mirror of
https://gitlab.com/risingprismtv/single-gpu-passthrough.git
synced 2024-08-30 18:12:14 +00:00
59 lines
1.7 KiB
Bash
Executable File
59 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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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 "$virshId"
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done < "$input"
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# Rebind VT consoles (adapted from https://www.kernel.org/doc/Documentation/fb/fbcon.txt)
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input="/tmp/vfio-bound-consoles"
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while read consoleNumber; do
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if test -x /sys/class/vtconsole/vtcon${consoleNumber}; then
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if [ `cat /sys/class/vtconsole/vtcon${consoleNumber}/name | grep -c "frame buffer"` \
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= 1 ]; then
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echo "Rebinding console ${consoleNumber}"
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echo 1 > /sys/class/vtconsole/vtcon${consoleNumber}/bind
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fi
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fi
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done < "$input"
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# Hack that magically makes nvidia gpus work :)
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if command -v nvidia-xconfig ; then
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nvidia-xconfig --query-gpu-info > /dev/null 2>&1
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fi
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# According to kernel documentation (https://www.kernel.org/doc/Documentation/fb/fbcon.txt),
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# specifically unbinding efi-framebuffer is not necessary after all consoles
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# are unbound (and often times harmful in my experience), so it was omitted here
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# I leave it here for reference in case anyone needs it.
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# Re-Bind EFI-Framebuffer
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# if test -e "/sys/bus/platform/drivers/efi-framebuffer/bind" ; then
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# echo "efi-framebuffer.0" > /sys/bus/platform/drivers/efi-framebuffer/bind
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# else
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# echo "Could not find framebuffer to bind!"
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# fi
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#Load amd driver
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input="/tmp/vfio-loaded-gpu-modules"
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while read gpuModule; do
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modprobe "$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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