Messages in this thread | | | Date | Tue, 14 May 2013 08:59:44 -0700 | From | John Stultz <> | Subject | Re: [Xen-devel] [PATCH 3/3] x86/xen: sync the CMOS RTC as well as the Xen wallclock |
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On 05/14/2013 12:57 AM, Jan Beulich wrote: >>>> On 14.05.13 at 02:52, John Stultz <john.stultz@linaro.org> wrote: >> Honestly, it seems a little strange to me. If you're running as dom0, >> why does HYPERVISOR_dom0_op() not cause the hypervisor to set the cmos >> its virtualizing? This seems to mess with the proper virtualization >> layering. > Thy hypervisor tries to control as little system and peripheral devices > as possible, and the CMOS (including the clock) is among those not > controlled by it, but by Dom0.
Huh. So what does calling HYPERVISOR_dom0_op do then?
Either way, I don't have the context to insightfully review this, so I'll want this to get some Acked-bys from additional Xen folks before I queue it.
thanks -john
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