Re: [Qemu-devel] [RFC] Plan for moving forward with QOM

[Paolo Bonzini]

On 09/15/2011 03:57 PM, Anthony Liguori wrote:
> void generate_tree(Device *node)
> {
>     if (IS_PCI_BUS(node)) {
>        for (i = 0; i < 32; i++) {
>           generate_tree(lookup_device(get_property(node, "slot[%d]", i)));
>        }
>     } else if (IS_ISA_BUS(node)) {
>        ....
>     } else {
>        // leaf node, generate path segment
>     }
> }
>
> There are certainly ways to walk the graph generically (by coloring or
> following the composition paths) but that won't give you the desired
> ordering.

It seems easier to go backwards from the target device.

Each device most likely will have a canonical parent link, and together 
they will give the OF path.

Paolo