[CentOS-virt] hot-plug vfb on Xen domU?

Pasi Kärkkäinen

pasik at iki.fi
Sat Jan 15 23:12:34 UTC 2011

On Tue, Jan 11, 2011 at 01:16:28PM +0100, Chris Wik wrote:
> I want to give my clients access to their Xen domU consoles using VNC. This works great using vfb device configured as type=vnc.
> However I have 2 problems:
> * I can't figure out how I can add a vfb device to a running domain without restarting it (I have 100+ domU's I want to enable this on, and want to avoid restarting them all if possible)

I've never heard about vfb hotplug.. 

> * Related, I can't figure out how I can change the VNC password without restarting the domU, as the password is specified in the vfb config.
> Is what I am trying to do possible? How?

I wonder if the password is stored inside the qemu-dm process (vnc server),
or in xenstore.. 

If it's in xenstore then it's easy to change it.

-- Pasi

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