RE: [Xen-users] Problems exporting a PCI device to a domU...

["[STD]Ein" <ein@xxxxxxxxxxxxxx>]

First make sure that the device is shown as claimed by pciback on dom0.

ls /sys/bus/pci/drivers/pciback/ | grep 00:06.0

If it isn't, then ensure that your dom0 kernel has pciback compiled in (not
as a module).  If it's a module, then you must perform late binding, or
change kernels.  The Etch supplied 2.6.18-5-xen kernels have this compiled
in for example.

Also, I'm assuming your system has one pci bus and all devices start at
0000: but it couldn't hurt to write everything in long form.

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Gaubatz Patrick
Sent: November 4, 2007 5:24 AM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Problems exporting a PCI device to a domU...

Hi!

I am trying to export a PCI device (an AVM Fritzcard PCI ISDN card...)  
to a domU but when
starting my domU I am getting this error:
"pciback pci-4-0: 22 Couldn't locate PCI device (0000:00:06.0)!  
perhaps already in-use?"
My system is running both debian etch in dom0 and domU...
Below you can find (hopefully) all important  information...

Sincerely,
Gaubatz Patrick

####################################


xenmeister:~# uname -a
Linux xenmeister 2.6.18-5-xen-vserver-686 #1 SMP Wed Oct 3 04:36:02  
UTC 2007 i686
GNU/Linux


xenmeister:~# lspci | grep AVM
00:06.0 Network controller: AVM Audiovisuelles MKTG & Computer System  
GmbH A1 ISDN
[Fritz] (rev 02)


xenmeister:~# cat /boot/grub/menu.lst | grep 00:06.0
# xenkopt=console=tty0 pciback.hide=(00:06.0)
module                /boot/vmlinuz-2.6.18-5-xen-vserver-686  
root=/dev/md0 ro console=tty0
pciback.hide=(00:06.0)


xenmeister:~# lsmod
Module                  Size  Used by
xt_tcpudp               3904  4
xt_physdev              3792  8
iptable_filter          3872  1
ip_tables              13892  1 iptable_filter
x_tables               14084  3 xt_tcpudp,xt_physdev,ip_tables
bridge                 50300  1 xt_physdev
netloop                 7360  0
raid456               116496  1
xor                    15144  1 raid456
loop                   15944  0
ide_cd                 36832  0
cdrom                  33344  1 ide_cd
ide_disk               15712  6
generic                 5636  0 [permanent]
floppy                 51716  0
serverworks             9096  0 [permanent]
rtc                    13332  0
serial_core            20288  0
i2c_piix4               8908  0
i2c_core               20448  1 i2c_piix4
ide_core              112392  4 ide_cd,ide_disk,generic,serverworks
ehci_hcd               29288  0
uhci_hcd               22188  0
usbcore               114372  3 ehci_hcd,uhci_hcd
thermal                14376  0
processor              29608  1 thermal
fan                     5572  0
e1000                 110432  0
ext3                  123336  1
jbd                    53224  1 ext3
mbcache                 9124  1 ext3
sd_mod                 19808  8
dm_snapshot            16320  0
dm_mirror              20048  0
dm_mod                 50968  27 dm_snapshot,dm_mirror
raid1                  21984  3
md_mod                 71348  6 raid456,raid1
mptspi                 16936  6
scsi_transport_spi     23104  1 mptspi
mptscsih               22848  1 mptspi
scsi_mod              125160  4 sd_mod,mptspi,scsi_transport_spi,mptscsih
mptbase                47264  2 mptspi,mptscsih


xenmeister:~# cat /etc/xen/test.cfg
kernel  = '/boot/vmlinuz-2.6.18-5-xen-vserver-686'
ramdisk = '/boot/initrd.img-2.6.18-5-xen-vserver-686-domU'
memory  = '100'
root    = '/dev/sda1 ro'
disk    = [ 'phy:data/test-disk,sda1,w', 'phy:data/test-swap,sda2,w' ]
name    = 'test'
vif  = [ 'ip=10.0.0.19, mac=00:16:3E:00:00:04, vifname=eth4' ]
pci = [ '00:06.0' ]
on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'



xenmeister:~# dmesg | grep pciback
Kernel command line: root=/dev/md0 ro console=tty0 pciback.hide=(00:06.0)
pciback 0000:00:06.0: seizing device
pciback: vpci: 0000:00:06.0: assign to virtual slot 0
pciback pci-4-0: 22 Couldn't locate PCI device (0000:00:06.0)! perhaps  
already in-use?

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