Re: [PATCH][KVM][retry 3] Add support for Pause Filtering to AMDSVM

[Avi Kivity]

Peter Zijlstra wrote:
> > > That said, I still thoroughly dislike this whole approach.
> > >   
> > >       
> > Can you explain why?  We have a thread that has detected that it's 
> > spinning.  Keeping on spinning is a waste of cpu time.  Why not let 
> > something else use the cpu?
> >     
>
> Because its a polling interface. I much prefer it if we were to get a
> wakeup notification when the vcpu holding the lock releases it.
>   

It's a fully virtualized guest.  There's no way to get this without 
patching the guest kernel.

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

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