Re: [Xen-users] xen hvm usb problem

[Erik Lind <zod@xxxxxxxxxxxxx>]

That may or may not be correct, I do not know. However I do know that I 
have successfully done usb passthrough from 3.1-rc3 kernel (Dom0) to a 
windows 7 DomU, without any patches which I guess mean that the legacy 
passthrough option work?
(It is possible using the xl tool chain as well either in the config 
file or in the console (not not from the normal cli))
/Erik


On 10/09/2011 02:14 PM, Dima Tisnek wrote:
> my understanding is that after pvops switch (landing xen in linux
> kernel, perhaps coinsides with xen3->xen4?) usbback module is not
> implemented, at least in vanilla kernel 3.0.4 or Konrad's git 2.6.xx.
>
> xl tools don't support usb yet either. The easiest to try is to play
> with xm tools:
>
> manually unbind usb device from whatever module/driver in dom0 (opt)
> xm usb list assignable devices (if not shown, try above)
> try xm usb-attach
> if you get an error, it basically means your dom0 kernel does not have usbback.
>
> you can also check /proc/config.gz
>
> d.
>
> On 9 October 2011 15:05, Erik Lind<zod@xxxxxxxxxxxxx>  wrote:
> > Hi
> >
> > Well normal usb 1.1 passthrough should be supported but it depends on device
> >   according to:
> > http://wiki.xen.org/xenwiki/XenUSBPassthrough
> >
> > For pvusb support I guess it is correct that the dom0 kernel has to support
> > it and the DomU OS of course.
> >
> > Perhaps you should try the pvusb passthrough or test with some other usb
> > device to see if it is device dependent or not?
> >
> > /Erik
> >
> > On 10/09/2011 12:16 PM, Dima Tisnek wrote:
> > > it could be that your xen/qemu/dom0 version doesn't support usbback
> > > (hiding usb from dom0), that is the case e.g. with xen 4.1.1 and linux
> > > 3.0 and dom0
> > >
> > >
> > > On 9 October 2011 03:41, Gmail<todaygood@xxxxxxxxx>    wrote:
> > > > xen hvm
> > > >
> > > > guest os:  windows xp  or SLES Linux 11
> > > >
> > > > in dom0 , lsusb can find usb device .
> > > > by using  add usbdevice="host:vendorID:productID" in windowsxp.cfg or
> > > > sles11.cfg
> > > >
> > > > 1)in windows xp ,I can't find any usb device
> > > > 2)in SLES Linux11 ,can't find any usb device  either.
> > > >
> > > > What can I do for finding usb device?  Please help me .
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
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