Re: [Xen-users] USB at domU PV domain & PVUSB

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Thu, Jul 28, 2011 at 10:12:07AM +0200, Nacho Alegre Alvarez wrote:
> Hi Todd,
> 
> i know this page
> 
> http://wiki.xensource.com/xenwiki/XenUSBPassthrough
> 
> but i think this PVUSB is beta version or not easy to do this work, you
> have experience with this matter and can help me?¿
> 

Debian Squeeze kernel does not include Xen PVUSB drivers,
so you can't use PVUSB with it.. 

(unless you build the drivers yourself/manully).

-- Pasi


> Un Saludo/Best Regards.
> 
> Nacho Alegre.
> 
> movil.: +34 649 66 92 92
> e-mail.: nacho@xxxxxxxxx
> web.: http://www.alegre.es
> web.: http://distribuciones.alegre.es
> 
> > On Wed, Jul 27, 2011 at 8:07 PM, Nacho Alegre Alvarez <nacho@xxxxxxxxx>
> > wrote:
> >> Good Evenight
> >>
> >> I try to do working usb's into domU xen guest, SO of xen server is
> >> Debian
> >> Squenze 6.0, into HVM guest usb works and can make use but with
> >> ParaVirtual guest PV can find this devices with lsusb or into /dev/
> >> directory.
> >>
> >> Kernel load into xend and guest is the same and is the kernel provided
> >> by
> >> this package:
> >>
> >> ii  linux-image-2.6.32-5-xen-amd64          2.6.32-35
> >> Linux 2.6.32 for 64-bit PCs, Xen dom0 support
> >> ii  linux-image-xen-amd64                   2.6.32+29
> >> Linux for 64-bit PCs (meta-package), Xen dom0 support
> >>
> >> this is the version of kernel:
> >>
> >> Linux version 2.6.32-5-xen-amd64 (Debian 2.6.32-35) (dannf@xxxxxxxxxx)
> >> (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Tue Jun 14 12:46:30 UTC
> >> 2011
> >>
> >>
> >> Configuration of PV  guest domain is:
> >>
> >> bootloader = '/usr/lib/xen-default/bin/pygrub'
> >> vcpus       = '2'
> >> memory      = '512'
> >> root        = '/dev/xvda2 ro'
> >> disk        = [
> >>                
> >>  'file:/disco/xen/maquinas/domains/debian-prueba/disk.img,xvda2,w',
> >>                
> >>  'file:/disco/xen/maquinas/domains/debian-prueba/swap.img,xvda1,w',
> >>              ]
> >> name        = 'debian-prueba'
> >> vif         = [ 'ip=192.168.0.200,mac=00:16:3E:D2:D7:46' ]
> >> on_poweroff = 'destroy'
> >> on_reboot   = 'restart'
> >> on_crash    = 'restart'
> >> usb=1
> >> vusb = ['usbver=2, numports=10,port_1=1-3,port_2=1-2'
> >>
> >> oput get in  XEN whi xm about usb is the next info:
> >>
> >> root@xen-servidor:/etc/grub.d# xm usb-list debian-prueba
> >> Idx BE  state usb-ver  BE-path
> >> 0   0   1     USB2.0  /local/domain/0/backend/vusb/17/0
> >> port 1: 1-3
> >> port 2: 1-2 [ID 0402:5661 ALi Corp. Audio Player]
> >> port 3:
> >> port 4:
> >> port 5:
> >> port 6:
> >> port 7:
> >> port 8:
> >> port 9:
> >> port 10:
> >>
> >> available devices are this:
> >>
> >> root@xen-servidor:/etc/grub.d# xm usb-list-assignable-devices
> >> 1-2          : ID 0402:5661 ALi Corp. Audio Player
> >> root@xen-servidor:/etc/grub.d#
> >>
> >>
> >> kernel of this PV domain "debian-prueba" is next:
> >>
> >> root@debian-prueba:~# cat /proc/version
> >> Linux version 2.6.32-5-xen-amd64 (Debian 2.6.32-35) (dannf@xxxxxxxxxx)
> >> (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Tue Jun 14 12:46:30 UTC
> >> 2011
> >> root@debian-prueba:~#
> >>
> >> but into this guest domain "debian-prueba" when exec lsusb command get
> >> nothing, see below:
> >>
> >> root@debian-prueba:~# lsusb
> >> root@debian-prueba:~#
> >>
> >> at dmesg  of this PV domain, can watch only this info about usb and xen:
> >>
> >> [    0.316730] XENBUS: Device with no driver: device/vbd/51714
> >> [    0.316740] XENBUS: Device with no driver: device/vbd/51713
> >> [    0.316749] XENBUS: Device with no driver: device/vif/0
> >> [    0.316757] XENBUS: Device with no driver: device/vusb/0
> >> [    0.316766] XENBUS: Device with no driver: device/console/0
> >> [    0.316796]
> >> /build/buildd-linux-2.6_2.6.32-35-amd64-aZSlKL/linux-2.6-2.6.32/debian/build/source_amd64_xen/drivers/rtc/hctosys.c:
> >> unable to open rtc device (rtc0)
> >> [    0.316837] Initalizing network drop monitor service
> >>
> >> Anyone have the same situation with PV guest domain working with usb
> >> throw
> >> PVUSB techonology, can anyone guide me to make run usb at this domain,
> >> need connect four devices 2.0  (printer, disc, scanner and modem with
> >> serial port throw usb-serial converter)
> >>
> >> If any one can help me, because i read something about PVUSB but can't
> >> make work usb at PV domains  or not know steps to do this devices work.
> >>
> >
> > Does this help:
> > http://wiki.xensource.com/xenwiki/XenUSBPassthrough
> >
> > Thanks,
> > Todd
> >
> > --
> > Todd Deshane
> > http://www.linkedin.com/in/deshantm
> > http://www.xen.org/products/cloudxen.html
> > http://runningxen.com/
> >
> 
> 
> 
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