It's... complicated. And yeah, at that point, it wouldn't have many use cases. The hypervisor I wrote for research purposes passes through all the hardware (ex

It's... complicated. And yeah, at that point, it wouldn't have many use cases. The hypervisor I wrote for research purposes passes through all the hardware (except the UART), which is easier than trying to do it on top of Linux. But it also doesn't try to be a secure hypervisor or anything like that (it would be trivial for the guest to take over).