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=-5.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 72D84C433E0 for ; Tue, 28 Jul 2020 00:55:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 54CD220809 for ; Tue, 28 Jul 2020 00:55:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726222AbgG1Azz (ORCPT ); Mon, 27 Jul 2020 20:55:55 -0400 Received: from mga03.intel.com ([134.134.136.65]:9773 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726139AbgG1Azy (ORCPT ); Mon, 27 Jul 2020 20:55:54 -0400 IronPort-SDR: h5p0olUpGF9ooLhzNfQfIDrrrgTNdKsHyz7GB6QZJRvM30z2WzCLdHZJPh3YA7QqY7p7GPLcm1 i2z3Ztf14Lmg== X-IronPort-AV: E=McAfee;i="6000,8403,9695"; a="151116580" X-IronPort-AV: E=Sophos;i="5.75,404,1589266800"; d="scan'208";a="151116580" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jul 2020 17:55:53 -0700 IronPort-SDR: kffFnXfuJa226G3x+5zKZm7o0hRAail1hqbvUI0+Kzhm5u/CfXd0H4FgT0FvUsj/Of0ROKJhVP wVLS52a/mL6A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,404,1589266800"; d="scan'208";a="272157472" Received: from ranerica-svr.sc.intel.com ([172.25.110.23]) by fmsmga007.fm.intel.com with ESMTP; 27 Jul 2020 17:55:52 -0700 Date: Mon, 27 Jul 2020 17:55:32 -0700 From: Ricardo Neri To: hpa@zytor.com Cc: peterz@infradead.org, Thomas Gleixner , Ingo Molnar , Borislav Petkov , Andy Lutomirski , x86@kernel.org, Dave Hansen , Tony Luck , Cathy Zhang , Fenghua Yu , Kyung Min Park , "Ravi V. Shankar" , Sean Christopherson , linux-kernel@vger.kernel.org, Ricardo Neri , Dave Hansen , linux-edac@vger.kernel.org Subject: Re: [PATCH 4/4] x86/cpu: Use SERIALIZE in sync_core() when available Message-ID: <20200728005532.GC23421@ranerica-svr.sc.intel.com> References: <20200727043132.15082-1-ricardo.neri-calderon@linux.intel.com> <20200727043132.15082-5-ricardo.neri-calderon@linux.intel.com> <20200727082003.GD119549@hirez.programming.kicks-ass.net> <2A0D15F3-BAF2-47CE-AF5F-DB681793D07D@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2A0D15F3-BAF2-47CE-AF5F-DB681793D07D@zytor.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-edac-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-edac@vger.kernel.org On Mon, Jul 27, 2020 at 05:47:32AM -0700, hpa@zytor.com wrote: > On July 27, 2020 1:20:03 AM PDT, peterz@infradead.org wrote: > >On Sun, Jul 26, 2020 at 09:31:32PM -0700, Ricardo Neri wrote: > >> +static inline void serialize(void) > >> +{ > >> + asm volatile(".byte 0xf, 0x1, 0xe8"); > >> +} > > > >Can we pretty please have a comment with the binutils version that has > >the mnomic? Such that when we increase the required binutils version we > >can grep for this. > > It also needs : : : "memory" to be a barrier. Sure Peter, I will make this change. Thanks and BR, Ricardo