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Virtio-nvgpu: Near-native Nvidia GPU access inside a KVM guest

155 points · 65 comments · WanjohiRyan

  1. orphereus · · focus · HN ↗
    Why not use normal GPU passthrough? I don't see how you can use this to share a GPU between multiple VMs, so what is the benefit of using this software over normal GPU passthrough with vfio-pci drivers?
    1. Tajnymag · · focus · HN ↗
      With normal passthrough, your host loses access to the gpu, no? So you need to have two gpus, one for the host and one for the guest. Correct me, if I am wrong, but this should make the host fully operational on a single gpu and still let vm guests have headless access to the host gpu.
      1. orphereus · · focus · HN ↗
        Is it really that simple to split an Nvidia GPU between multiple users like that? I thought that you have to have specific drivers which support that.
        1. gmerc · · focus · HN ↗
          that's paid
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