Comment by jeroenhd
> I think if you wanted to run it on HW, instead of running adding drivers to it a cool strategy would be to build a Linux-based system that acts as a bootloader and then starts a minimal hypervisor. Then you could keep the "virtio is the platform" thing.
That's what I did with my last hackintosh attempt and it works pretty well. The downside: without real GPU events to respond to, you'd be stuck with whatever resolution Linux decided upon in whatever screen configuration Linux decided to boot.
If this thing can run as a UEFI executable rather than a real OS, you might be able to use the UEFI video drivers to get video working relatively easily without having virtio graphics, but I'm not sure if it's even possible to pull that off while doing real OS things.
Nice!
I am skeptical that the UEFI drivers would be up to the job. I worked on EDK2 drivers many many years ago and things were not really optimised for speed. Mostly we just did the simplest thing that would boot Linux without any unnecessary delays.
Plus they are very often gonna be buggy and there's not much you can do about buggy UEFI FW.