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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable 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 264AAC43441 for ; Wed, 28 Nov 2018 05:08:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E9FB020832 for ; Wed, 28 Nov 2018 05:08:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E9FB020832 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727486AbeK1QIp (ORCPT ); Wed, 28 Nov 2018 11:08:45 -0500 Received: from mga06.intel.com ([134.134.136.31]:57779 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726894AbeK1QIp (ORCPT ); Wed, 28 Nov 2018 11:08:45 -0500 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Nov 2018 21:08:25 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,289,1539673200"; d="scan'208";a="286893573" Received: from djustese-mobl1.ger.corp.intel.com (HELO localhost) ([10.249.254.168]) by fmsmga005.fm.intel.com with ESMTP; 27 Nov 2018 21:08:15 -0800 Date: Tue, 27 Nov 2018 21:08:14 -0800 From: Jarkko Sakkinen To: "Dr. Greg" Cc: Andy Lutomirski , X86 ML , Platform Driver , linux-sgx@vger.kernel.org, Dave Hansen , "Christopherson, Sean J" , nhorman@redhat.com, npmccallum@redhat.com, "Ayoun, Serge" , shay.katz-zamir@intel.com, haitao.huang@linux.intel.com, Andy Shevchenko , Thomas Gleixner , "Svahn, Kai" , mark.shanahan@intel.com, Suresh Siddha , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Darren Hart , Andy Shevchenko , LKML Subject: Re: [PATCH v17 18/23] platform/x86: Intel SGX driver Message-ID: <20181128050814.GA8842@linux.intel.com> References: <20181116010412.23967-1-jarkko.sakkinen@linux.intel.com> <20181116010412.23967-19-jarkko.sakkinen@linux.intel.com> <20181119161917.GF13298@linux.intel.com> <20181120120442.GA22172@linux.intel.com> <20181122111253.GA31150@wind.enjellic.com> <20181123103923.GA13851@wind.enjellic.com> <20181124164534.GC30310@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181124164534.GC30310@linux.intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Nov 24, 2018 at 08:45:34AM -0800, Jarkko Sakkinen wrote: > On Fri, Nov 23, 2018 at 04:39:23AM -0600, Dr. Greg wrote: > > Jarkko, when this driver lands it will set the SGX ABI in stone for > > Linux. It would be very, very helpful to the development community if > > there was some official guidance from Intel on whether or not FLC will > > be a universal feature on all hardware and the date that is going to > > happen or has happened. > > I seriously don't know but I can take this message to the mothership... LC enabling is essentially a platform vendors choice, not Intels choice, like many other CPU features that Linux is dependent on. Of course, if Linux ends supporting only LC that will without doubt have a big impact on vendors so in that way it is indirectly also communitys choice. /Jarkko