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


  • To: Christoph Egger <Christoph.Egger@xxxxxxx>
  • From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • Date: Mon, 28 Jul 2008 14:00:35 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Mon, 28 Jul 2008 06:01:05 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcjwseyiK1ZlJFylEd2NDAAX8io7RQ==
  • Thread-topic: [Xen-devel] [PATCH][XEN] PV blk backend: Make 32bit PV guests work on 64bit PV Dom0

On 28/7/08 13:52, "Christoph Egger" <Christoph.Egger@xxxxxxx> 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!

 -- Keir



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