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Re: [Xen-devel] USB Passthrough support X86_64


I need USB Passthrough for my work(pv). For that I am trying to write USB front and back drivers. Besides these what else is needed for the Passthrough to work?
Should I have to also do the part to add device model(xl) or is it already done.

I got some patches for adding the front-end driver. Have anyone worked on backend for usb?

If anyone could point me to anything that might help, that would be wonderful. I have minimal experience in Linux driver.


On 03-Aug-2017 2:48 PM, "Ajmal M Ali" <ajeeshb4u@xxxxxxxxx> wrote:

On 21-Jul-2017 2:17 PM, "Pasi Kärkkäinen" <pasik@xxxxxx> wrote:
On Fri, Jul 21, 2017 at 10:39:36AM +0200, Juergen Gross wrote:
> >
> > USB passthrough requires the device model. There is currently no
> > provision in toolstack to spawn a device model on demand.
> >
> > The easiest workaround is to add one device (vfb?) that would require
> > spawning a device model when creating the domain.
> >
> >>
> >> i am trying to hotplug my usb. I haveint made any changes in the config
> >> file, as i assumed it wont be needed for hotplug, also i didnt have to do
> >> it for pci passthrough. Should i?
> >>
> >> Also, i cannot find any usbback and frond in my PC.
> Uuh, yes. I've sent some patches to LKML for pvUSB frontend support
> about 2 years ago:
> https://lists.xen.org/archives/html/xen-devel/2015-06/msg03436.html
> I didn't find any time since then to address all comments. Maybe I
> should finish that task...

That'd be awesome! :)

> The patches should still work fine, AFAIK.

Good to know.

-- Pasi

> Juergen

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