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Re: [Xen-users] [Xen-Users] USB passthrough and WiFi access


  • To: Vikram K <vikram.k@xxxxxxxxxxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxxx
  • From: Juergen Gross <jgross@xxxxxxxx>
  • Date: Fri, 7 Sep 2018 10:52:24 +0200
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  • Delivery-date: Fri, 07 Sep 2018 08:53:43 +0000
  • List-id: Xen user discussion <xen-users.lists.xenproject.org>
  • Openpgp: preference=signencrypt

On 07/09/18 08:11, Vikram K wrote:
> Hi,
> 
> 1. We are using Hikey960 board.
> 2. Xen version is 4.8
> 3. Linux kernel version is 4.14
> 
> We want to add/pass-through USB devices to DomU. From the below link I
> understood that there is no USB back and front driver support in latest
> kernel. But PVUSB support is added to *xl* tools since Xen 4.7. Please
> provide pointers on to achieve USB pass-through and hotplug.
> https://wiki.xenproject.org/wiki/Xen_USB_Passthrough
> <https://wiki.xenproject.org/wiki/Xen_USB_Passthrough>

You will need the Linux PVUSB frontend module, which I haven't had
time to upstream yet. Major blocking point was a lack of documentation
of the Xen pv ring protocol the usb maintainer wanted to see first.

I've attached a fairly recent version of the patches in case you want
to build your own kernel with the driver added.


Juergen

Attachment: 0001-usb-Add-Xen-pvUSB-protocol-description.patch
Description: Text Data

Attachment: 0002-usb-Introduce-Xen-pvUSB-frontend-xen-hcd.patch
Description: Text Data

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