Re: [PATCH v6 08/12] Handle async PF in a guest.

[Rik van Riel]

On 10/07/2010 01:18 PM, Avi Kivity wrote:
> On 10/07/2010 07:14 PM, Gleb Natapov wrote:

> > Host side keeps track of outstanding apfs and will not send apf for the
> > same phys address twice. It will halt vcpu instead.
>
> What about different pages, running the scheduler code?
>
> Oh, and we'll run the scheduler recursively.

When preempt is disabled in the guest, it will not invoke
the "reschedule for apf" code, but it will simply turn
into a normal page fault.

Last I looked, the scheduler code disabled preempt (for
obvious reasons).

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