Initial implementation for device path generation of discovered pci devices in aPciTree instance.
Unfortunately, it's a bit clunky to use, since you have to query theDevicePath corresponding to yourPciRootBridgeIo instance yourself and pass that in:

letmut pci_proto =get_open_protocol::<PciRootBridgeIo>(pci_handle);let root_device_path =get_open_protocol::<DevicePath>(pci_handle);let pci_tree = pci_proto.enumerate().unwrap();for addrin pci_tree{// v Would be nicer, if I didn't have to pass root DevicePath in manually here vlet device_path = pci_tree.device_path(&root_device_path, addr).unwrap();}

I tried getting theDevicePath of thePciRootBridgeIo instance withinPciRootBridgeIo::enumerate() and pass that on to thePciTree, but I couldn't find a way to get theDevicePath instance - other than ugly workarounds.

Best consumed Commit-By-Commit. Contains#1830..

Steps to Undraft

• merge and rebase ontouefi: Refactor PciRootBridgeIo::enumerate() with tree-topology information #1830

Checklist

• Sensible git history (for example, squash "typo" or "fix" commits). See theRewriting History guide for help.
• Update the changelog (if necessary)