[Xen-users] RE: Yet Another PCI passthrough question

["Beasley, Julien" <Julien.Beasley@xxxxxxx>]

I wanted to say I also checked that virtualization is runnig:

# xm dmesg
 __  __            _  _    ___   ____      ____ ____      ___   ____    _ 
 \ \/ /___ _ __   | || |  / _ \ |___ \    | ___|___ \    / _ \ |___ \  / |
  \  // _ \ '_ \  | || |_| | | |  __) |   |___ \ __) |__| | | |  __) | | |
  /  \  __/ | | | |__   _| |_| | / __/     ___) / __/|__| |_| | / __/ _| |
 /_/\_\___|_| |_|    |_|(_)___(_)_____|___|____/_____|   \___(_)_____(_)_|
                                     |_____|                              
(XEN) Xen version 4.0.2_52-0.2.1 (abuild@) (gcc version 4.5.1 20101208 
[gcc-4_5-branch revision 167585] (SUSE Linux) ) Tue Jul 26 20:31:58 UTC 2011 ...
(XEN) AMD-Vi: IOMMU 0 Enabled.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed


And also checked that pci pass through was enabled in the xen config

# less /boot/config-2.6.37.6-0.7-xen
CONFIG_XEN_PCIDEV_FRONTEND=y
CONFIG_XEN_PCIDEV_BACKEND=y
CONFIG_XEN_PCIDEV_BACKEND_PASS=y


At this point I'm really quite stumped. I'd appreciate any thoughts on what I'm 
doing wrong.

Julien

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Beasley, Julien
Sent: Wednesday, August 31, 2011 10:30 AM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] RE: Yet Another PCI passthrough question

Oh, and I guess I should give my system info. I'm running with Suse 11.4, which 
has Xen 4.0.2_52-0.2.1 that comes built natively

-----Original Message-----
From: Beasley, Julien 
Sent: Wednesday, August 31, 2011 10:25 AM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Yet Another PCI passthrough question

Hello all,

I'm trying to pass my PCI device through to an HVM. I'm following the steps on 
the xen pci passthrough wiki. 

First I check my pci devices
#lspci -

03:00.0 VGA compatible controller: ATI Technologies Inc Device 671d
03:00.1 Audio device: ATI Technologies Inc Device aa80
04:00.0 Display controller: ATI Technologies Inc Device 671d
04:00.1 Audio device: ATI Technologies Inc Device aa80


Now I edit my grub entry. I'm on SuSE so it's menu.list, not grub.conf #less 
/boot/grub/menu.lst

###Don't change this comment - YaST2 identifier: Original name: xen### title 
Xen -- openSUSE 11.4 - 2.6.37.6-0.7
    root (hd0,1)
    kernel /boot/xen.gz vga=mode-0x375 
    module /boot/vmlinuz-2.6.37.6-0.7-xen 
root=/dev/disk/by-id/ata-ST3250410AS_6RYJWXM7-part2 
resume=/dev/disk/by-id/ata-ST3250410AS_6RYJWXM7-part1 splash=silent quiet 
showopts vga=0x375 xen-pciback.hide=(03:00.0)(04:00.0)
    module /boot/initrd-2.6.37.6-0.7-xen

Now reboot, and look at assignable devices # xm pci-list-assignable-devices


Nothing shows up here. I've also tried adding the xen-pciback.hide line to the 
other module line in grub, that's not doing anything either.

What am I missing? I searched the archives of this list, found this 
(http://lists.xensource.com/archives/html/xen-users/2011-05/msg00517.html) in 
May, same problem. Followed the instructions. Am I missing something dumb?

Julien



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