Re: [Qemu-devel] fw cfg files cross-version migration races

[Paolo Bonzini]

On 08/06/2015 13:19, Gerd Hoffmann wrote:
>>> I would simply sort everything (and do it for new machine types only,
>                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>> for backward compatibility reasons).  Sorting user-provided blobs only
>>> adds complexity for no reason.
> 
>> Do we want this for all machine types, or only for new ones?

I think it is not backwards compatible: sorting names changes the fw_cfg
ids of the files, and hence the guest ABI.

Paolo