> On 18 Aug 2017, at 08:23, Дровалев Роман <[email protected]> wrote:
> 
> Hello, Please  help!
> 
> Does anyone have a working USB forwarding in a virtual machine? If
> "YES", how did you solve this problem?

well, yes. 
But unless you share a bit about what your problem is I doubt it’s of any help…
are you talking about passing through a host usb controller into a VM? Is your 
host capable of proper hardware device isolation? If not, it may need some 
workarounds. Going through [1] might help too, most of the constraints are 
applicable to USB passthrough as well

Thanks,
michal

[1] https://mpolednik.github.io/2017/03/19/hostdev-passthrough-pci/
> 
> If this problem is not solved, unfortunately, the ovirt will have to
> completely abandon. ((
> 
> oVirt Engine Version: 4.1.4.2-1.el7.centos
> 
> Thanks.
> 
> 
> 
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