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 34C59C43610 for ; Wed, 28 Nov 2018 19:22:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E37C9206B6 for ; Wed, 28 Nov 2018 19:22:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E37C9206B6 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 S1729011AbeK2GZM (ORCPT ); Thu, 29 Nov 2018 01:25:12 -0500 Received: from mga07.intel.com ([134.134.136.100]:8689 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725772AbeK2GZM (ORCPT ); Thu, 29 Nov 2018 01:25:12 -0500 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Nov 2018 11:22:29 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,291,1539673200"; d="scan'208";a="288293706" Received: from jsakkine-mobl1.jf.intel.com (HELO localhost) ([10.24.8.96]) by fmsmga006.fm.intel.com with ESMTP; 28 Nov 2018 11:22:29 -0800 Date: Wed, 28 Nov 2018 11:22:28 -0800 From: Jarkko Sakkinen To: "Dr. Greg" Cc: Andy Lutomirski , 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: <20181128192228.GC9023@linux.intel.com> References: <20181124172114.GB32210@linux.intel.com> <20181125145329.GA5777@linux.intel.com> <0669C300-02CB-4EA6-BF88-5C4B4DDAD4C7@amacapital.net> <20181126215145.GC868@linux.intel.com> <20181126230436.GA6737@linux.intel.com> <20181127085533.GA12247@wind.enjellic.com> <20181127164129.GB4170@linux.intel.com> <20181128104941.GA23077@wind.enjellic.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181128104941.GA23077@wind.enjellic.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 Wed, Nov 28, 2018 at 04:49:41AM -0600, Dr. Greg wrote: > We've been carrying a patch, that drops in on top of the proposed > kernel driver, that implements the needed policy management framework > for DAC fragile (FLC) platforms. After a meeting yesterday with the > client that is funding the work, a decision was made to release the > enhancements when the SGX driver goes mainline. That will at least > give developers the option of creating solutions on Linux that > implement the security guarantees that SGX was designed to deliver. We do not need yet another policy management framework to the *kernel*. The token based approach that Andy is proposing is proven and well established method to create a mechanism. You can then create a daemon to user space that decides who it wants to send tokes. /Jarkko