Re: [v3 13/26] KVM: Define a new interface kvm_find_dest_vcpu() for VT-d PI

[Yong Wang]

On Mon, Dec 22, 2014 at 12:23:36PM +0100, Paolo Bonzini wrote:
> 
> 
> On 22/12/2014 12:17, Wu, Feng wrote:
> >> Yes, and those need not be accelerated.  But what if you set
> >> affinity to a single CPU?
> >
> > How do I set affinity to a single CPU if guest configure a lowest
> > priority interrupt? Thanks a lot!
> 
> I mean if the guest (via irqbalance and /proc/irq/) configures affinity
> to a single vCPU.  In that case, you can use PI.
> 

The problem is we still need to support PI with lowest priority delivery mode
even if guest does not configure irq affinity via /proc/irq/. Don't we?

Thanks
-Yong

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