mirror of https://gitlab.com/YuriAlek/vfio
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160 lines
3.2 KiB
Bash
160 lines
3.2 KiB
Bash
#!/bin/bash
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# Check if the script is executed as root
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if [ "$EUID" -ne 0 ]
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then echo "Please run as root"
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exit 1
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fi
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# END Check if you are sudo
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source config.sh
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_start()
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{
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# Memory lock limit
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if [ $(ulimit -a | grep "max locked memory" | awk '{print $6}') != 12884900 ]; then
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ulimit -l 12884900
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fi
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## Kill X and related
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systemctl stop lightdm > /dev/null 2>&1
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killall i3 > /dev/null 2>&1
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sleep 2
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# Kill the console to free the GPU
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echo 0 > /sys/class/vtconsole/vtcon0/bind
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sleep 1
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echo 0 > /sys/class/vtconsole/vtcon1/bind
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sleep 1
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echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind
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sleep 1
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# Unload the Kernel Modules that use the GPU
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modprobe -r nvidia_drm
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sleep 1
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modprobe -r nvidia_modeset
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sleep 1
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modprobe -r nvidia
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sleep 1
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modprobe -r snd_hda_intel
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sleep 2
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# Load the kernel module
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modprobe vfio
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sleep 1
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modprobe vfio_iommu_type1
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sleep 1
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modprobe vfio-pci
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sleep 1
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# Detach the GPU from drivers and attach to vfio. Also the usb.
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echo $videoid > /sys/bus/pci/drivers/vfio-pci/new_id
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sleep 1
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echo $videobusid > /sys/bus/pci/devices/$videobusid/driver/unbind
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sleep 1
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echo $videobusid > /sys/bus/pci/drivers/vfio-pci/bind
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sleep 1
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echo $videoid > /sys/bus/pci/drivers/vfio-pci/remove_id
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sleep 1
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echo $audioid > /sys/bus/pci/drivers/vfio-pci/new_id
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sleep 1
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echo $audiobusid > /sys/bus/pci/devices/$audiobusid/driver/unbind
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sleep 1
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echo $audiobusid > /sys/bus/pci/drivers/vfio-pci/bind
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sleep 1
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echo $audioid > /sys/bus/pci/drivers/vfio-pci/remove_id
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sleep 1
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echo $usbid > /sys/bus/pci/drivers/vfio-pci/new_id
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sleep 1
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echo $usbbusid > /sys/bus/pci/devices/$usbbusid/driver/unbind
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sleep 1
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echo $usbbusid > /sys/bus/pci/drivers/vfio-pci/bind
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sleep 1
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echo $usbid > /sys/bus/pci/drivers/vfio-pci/remove_id
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#ls -la /sys/bus/pci/devices/$usbbusid/
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sleep 1
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}
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_stop()
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{
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# Wait for QEMU to finish before continue
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wait
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sleep 5
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# Unload the vfio module. I am lazy, this leaves the GPU without drivers
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modprobe -r vfio-pci
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sleep 2
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modprobe -r vfio_iommu_type1
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sleep 2
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modprobe -r vfio
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sleep 2
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# Reload the kernel modules. This loads the drivers for the GPU
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modprobe snd_hda_intel
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sleep 5
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modprobe nvidia_drm
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sleep 2
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modprobe nvidia_modeset
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sleep 2
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modprobe nvidia
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sleep 5
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# Bind the usb
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#echo $usbid > /sys/bus/pci/drivers/xhci_hcd/new_id
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echo $usbbusid > /sys/bus/pci/devices/$usbbusid/driver/unbind
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echo $usbbusid > /sys/bus/pci/drivers/xhci_hcd/bind
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sleep 10
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#echo $usbid > /sys/bus/pci/drivers/xhci_hcd/remove_id
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#ls -la /sys/bus/pci/devices/$usbbusid/
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# Re-Bind EFI-Framebuffer and Re-bind to virtual consoles
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# [Source] [https://github.com/joeknock90/Single-GPU-Passthrough/blob/master/README.md#vm-stop-script]
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echo 1 > /sys/class/vtconsole/vtcon0/bind
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sleep 1
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echo 1 > tee /sys/class/vtconsole/vtcon1/bind
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sleep 5
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#echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/bind
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#sleep 1
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# Reload the Display Manager to access X
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systemctl start lightdm
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sleep 5
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echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/bind
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sleep 1
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# Restore ulimit
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ulimit -l $ULIMIT
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}
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_help()
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{
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echo "Usage: test-qemu.sh [OPTIONS]"
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echo " start"
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echo " stop"
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}
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_do()
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{
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if [ "$1" = "start" ]; then
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_start
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exit
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elif [ "$1" = "stop" ]; then
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_stop
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exit
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else
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_help
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exit 1
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fi
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}
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if [[ $1 ]]; then
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_do $1
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else
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_help
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exit 1
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fi
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