[CentOS] Xen; xm usb-add syntax - or - where is xm usb-attach

[Pasi Kärkkäinen]

On Sat, Jan 22, 2011 at 04:20:28PM +0200, Pasi Kärkkäinen wrote:
> On Thu, Jan 20, 2011 at 10:53:15AM -0800, aurfalien at gmail.com wrote:
> > On Jan 18, 2011, at 5:40 AM, Pasi Kärkkäinen wrote:
> > 
> > > On Mon, Jan 17, 2011 at 04:46:49PM -0800, aurfalien at gmail.com wrote:
> > >> Hi all,
> > >>
> > >> I'm running Centos 5.5 with Xen 4.0.1
> > >>
> > >> Would like to use a USB key (not a block device) in my domU.
> > >>
> > >> Dom0 lsusb yields;
> > >>
> > >> Bus 002 Device 004: ID 064f:0bd8 ABC-Systems AB CDE/FG
> > >>
> > >> xm usb-add shows;
> > >>
> > >> Usage: xm usb-add <domain> <[host:bus.addr]  
> > >> [host:vendor_id:product_id]>
> > >>
> > >> Not sure what combo will work in this case.
> > >>
> > >> However, I've read some notes regarding xm usb-attach.  What subset  
> > >> of
> > >> Xen do I need for this command to show?
> > >>
> > >
> > > http://wiki.xensource.com/xenwiki/XenUSBPassthrough
> > 
> > 
> > Hi Pasi,
> > 
> > This wasn't very helpful.
> > 
> > Is there any definitive answer on wether USB passthrough works using  
> > Xen 4.0.1 and Centos 5.5?
> > 
> 
> centos5 kernel-xen does NOT have xen pvusb drivers included,
> so pvusb won't work, unless you grab/build the drivers from http://xenbits.xen.org/linux-2.6.18-xen.hg
> 
> Xen HVM guest qemu-dm USB passthru (usb 1.1) should be available,
> but that is only for Xen HVM VMs, not for PV domUs.
> 
> If using pvops 2.6.32 dom0 kernel, then pvusb drivers
> are available here: http://lists.xensource.com/archives/html/xen-devel/2011-01/msg00354.html
> 

One option is to use Xen PCI passthru to pass the USB controller
(pci device) to the domU.

-- Pasi