Since new modules have been added to the initramfs configuration, you must regenerate the initramfs. Should you change the IDs of the devices in
/etc/modprobe.d/vfio.conf , you will also have to regenerate it, as those parameters must be specified in the initramfs to be known during the early boot stages.
That’s directly pasted form the following Arch Wiki page:
So how do I do that?
This, and the other topic I made about UEFI not being available in virt-manager when I create a VM with QEMU is preventing me from using my Nvidia card with the VFIO driver to passthrough my Nvidia GPU to the VM.