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On Tue, Sep 27, 2016 at 07:59:55PM -0700, Drew White wrote:
> On Wednesday, 28 September 2016 12:46:10 UTC+10, johny...@sigaint.org  wrote:
> > Pretty sure the answer is "no."  You can assign a whole USB bus (which is
> > typically a single PCI device) to a VM, but you can't split it up beyond
> > that, other than the default of having dom0 relay specific devices to
> > specific VM's (which isn't dom0 USB isolation at all).
> > 
> > My mobo has 8 USB ports, but they're all on a single bus, so it's all or
> > nothing.
> > 
> 
> Hi JJ,
> 
> My PC has 10 USB Bus's.
> My keyboard and mouse are on bus 10, which is PCI device XXXX.XX.X and I left 
> that one on Dom0.
> 
> However I now have another issue...
> 
> "Error starting VM 'sys-usb': Requested operation is not valid: PCI device 
> 0000:00:1a.0 is in use by driver xenlight, domain sys-usb"

I assume this is after previous failed sys-usb startup, right? There is
a bug in libvirt that device is not marked as unused when VM fails to
start. Workaround: restart libvirtd service. Close Qubes Manager first.

If you still get an error, take a look here:
https://www.qubes-os.org/doc/user-faq/#i-created-a-usbvm-and-assigned-usb-controllers-to-it-now-the-usbvm-wont-boot

- -- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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