2020-04-25 04:32:07 +00:00
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#!/bin/bash
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# Helpful to read output when debugging
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set -x
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2020-10-04 00:25:26 +00:00
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long_delay=10
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medium_delay=5
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short_delay=1
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echo "Beginning of startup!"
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2020-04-25 04:32:07 +00:00
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2020-10-04 01:05:49 +00:00
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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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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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fi
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while lsmod | grep $1 &> /dev/null ; do
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sleep 1
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done
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}
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2020-10-04 00:25:26 +00:00
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# Stop currently running display manager
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if test -e "/tmp/vfio-store-display-manager" ; then
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rm -f /tmp/vfio-store-display-manager
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fi
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2020-10-04 01:05:49 +00:00
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stop_display_manager_if_running sddm.service
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stop_display_manager_if_running gdm.service
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stop_display_manager_if_running lightdm.service
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stop_display_manager_if_running lxdm.service
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stop_display_manager_if_running xdm.service
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2020-04-25 04:32:07 +00:00
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2020-10-04 00:25:26 +00:00
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# Unbind VTconsoles if currently bound
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if test -e "/sys/class/vtconsole/vtcon0/bind" ; then
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echo 0 > /sys/class/vtconsole/vtcon0/bind
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sleep "${long_delay}"
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fi
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if test -e "/sys/class/vtconsole/vtcon1/bind" ; then
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echo 0 > /sys/class/vtconsole/vtcon1/bind
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sleep "${long_delay}"
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fi
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2020-04-25 04:32:07 +00:00
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2020-10-04 00:25:26 +00:00
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#Unbind EFI-Framebuffer if currently bound
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2020-10-04 01:05:49 +00:00
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# if test -e "/sys/bus/platform/drivers/efi-framebuffer/unbind" ; then
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# echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind
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# sleep "${medium_delay}"
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# else
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# echo "Could not find framebuffer to unload!"
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# fi
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2020-10-04 00:25:26 +00:00
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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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fi
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2020-10-04 01:05:49 +00:00
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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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2020-04-25 04:32:07 +00:00
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# Unbind the GPU from display driver
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virsh nodedev-detach pci_0000_01_00_0
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virsh nodedev-detach pci_0000_01_00_1
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# Load VFIO kernel module
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modprobe vfio-pci
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2020-10-04 00:25:26 +00:00
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echo "End of startup!"
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