[Xen-users] pci passthrough with multiple devices

[Gabor Hudiczius <ghudiczius@xxxxxxxxx>]

Hi,

I'm trying to pass through 3 NICs to a domU, and i have some problems 
with it
I have hid the devices from the dom0 with the following kernel 
parameter: xen-pciback.hide=(03:01.0)(06:01.0)(06:02.0)(06:1e.0)
This does hide the devices from the dom0, and they show up as assignable 
devices
# xl pci-list-assignable-devices
0000:03:01.0
0000:06:01.0
0000:06:02.0
0000:06:1e.0

If at this moment i have a guest up and running, i can use the xl 
pci-attach command to add the devices to the guest, and that way 
everything works fine, lspci lists the network cards, and i can use them 
- they work as they supposed to.
However, when i try to add the devices via the domU config file (pci = [ 
'03:01.0', '06:01.0', '06:02.0' ]), only the first device show up in the 
guest (the order here doesn't matter, always the first device shows up). 
Reviewing the guest's dmesg, i can't see anything about the other 
devices, they don't show up in lspci, but they are no longer assignable 
according to the dom0. I have to detach and reattach them with xl to be 
able to use them in the guest.
What am i doing wrong?

Regards,
Gabor Gudiczius

p.s.: i'm using gentoo with gentoo-sources 3.3.8 for both the dom0 and 
the domU, pci backend and frontend drivers are compiled into the kernel
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users