GPU passthrough script
!!!This is an old version!!! The newer and better version is at https://github.com/Transistor4aCPU/gpu-passthrough-tools
An interactive script that configures gpu passthrough on debian/ubuntu based linux systems. It automatically configures IOMMU in grub and isolates the GPU choosen for passthrough.
After following the following steps your GPU should be isolated and ready for GPU passthrough
# Install git to clone the GPU passthrough scripts
sudo apt-get install git
# Clone the GPU passthrough scripts
git clone https://github.com/Transistor4aCPU/gpu-passthrough-script.git
# Open the gpu-passthrough-script folder
cd gpu-passthrough-script/
# Configure IOMMU in Grub
sudo bash grub-iommu-conf.sh # Use "sudo bash gui-grub-iommu-conf.sh" if you are on KDE and want to use a GUI
After reboot
# Open the gpu-passthrough-script folder
cd gpu-passthrough-script/
# Configure GPU passthrough
sudo bash gpu-passthrough-script.sh
After reboot
# Check that the passthrough gpu use the vfio driver
lspci -nnv
Troubleshooting notes:
Use verbose mode
# Configure IOMMU in Grub with verbose mode
sudo bash grub-iommu-conf.sh -v
# Configure GPU passthrough with verbose mode
sudo bash gpu-passthrough-script.sh -v
You can't use the initialising GPU for passthrough.
You need at least 2 graphics cards.
If you have additional devices in the IOMMU Group of your GPU and GPU audiocontroller, you need to install and configure the ACSO Kernel patch. Download precompiled Kernels with ACSO Patch: https://queuecumber.gitlab.io/linux-acs-override/
If you have an AM4 based system, you may have error 127 when you start a VM with gpu passthrough. You can prevent that with the Agesa Kernel Patch. The Agesa Kernel Patch https://clbin.com/VCiYJ by Reddit user Hansmoman https://www.reddit.com/r/VFIO/comments/bqeixd/apparently_the_latest_bios_on_asrockmsi_boards/eo4neta/
If you have an AMD GPU with GCN2 or higher, you may will have the restart bug, which doesn't allow you to restart your VM without a system reboot. You can prevent that with various Kernel Patches.
This script https://gist.github.com/mdPlusPlus/031ec2dac2295c9aaf1fc0b0e808e21a automatically compiles an Kernel with the ACSO Patch, Agesa Patch and Vega reset bug Patch.