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Etienne FLYE SAINTE MARIE

2011-Jan-16 22:02 UTC

[Xen-users] Atheros AR9287 PCI passthrough issue

Hi, 
i''m trying to use PCI passthrough feature on Xen 4.0 but it fails on my
Wireless card.

I use Xen 4.0 on a Debian 6.0 (package from repo) and try to passthrough the
following PCI device
root@omega:~# dpkg -l | grep xen 
ii libxenstore3.0 4.0.1-1 Xenstore communications library for Xen 
ii linux-image-2.6.32-5-xen-amd64 2.6.32-30 Linux 2.6.32 for 64-bit PCs, Xen
dom0 support
ii xen-hypervisor-4.0-amd64 4.0.1-1 The Xen Hypervisor on AMD64 
ii xen-qemu-dm-4.0 4.0.1-2 Xen Qemu Device Model virtual machine hardware
emulator
ii xen-tools 4.2-1 Tools to manage Xen virtual servers 
ii xen-utils-4.0 4.0.1-1 XEN administrative tools 
ii xen-utils-common 4.0.0-1 XEN administrative tools - common files 
ii xenstore-utils 4.0.1-1 Xenstore utilities for Xen 

root@omega:~# lspci 
(...) 
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI
Express Gigabit Ethernet controller (rev 06)
03:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network
Adapter (PCI-Express) (rev 01)

root@omega:~# cat /etc/default/grub 
# If you change this file, run ''update-grub'' afterwards to
update
# /boot/grub/grub.cfg. 

GRUB_DEFAULT=0 
GRUB_TIMEOUT=5 
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` 
GRUB_CMDLINE_LINUX_DEFAULT="quiet xen-pciback.permissive
xen-pciback.hide=(01:00.0)(03:00.0) pci=resource_alignment=01:00.0;03:00.0"
GRUB_CMDLINE_LINUX="" 

root@omega:~# xm pci-list-assignable-devices 
0000:03:00.0 
0000:01:00.0 

the LAN device works perfectly on the DomU configured with it but it fails on
the WLAN one:


root@omega:~# cat /etc/xen/AccessPoint.cfg 
# 
# Configuration file for the Xen instance AccessPoint, created 
# by xen-tools 4.2 on Fri Jan 14 17:37:08 2011. 
# 

# 
# Kernel + memory size 
# 
kernel = ''/boot/vmlinuz-2.6.32-5-xen-amd64'' 
ramdisk = ''/boot/initrd.img-2.6.32-5-xen-amd64'' 

vcpus = ''1'' 
memory = ''256'' 

# 
# Disk device(s). 
# 
root = ''/dev/xvda2 ro'' 
disk = [ 
''phy:/dev/lvg-xen/AccessPoint-disk,xvda2,w'', 
''phy:/dev/lvg-xen/AccessPoint-swap,xvda1,w'', 
] 


# 
# Physical volumes 
# 


# 
# Hostname 
# 
name = ''AccessPoint'' 

# 
# Networking 
# 
vif = [ ''ip=192.168.42.5,mac=00:16:3E:1E:88:3E'' ] 

pci=[''03:00.0''] 
# 
# Behaviour 
# 
on_poweroff = ''destroy'' 
on_reboot = ''restart'' 
on_crash = ''restart'' 


On the DomU: 

root@AccessPoint:~# lspci 
00:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network
Adapter (PCI-Express) (rev 01)

root@AccessPoint:~# ifconfig wlan0 up 
[ 51.254777] ADDRCONF(NETDEV_UP): wlan0: link is not ready 

root@AccessPoint:~# iwconfig 
lo no wireless extensions. 

eth0 no wireless extensions. 

wlan0 IEEE 802.11bgn ESSID:off/any 
Mode:Managed Access Point: Not-Associated Tx-Power=16 dBm 
Retry long limit:7 RTS thr:off Fragment thr:off 
Encryption key:off 
Power Management:on 

root@AccessPoint:~# iwlist scan 
lo Interface doesn''t support scanning. 

eth0 Interface doesn''t support scanning. 

[ 86.863546] ath: ffff88000dd95be0 
[ 86.863553] ath: ffff88000dd95c00 
[ 86.874968] ath: ffff88000dd95bc0 
[ 86.944314] ath: ffff88000dd95bc0 
[ 86.944364] ath: ffff88000dd95bf0 
[ 86.955778] ath: ffff88000dd95be0 
[ 86.955783] ath: ffff88000dd95c00 
[ 86.967241] ath: ffff88000dd95bc0 
[ 87.036195] ath: ffff88000dd95bc0 
[ 87.036243] ath: ffff88000dd95bf0 
[ 87.108346] ath: ffff88000dd95bc0 
[ 87.108395] ath: ffff88000dd95bf0 
[ 87.119864] ath: ffff88000dd95be0 
[ 87.119870] ath: ffff88000dd95c00 
[ 87.131275] ath: ffff88000dd95bc0 
[ 87.200197] ath: ffff88000dd95bc0 
[ 87.200245] ath: ffff88000dd95bf0 
[ 87.272314] ath: ffff88000dd95bc0 
[ 87.272363] ath: ffff88000dd95bf0 
[ 87.283832] ath: ffff88000dd95be0 
[ 87.283837] ath: ffff88000dd95c00 
[ 87.295239] ath: ffff88000dd95bc0 
[ 87.364314] ath: ffff88000dd95bc0 
[ 87.364363] ath: ffff88000dd95bf0 
[ 87.375829] ath: ffff88000dd95be0 
[ 87.375835] ath: ffff88000dd95c00 
[ 87.387240] ath: ffff88000dd95bc0 
[ 87.456364] ath: ffff88000dd95bc0 
[ 87.456414] ath: ffff88000dd95bf0 
[ 87.467821] ath: ffff88000dd95be0 
[ 87.467826] ath: ffff88000dd95c00 
[ 87.479286] ath: ffff88000dd95bc0 
[ 87.548195] ath: ffff88000dd95bc0 
[ 87.548243] ath: ffff88000dd95bf0 
[ 87.620314] ath: ffff88000dd95bc0 
[ 87.620363] ath: ffff88000dd95bf0 
[ 87.631776] ath: ffff88000dd95be0 
[ 87.631781] ath: ffff88000dd95c00 
[ 87.643240] ath: ffff88000dd95bc0 
[ 87.712209] ath: ffff88000dd95bc0 
[ 87.712257] ath: ffff88000dd95bf0 
[ 87.784329] ath: ffff88000dd95bc0 
[ 87.784378] ath: ffff88000dd95bf0 
[ 87.795844] ath: ffff88000dd95be0 
[ 87.795849] ath: ffff88000dd95c00 
[ 87.807263] ath: ffff88000dd95bc0 
[ 87.947540] ath: ffff88000dd95be0 
[ 87.947546] ath: ffff88000dd95c00 
[ 87.959001] ath: ffff88000dd95bc0 
[ 88.099529] ath: ffff88000dd95be0 
[ 88.099535] ath: ffff88000dd95c00 
[ 88.110942] ath: ffff88000dd95bc0 
[ 88.251550] ath: ffff88000dd95c40 
[ 88.251555] ath: ffff88000dd95c60 
[ 88.263024] ath: ffff88000dd95c20wlan0 No scan results 


WLAN Card can''t see any ssid whereas this command works on Dom0 if i
unhide the device.

Do you any idea why it fails on it? If you have any idea on configuration side,
i''m listenning ;)

Thanks a lot 

Etienne 



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Etienne FLYE SAINTE MARIE

2011-Jan-25 16:14 UTC

head link

Re: [Xen-users] Atheros AR9287 PCI passthrough issue

I just tried to compile and use last compat-wireless-2.6 build from
wireless.kernel.org and i still have the issue.

Is there a way to identify if it''s a xen issue or an ath9k module
issue?

Thanks for your help 

Etienne 


----- Mail original -----
De: "Etienne FLYE SAINTE MARIE" <etn@xsen.fr> 
À: xen-users@lists.xensource.com 
Envoyé: Dimanche 16 Janvier 2011 23:02:11 
Objet: [Xen-users] Atheros AR9287 PCI passthrough issue 


Hi, 
i''m trying to use PCI passthrough feature on Xen 4.0 but it fails on my
Wireless card.

I use Xen 4.0 on a Debian 6.0 (package from repo) and try to passthrough the
following PCI device
root@omega:~# dpkg -l | grep xen 
ii libxenstore3.0 4.0.1-1 Xenstore communications library for Xen 
ii linux-image-2.6.32-5-xen-amd64 2.6.32-30 Linux 2.6.32 for 64-bit PCs, Xen
dom0 support
ii xen-hypervisor-4.0-amd64 4.0.1-1 The Xen Hypervisor on AMD64 
ii xen-qemu-dm-4.0 4.0.1-2 Xen Qemu Device Model virtual machine hardware
emulator
ii xen-tools 4.2-1 Tools to manage Xen virtual servers 
ii xen-utils-4.0 4.0.1-1 XEN administrative tools 
ii xen-utils-common 4.0.0-1 XEN administrative tools - common files 
ii xenstore-utils 4.0.1-1 Xenstore utilities for Xen 

root@omega:~# lspci 
(...) 
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI
Express Gigabit Ethernet controller (rev 06)
03:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network
Adapter (PCI-Express) (rev 01)

root@omega:~# cat /etc/default/grub 
# If you change this file, run ''update-grub'' afterwards to
update
# /boot/grub/grub.cfg. 

GRUB_DEFAULT=0 
GRUB_TIMEOUT=5 
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` 
GRUB_CMDLINE_LINUX_DEFAULT="quiet xen-pciback.permissive
xen-pciback.hide=(01:00.0)(03:00.0) pci=resource_alignment=01:00.0;03:00.0"
GRUB_CMDLINE_LINUX="" 

root@omega:~# xm pci-list-assignable-devices 
0000:03:00.0 
0000:01:00.0 

the LAN device works perfectly on the DomU configured with it but it fails on
the WLAN one:


root@omega:~# cat /etc/xen/AccessPoint.cfg 
# 
# Configuration file for the Xen instance AccessPoint, created 
# by xen-tools 4.2 on Fri Jan 14 17:37:08 2011. 
# 

# 
# Kernel + memory size 
# 
kernel = ''/boot/vmlinuz-2.6.32-5-xen-amd64'' 
ramdisk = ''/boot/initrd.img-2.6.32-5-xen-amd64'' 

vcpus = ''1'' 
memory = ''256'' 

# 
# Disk device(s). 
# 
root = ''/dev/xvda2 ro'' 
disk = [ 
''phy:/dev/lvg-xen/AccessPoint-disk,xvda2,w'', 
''phy:/dev/lvg-xen/AccessPoint-swap,xvda1,w'', 
] 


# 
# Physical volumes 
# 


# 
# Hostname 
# 
name = ''AccessPoint'' 

# 
# Networking 
# 
vif = [ ''ip=192.168.42.5,mac=00:16:3E:1E:88:3E'' ] 

pci=[''03:00.0''] 
# 
# Behaviour 
# 
on_poweroff = ''destroy'' 
on_reboot = ''restart'' 
on_crash = ''restart'' 


On the DomU: 

root@AccessPoint:~# lspci 
00:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network
Adapter (PCI-Express) (rev 01)

root@AccessPoint:~# ifconfig wlan0 up 
[ 51.254777] ADDRCONF(NETDEV_UP): wlan0: link is not ready 

root@AccessPoint:~# iwconfig 
lo no wireless extensions. 

eth0 no wireless extensions. 

wlan0 IEEE 802.11bgn ESSID:off/any 
Mode:Managed Access Point: Not-Associated Tx-Power=16 dBm 
Retry long limit:7 RTS thr:off Fragment thr:off 
Encryption key:off 
Power Management:on 

root@AccessPoint:~# iwlist scan 
lo Interface doesn''t support scanning. 

eth0 Interface doesn''t support scanning. 

[ 86.863546] ath: ffff88000dd95be0 
[ 86.863553] ath: ffff88000dd95c00 
[ 86.874968] ath: ffff88000dd95bc0 
[ 86.944314] ath: ffff88000dd95bc0 
[ 86.944364] ath: ffff88000dd95bf0 
[ 86.955778] ath: ffff88000dd95be0 
[ 86.955783] ath: ffff88000dd95c00 
[ 86.967241] ath: ffff88000dd95bc0 
[ 87.036195] ath: ffff88000dd95bc0 
[ 87.036243] ath: ffff88000dd95bf0 
[ 87.108346] ath: ffff88000dd95bc0 
[ 87.108395] ath: ffff88000dd95bf0 
[ 87.119864] ath: ffff88000dd95be0 
[ 87.119870] ath: ffff88000dd95c00 
[ 87.131275] ath: ffff88000dd95bc0 
[ 87.200197] ath: ffff88000dd95bc0 
[ 87.200245] ath: ffff88000dd95bf0 
[ 87.272314] ath: ffff88000dd95bc0 
[ 87.272363] ath: ffff88000dd95bf0 
[ 87.283832] ath: ffff88000dd95be0 
[ 87.283837] ath: ffff88000dd95c00 
[ 87.295239] ath: ffff88000dd95bc0 
[ 87.364314] ath: ffff88000dd95bc0 
[ 87.364363] ath: ffff88000dd95bf0 
[ 87.375829] ath: ffff88000dd95be0 
[ 87.375835] ath: ffff88000dd95c00 
[ 87.387240] ath: ffff88000dd95bc0 
[ 87.456364] ath: ffff88000dd95bc0 
[ 87.456414] ath: ffff88000dd95bf0 
[ 87.467821] ath: ffff88000dd95be0 
[ 87.467826] ath: ffff88000dd95c00 
[ 87.479286] ath: ffff88000dd95bc0 
[ 87.548195] ath: ffff88000dd95bc0 
[ 87.548243] ath: ffff88000dd95bf0 
[ 87.620314] ath: ffff88000dd95bc0 
[ 87.620363] ath: ffff88000dd95bf0 
[ 87.631776] ath: ffff88000dd95be0 
[ 87.631781] ath: ffff88000dd95c00 
[ 87.643240] ath: ffff88000dd95bc0 
[ 87.712209] ath: ffff88000dd95bc0 
[ 87.712257] ath: ffff88000dd95bf0 
[ 87.784329] ath: ffff88000dd95bc0 
[ 87.784378] ath: ffff88000dd95bf0 
[ 87.795844] ath: ffff88000dd95be0 
[ 87.795849] ath: ffff88000dd95c00 
[ 87.807263] ath: ffff88000dd95bc0 
[ 87.947540] ath: ffff88000dd95be0 
[ 87.947546] ath: ffff88000dd95c00 
[ 87.959001] ath: ffff88000dd95bc0 
[ 88.099529] ath: ffff88000dd95be0 
[ 88.099535] ath: ffff88000dd95c00 
[ 88.110942] ath: ffff88000dd95bc0 
[ 88.251550] ath: ffff88000dd95c40 
[ 88.251555] ath: ffff88000dd95c60 
[ 88.263024] ath: ffff88000dd95c20wlan0 No scan results 


WLAN Card can''t see any ssid whereas this command works on Dom0 if i
unhide the device.

Do you any idea why it fails on it? If you have any idea on configuration side,
i''m listenning ;)

Thanks a lot 

Etienne 


_______________________________________________ 
Xen-users mailing list 
Xen-users@lists.xensource.com 
http://lists.xensource.com/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

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