Re: [Xen-devel] RFC: EFER in crash notes

[Keir Fraser <keir@xxxxxxx>]

On 25/09/2012 15:53, "Andrew Cooper" <andrew.cooper3@xxxxxxxxxx> wrote:

>> I suppose the size field in the notes is a sort of rudimentary version
>> field. Remember you can always add a new note type though.
> 
> Yes, although looking through my code, I do raise an error if
> sizeof(note->desc) != sizeof(my structure representing this note), which
> was put in with the best of intentions, but will break with the this RFC
> change.
> 
> On the other hand, adding a new crash note for every new register will
> not scale well, as it is per PCU.
> 
> I guess the only sensible way to continue is to present a formal public ABI.

That seems a good idea.

 -- Keir



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