Re: [PATCH 2/3] x86: x2apic/cluster: Make use of lowest prioritydelivery mode

From: Cyrill Gorcunov
Date: Fri May 18 2012 - 11:51:20 EST


On Fri, May 18, 2012 at 05:42:37PM +0200, Alexander Gordeev wrote:
> > Hi Alexander,
> >
> > I'm a bit confused, we do compose destination id from target cpumask
> > and send one ipi per _cluster_ with all cpus belonging to this cluster
> > OR'ed. So if my memory doesn't betray me all specified cpus in cluster
> > should obtain this message. Thus I'm wondering where do you find that
> > only one apic obtains ipi? (note i don't have the real physical
> > machine with x2apic enabled handy to test, so please share
> > the experience).
>
> Cyrill,
>
> This patchset is not about IPIs at all. It is about interrupts coming from
> IO-APICs.

Ah, you mean io-apic here. I'll try to find some time tonight/tomorrow-morning
for review. Thanks!

Cyrill
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