPkg/LocalApicTimerDxe/LocalApicTimerDxe.c
View File

@ -8,6 +8,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/NestedInterruptTplLib.h>
#include "LocalApicTimerDxe.h"
//
@ -58,9 +60,10 @@ TimerInterruptHandler (
IN EFI_SYSTEM_CONTEXT SystemContext
)
{
EFI_TPL OriginalTPL;
STATIC NESTED_INTERRUPT_STATE NestedInterruptState;
EFI_TPL OriginalTPL;
OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);
OriginalTPL = NestedInterruptRaiseTPL ();
SendApicEoi ();
@ -71,7 +74,7 @@ TimerInterruptHandler (
mTimerNotifyFunction (mTimerPeriod);
}
gBS->RestoreTPL (OriginalTPL);
NestedInterruptRestoreTPL (OriginalTPL, SystemContext, &NestedInterruptState);
}
/**

1
OvmfPkg/LocalApicTimerDxe/LocalApicTimerDxe.inf
View File

@ -27,6 +27,7 @@
UefiBootServicesTableLib
BaseLib
DebugLib
NestedInterruptTplLib
UefiDriverEntryPoint
LocalApicLib

1
OvmfPkg/Microvm/MicrovmX64.dsc
View File

@ -405,6 +405,7 @@
PciExpressLib|OvmfPkg/Library/BaseCachingPciExpressLib/BaseCachingPciExpressLib.inf
CpuPageTableLib|UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableLib.inf
MpInitLib|UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
NestedInterruptTplLib|OvmfPkg/Library/NestedInterruptTplLib/NestedInterruptTplLib.inf
QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
QemuLoadImageLib|OvmfPkg/Library/X86QemuLoadImageLib/X86QemuLoadImageLib.inf

1
OvmfPkg/OvmfPkgIa32.dsc
View File

@ -410,6 +410,7 @@
!endif
PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
MpInitLib|UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
NestedInterruptTplLib|OvmfPkg/Library/NestedInterruptTplLib/NestedInterruptTplLib.inf
QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
QemuLoadImageLib|OvmfPkg/Library/X86QemuLoadImageLib/X86QemuLoadImageLib.inf

1
OvmfPkg/OvmfPkgIa32X64.dsc
View File

@ -416,6 +416,7 @@
PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
CpuPageTableLib|UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableLib.inf
MpInitLib|UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
NestedInterruptTplLib|OvmfPkg/Library/NestedInterruptTplLib/NestedInterruptTplLib.inf
QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
QemuLoadImageLib|OvmfPkg/Library/X86QemuLoadImageLib/X86QemuLoadImageLib.inf

1
OvmfPkg/OvmfPkgX64.dsc
View File

@ -436,6 +436,7 @@
PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
CpuPageTableLib|UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableLib.inf
MpInitLib|UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
NestedInterruptTplLib|OvmfPkg/Library/NestedInterruptTplLib/NestedInterruptTplLib.inf
QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
QemuLoadImageLib|OvmfPkg/Library/X86QemuLoadImageLib/X86QemuLoadImageLib.inf

1
OvmfPkg/OvmfXen.dsc
View File

@ -341,6 +341,7 @@
PciLib|OvmfPkg/Library/DxePciLibI440FxQ35/DxePciLibI440FxQ35.inf
CpuPageTableLib|UefiCpuPkg/Library/CpuPageTableLib/CpuPageTableLib.inf
MpInitLib|UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
NestedInterruptTplLib|OvmfPkg/Library/NestedInterruptTplLib/NestedInterruptTplLib.inf
QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/DxeQemuFwCfgS3LibFwCfg.inf
[LibraryClasses.common.UEFI_APPLICATION]