Re: [PATCH v6 02/12] Halt vcpu if page it tries to access isswapped out.

[Gleb Natapov]

On Sun, Oct 10, 2010 at 05:56:31PM +0200, Avi Kivity wrote:
>  On 10/10/2010 05:55 PM, Avi Kivity wrote:
> >>There is special completion that tells guest to wake all sleeping tasks
> >>on vcpu. It is delivered after migration on the destination.
> >>
> >>
> >
> >Yes, I saw.
> >
> >What if you can't deliver it?  is it possible that some other vcpu
> >will start receiving apfs that alias the old ones?  Or is the
> >broadcast global?
> >
> 
> And, is the broadcast used only for migrations?
> 
Any time apf is enabled on vcpu broadcast is sent to the vcpu. Guest should be
careful here and do not write to apf msr without a reason.

--
			Gleb.
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