Re: [Xen-devel] [PATCH][XEN] PV blk backend: Make 32bit PV guests work on 64bit PV Dom0

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 28/7/08 14:00, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:

>>> Quite the opposite. By doing it in your own header files you can specify
>>> the structure names and so on exactly how you would like them to be for the
>>> particular OS concerned.
>> 
>> I'm concerned about having/keeping the API/ABI the same between all OS's and
>> not about their implementation.
> 
> The interfaces (both the API exposed by public/ headers; and the ABI they
> describe) won't change. At least not in a way that isn't backward
> compatible. Or we'd be breaking old OSes all the time!

I might add: why would placing those extra struct definitions in the public
headers make it any more or less likely that we'll break compatibility in
future? That makes no sense to me.

 -- Keir



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