RE: [Xen-devel] Page fault handler preemptable?

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>From: Mike Sun
>Sent: 2008年9月24日 5:04
>
>Sorry for such a basic question... but is the page fault handler
>routine in the hypervisor preemptable?  For example, let's say guest
>domain A is being live migrated.  As it's running, a page fault
>occurs.  Can the page fault handler be preempted in the middle by say
>the live migration process in dom0?
>

No. Xen itself is not preemptive, and schedule only happens in
the boundary just before returning to guest context.

Thanks,
Kevin

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel