Recover GPU from VM after it shuts down

[promoxer]

Sorry for the long delay. I had to focus on work instead of proxmox. Anyway this worked

cd /sys/bus/pci/drivers/vfio-pci
echo "0000:0X:00.0" > unbind
echo "0000:0X:00.1" > unbind

cd /sys/bus/pci/drivers/nouveau
echo "0000:0X:00.0" > bind

My question now would be, is there a place where I can place this once and it works for all VMs that tries to passthrough the GPU?

 

[leesteken]

My question now would be, is there a place where I can place this once and it works for all VMs that tries to passthrough the GPU?

You can use a hookscript (which you can also write in Bash if you don't speak Perl) per VM.