On Tue, Mar 09, 2010 at 04:50:29PM +0200, Avi Kivity wrote:
> On 03/09/2010 04:09 PM, Gleb Natapov wrote:
> >Currently when string instruction is only partially complete we go back
> >to a guest mode, guest tries to reexecute instruction and exits again
> >and at this point emulation continues. Avoid all of this by restarting
> >instruction without going back to a guest mode.
>
> What happens if rcx is really big? Going back into the guest gave
> us a preemption point.
>
Two solutions. We can check if reschedule is required and yield cpu if
needed. Or we can enter guest from time to time.
--
Gleb.
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