Re: [PATCH RFC] kvm: enable irq injection from interrupt context

[Avi Kivity]

 On 09/16/2010 03:38 PM, Michael S. Tsirkin wrote:
> >
> >  That's just an implementation detail.  Devices either assert INT# or
> >  they do not.  Tying the wires together constitutes an AND gate.
> >  This gate has to be modelled somewhere, currently it's in qemu's pci
> >  emulation.
>
> Right. kvm in kernel has this as well, we need to keep this in
> kvm kernel if we want to support level with irqfd.

Right, we added the irq_source_id hack for device assignment.

What's wrong with letting userspace mediate this, though?

> Where it does not belong is individual devices: these
> should be able to assert INTx multiple times
> and it should have no effect, as per spec.

Yes.

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

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