If this uses vfio then no, the host never sees the GPU, it's blind to it from bo...

fulafel · on July 18, 2021

What is stopping GPU hot plugging from working?

There was this recent improvement at least: https://phoronix.com/scan.php?page=news_item&px=Linux-5.14-A...

edit: seems there are some howtos - eg https://github.com/joeknock90/Single-GPU-Passthrough

pizza234 · on July 18, 2021

Two reasons (in the context of a standard desktop user, not headless server):

1. Desktop environment, which uses the video card; this is not a big deal, since one can terminate the session

2. video drivers correctly and fully releasing the card; this is possible, but in my opinion, not stable.

throwaway2048 · on July 18, 2021

Not really a problem, you can unbind the VFIO driver

genewitch · on July 18, 2021

> linux /vmlinuz-5.10.27-gentoo root=/dev/nvme0n1p2 ro amd_iommu=on iommu=pt pcie_acs_override=downstream,multifunction pci-stub.ids=10de:1b82,10de:10f0

the host never sees the card.

throwaway2048 · on July 18, 2021

thats using the pci-stub driver, not VFIO