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Re: [Xen-devel] Fwd: Display/Console for HVM domUs
- To: "Daniel P. Berrange" <berrange@xxxxxxxxxx>
- From: jdsw <jdsw2002@xxxxxxxxx>
- Date: Tue, 14 Nov 2006 18:07:17 -0800 (PST)
- Cc: xendevel <xen-devel@xxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 14 Nov 2006 18:07:29 -0800
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Thanks Daniel. This clarifies.
I will give vnc stuff a shot.
It would be convenient to have vnc port number/display number available in the XML-RPC.
Thanks
/Jd
"Daniel P. Berrange" <berrange@xxxxxxxxxx> wrote: On Tue, Nov 14, 2006 at 04:52:41PM -0800, jdsw wrote:
> Forwarding to dev list.
> /Jd
>
> jdsw wrote: Date: Thu, 9 Nov 2006 18:37:07 -0800 (PST)
> From: jdsw
> Subject: Display/Console for HVM domUs
> To: XenUsers
>
> Hi
> I have couple of questions on displays under HVM
> 1. When I kill window of DomU with sdl=1, the dom also dies... Is this a bug ?
> or expected behaviour. (quite annoying)
Its expected - whether its desirable
is a completely different matter. I question
the usefullness of SDL at all because of its dependance on having a connection to
the X server available form the shell in which you launch the guest. I can't
imagine how this will ever work once XenD has support for managing inactive domains
and stopping/starting them via the XML-RPC interface - since you'll not even have
the SSH forwarded display anymore.
> 2. How do I determine the display number for DomUs running with vnc ? For me,
> the vnc display numbers are determined by the order in which the domUs were
> started. This is highly inconveniernt. I tried the vncdisplay=5 in the domu
> config file but it does not help.
If you specify 'vncunused=1' in the config file it will allocate the first unused
port number counting from 5900. If you want to specify an explicit display then
set 'vncdisplay=5' and 'vncunused=0'.
> Also, xm list -l domname also
does not contain any indication of what display
> is being used ? I want to programatically determined the display number.
The info on what port is being listened on is not exposed by either xm or XenD.
Instead it is hidden away in xenstore.
# xenstore-ls /local/domain/1 | grep vnc
vnc-port = "5902"
If you have libvirt installed, then it is also available when using virsh
command to view an XML dump of a domain, eg
# virsh dumpxml demovm | grep graphics
Regards,
Dan.
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