H,
I am currently having some trouble getting PCI Passthrough working. I am trying to forward a PCI Sangoma card to the VM, but I get nothing on the VM (empty lspci).
I have a Centos 5.6 dom0 setup. What I have :
$ uname -a
Linux jp-desktop 2.6.18-238.12.1.el5xen #1 SMP Tue May 31 14:02:29 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux
$ lspci | grep -i san
0a:01.0 Network controller: Sangoma Technologies Corp. A200/Remora FXO/FXS Analog AFT card
I have added the ID to the pciback.hide to grub of dom0 :
title CentOS (2.6.18-238.12.1.el5xen)
root (hd0,0)
kernel /xen.gz-2.6.18-238.12.1.el5 loglvl=all guest_loglvl=all
module /vmlinuz-2.6.18-238.12.1.el5xen ro root=/dev/host/root console=tty0 irqpoll xen-pciback.permissive pciback.hide=(0000:0a:01.0)
module /initrd-2.6.18-238.12.1.el5xen.img
It is confirmed that they are bound to pciback :
$ ll /sys/bus/pci/drivers/pciback/ | grep 0a:01.0
total 0
lrwxrwxrwx 1 root root 0 Jun 19 20:59 0000:0a:01.0 -> ../../../../devices/pci0000:00/0000:00:1e.0/0000:0a:01.0
Xen even have them assigned to the VM :
$ xm pci-list asterisk
domain bus slot func
0 a 1 0
My VM config file has the appropriate pci & extra parameter to its config file :
$ cat ubuntu/asterisk_backup.cfg | grep pci
pci=['0000:0a:01.0']
$ cat ubuntu/asterisk_backup.cfg | grep extra
extra='swiotlb=force iommu=soft'
However when I try to lspci inside the VM, I get nothing :
jp@asterisk:~$ sudo lspci
jp@asterisk:~$
On my VM :
jp@asterisk:~$ uname -a
Linux asterisk 2.6.32-32-server #62-Ubuntu SMP Wed Apr 20 22:07:43 UTC 2011 x86_64 GNU/Linux
Any help would be appreciated.
