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From: Marc Zyngier <maz@kernel.org>
To: Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>
Cc: "linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	Dmytro Terletskyi <Dmytro_Terletskyi@epam.com>
Subject: Re: KVM: Nested VGIC emulation leads to infinite IRQ exceptions
Date: Mon, 03 Nov 2025 17:08:30 +0000	[thread overview]
Message-ID: <86ldknujqp.wl-maz@kernel.org> (raw)
In-Reply-To: <87bjmrprvq.fsf@epam.com>

On Tue, 30 Sep 2025 22:11:54 +0100,
Volodymyr Babchuk <Volodymyr_Babchuk@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.


      parent reply	other threads:[~2025-11-03 17:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-30 21:11 KVM: Nested VGIC emulation leads to infinite IRQ exceptions Volodymyr Babchuk
2025-10-01  7:23 ` Marc Zyngier
2025-10-02 12:29   ` Volodymyr Babchuk
2025-10-02 14:28     ` Marc Zyngier
2025-10-02 15:08       ` Volodymyr Babchuk
2025-10-01 16:17 ` Marc Zyngier
2025-11-03 17:08 ` Marc Zyngier [this message]

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