Re: [Qemu-devel] Re: [PATCH 0/5] Refactor and enhance RTC configuration

[Jamie Lokier <jamie@shareable.org>]

Anthony Liguori wrote:
> >Besides the interface thing, I'm also interesting in comments on the
> >other core idea, the selectable RTC base clock. Do we want this knob? Do
> >we want host_clock unconditionally? Or should the other RTC that
> >currently use the host time already also gain vm_clock support over the
> >time?
> >  
> Hard to say.  Doesn't the rtc keep track of wallclock time even on power 
> off?  I think using host_clock unconditionally does actually make sense.

Sometimes it's useful to offset the emulated clock for one reason or
another, hence the -startdate options.  But having it run at the
correct speed is usually useful :-)

Also, sometimes (due to licenses with wallclock limits) it's useful
for a guest to not see much time pass when the guest is powered off,
although it still needs to be positive.

Will the -startdate functionality be maintained with the RTC changes?

-- Jamie