>>> On 27.10.15 at 06:19, <feng...@intel.com> wrote: >> From: Dario Faggioli [mailto:dario.faggi...@citrix.com] >> Sent: Monday, October 26, 2015 10:40 PM >> In any case, it would have been nice, given the situation, if you'd have put >> a few >> words about, e.g., which solution you ended up implementing and why, either >> in >> the cover or here (e.g., in the '---' area). > > Thanks for the suggestion. As I mentioned before, updating the PI descriptor > needs > to be atomic, I think it should be a little expensive. So doing it every > VM-exit seems > not a good idea to me.
You could check whether any update is needed before doing the (atomic) cmpxchg16b. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
