On 06/06/2022 20:39, Patrick Hibbs wrote:
> It's still an option in VM settings in the Admin WebUI for guest OS 
> selection. oVirt should still support it.
>
> I've even gotten Windows NT 4.0 Workstation to run within oVirt. (With PCI 
> passthough for an old SCSI device.) I wouldn't expect support from oVirt for 
> *that* use case, but Windows 7 is still something I would expect any modern 
> VM software to support. (As of this writing.)
>
> Never mind that one of the reasons to run a VM in the first place is to run 
> (older) software that needs a specific environment to run. Which the main 
> host environment cannot support. I can understand RedHat wanting to reduce 
> it's workload, but developers constantly deprecating support is one of the 
> bigger problems with OSS at the moment. Many people go the OSS route 
> initially for legacy support. (Can't afford the upgrade treadmill.) Cutting 
> that out and forcing people to buy new every time is just going to make them 
> stick with the new thing they bought. While creating a negative view of OSS 
> that they will then spread to others. oVirt as a community project shouldn't 
> be encouraging that.
>
> As for the original question...
>
> You might try removing any extra USB drivers you have installed. (Especially 
> the NEC drivers if you've still got them in there.) Also is that hook from 
> your previous mail still active?

Yes, since the there is no way to make qemu-xhci work on Windows 7, i have to 
change to nec-xhci. It mostly works(usb redirection by spice) after i installed 
the nec usb3.0 controller driver, except "Eject USB storage"
And actually it will become on response only if i cliked "Eject" on the windows 
right corner.



it works if i Eject USB storage from the File Explorer.


> If it is, you can try creating a new VM and attach the existing disk to it. 
> (So you won't have to reinstall Win7 again.) That should give it a default 
> config.
>
> If all else fails, you may need to reinstall Win7 under a new VM profile to 
> get it working again.
>
> If you absolutely need USB3 support under Win7, you could try doing a 
> passthrough of a USB controller on the host system. (You won't be able to use 
> that controller on the host if you do.)
I convince It works but not my option.


Thanks
Zhijian


> That would allow you to use a PCI USB controller card with the appropriate 
> drivers for Windows 7. Granted it's counter to my point above, but at the 
> moment, I don't see how Windows 7 would get USB3 support from qemu / KVM. 
> Short of someone taking the time to write a new virtio driver from scratch. 
> Which has been asked for previously to no avail.
>
> -Patrick Hibbs
>
> On Mon, 2022-06-06 at 13:58 +0200, Sandro Bonazzola wrote:
>> No clue on why this is happening but I'd like to highlight that Windows 7 
>> entered its End of Life on Tuesday, January 14, 2020 according to 
>> https://docs.microsoft.com/en-us/lifecycle/products/windows-7 .
>> I would recommend using supported OSs within guests.
>>
>>
>> Il giorno lun 6 giu 2022 alle ore 11:53 lizhij...@fujitsu.com 
>> <lizhij...@fujitsu.com> ha scritto:
>>> Hi folks,
>>>
>>> It's observed that win7 guest will become no response if i eject usb 
>>> storage "Eject MiniKing"
>>>
>>>
>>>
>>>
>>> the last screen after i clicked "Eject MingKing":
>>>
>>>
>>> After that, i have to hard reset the guest.
>>>
>>>
>>>
>>> Thanks
>>> Zhijian
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