OVMF can't guarantee that the ASSERT() doesn't happen. Misbehaving
EFI applications can trigger this. So log a warning instead and try
to continue.
Reproducer: Fetch windows 11 22H2 iso image, boot it in qemu with OVMF.
Traced to BootServices->Stall() being called with IPL=TPL_HIGH_LEVEL
and Interrupts /enabled/ while windows is booting.
Cc: Michael Brown <mc...@ipxe.org>
Cc: Laszlo Ersek <ler...@redhat.com>
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
OvmfPkg/Library/NestedInterruptTplLib/Tpl.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/OvmfPkg/Library/NestedInterruptTplLib/Tpl.c
b/OvmfPkg/Library/NestedInterruptTplLib/Tpl.c
index e19d98878eb7..cd65a5c995a0 100644
--- a/OvmfPkg/Library/NestedInterruptTplLib/Tpl.c
+++ b/OvmfPkg/Library/NestedInterruptTplLib/Tpl.c
@@ -39,7 +39,15 @@ NestedInterruptRaiseTPL (
//
ASSERT (GetInterruptState () == FALSE);
InterruptedTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);
- ASSERT (InterruptedTPL < TPL_HIGH_LEVEL);
+ if (InterruptedTPL >= TPL_HIGH_LEVEL) {
+ DEBUG ((
+ DEBUG_WARN,
+ "%a: Called at IPL %d, trying to fixup and continue...\n",
+ __func__,
+ InterruptedTPL
+ ));
+ InterruptedTPL = TPL_HIGH_LEVEL - 1;
+ }
return InterruptedTPL;
}
--
2.40.0
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