linux-kernel - Re: KVM: arm64: vgic-its: Return -ENXIO to invalid KVM_DEV_ARM_VGIC_GRP

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Message-ID: <a0476a256e35345c4ca874268dd9d51883fe0c61.camel@infradead.org>
Date: Tue, 22 Jul 2025 12:33:52 +0200
From: David Woodhouse <dwmw2@...radead.org>
To: Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>, 
 Joey Gouly <joey.gouly@....com>, Suzuki K Poulose <suzuki.poulose@....com>,
 Zenghui Yu <yuzenghui@...wei.com>, Catalin Marinas
 <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Jing Zhang
 <jingzhangos@...gle.com>, Kunkun Jiang <jiangkunkun@...wei.com>, Paolo
 Bonzini <pbonzini@...hat.com>, Sebastian Ott <sebott@...hat.com>, Maxim
 Levitsky <mlevitsk@...hat.com>, Keisuke Nishimura
 <keisuke.nishimura@...ia.fr>, linux-arm-kernel@...ts.infradead.org, 
 kvmarm@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: KVM: arm64: vgic-its: Return -ENXIO to invalid
 KVM_DEV_ARM_VGIC_GRP_CTRL attrs

On Mon, 2025-06-23 at 15:22 +0200, David Woodhouse wrote:
> From: David Woodhouse <dwmw@...zon.co.uk>
> 
> A preliminary version of a hack to invoke unmap_all_vpes() from an ioctl
> didn't work very well. We eventually determined this was because we were
> invoking it on the wrong file descriptor, but not getting an error.
> 
> Signed-off-by: David Woodhouse <dwmw@...zon.co.uk>

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