mirror of
https://gitlab.com/risingprismtv/single-gpu-passthrough.git
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Merge minimal scripts
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Risingprism
parent
fc2769db05
commit
4d9866cc15
@ -8,46 +8,42 @@ short_delay=1
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echo "Beginning of startup!"
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function stop_display_manager_if_running {
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if systemctl is-active --quiet $1 ; then
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echo $1 >> /tmp/vfio-store-display-manager
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systemctl stop $1
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# Stop dm using systemd
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if command -v systemctl; then
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if systemctl is-active --quiet "$1.service" ; then
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echo $1 >> /tmp/vfio-store-display-manager
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systemctl stop "$1.service"
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fi
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while systemctl is-active --quiet "$1.service" ; do
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sleep "${short_delay}"
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done
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return
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fi
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while systemctl is-active --quiet $1 ; do
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sleep "${short_delay}"
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done
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}
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function unload_module_if_loaded {
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if lsmod | grep $1 &> /dev/null ; then
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modprobe -r $1
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echo $1 >> /tmp/vfio-loaded-gpu-modules
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# Stop dm using runit
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if command -v sv; then
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if sv status $1 ; then
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echo $1 >> /tmp/vfio-store-display-manager
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sv stop $1
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fi
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fi
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while lsmod | grep $1 &> /dev/null ; do
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sleep 1
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done
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}
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function get_virsh_id {
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python -c "print('pci_0000_'+'$1'.split(':')[0] + '_' + '$1'.split(':')[1].split('.')[0] + '_' + '$1'.split(':')[1].split('.')[1])"
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}
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function get_pci_id_from_device_id {
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lspci -nn | grep $1 | awk '{print $1}'
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}
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# Stop currently running display manager
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if test -e "/tmp/vfio-store-display-manager" ; then
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rm -f /tmp/vfio-store-display-manager
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fi
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stop_display_manager_if_running sddm.service
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stop_display_manager_if_running gdm.service
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stop_display_manager_if_running lightdm.service
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stop_display_manager_if_running lxdm.service
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stop_display_manager_if_running xdm.service
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stop_display_manager_if_running mdm.service
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stop_display_manager_if_running display-manager.service
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stop_display_manager_if_running sddm
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stop_display_manager_if_running gdm
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stop_display_manager_if_running lightdm
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stop_display_manager_if_running lxdm
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stop_display_manager_if_running xdm
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stop_display_manager_if_running mdm
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stop_display_manager_if_running display-manager
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# Unbind VTconsoles if currently bound (adapted from https://www.kernel.org/doc/Documentation/fb/fbcon.txt)
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if test -e "/tmp/vfio-bound-consoles" ; then
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@ -65,53 +61,14 @@ do
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fi
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done
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# According to kernel documentation (https://www.kernel.org/doc/Documentation/fb/fbcon.txt),
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# specifically unbinding efi-framebuffer is not necessary after all consoles
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# are unbound (and often times harmful in my experience), so it was omitted here
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# I leave it here for reference in case anyone needs it.
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#Unbind EFI-Framebuffer if currently bound
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# if test -e "/sys/bus/platform/drivers/efi-framebuffer/unbind" ; then
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# echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind
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# else
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# echo "Could not find framebuffer to unload!"
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sleep "${long_delay}"
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# Unload loaded GPU drivers
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if test -e "/tmp/vfio-loaded-gpu-modules" ; then
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rm -f /tmp/vfio-loaded-gpu-modules
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# Unbind EFI-Framebuffer
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if test -e "/tmp/vfio-is-nvidia" ; then
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rm -f /tmp/vfio-is-nvidia
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fi
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unload_module_if_loaded amdgpu-pro
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unload_module_if_loaded amdgpu
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unload_module_if_loaded nvidia_drm
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unload_module_if_loaded nvidia_modeset
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unload_module_if_loaded nvidia_uvm
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unload_module_if_loaded nvidia
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unload_module_if_loaded ipmi_devintf
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unload_module_if_loaded nouveau
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unload_module_if_loaded i915
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# Unbind the GPU from display driver
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if test -e "/tmp/vfio-virsh-ids" ; then
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rm -f /tmp/vfio-virsh-ids
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if lsmod | grep "nvidia" &> /dev/null ; then
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echo "true" >> /tmp/vfio-is-nvidia
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echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind
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fi
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gpu_device_id=$(modprobe -c vfio-pci | grep 'options vfio_pci ids' | cut -d '=' -f2 | cut -d ',' -f 1)
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gpu_audio_device_id=$(modprobe -c vfio-pci | grep 'options vfio_pci ids' | cut -d '=' -f2 | cut -d ',' -f 2)
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gpu_pci_id=$(get_pci_id_from_device_id ${gpu_device_id})
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gpu_audio_pci_id=$(get_pci_id_from_device_id ${gpu_audio_device_id})
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virsh_gpu_id=$(get_virsh_id ${gpu_pci_id})
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virsh_gpu_audio_id=$(get_virsh_id ${gpu_audio_pci_id})
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echo ${virsh_gpu_audio_id} >> /tmp/vfio-virsh-ids
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echo ${virsh_gpu_id} >> /tmp/vfio-virsh-ids
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virsh nodedev-detach "${virsh_gpu_id}"
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virsh nodedev-detach "${virsh_gpu_audio_id}"
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# Load VFIO kernel module
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modprobe vfio-pci
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echo "End of startup!"
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@ -3,15 +3,16 @@ set -x
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echo "Beginning of teardown!"
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# Unload VFIO-PCI Kernel Driver
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modprobe -r vfio-pci
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modprobe -r vfio_iommu_type1
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modprobe -r vfio
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# Re-Bind GPU to AMD Driver
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input="/tmp/vfio-virsh-ids"
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while read virshId; do
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virsh nodedev-reattach "$virshId"
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# Restart Display Manager
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input="/tmp/vfio-store-display-manager"
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while read displayManager; do
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if command -v systemctl; then
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systemctl start "$displayManager.service"
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else
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if command -v sv; then
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sv start $displayManager
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fi
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fi
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done < "$input"
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# Rebind VT consoles (adapted from https://www.kernel.org/doc/Documentation/fb/fbcon.txt)
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@ -26,33 +27,9 @@ while read consoleNumber; do
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fi
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done < "$input"
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# Hack that magically makes nvidia gpus work :)
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if command -v nvidia-xconfig ; then
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nvidia-xconfig --query-gpu-info > /dev/null 2>&1
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# Rebind framebuffer for nvidia
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if test -e "/tmp/vfio-is-nvidia" ; then
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echo "efi-framebuffer.0" > /sys/bus/platform/drivers/efi-framebuffer/bind
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fi
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# According to kernel documentation (https://www.kernel.org/doc/Documentation/fb/fbcon.txt),
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# specifically unbinding efi-framebuffer is not necessary after all consoles
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# are unbound (and often times harmful in my experience), so it was omitted here
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# I leave it here for reference in case anyone needs it.
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# Re-Bind EFI-Framebuffer
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# if test -e "/sys/bus/platform/drivers/efi-framebuffer/bind" ; then
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# echo "efi-framebuffer.0" > /sys/bus/platform/drivers/efi-framebuffer/bind
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# else
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# echo "Could not find framebuffer to bind!"
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# fi
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#Load amd driver
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input="/tmp/vfio-loaded-gpu-modules"
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while read gpuModule; do
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modprobe "$gpuModule"
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done < "$input"
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# Restart Display Manager
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input="/tmp/vfio-store-display-manager"
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while read displayManager; do
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systemctl start "$displayManager"
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done < "$input"
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echo "End of teardown!"
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