Very recent versions of Qemu have "experimental" support for HVF, so in theory it should work. I haven't had a chance to try it yet, however, and it's possible that there are some MSRs or similar that aren't sufficiently supported yet. If this is something you(r employer/company) care about, feel free to get in touch as I suspect it's not too difficult to fix if it doesn't currently work.

I believe it did work 2 years ago, Veertu Desktop seemed to be based on the Qemu with HVF.

Yep, but back then I think it was just commercial -- I believe everything got upstreamed.

(The nice thing about Veertu using HVF was that it could ship a virtualization product in the App Store.)