Re: [PATCH for-9.0] qapi: Add 'recurse-children' option to qom-list

[Alberto Garcia]

On Fri 22 Dec 2023 11:31:12 AM +01, Markus Armbruster wrote:
>> This allows returning a tree of all object properties under a given
>> path, in a way similar to scripts/qmp/qom-tree.
>
> Use case?  We already have that script, and also HMP info qom-tree.

The main use case is convenience.

Management tools need to manually check that the type starts with
"child<" and recursively make a new QMP call. That's what e.g libvirt
does:

   
https://gitlab.com/libvirt/libvirt/-/blob/v9.10.0/src/qemu/qemu_monitor_json.c?ref_type=tags#L7367

Parsing the output of HMP info qom-tree is not an option in that case.

Berto