Re: [Xen-users] xen/next & pvm pci passthrough?

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Mon, Mar 01, 2010 at 11:34:43PM +0100, Mark Hurenkamp wrote:
> Hi,
> 
> 
> Does anyone know if pvm pci passthrough is supposed to work on xen/next 
> branch? I'm trying to get a device passed to the pvm, but things don't work 
> the same as on xen/master (where i used pciback).
> 

iirc xen/next is still missing some pci passthrough stuff.
Btw the module is called xen-pciback nowadays.

-- Pasi

> Here's what i do on xen/master dom0:
> echo -n "0000:05:00.0" > /sys/bus/pci/drivers/cx23885/unbind
> echo -n "0000:05:00.0" > /sys/bus/pci/drivers/pciback/new_slot
> echo -n "0000:05:00.0" > /sys/bus/pci/drivers/pciback/bind
> 
> Then when i boot the pvm using also xen/master kernel, it shows up on lspci, 
> and i can load the driver.
> 
> But when i run xen/next dom0, pciback doesn't seem to exist, so i use 
> pci-stub 
> to grab the device:
> 
> lspci -n
> 05:00.0 0400: 14f1:8852 (rev 02)
> 
> echo -n "14f1 8852" > /sys/bus/pci/drivers/pci-stub/new_id
> echo -n "0000:05:00.0" > /sys/bus/pci/drivers/cx23885/unbind
> echo -n "0000:05:00.0" > /sys/bus/pci/drivers/pci-stub/bind
> 
> Now i boot the same pvm using xen/next kernel, however nothing shows up on 
> lspci after the pvm is up.
> 
> Is this not working yet? Or am i just doing something wrong?
> 
> My config file is the same for both, and contains the following:
> 
> bootloader = "/usr/bin/pygrub"
> maxmem = 1024
> memory = 1024
> name = "pvm"
> vif = [ 'mac=aa:20:00:00:02:17, bridge=br0' ]
> disk = [
>     'phy:mirror/pvm_root,hda1,w',
>     'phy:mirror/pvm_swap,hda2,w',
>     ]
> pci = [
>     '0000:05:00.0'
>     ]
> vcpus=2
> 
> 
> 
> Regards,
> Mark.
> 
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