Re: [Xen-devel] [PATCH 3/3] x86/xen: sync the CMOS RTC as wellas the Xen wallclock

From: Jan Beulich
Date: Tue May 14 2013 - 03:57:48 EST


>>> On 14.05.13 at 02:52, John Stultz <john.stultz@xxxxxxxxxx> 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.

Jan

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