[AshamedCaptain]

I would say the complete opposite. The only reason one may have to use a real GPU driver backed by a partitioned GPU is precisely desktop gaming, as there you are more interested in performance than anything else and the arbitrary limits set by your GPU vendor (e.g. 1 partition only) may not impact you at all.

If you want to really divide hardware resources, then as I argue in the other thread doing it in software is clearly a much more sensible way to go. You are not subject to the whims of the GPU vendor and the OS, rather than the firmware, control the partition boundaries. Same as what has been done in practically every other virtualized device (CPUs, memory, etc.). We never expected the hardware to need to partition itself; I'd even have a hard time calling that "virtualization" at all. Plus, the way hardware is designed these days, it is highly unlikely that the PCI virtual functions of a GPU function as an effective security boundary. If it wasn't for performance, using hardware partitioning would never be a worthwhile tradeoff.