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If this uses vfio then no, the host never sees the GPU, it's blind to it from boot.
by genewitch 5y ago
If this uses vfio then no, the host never sees the GPU, it's blind to it from boot.
- throwaway2048 5y agoNot really a problem, you can unbind the VFIO driver
- genewitch 5y ago> 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 5y agothats using the pci-stub driver, not VFIO
- fulafel 5y agoWhat 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-AMDGPU-Hot-Unplug 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 https://github.com/joeknock90/Single-GPU-Passthrough
- pizza234 5y agoTwo 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.