qemu from xml to native assign PCI device

Question

I'm stuck between two worlds here. I have part of a VM in virsh/XML and part in qemu native commands and I'm trying to unify them so my last bit is to transform this XML part into qemu native:

<hostdev mode='subsystem' type='pci' managed='yes'>
  <source>
    <address domain='0x0000' bus='0x0d' slot='0x00' function='0x3'/>
  </source>
  <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</hostdev>

It's a USB controller/port/whatever. I found some code on the internet which suggests using -device pci-assign,host=0d:00.3 but that doesn't work any more: qemu-system-x86_64: -device pci-assign,host=0d:00.3: 'pci-assign' is not a valid device model name so I'm lost here.