Hi!
As dom0 I'm running Ubuntu Hardy withe xen 3.3 from backports.
Reason to using xen 3.3 is that I could get Intrepid stock kernel to
work as domu with xen 3.2.
Now the problem I have is that I can't passthrough PCI-devices to my domu.
If I run lspci in the domu nothing is returned.
I've tried to use the kernel from Hardy (2.6.24-21-xen) and stock
kernel from Intrepid (2.6.27-7-server). Without any difference.
If I use Xen 3.2 and kernel (2.6.24-21-xen) pci passthrough work.
What could be wrong with PCI passthrough in xen 3.3?
What could I do to solve the problem?
Some additional information that may help;
Dom0 is booted with this text in grub.conf
title Xen 3.3 / Ubuntu 8.04.1, kernel 2.6.24-21-xen
root (hd0,0)
kernel /xen-3.3.gz dom0_mem=256M
module /vmlinuz-2.6.24-21-xen
root=/dev/mapper/vgZeus-lvZeusRoot ro console=tty0 swiotlb=128
pciback.permissive pciback.hide=(04:03.0)(04:04.0)
module /initrd.img-2.6.24-21-xen
quiet
ls -l /sys/bus/pci/drivers/pciback/
lrwxrwxrwx 1 root root 0 2008-11-16 20:53 0000:04:03.0 ->
../../../../devices/pci0000:00/0000:00:1e.0/0000:04:03.0
lrwxrwxrwx 1 root root 0 2008-11-16 20:53 0000:04:04.0 ->
../../../../devices/pci0000:00/0000:00:1e.0/0000:04:04.0
--w------- 1 root root 4096 2008-11-16 20:53 bind
lrwxrwxrwx 1 root root 0 2008-11-16 20:53 module ->
../../../../module/pciback
--w------- 1 root root 4096 2008-11-16 20:53 new_id
--w------- 1 root root 4096 2008-11-16 20:53 new_slot
-rw------- 1 root root 4096 2008-11-16 20:53 permissive
-rw------- 1 root root 4096 2008-11-16 20:53 quirks
--w------- 1 root root 4096 2008-11-16 20:53 remove_slot
-r-------- 1 root root 4096 2008-11-16 20:53 slots
--w------- 1 root root 4096 2008-11-16 20:53 uevent
--w------- 1 root root 4096 2008-11-16 20:53 unbind
domu config (/etc/xen/test.cfg)
#kernel = '/boot/vmlinuz-2.6.24-21-xen'
#ramdisk = '/boot/initrd.img-2.6.24-21-xen'
kernel = '/boot/xen/vmlinuz-2.6.27-7-server'
ramdisk = '/boot/xen/initrd.img-2.6.27-7-server'
memory = '256'
root = '/dev/xvda2 ro'
disk = [
'phy:/dev/vgZeus/test-swap,xvda1,w',
'phy:/dev/vgZeus/test-disk,xvda2,w',
]
name = 'test'
dhcp = 'dhcp'
vif = [ 'mac=00:16:3E:FF:00:8D' ]
pci = [ '04:04.0' ]
extra = '2 console=hvc0'
Parts from dmesg on domU that could be interesting;
[ 0.000000] Allocating PCI resources starting at 20000000 (gap:
10000000:f0000000)
[ 0.038071] PCI: Fatal: No config space access function found
[ 0.040252] PCI: System does not support PCI
[ 0.040258] PCI: System does not support PCI
[ 0.271698] XENBUS: Device with no driver: device/pci/0
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