Re: [Qemu-devel] [qemu RFC] qapi: add "firmware.json"

[Paolo Bonzini]

On 10/04/2018 11:23, Daniel P. Berrangé wrote:
>> And, really, this seems to reinforce my point that the schema should
>> live in the libvirtd tree, not in the QEMU tree. In that case, perhaps
>> it would be a better fit to work with an XSD, and firmware packages
>> should install XML files? Personally I'm a lot more attracted to
>> XML/XSD; I think the tooling is better too. I just don't see how QEMU is
>> involved.
>
> This is defining a set of metadata that is required to use various firmware
> files in combination with QEMU, along with defining a mapping to QEMU command
> line arguments and/or features. Essentially, while I wish everyone used
> libvirt, libvirt is not the only thing that manages QEMU. This information is
> relevant to anyone managing QEMU, so it doesn't belong in libvirt's realm,
> it is clear QEMU is best placed to declare this information.

QEMU is best placed to _standardize_ how to provide this information
(and where in the file system to place it), but really it's up to
firmware packages to provide it.

We can of course define the schema in QAPI terms for ease of validation
(machine-readable specs are nice to have), but really this should just
be a file in docs/interop/.  No code is needed in QEMU.

Paolo