On Sat, Apr 16, 2011 at 06:09:17PM +0200, Jan Kiszka wrote: > On 2011-03-25 09:44, Joerg Roedel wrote: > > + tsc_delta = !vcpu->arch.last_guest_tsc ? 0 : > > + tsc - vcpu->arch.last_guest_tsc; > This patch appears to cause troubles to Linux guests on TSC clocksource > and APIC highres timer. The first boot after qemu start is always fine, > but after a reboot the guest timer appears to fire incorrectly or even > not at all. > > Was this patch tested with a guest reboot scenario as well? Does it > account for the TSC being reset to 0 on reboot? Hmm, probably the last_guest_tsc is not updated correctly in this scenario. I will have a look tomorrow. Joerg -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
