Is it possible to PCI passthrough my only GPU temporary to a VM?

[Guerlan]

I only have one GPU, which is an Intel UDH graphics. Obviously Qubes uses it to display graphics. However, I think it's theoretically possible to disable my GPU from dom0 and do a PCI passthrough to another VM, which will then appear as fullscreen (I will not be able to use Qubes meanwhile). Then when I need Qubes again I can simply reattach the GPU to dom0.

Is it really possible, and if so, could someone guide me into how to achieve this?

I mainly want this because my laptop don't have a dedicated GPU and I'm developing an application which decodes video and sometimes I need to test GPU decoding. It'd be also fun to play some video games.

[awokd]

Guerlan:

Not really any way to do that with Qubes. It is less than ideal for
security, but you might consider dual boot.

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