Graphics Card Virtualization Levels & Status ?

[Shinobi]

I am trying to figure out what all levels of Virtualization can be achieved with Modern Graphics Cards

#	Virtualization Scenario	Mobo/CPU Requirements	Software Requirements	Supported Hardware
1	Complete GPU PCI pass-through to the Guest VM	Intel VTd/AMD IOMMU	kvm & similar	Any Graphics card?
2	GPU & physical Video output ports partitioned for each VM (good for LEFTUVWFGs [Linux Enthusiasts Forced To Use Virtualized Windows For Gaming]) Setup 1 Graphics Card exposes multiple virtual functions (virtual GPUs) Each vGPU has its own PCI configuration space. Pass-through is done at each vGPU level Guest VM1 may use vGPU1 & Guest VM2 may use vGPU2. Video Output VM1 may output video to the DVI port VM2 may output video to the HDMI port VM3 may output video to the DiplayPort port Bonus - Host can use vGPU0 & output video on say VGA port	Intel VTd/AMD IOMMU		Is there any combination of hardware that can do this as of now ? Are the current limitations in the silicon ? or in the firmware/drivers/kvm ? or is that so that it can be done purely in software by time-sharing the GPU, but not worth it ???
3	GPU Partitioned for each VM, but Video is streamed over a network over some remote desktop/terminal services solution Setup Similar to above Video Output No video output onto the physical ports(even if they are there) Video is streamed over the network from the GPU hosting machine to the Client PC Also called VDI (Virtualized Desktop Infrastructure)	Intel VTd/AMD IOMMU		AMD Firepro S7150/S7150X2
4	GPUs that can do it all !!			??

• What is the impact of Looking Glass, a KVM Frame Relay (KVMFR) ?
• Is there a GPU+Software Combo that can do it all as of now ???!!!