2 identical GPUS. Passthrough for libvirt+Qemu?

Hello can someone please describe what needs to be done to get GPU passthrough working in libvirt+Qemu when I have 2 identical GPUS? The problem would seem similar to this https://www.linuxquestions.org/quest...nt-4175720407/

I Have no idea what I'm doing so an overview of the process would be extremely helpful and much appreciated. Thanks.