I faced the same problem after the last Arch upgrade. Once the initial
frustration was gone, I simply disabled the Hyper-V features and,
honestly, see no difference in how the games I play perform. The Witcher
3 even seems to run a tad smoother, but it could also be due to a recent
GPU driver update or a psychological effect. 

Still, having the regression in libvirt fixed would be nice. 

Cheers,
Hristo 

Am 06.04.2017 15:57, schrieb Nicolas Roy-Renaud:

> Since tuesday, I've been unable to boot into my Windows VM. It always fails 
> to boot with the following error : 
> 
> error: unknown CPU feature __kvm_hv_vendor_id I thought this might be due to 
> a config error at first, but people on reddit [1] have been getting a similar 
> issue as well, and seem to have the Libvirt 3.2 update to blame for this 
> regression. Is anyone else here getting this and is the bug known to the 
> libvirt devs?
> 
> - Nicolas
> 
> _______________________________________________
> vfio-users mailing list
> [email protected]
> https://www.redhat.com/mailman/listinfo/vfio-users

 

Links:
------
[1] https://www.reddit.com/r/VFIO/comments/63nr1l
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