Re: [PATCHv3] KVM: optimize apic interrupt delivery

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On 09/16/2012 01:56 PM, Michael S. Tsirkin wrote:
> On Thu, Sep 13, 2012 at 12:36:30PM +0200, Jan Kiszka wrote:
>> On 2012-09-13 12:33, Gleb Natapov wrote:
>> >>
>> >> So, this can be the foundation for direct MSI delivery as well, right?
>> >>
>> > What do you mean by "direct MSI delivery"? kvm_irq_delivery_to_apic() is
>> > called by MSI. If you mean delivery from irq context, then yes, mst
>> > plans to do so.
>> 
>> Yes, that's what I was aiming at.
>> 
>> Jan
> 
> Avi, I've been debating with self whether it's still worth it
> to bounce interrupts that don't get optimized such as
> broadcasts, out to thread? Maybe we can just do direct delivery
> unconditionally? Guests don't seem to use broadcasts at all widely ...

Malicious guests do, all the time.

-- 
error compiling committee.c: too many arguments to function
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