Patrick thank you. on 2022/6/2 19:50, Patrick Hibbs wrote:

Windows 7 doesn't have native USB 3.0 support.

Well, so sad.

Some people have reported success with the NEC USB 3.0 drivers, but alas there is no generic nor virt specific USB 3.0 driver for Windows 7.

Yes, I also noticed the NCE drivers, but i failed to attach it to the guest with the default i440fx machine(i'm using ovirt-4.3)

In other KVM managers there is an option to change the emulated USB controller to 2.0 only, but oVirt lacks such an option.

You might have luck with writing a custom hook to change the vm domain xml at launch if you really need it.

I did so where the hook will change win7 guest driver to usb2.0, but it's a bit ugly and i don't know iif guest is win7 or not.

You could also try changing the custom machine type to one of the i440fx variants to see if that gives you USB 2.0, but I've not attempted it recently.

Do you need USB 3.0 specificily, or is this a "want to get rid of that last yellow caution symbol in Device Manager" thing? :)

I perfer to use USB3.0, since nowadays almost all spice-client are running on a usb3.0 host. Without usb3.0 support, i'm unable to redirect usb3.0 storage to the guest. Thanks Zhijian

-Patrick Hibbs

On Thu, 2022-06-02 at 07:05 +0000, lizhijian@fujitsu.com wrote:

...

Hi folks

I'm trying to enable usb3.0 for all guest. Currently, win10 and linux guest work well with qemu-xhci device while win7sp1 doesn't I have googled usb3 drivers for win7, but none of them match qemu-xhci.

So any body know where i can download this driver for win7

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