KVM: Nested VGIC emulation leads to infinite IRQ exceptions

[Marc Zyngier]

On Tue, 30 Sep 2025 22:11:54 +0100,
Volodymyr Babchuk <Volodymyr_Babchuk at epam.com> wrote:
> 
> 
> Hi all,
> 
> We are trying to run Xen as KVM nested hypervisor (again!) and we have
> encountered strange issue with GIC nested emulation. I am certain that
> we'll dig to the root cause, but probably someone on the ML will save us
> a couple of days of debugging by providing with some insights.

[...]

FWIW, I have just posted a (large) series[1] that aims at fixing the
issue you have reported. I'd appreciate it if you could give it a go
and report whether this helps addressing it.

Thanks,

	M.

[1] https://lore.kernel.org/all/20251103165517.2960148-1-maz@kernel.org/

-- 
Without deviation from the norm, progress is not possible.