[CentOS-virt] USB 3.0 in qemu-kvm-0.12

Wed Mar 30 09:49:14 UTC 2016
Sven Kieske <s.kieske at mittwald.de>

On 29/03/16 22:03, Robert Nichols wrote:
> I suspect I know the answer here, but is qemu-kvm-0.12 simply incapable
> of passing a USB 3.0 device to a guest? USB 2 devices work fine, but
> USB 3 -- nothing.  USB 3.0 works fine in the host, of course.
> Currently using qemu-kvm- in CentOS 6.7.
> I'm guessing I have to upgrade to CentOS 7 to pass USB 3.0 devices
> to the guest.  Hoping to avoid that just now.
A quick search for "rhel usb 3 support kvm" leads to this article:



"USB 3.0 support enabled in KVM as Technology Preview."

also, reading the release notes of upstream might help:


if you CTRL+F "usb 3" you can read:

 USB 3.0 host adapter (xHCI) emulation for KVM guests remains a
Technology Preview in Red Hat Enterprise Linux 7.2.

so it is available but not fully supported.


Mit freundlichen Grüßen / Regards

Sven Kieske

Mittwald CM Service GmbH & Co. KG
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