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=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 EB8DDC433DF for ; Mon, 27 Jul 2020 08:20:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C88EC20759 for ; Mon, 27 Jul 2020 08:20:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="VUKFfiR/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726897AbgG0IUl (ORCPT ); Mon, 27 Jul 2020 04:20:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37120 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726270AbgG0IUk (ORCPT ); Mon, 27 Jul 2020 04:20:40 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A53E7C061794; Mon, 27 Jul 2020 01:20:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=xrG0BU7yIGWs9jDgU0K3JJbw4oVcEokGuvUv9xL/Y+0=; b=VUKFfiR/zbbxIyGNnxZj0pzr6Z K/xgwWX+t2geF5XQZh0ZuwnqKTr7OSZ42+Qv8zFCHNzpdJ0wPQlgTab/9NUIvfrAxkSp0mrDpDGCR ji1OvOivtcDDbR/waecBHPT5mHIqLOz9lmROBF6mO0Vp6zC2UsqgVnfiVBqvS+IJBM+/f4o4LYirI 13ylsHczcXzOdEXT9/okYDS8ZxMuOBhqDCLWfLpVC0zrtRPE0jx4+4ytJSwIkzenUInk26c32Y1nf TQbltQTp34CZTwI+Z0TlTeB6VgAys27Kzcvq2UxyQHn6sjUmUqxw2tgEpPEkuCJyUk9p7bFmZ7z2p J9/a3LjQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jzyMg-0002aV-Ht; Mon, 27 Jul 2020 08:20:19 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 8BEE8301EE3; Mon, 27 Jul 2020 10:20:03 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 762FF2BDC8D4F; Mon, 27 Jul 2020 10:20:03 +0200 (CEST) Date: Mon, 27 Jul 2020 10:20:03 +0200 From: peterz@infradead.org To: Ricardo Neri Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Andy Lutomirski , x86@kernel.org, Dave Hansen , Tony Luck , Cathy Zhang , Fenghua Yu , "H. Peter Anvin" , 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: <20200727082003.GD119549@hirez.programming.kicks-ass.net> References: <20200727043132.15082-1-ricardo.neri-calderon@linux.intel.com> <20200727043132.15082-5-ricardo.neri-calderon@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200727043132.15082-5-ricardo.neri-calderon@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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.