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 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 676B5C2BA2B for ; Thu, 16 Apr 2020 21:35:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C046206D5 for ; Thu, 16 Apr 2020 21:35:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728097AbgDPVfb (ORCPT ); Thu, 16 Apr 2020 17:35:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47126 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727799AbgDPVfa (ORCPT ); Thu, 16 Apr 2020 17:35:30 -0400 Received: from Galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56A46C061A0C for ; Thu, 16 Apr 2020 14:35:30 -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 1jPCAN-0006v1-Pt; Thu, 16 Apr 2020 23:35:23 +0200 Received: by nanos.tec.linutronix.de (Postfix, from userid 1000) id 04CEB100C51; Thu, 16 Apr 2020 23:35:22 +0200 (CEST) From: Thomas Gleixner To: Tony Luck Cc: Tony Luck , Ingo Molnar , Fenghua Yu , Borislav Petkov , H Peter Anvin , Ashok Raj , Ravi V Shankar , Sean Christopherson , Andy Lutomirski , linux-kernel@vger.kernel.org, x86@kernel.org Subject: Re: [PATCH 0/3] Split lock enumeration cleanup and fixes In-Reply-To: <20200416205754.21177-1-tony.luck@intel.com> References: <20200416205754.21177-1-tony.luck@intel.com> Date: Thu, 16 Apr 2020 23:35:22 +0200 Message-ID: <87k12fm7vp.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 Tony Luck writes: > Need to revisit the sequence of operations when testing for the > split lock detect feature. It is model specific, so we must check > the model number before looking at CORE_CAPABILITIES. > > I marked it all for stable ... some tweaking would be needed if > the X86_MATCH_INTEL stuff from v5.7 doesn't get backported. Why stable? The split lock stuff got merged post 5.6. Thanks, tglx