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Re: [Xen-devel] USB passthrough with Xen on ARM

On 12/09/17 10:13, Roger Quadros wrote:
> Hi,
> I'm running Xen v4.9 on DRA7 (OMAP5/ArmV7) with Linux kernel v3.14 (yikes!!) 
> on dom0 and domU.
> I'm struggling to get USB passthrough working using pvUSB.
> My domU config file contains
>    usb = 1
>    usbctrl = ['type=qusb,version=2,ports=4', 'type=qusb,version=1, ports=4', ]
> I can see the vusb-0 and vusb-1 platform devices in /sys/devices
> And the following message on domU kernel log
> [    1.849572] xenbus_probe_frontend: Device with no driver: device/vusb/0
> [    1.849627] xenbus_probe_frontend: Device with no driver: device/vusb/1
> This means that there is no device driver for the vusb host controllers.
> What is the way forward? Do I need to apply some patches to the domU kernel to
> add support for the USB frontend HCD drivers? 

This is one mandatory step, yes. You'll need:


The question is whether this will be enough for you to make it work: the
pvusb backend is qemu based. I'm not sure this will just work on ARM.


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