Re: [KVM PATCH v6] kvm: add support for irqfd

[Avi Kivity]

Gregory Haskins wrote:
> (Applies to kvm.git:833367b57)
>
> KVM provides a complete virtual system environment for guests, including
> support for injecting interrupts modeled after the real exception/interrupt
> facilities present on the native platform (such as the IDT on x86).
> Virtual interrupts can come from a variety of sources (emulated devices,
> pass-through devices, etc) but all must be injected to the guest via
> the KVM infrastructure.  This patch adds a new mechanism to inject a specific
> interrupt to a guest using a decoupled eventfd mechnanism:  Any legal signal
> on the irqfd (using eventfd semantics from either userspace or kernel) will
> translate into an injected interrupt in the guest at the next available
> interrupt window.
>
> I am reasonably satisfied with this series, so Avi please consider for
> inclusion.
>   

Looks good.  Please add a way to disassociate an irqfd (for hotunplug) 
and I'll merge.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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