>> The property is a public interface. Just because it's not used by
>> libvirt does not mean that nobody is using it. So yes, please follow the
>> rules and mark it as deprecated first for two release, before you really
>> remove it.
>
> I don't see a section for 'Deprecated' properties in the qemu-doc files.
So I added a new one, which gives us :
B.7 Device options
B.7.1 Block device options
B.7.1.1 "backing": "" (since 2.12.0)
B.7.2 vio-spapr-device device options
B.7.2.1 "irq": "" (since 2.13.0)
Cheers,
C.
