On Sun, May 25, 2008 at 03:31:03PM +0300, Avi Kivity wrote: > Marcelo Tosatti wrote: > >There's not much point in exiting for pmtimer reads, since it runs at a > >fixed clock rate and its start value is undefined. > > > > On a migration farm with lots of different hardware, eventually all > guests will have migrated and none of them will be able to use the > passthrough port. > > What about emulating pmtimer in the host kernel instead of userspace? > It increases the hit from 1 exit to 3 exits, but they're much faster exits.
I agree, even began writing it, but I think the non-passthrough case could be optimized later. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
