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I know very little about FreeBDS and bhyve. But, is it possible to pass direct access to the GPU to the virtual machine this way? That way it would be possible

by jbssm 11y ago

I know very little about FreeBDS and bhyve. But, is it possible to pass direct access to the GPU to the virtual machine this way? That way it would be possible to play the games in Windows or to use CUDA in a Linux guest inside bhyve.

anoother 11y ago
It seems the answer should be 'yes': https://github.com/pr1ntf/iohyve/wiki/USB-3.0-PCI-Controller-Pass-through https://github.com/pr1ntf/iohyve/wiki/USB-3.0-PCI-Controller...
DiabloD3 11y ago
bhyve would have to support what is called "PCI-E passthrough", and support such functionality via IOMMUs to allow device-initiated DMAs to work (which GPUs, >=10gbit NICs, storage controllers, etc, all require). KVM, Xen, and ESXI all support this, so if bhyve doesn't support it yet, it most likely will in the future.
- qbrass 11y ago
  It should work for Intel's VT-d, but you're out of luck if you use AMD.
  - grubles 11y ago
    What? AMD has support for IOMMU.
    - sveiss 11y ago
      The implementation is different to Intel's. AFAIK, bhyve has code to support one but not the other.
jlgaddis 11y ago
I don't have an answer to your question but note that bhyve is still very new, it is still very experimental, and the feature list is still pretty short. That said, work is ongoing and progressing pretty quickly.
techdragon 11y ago
You won't have much help from Nvidia, they like to disable this sort of thing when they can, artificial limits in their binary drivers etc.