[shadilay]

You could say the Same about non IOMMU CPU virtualization. The problem here is AMD and Nvidias disgusting greed that has held back security by at least a decade. GPU virtualization (vGPU/MxGPU) is supported but only if you pay ridiculous enterprise licensing. This should be a first class feature like VT-d and would enable a usable Qubes desktop and Microsoft's VBS.

https://en.wikipedia.org/wiki/GPU_virtualization#Mediated_pa...

MS also killed RemoteFX because of security.

[elliotkillick]

Wow, I was unaware such hardware virtualization extensions currently existed in such mature form for GPUs. Really unfortunate that they've been lost to the avarice of two tech giants which have a duopoly over the GPU market.

[shadilay]

They're not that mature software wise due to the fact that hardly anyone uses them. Microsoft may save us here because Virtualization Based Security has to be enabled to sell an OEM PC with a Win11 sticker. Doing GPU virtualization in software has a big performance hit if not hardware assisted (like CPU virt). Hopefully this will twist enough arms at AMD/Nvidia that they will be forced to open up virt features on consumer cards. I asked an Intel graphics rep if virt would be supported on Intel's new discrete parts (Arc series) and they said wait until launch to see which is at least better than last year when they told me they had no plans.

https://www.pcgamer.com/windows-11-pcs-can-hobble-gaming-per...