[mythtv-users] Xen and Mythbackend help

Jeppe N. Madsen jeppe at ingolfs.dk
Wed Nov 12 20:00:25 UTC 2008

On Tue, 11 Nov 2008, Gerald Brandt wrote:

>  Hi, 
>  I've been trying to set up a Xen DomU for my mythbackend, but I'm
>  having issues with pci passthrough. I know some people here have
>  done it.


>  I'm using Ubuntu 8.04 64 bit as Dom0, and Mythbuntu 8.10 as the
>  Domu.
>  What configurations are you using as the OS for Dom0, and are you
>  passing through (using pciback.hide) a PVR150 card?

I'm using Debian etch for both dom0 & domu. Kernel is
2.6.18-6-xen-amd64, xen is xen-hypervisor 3.0.3-0-4. Works fine. I'm
passing a Nova-T 500 card.

This is my kernel param for dom0:

module          /vmlinuz-2.6.18-6-xen-amd64
root=/dev/mapper/VGSystem-LVdom0 ro console=tty0

And the domu cfg:

pci         = ['01:09.0','01:09.1','01:09.2']

It's been about 8 months since I've set this up (and has run fine
since :-)) but I seem to recall that there were issues with pci
passthrough and  (some) xen versions later than 3.03. But as I said, I
may be wrong.

I would like to upgrade to Xen 3.3 to get the power management,
but I'm a little hesitant since everything works now. But this thread
seem to indicate that just building a new hypervisor would work with
my setup (don't know if I'll get the benefits though)



More information about the mythtv-users mailing list