Xen users - Mar 2008 - use usb isdn modem in guest

Hi,

is it possible to use a usb isdn modem in a guest, I''m using the 
standard xen on SLES10. Which changes should I make in the  guest config 
file? The modem is a usb isdn modem from fritz.

Regards Marcus

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Hi Marcus,
> is it possible to use a usb isdn modem in a guest, I''m using the
> standard xen on SLES10. Which changes should I make in the  guest config
> file? The modem is a usb isdn modem from fritz.
I''m running an Asterisk PBX DomU using a fritz isdn pci card on Ubuntu
7.10.
Drivers load without problems, capi & voice work fine for my PBX, but I
haven''t tried to use fax or modem capabilities yet. Don''t see
why it wouldn''t
work though.

What you''d need to do is use pciback.hide on dom0 kernel line to hide
the
pci card from dom0, and add a pci = [ <pcicard id> ] section in your xen
domU config. You can use lspci to find out the pcicard id.

Greetz,
Mark.



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> What you''d need to do is use pciback.hide on dom0 kernel line to
hide the
> pci card from dom0, and add a pci = [ <pcicard id> ] section in your
xen
> domU config. You can use lspci to find out the pcicard id.
I overlooked that you are using usb, in which case you''d probably be
best off
to dedicate an entire usb card to the domU since usb front/back drivers have
not been implemented for recent Xen versions.

Greetz,
Mark.



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Mark Hurenkamp schrieb:
>> What you''d need to do is use pciback.hide on dom0 kernel line
to hide
>> the
>> pci card from dom0, and add a pci = [ <pcicard id> ] section in
your xen
>> domU config. You can use lspci to find out the pcicard id.
> I overlooked that you are using usb, in which case you''d probably
be
> best off
> to dedicate an entire usb card to the domU since usb front/back 
> drivers have
> not been implemented for recent Xen versions.
>
> Greetz,
> Mark.
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
Ok so maybe I will buy a new pci isdn modem card to use it in a xen guest.

Thank you.

Regards Marcus


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Mark Hurenkamp schrieb:
>> What you''d need to do is use pciback.hide on dom0 kernel line
to hide the
>> pci card from dom0, and add a pci = [ <pcicard id> ] section in
your xen
>> domU config. You can use lspci to find out the pcicard id.
> I overlooked that you are using usb, in which case you''d probably
be
> best off
> to dedicate an entire usb card to the domU since usb front/back drivers 
> have
> not been implemented for recent Xen versions.
Due to my own tests, usb is possible if you pciback.hide a complete controller
chip.
It might also work with only one controller, but I never had success in
functional usb communication
and system stability by doing so.

As an example, my desktop''s lspci shows

00:00.0 Host bridge: Intel Corporation 82975X Memory Controller Hub (rev c0)
00:01.0 PCI bridge: Intel Corporation 82975X PCI Express Root Port (rev c0)
00:03.0 PCI bridge: Intel Corporation 82975X/3010 PCI Express Root Port (rev c0)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition
Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1
(rev 01)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2
(rev 01)
00:1c.5 PCI bridge: Intel Corporation 82801GR/GH/GHM (ICH7 Family) PCI Express
Port 6 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI
Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GH (ICH7DH) LPC Interface Bridge (rev
01)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller
(rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GB/GR/GH (ICH7 Family) SATA IDE
Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
01:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300 LE] (rev
a1)
02:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300 LE] (rev
a1)
05:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet
Controller
06:00.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev
30)

i would pciback.hide=(00:1d.0)(00:1d.1)(00:1d.2)(00:1d.3)(00:1d.7)

additionally, i would also blacklist the usb modules (or at least usbcore) in
dom0

by e.g.
echo "blacklist usbcore" >>/etc/modprobe.d/blacklist

Cheers,


-- 
Stephan Seitz
Senior System Administrator

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