nixos/modules/gpuPassthrough/scripts/stop.sh

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#!/bin/bash
set -x
# Load variables
source "/etc/libvirt/hooks/kvm.conf"
# Unload VFIO-PCI Kernel Driver
modprobe -r vfio-pci
modprobe -r vfio_iommu_type1
modprobe -r vfio
# Re-Bind GPU to Nvidia Driver
virsh nodedev-reattach $VIRSH_GPU_VIDEO
virsh nodedev-reattach $VIRSH_GPU_AUDIO
virsh nodedev-reattach $VIRSH_USB
virsh nodedev-reattach $VIRSH_SERIAL_BUS
# Rebind VT consoles
echo 1 > /sys/class/vtconsole/vtcon0/bind
echo 1 > /sys/class/vtconsole/vtcon1/bind
# Bind EFI-Framebuffer
nvidia-xconfig --query-gpu-info > /dev/null 2>&1
echo "efi-framebuffer.0" > /sys/bus/platform/drivers/efi-framebuffer/bind
# Load all Nvidia drivers
modprobe nvidia_drm
modprobe nvidia_modeset
modprobe drm_kms_helper
modprobe drm
modprobe nvidia_uvm
modprobe nvidia
# Restart Display Manager
systemctl start gdm.service