On Tue, Feb 23, 2021 at 1:12 PM Lukas Ruzicka <lruzi...@redhat.com> wrote:

>
>> You can set up usb passthrough through virt-manager or VirtualBox. After
>> you do that, the guest gains complete control of that usb device and it
>> should work/behave like it wasn't even in a vm.
>>
>
> I can confirm that you can use USB Passthrough to send the USB sound cards
> to the Virtual Machine which then can use them without limitations. This is
> also valid for MIDI USB controllers.
>
> I think that with using the USB Passthrough strategy, the PipeWire could
> be also tested on VMs.
>
> I will update the test cases.
>

I would be careful with considering such test cases as passed and on par
with bare metal tests. When it is routed to a VM, it still goes through the
host USB stack. Unexpected things can happen. We might mention it as a
testing option, sure, but we should also ask people to append a note saying
"usb-passthrough to a VM" or similar to their result submissions, so that
we can distinguish them.
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