From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752624AbbHTUDg (ORCPT ); Thu, 20 Aug 2015 16:03:36 -0400 Received: from www.linutronix.de ([62.245.132.108]:38217 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752107AbbHTUDf (ORCPT ); Thu, 20 Aug 2015 16:03:35 -0400 Date: Thu, 20 Aug 2015 22:02:54 +0200 (CEST) From: Thomas Gleixner To: Tim Chen cc: Borislav Petkov , Dave Hansen , Ingo Molnar , "H. Peter Anvin" , Herbert Xu , Chandramouli Narayanan , x86@kernel.org, linux-kernel@vger.kernel.org, mouli_7982@yahoo.com Subject: Re: [PATCH] sha: Enable cpuid check for Intel SHA extensions implementations In-Reply-To: <1440082994.7611.3.camel@schen9-mobl2> Message-ID: References: <1439844283.21627.5.camel@schen9-desk2.jf.intel.com> <55D24FEA.1000803@intel.com> <1439850820.21627.11.camel@schen9-desk2.jf.intel.com> <1440002998.13451.1.camel@schen9-mobl2> <20150820040818.GA23184@nazgul.tnic> <1440082994.7611.3.camel@schen9-mobl2> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII 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 List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 20 Aug 2015, Tim Chen wrote: > From: Tim Chen > Subject: [PATCH] sha: Enable cpuid check for Intel SHA extensions implementations sha: is not a proper subsystem name x86/cpufeatures: is the correct one > Enable cpuid check for Intel SHA extensions implementations This patch does not enable any checks. It merily adds the feature bit. > The Intel Secure Hash Algorithm Extensions are designed to improve the performance > of SHA-1 and SHA-256. This patch adds the check for X86_FEATURE_SHA_NI bit. Again there is no check. > This will allow the feature to be shown in the /proc/cpuinfo. > > The SHA extension programming guide is found in chapter 8 of the Intel > Architecture Instruction Set Extensions Programming reference: > https://software.intel.com/sites/default/files/managed/07/b7/319433-023.pdf > > Originally-by: Chandramouli Narayanan So Mouli left the company. What's the point of having his Intel mail address here and in the Cc list? Thanks, tglx