From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: [PATCH 4/8] unify paravirt parts of system.h
Date: Mon, 17 Dec 2007 01:58:31 +0100
Message-ID: <200712170158.33914.rjw__22258.4533309147$1197905546$gmane$org@sisk.pl>
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	<200712170127.31615.rjw@sisk.pl> <20071217002306.GD5692@elf.ucw.cz>
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To: Pavel Machek <pavel@ucw.cz>
Cc: ehabkost@redhat.com, linux-kernel@vger.kernel.org, Andi Kleen <ak@suse.de>, chrisw@sous-sol.org, tglx@linutronix.de, anthony@codemonkey.ws, hpa@zytor.com, akpm@linux-foundation.org, Glauber de Oliveira Costa <gcosta@redhat.com>, virtualization@lists.linux-foundation.org, Ingo Molnar <mingo@elte.hu>
List-Id: virtualization@lists.linuxfoundation.org

On Monday, 17 of December 2007, Pavel Machek wrote:
> On Mon 2007-12-17 01:27:29, Rafael J. Wysocki wrote:
> > On Saturday, 15 of December 2007, Ingo Molnar wrote:
> > > 
> > > * Pavel Machek <pavel@ucw.cz> wrote:
> > > 
> > > > > Linux never uses that register. The only user is suspend 
> > > > > save/restore, but that' bogus because it wasn't ever initialized by 
> > > > > Linux in the first place. It could be probably all safely removed.
> > > > 
> > > > It probably is safe to remove... but we currently support '2.8.95 
> > > > kernel loads/resumes 2.6.24 image'... which would break if 2.8 uses 
> > > > cr8.
> > > > 
> > > > So please keep it if it is not a big problem.
> > > 
> > > hm, so __save_processor_state() is in essence an ABI? Could you please 
> > > also send a patch that documents this prominently, in the structure 
> > > itself?
> > 
> > Hmm, I'm not sure if it really is an ABI part.  It doesn't communicate anything
> > outside of the kernel in which it is defined.
> 
> Well, it is not "application binary interface", but it is
> "kernel-to-kernel binary interface"...

Hm, rather a kernel-to-itself interface. ;-)

Rafael