From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F7A6C433DF for ; Wed, 20 May 2020 15:08:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5DED72054F for ; Wed, 20 May 2020 15:08:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726932AbgETPIV (ORCPT ); Wed, 20 May 2020 11:08:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726510AbgETPIV (ORCPT ); Wed, 20 May 2020 11:08:21 -0400 Received: from Galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 00D5FC061A0E for ; Wed, 20 May 2020 08:08:21 -0700 (PDT) Received: from p5de0bf0b.dip0.t-ipconnect.de ([93.224.191.11] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1jbQJx-0003qg-SS; Wed, 20 May 2020 17:07:50 +0200 Received: by nanos.tec.linutronix.de (Postfix, from userid 1000) id 4642B100C99; Wed, 20 May 2020 17:07:49 +0200 (CEST) From: Thomas Gleixner To: Andy Lutomirski Cc: LKML , X86 ML , "Paul E. McKenney" , Andy Lutomirski , Alexandre Chartre , Frederic Weisbecker , Paolo Bonzini , Sean Christopherson , Masami Hiramatsu , Petr Mladek , Steven Rostedt , Joel Fernandes , Boris Ostrovsky , Juergen Gross , Brian Gerst , Mathieu Desnoyers , Josh Poimboeuf , Will Deacon , Tom Lendacky , Wei Liu , Michael Kelley , Jason Chen CJ , Zhao Yakui , "Peter Zijlstra \(Intel\)" Subject: Re: [patch V6 23/37] x86/entry: Provide IDTENTRY_SYSVEC In-Reply-To: References: <20200515234547.710474468@linutronix.de> <20200515235126.724725645@linutronix.de> Date: Wed, 20 May 2020 17:07:49 +0200 Message-ID: <87sgfu4pbu.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andy Lutomirski writes: > On Fri, May 15, 2020 at 5:10 PM Thomas Gleixner wrote: >> >> >> Provide a IDTENTRY variant for system vectors to consolidate the different >> mechanisms to emit the ASM stubs for 32 an 64 bit. >> >> On 64bit this also moves the stack switching from ASM to C code. 32bit will >> excute the system vectors w/o stack switching as before. As some of the >> system vector handlers require access to pt_regs this requires a new stack >> switching macro which can handle an argument. > > Is that last sentence obsolete? Yes. > Otherwise, > > Acked-by: Andy Lutomirski