Re: [Xen-users] howto bring a soundcard into a domU

["Daniel Bauer" <mlist@xxxxxxxxxxx>]

From: "Todd Deshane"
> On Mon, Dec 22, 2008 at 2:00 AM, Daniel Bauer <mlist@xxxxxxxxxxx> wrote:
> > From: "Todd Deshane"
> > > On Sun, Dec 21, 2008 at 7:11 AM, Daniel Bauer <mlist@xxxxxxxxxxx> wrote:
> > > > Hi @all,
> > > >
> > > > I have many domU on my server and they work fine, some of them have 
> > > > their
> > > > own NICs with the PCI param in the config.
> > > >
> > > > Now I try to bring a soundcard for asterisk into a new domU and have 
> > > > the
> > > > following trouble:
> > > >
> > > > rz3-ta:~ # lspci
> > > > 00:00.0 Multimedia audio controller: Creative Labs SB Audigy (rev 04)
> > > >
> > > > PCI: Enabling device 0000:00:00.0 (0000 -> 0001)
> > > > EMU10K1_Audigy: probe of 0000:00:00.0 failed with error -12
> > > >
> > > > I don't find a solution howto get the card working. In dom0 it works
> > > > fine.
> > > >
> > > > Have anybody a hint for me?
> > > Have you tried pci.permissive on the kernel command line? (equivalent
> > > to an option to loading the pciback module)
> > I don't know which options to try :(
> In your grub configuration do you have the pciback.hide option there?
no, I tried this with the NICs, but it doesn't work, so I do it manually ...


> Or do you give the device over to pciback manually?
yes:
echo -n 0000:0f:01.0 > /sys/bus/pci/drivers/EMU10K1_Audigy/unbind
echo -n 0000:0f:01.0 > /sys/bus/pci/drivers/pciback/new_slot
echo -n 0000:0f:01.0 > /sys/bus/pci/drivers/pciback/bind


> At the point of passing it over, either with grub or manually, you
> should have the chance to pass pciback.permissive
I don't know pciback.permissive, the soundcard is detected by alsa, but it 
stops working with the mentioned error message in domU

> > > Other than that, could it be the driver not working properly in the
> > > guest?
> > dom0 and domU are the same
> The kernel and ramdisk are the same?
I think so, it's a openSUSE Standard install.


> Is the module loading in the guest properly?
in the dom0 yes, in the domU not, the error ist
EMU10K1_Audigy: probe of 0000:00:00.0 failed with error -12

Daniel 

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