ok yes, that is not possible with the normal config values, there you have to uses the 'args' line (which is of course more work since the network setup is not done and you'd have to do it yourself, etc.)But how does that work for the virtio-net-pci ? ie. not the real/physicals
IMHO the "real" solution is to go to the provider of the appliance and request support for proxmox ve. It might not do anything in the short term, but if enough users complain, maybe they'll make their appliances compatible
i personally doubt hat we completely rewrite/rethink our pci address assignment for this as it's seldom necessary
don't get me wrong, i can see why you'd need it, so if you want, you can open a feature request on https://bugzilla.proxmox.com with your requirements + use case, maybe someone else on our team has a better idea how to do that