Re: [Xen-users] replicating devices in guest domains

["David Goodlad" <dgoodlad@xxxxxxxxx>]

On 4/22/06, Mike A. Kenny <mike@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
> I am trying to use asterisk in a guest domain (for testing only) but there is 
> no /dev/dsp entry. Creating this with mknod does no good either so I figure 
> that xen is imposing some restrictions on the use of devices by guest 
> domains. Where can I find documentation on these restrictions?

You can't just use the device in both your dom0 and domU guests;
multiple drivers hammering at a device would be bad news :)

Anyway, if you want to expose your sound card to a domU, you need to
do PCI passthrough.  This will prevent any dom0 drivers from grabbing
your sound card, and allow a domU guest's driver to do so instead.

I forget the syntax, but a quick google should do the trick!

Dave

--
Dave Goodlad
dgoodlad@xxxxxxxxx or dave@xxxxxxxxxx
http://david.goodlad.ca/

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