[libvirt-users] time setting after suspend/resume
Bill Kenworthy
billk at iinet.net.au
Fri Oct 3 00:57:27 UTC 2014
On 02/10/14 21:02, Eric Blake wrote:
> On 10/02/2014 04:01 AM, Martin Kletzander wrote:
>
>>>> What version of libvirt are you using? Since 1.2.5 there's
>>>> virDomainSetTime() API that can do this and since 1.2.8 it's called
>>>> automatically after resume.
>>>
>>> Umm, I have a problem with that statement. Anything that requires guest
>>> interaction (which guest-agent set-time does) must NOT default to being
>>> automatic; it is only safe to enable if explicitly allowed. What is the
>>> domain XML that must be explicitly set in order to turn on automatic
>>> time-set after resume?
>>>
>>
>> Oh, sorry, my fault. I was under the impression that Michal created
>> the API especially for this purpose, but looking at the code it's not
>> done automatically.
>
> At one point, I seem to recall a proposal of adding an <on_resume> tag
> to domain xml that could explicitly request time resync each time the
> domain is resumed; but I don't know if anyone implemented it yet.
>
Hi Eric, I tried your patch on 1.2.6 ... appeared to work if
qemu-guest-agent was installed, libvirt exited on resume if it wasn't
(both windows and linux VM's) - need to understand the code better as
there were some changes in 1.2.6 that probably impacted it.
BillK
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