VFIO-Tools

A collection of tools and scripts that aim to make PCI passthrough a little easier. For more in-depth guides on how to use these tools, as well as PCI passthrough related news, benchmarks and tutorials, visit us on https://passthroughpo.st

libvirt_hooks

QEMU hook helper

This contains a hook-helper for libvirt which allows easier per-VM hooks.
Simply drop the qemu file in $SYSCONFDIR/libvirt/hooks/ (usually /etc/libvirt/hooks) and you're ready to add hooks.
You can have a virtually limitless number of hook scripts per VM and per hook call, just keep in mind that a failed hook will prevent a VM from starting.
The way to add hooks is as follows:

• Create a file in a path matching this structure:

$SYSCONFDIR/libvirt/hooks/qemu.d/vm_name/hook_name/state_name/yourhook.conf

• You can put anything you like in the hook, as long as you make sure you start your hook with a hashbang (i.e. #!/bin/bash).
• When you're done setting up your hook, run chmod +x on your hook file to make it executable.
• If you've added the qemu hook helper file for the first time, you need to restart libvirt in order for it to be detected.

switch_displays.sh

This hook allows you to automatically switch your monitor input to your VM's display.
To achieve this you need to have ddcutil installed and working and you need a DDC/CI capable monitor.
For a more detailed explanation and write-up, check out https://passthroughpo.st

 

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