Re: [PATCH] Documentation: KVM: Fix the GICv5 KVM_IRQ_LINE PPI range

Karl Mehltretter <[email protected]>
Newsgroups org.kernel.vger.kvm,dev.linux.lists.kvmarm,org.kernel.vger.linux-doc,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
On Sat, Aug 15, 2026 at 11:57:24AM +0100, Marc Zyngier wrote:
> > +	       in-kernel GICv5: PPI, irq_id between 0 and 63 (incl.), and
> 
> No. Please understand the difference between *implementation* and
> *architecture*.

Got it. That distinction could perhaps be clearer in api.rst, but 0-127
is intentional, not a missed doc update.

> > +      Userspace must query this attribute after initializing the VGIC with
> > +      KVM_DEV_ARM_VGIC_CTRL_INIT.
> > +
> 
> Must? Why? Userspace can perfectly live with ever querying this.

Hah, yes. I meant "if you query this, you must do so after init
to get anything other than zero"

Please consider this patch withdrawn.

Thanks,
Karl
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