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From: Ingo Molnar <mingo@elte.hu>
To: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
	ehabkost@redhat.com, linux-kernel@vger.kernel.org,
	Andi Kleen <ak@suse.de>,
	chrisw@sous-sol.org, anthony@codemonkey.ws, hpa@zytor.com,
	akpm@linux-foundation.org,
	Glauber de Oliveira Costa <gcosta@redhat.com>,
	virtualization@lists.linux-foundation.org, tglx@linutronix.de
Subject: Re: [PATCH 4/8] unify paravirt parts of system.h
Date: Sat, 15 Dec 2007 14:17:23 +0100	[thread overview]
Message-ID: <20071215131723.GF9720__22486.2657407813$1197724796$gmane$org@elte.hu> (raw)
In-Reply-To: <20071205163017.GA4756@ucw.cz>


* 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?

	Ingo

  reply	other threads:[~2007-12-15 13:17 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-04 16:06 [PATCH 0/8] Integrate system.h Glauber de Oliveira Costa
2007-12-04 16:06 ` Glauber de Oliveira Costa
2007-12-04 16:06 ` [PATCH 1/8] remove volatile keyword from clflush Glauber de Oliveira Costa
2007-12-04 16:06   ` Glauber de Oliveira Costa
2007-12-04 16:06   ` [PATCH 2/8] put together equal pieces of system.h Glauber de Oliveira Costa
2007-12-04 16:06     ` Glauber de Oliveira Costa
2007-12-04 16:06     ` [PATCH 3/8] unify load_segment macro Glauber de Oliveira Costa
2007-12-04 16:06       ` Glauber de Oliveira Costa
2007-12-04 16:06       ` [PATCH 4/8] unify paravirt parts of system.h Glauber de Oliveira Costa
2007-12-04 16:06         ` Glauber de Oliveira Costa
2007-12-04 16:06         ` [PATCH 5/8] remove unused macro Glauber de Oliveira Costa
2007-12-04 16:06           ` Glauber de Oliveira Costa
2007-12-04 16:06           ` [PATCH 6/8] unify smp parts of system.h Glauber de Oliveira Costa
2007-12-04 16:06             ` Glauber de Oliveira Costa
2007-12-04 16:06             ` [PATCH 7/8] move switch_to macro to system.h Glauber de Oliveira Costa
2007-12-04 16:06               ` Glauber de Oliveira Costa
2007-12-04 16:06               ` [PATCH 8/8] unify system.h Glauber de Oliveira Costa
2007-12-04 16:06                 ` Glauber de Oliveira Costa
2007-12-04 19:18         ` [PATCH 4/8] unify paravirt parts of system.h Avi Kivity
2007-12-04 19:18         ` Avi Kivity
2007-12-04 19:34           ` Andi Kleen
2007-12-04 19:34           ` Andi Kleen
2007-12-05 16:30             ` Pavel Machek
2007-12-05 16:30             ` Pavel Machek
2007-12-15 13:17               ` Ingo Molnar [this message]
2007-12-15 13:17               ` Ingo Molnar
2007-12-17  0:27                 ` Rafael J. Wysocki
2007-12-17  0:23                   ` Pavel Machek
2007-12-17  0:23                   ` Pavel Machek
2007-12-17  0:58                     ` Rafael J. Wysocki
2007-12-17  0:58                     ` Rafael J. Wysocki
2007-12-17  0:27                 ` Rafael J. Wysocki
2007-12-15 13:26               ` Andi Kleen
2007-12-15 13:26               ` Andi Kleen
2007-12-15 22:54                 ` Pavel Machek
2007-12-15 22:54                 ` Pavel Machek
2007-12-15 20:28               ` H. Peter Anvin
2007-12-15 20:28               ` H. Peter Anvin
2007-12-04 19:41           ` Glauber de Oliveira Costa
2007-12-04 19:41           ` Glauber de Oliveira Costa
2007-12-04 22:14             ` Denys Vlasenko
2007-12-04 22:14             ` Denys Vlasenko

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