kvm-ow...@vger.kernel.org wrote on 07/06/2012 15:19:14:

> >> The guest can still mask interrupts above that limit via cli, no?
> >> So the only measures that save us from CPU hogging guests are the
> >> preemption timer and kicking via NMI. Or what am I missing?
> >
> > Nothing :) As we described in the paper, this is what we do to avoid
> > this situation.
>
> So the other measures are redundant, right? They only seem to complicate
> the approach without any gain, that is my point.

We described in the paper all the mechanisms we thought could be used.
Which mechanisms are sufficient/preferable/simpler ?  I think we are back
to the KVM<->Linux dependencies and whenever we are talking about
hypervisors in general or a specific implementation for KVM.

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