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

[Avi Kivity]

 On 10/07/2010 03:24 PM, Rik van Riel wrote:
> On 10/07/2010 05:50 AM, Avi Kivity wrote:
>
> > > +static bool can_do_async_pf(struct kvm_vcpu *vcpu)
> > > +{
> > > + if (unlikely(!irqchip_in_kernel(vcpu->kvm) ||
> > > + kvm_event_needs_reinjection(vcpu)))
> > > + return false;
> > > +
> > > + return kvm_x86_ops->interrupt_allowed(vcpu);
> > > +}
> >
> > Strictly speaking, if the cpu can handle NMIs it can take an apf?
>
> Strictly speaking, yes.
>
> However, it may not be able to DO anything with it, since
> it won't be able to reschedule the context it's running :)

I was thinking about keeping the watchdog nmi handler responsive.

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

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