Resource Mapping
----------------
+[thumbnail="screenshot/gui-datacenter-resource-mappings.png"]
+
When using or referencing local resources (e.g. address of a pci device), using
the raw address or id is sometimes problematic, for example:
a mapping (note that you can currently only map one USB device per node per
mapping).
+[thumbnail="screenshot/gui-datacenter-mapping-pci-edit.png"]
+
Using the GUI makes this much easier, as the correct properties are
automatically picked up and sent to the API.
+[thumbnail="screenshot/gui-datacenter-mapping-usb-edit.png"]
+
It's also possible for PCI devices to provide multiple devices per node with
multiple map properties for the nodes. If such a device is assigned to a guest,
the first free one will be used when the guest is started. The order of the