Re: [PATCH 0/8] KVM: minor APIC fixes and cleanups

[Paolo Bonzini]

On 30/01/2015 16:20, Radim KrÄmÃÅ wrote:
>> > +	/* XXX: A superset of x2APIC broadcasts is fine in practice as long as
>> > +	 * we don't support APIC ID > 0xfeffffff.
>> > +	 */
>> > 
>> > It's ugly. :)
> Yeah, there is: don't deliver x2APIC broadcasts to xAPIC.
> (I'm not even sure if it is correct ...)
> 
> Without that delivery, we could do something like
>   if (irq->dest_id == (x2apic_ipi ? X2APIC_BROADCAST : APIC_BROADCAST))

Nadav, do you know what real hardware does?

Paolo
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