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f1yn/enable_vifo_not_a_script.sh

Last active November 14, 2022 05:14
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VFIO Setup for GPU passthrough on Fedora 36 (Intel)
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enable_vifo_not_a_script.sh
# This is not a bash script (notice the lack of #!). Please do not run this as a single bash script.
# These commands come AS IS, WITH NO WARRANTY. I AM NOT RESPONSIBLE IF YOU BORK YOUR SYSTEM
# Get these for later
sudo dnf install driverctl
# Install virt manager and friends
sudo dnf group install virtualization
# Get the BUSIDS of the cards
lspci -nn
# Add the IDs to the grub2 bootloader config (you need both graphical and audio)
# ... intel_iommu=on vfio-pci.ids=[busid1],[busid2] ...
sudo vim /etc/default/grub
# Also add the ids to the vfio init conf (you might need to add softdep on the next line if using yucky nvidia drivers)
# ... options vfio-pci ids=[busid1],[busid2] ...
sudo vim /etc/modprobe.d/vfio.conf
# Rebuild grub
sudo grub2-mkconfig -o /boot/grub2/grub.cfg
# Tell dracut that we will be loading vfio and friends on boot
sudo -s
echo "vfio" > /etc/modules-load.d/vfio.conf
echo "vfio-pci" > /etc/modules-load.d/vfio-pci.conf
echo "vfio_iommu_type1" > /etc/modules-load.d/vfio_iommu_type1.conf
exit
# Run dracut command to make sure vfio is correctly loaded after grub
sudo dracut -f --kver "$(uname -r)"
# Reboot then verify
sudo reboot
lspci -k
# Your graphics card (and graphics audio adapter) should both show up with the lines:
# ... Kernel driver in use: vfio-pci ...
# Bonus: Mess around with driverctl to switch between native and vfio-pci as needed
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