On Fri, Feb 11, 2011 at 11:12 AM, Stefan G. Weichinger <li...@xunil.at> wrote: > > Greets, > > does anyone else run KVM on gentoo as well? > > I delivered a amd64-server these days and a Win7-pro-guest runs on it. > > Now they tell me they have clock issues in the guest :-( > > I found > > http://docs.fedoraproject.org/en-US/Fedora/13/html/Virtualization_Guide/chap-Virtualization-KVM_guest_timing_management.html > > and ran "bcdedit /set {default} USEPLATFORMCLOCK on", didn't help, even > after reboot. Does it really have to say "{default}" ?? > > I don't know where to start. > > The host kernel provides /dev/rtc, does currently have CPU_FREQ=y, but > afai understand I don't use that behavior (no driver or governor loaded). > > Is CONFIG_HPET needed? -> > > # grep -i hpet .config > CONFIG_HPET_TIMER=y > CONFIG_HPET_EMULATE_RTC=y > # CONFIG_HPET is not set > > - > > A kind of workaround is maybe using ntp in the guest? > I will try that asap. > > Thanks for any help on this! > > Stefan > >
Hi, I use kvm on gentoo, I really don't use the clock on the windows guests (I don't use windows vm) :). But I could guess that the issue might be with localtime, so you could try using "-rtc base=localtime" parameter with starting the windows host. Best regards Petri
