Re: [PATCH 03/11] Handle asynchronous page fault in a PV guest.

From: Marcelo Tosatti
Date: Tue Nov 03 2009 - 09:14:42 EST

On Sun, Nov 01, 2009 at 01:56:22PM +0200, Gleb Natapov wrote:
> Asynchronous page fault notifies vcpu that page it is trying to access
> is swapped out by a host. In response guest puts a task that caused the
> fault to sleep until page is swapped in again. When missing page is
> brought back into the memory guest is notified and task resumes execution.

Can't you apply this to non-paravirt guests, and continue to deliver
interrupts while waiting for the swapin?

It should allow the guest to schedule a different task.

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