On 01/06/2015 12:08 AM, Frederick N. Brier wrote:
> I'm using Spice and want to share a USB device on workstation with a VM
> running on another physical host.  The filters are all set up for the VM in
> its domain XML.  The Spice "Select USB devices for redirection" dialog shows
> the device I want to redirect.  However, all the USB devices are greyed out
> and Alert text says, "Some USB devices are blocked by host policy".  My
> understanding, from the doc
> <https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/sect-limit-redirection.html>,
> is that the following XML needs to be configured on the "host physical
> machine's domain XML" which I am interpreting as the workstation, although it
> could be the hypervisor host, to unblock the USB device:
> 
> <redirfilter>
>   <usbdev class='0x08' vendor='0x0951' product='0x1625' version='2.0' 
> allow='yes'/>
>   <usbdev allow='no'/>
> </redirfilter>
> 
> Either way, I cannot figure out what the name or location of the file where
> this XML would go, let alone find a complete schema or example of what the
> file would look like.  Has anyone else done this?  Please... <gasp> Help!
> 

I've never seen that message before. Can you provide the guest XML you are
using? And maybe upload a screenshot somewhere of what you are seeing in
virt-viewer.

What type of device are you trying to passthrough?

CCing hans who is the usbredir expert

- Cole
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