* PoD operation question
@ 2010-01-25 8:21 Jan Beulich
2010-01-25 9:21 ` Keir Fraser
0 siblings, 1 reply; 4+ messages in thread
From: Jan Beulich @ 2010-01-25 8:21 UTC (permalink / raw)
To: xen-devel
With the balloon driver itself not doing anything special in HVM when
getting loaded, where does the initial ballooning down get initiated? Is
this something the system startup scripts are expected to perform?
Thanks, Jan
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: PoD operation question
2010-01-25 8:21 PoD operation question Jan Beulich
@ 2010-01-25 9:21 ` Keir Fraser
2010-01-25 9:55 ` Jan Beulich
0 siblings, 1 reply; 4+ messages in thread
From: Keir Fraser @ 2010-01-25 9:21 UTC (permalink / raw)
To: Jan Beulich, xen-devel@lists.xensource.com
I believe so yes. The lower memory_target will be written to xenstore at
domain creation, for balloon driver to retrieve and act on when it loads.
-- Keir
On 25/01/2010 08:21, "Jan Beulich" <JBeulich@novell.com> wrote:
> With the balloon driver itself not doing anything special in HVM when
> getting loaded, where does the initial ballooning down get initiated? Is
> this something the system startup scripts are expected to perform?
>
> Thanks, Jan
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: PoD operation question
2010-01-25 9:21 ` Keir Fraser
@ 2010-01-25 9:55 ` Jan Beulich
2010-01-25 13:44 ` Keir Fraser
0 siblings, 1 reply; 4+ messages in thread
From: Jan Beulich @ 2010-01-25 9:55 UTC (permalink / raw)
To: Keir Fraser; +Cc: xen-devel@lists.xensource.com
Your two sentences seem contradictory to me: If it gets handled via
xenstore, then the init scripts shouldn't matter, and the ballooning
should start as soon as the driver loads (since - iirc - watches fire once
when being registered).
Jan
>>> Keir Fraser <keir.fraser@eu.citrix.com> 25.01.10 10:21 >>>
I believe so yes. The lower memory_target will be written to xenstore at
domain creation, for balloon driver to retrieve and act on when it loads.
-- Keir
On 25/01/2010 08:21, "Jan Beulich" <JBeulich@novell.com> wrote:
> With the balloon driver itself not doing anything special in HVM when
> getting loaded, where does the initial ballooning down get initiated? Is
> this something the system startup scripts are expected to perform?
>
> Thanks, Jan
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: PoD operation question
2010-01-25 9:55 ` Jan Beulich
@ 2010-01-25 13:44 ` Keir Fraser
0 siblings, 0 replies; 4+ messages in thread
From: Keir Fraser @ 2010-01-25 13:44 UTC (permalink / raw)
To: Jan Beulich; +Cc: xen-devel@lists.xensource.com
Oh I didn't realise you meant startup scripts within the guest... No, I
believe it works via xenstore, picked up by balloon driver when it first
loads.
-- Keir
On 25/01/2010 09:55, "Jan Beulich" <JBeulich@novell.com> wrote:
> Your two sentences seem contradictory to me: If it gets handled via
> xenstore, then the init scripts shouldn't matter, and the ballooning
> should start as soon as the driver loads (since - iirc - watches fire once
> when being registered).
>
> Jan
>
>>>> Keir Fraser <keir.fraser@eu.citrix.com> 25.01.10 10:21 >>>
> I believe so yes. The lower memory_target will be written to xenstore at
> domain creation, for balloon driver to retrieve and act on when it loads.
>
> -- Keir
>
> On 25/01/2010 08:21, "Jan Beulich" <JBeulich@novell.com> wrote:
>
>> With the balloon driver itself not doing anything special in HVM when
>> getting loaded, where does the initial ballooning down get initiated? Is
>> this something the system startup scripts are expected to perform?
>>
>> Thanks, Jan
>>
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
>
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-01-25 13:44 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2010-01-25 8:21 PoD operation question Jan Beulich
2010-01-25 9:21 ` Keir Fraser
2010-01-25 9:55 ` Jan Beulich
2010-01-25 13:44 ` Keir Fraser
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