Glauber de Oliveira Costa wrote: > Hi folks, > > A lot of time has been elapsed since I last sent a version of kvm clock, > with a lot of things in the middle, including my vacations and a nasty bug > in the clock itself ;-) > > Here it is a new version. I'm following avi's last suggestion of using an msr > to make it more migration-proof. If it's not approved, we can easily switch > back > to the hypercall mechanism. That's the easy part ;-) > > Clock updates are done every time we're scheduled. It is _not_ enough to check > if we're changing cpus, because the tsc will change its frequency when the > cpu is > idle (if using the mwait idle). So after a long idle period, one cpu will end > up stepping > ahead causing a backward time (remember the bug I talked about? :-) ) > > As I fell it ready for inclusion (which obviously does not mean it is > perfect, nor that > I don't value any further comments ), I'm also posting the userspace patches > in a separate > series that will follow shortly. > >
This patch series is looking good. I like the switch to an MSR. Regards, Anthony Liguori ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
