Re: [PATCH 0/2] eventfd: new EFD_STATE flag

[Avi Kivity]

On 08/20/2009 08:55 PM, Michael S. Tsirkin wrote:
> > While we could argue about this my feeling is that we should drop this,
> > at least until we can quantify what benefit it has and whether there are
> > any Davide-acceptable alternatives.
> >
> > In the meanwhile, we can let vhost-net support edge-triggered interrupts
> > only, let qemu terminate those eventfds and convert then to
> > level-triggered interrupts (which it can then inject using the existing
> > ioctl).  It will keep vhost-net and kvm simpler at the cost of some
> > performance penalty to guests using level interrupts.  These suck anyway
> > so we'll point users at msi.
> >      
> I thought the point was to move assigned devices out of KVM?
>    

Grr.  Forgot about that.

That's much more important.

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

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