[libvirt] [PATCH] Xen: Fix <clock> handling

[Philipp Hahn]

Hello Daniel,

"Daniel P. Berrange" <berrange at redhat.com> wrote:

> On Tue, Jan 17, 2012 at 05:02:14PM +0100, Philipp Hahn wrote:
>> For PV, Xen implements the <clock offset='utc'> and <clock
>> offset='localtime'> behaviour, while for HV it implements <clock
>> offset='variable'>.
>> This difference is important for domUs, which switch daylight saving on
>> there own, since the state is kept inside the VM and must be in sync
>> with the RTC provided by Xen.
>
> What versions of Xen is that true for ?

I tested xen-3.4 and 4.1 and had a short look at 3.2, which all seemd  
to have that behaviour.

> I didn't think that old
> versions behaved this way for HVM. The libvirt Xen driver is still
> intended to support the RHEL5 vintage Xen code (which is based on
> 3.0.3)

I'll try to install RHEL5 and take a look, but not before friday.

Sincerely
Philipp