105 lines
3 KiB
Bash
Executable file
105 lines
3 KiB
Bash
Executable file
#!/bin/bash
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function set_KERNELSTUB () {
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clear
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# Tell what we are going to do
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echo "Adding vfio kernel arguments to systemd-boot using kernelstub"
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# Get the config paths
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source "${SCRIPTDIR}/lib/paths.sh"
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# Check if systemd-boot already has vfio parameters from before
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KERNELSTUB_TEST=$(sudo kernelstub -p 2>&1 | grep "Kernel Boot Options" | perl -pe "s/.+Kernel Boot Options:\..+(vfio_pci.ids=.+ ).+/\1/")
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# If there are already vfio_pci parameters in kernelstub
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if [[ "$KERNELSTUB_TEST" =~ vfio_pci.ids ]] ;
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then
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# Remove the old parameters
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sudo kernelstub -d "$KERNELSTUB_TEST"
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sudo kernelstub -d "vfio_pci.disable_vga=1"
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sudo kernelstub -d "vfio_pci.disable_vga=0"
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fi
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# Apply new parameters
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CMDLINE=$(cat "${SCRIPTDIR}/config/kernel_args")
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sudo kernelstub -a "$CMDLINE"
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show_FINISH
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}
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function show_FINISH () {
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clear
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# Get the config paths
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source "${SCRIPTDIR}/lib/paths.sh"
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local CMDLINE
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CMDLINE=$(cat "${SCRIPTDIR}/config/kernel_args")
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echo "Configuration is now complete!"
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if [ $1 == 0 ];
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then
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printf "For VFIO to work properly you need to make sure these kernel parameters are in your bootloader entry:
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#-----------------------------------------------#
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%s
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#-----------------------------------------------#
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" "$CMDLINE"
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fi
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echo "Restart your system and run
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\"$SCRIPTDIR/vfio-verify\"
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to check if your GPU is properly set up.
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If the graphic card is bound to vfio-pci then you can
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proceed to add it to your virtual machines.
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A backup the files we replaced on your system can be found inside
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$SCRIPTDIR/backup/
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In order to restore these files just copy them back to your system and run
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\"sudo update-initramfs -u\"
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You can remove the the vfio_pci kernel arguments from the linux line in your bootloader
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to disable/unbind the graphic card from the vfio driver on boot.
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The files inside \"$SCRIPTDIR/$QUICKEMU\" are currently unused files, however they provide
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the required information that the QuickEMU project can hook into and use to add support for VFIO enabled VMs.
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The PCI Devices with these IDs are what you should add to your VMs:
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NOTE: Some AMD GPUs will require the vendor-reset kernel module from https://github.com/gnif/vendor-reset to be installed!"
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source "$SCRIPTDIR/config/quickemu/qemu-vfio_vars.conf"
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for dev in "${GPU_PCI_ID[@]}"
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do
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echo "* $dev"
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done
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for dev in "${USB_CTL_ID[@]}"
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do
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echo "* $dev"
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done
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}
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function set_CMDLINE () {
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# Make a variable to tell if
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local BOOTLOADER_AUTOCONFIG
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BOOTLOADER_AUTOCONFIG=0
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# If kernelstub is detected (program to manage systemd-boot)
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if which kernelstub ;
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then
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# Configure kernelstub then exit
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set_KERNELSTUB
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BOOTLOADER_AUTOCONFIG=1
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fi
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show_FINISH $BOOTLOADER_AUTOCONFIG
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}
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function main () {
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SCRIPTDIR=$(dirname "$(which $0)" | perl -pe "s/\/\.\.\/lib//" | perl -pe "s/\/lib$//")
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set_CMDLINE
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}
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main
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