Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp4693687imu; Tue, 18 Dec 2018 21:25:42 -0800 (PST) X-Google-Smtp-Source: AFSGD/XdGMZLbLCxiCtBqKX9T/y/hORoQkfLmGyAmY7MwGeGNGkWn1K2grt0ho8cwMZ5fvQAsRNN X-Received: by 2002:a17:902:1008:: with SMTP id b8mr18381593pla.252.1545197141955; Tue, 18 Dec 2018 21:25:41 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1545197141; cv=none; d=google.com; s=arc-20160816; b=oy+GYLpckQNzZR7hNMT9lEmkBsPZA51S0gPlAdEBjY+LQCeRXd7gXKBm3Ky3UhZrPr hQHO3Bk2D+7A9GfIPU7jDp1+fQSD+HCxHiHrlVFfVAdEh1Np2pt9LtdQG/ybYRauI2nr RI//MAzCEZ3k8RGyTpriqBoJzWyLuLDx5UkJQfr6mD2/sa54za3M9cDf+YJKixOCZUY8 TD/7Cw6PBPPP7rl0UIfh/SqHr+b3fpmSFqgpFhAuAoFZgzuzLJcYiPqEKU8GQ7be7NCj UGCDAVYEe0KgNIfdOMCreIH0VMcuaol6lKVYKF0iuxLLZ7UVKFmPeirFSYq49MVgUwpk GY6Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:organization:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=BtJxGrglkeCCnv1+Y1yMxERIuArefmTVs9ow9xSIVi4=; b=VfRVtHH/sbc0WmdLevN21rEAi1liEC+nEDPTA85ifjvQbo8dB0tg4p/Zg2CZPQGcwr 3JsU8QbT5HOts/3Siy0ZxXtdpTo+RWRICj0A97it7qq3XzXiO8ppWLYLItjfugrN2Ez6 GR8xv0p3/quvnd5g5Eb+Agyn9jRzQjV830tWZUsJXPwfiFC5kH0lL06NbOGledDyuR/E DnZuFIrQwd1t2kACVwHhTIEdmzZrTgDFgpv5Z0uMxCAA5Vnflj/5CEvEY/agHo85WT4d zVGYCERMArG4wQkohym3VCj5ioC0XDqNiJMV/jjFmgp2bhRmdcxKqjjOd3TKGISh1pjU YFWg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id z128si15494358pgb.372.2018.12.18.21.25.26; Tue, 18 Dec 2018 21:25:41 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727551AbeLSErk (ORCPT + 99 others); Tue, 18 Dec 2018 23:47:40 -0500 Received: from mga12.intel.com ([192.55.52.136]:31446 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727356AbeLSErj (ORCPT ); Tue, 18 Dec 2018 23:47:39 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Dec 2018 20:47:39 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,371,1539673200"; d="scan'208";a="127208466" Received: from cqinghon-mobl2.ccr.corp.intel.com (HELO localhost) ([10.249.254.218]) by fmsmga002.fm.intel.com with ESMTP; 18 Dec 2018 20:47:33 -0800 Date: Wed, 19 Dec 2018 06:47:32 +0200 From: Jarkko Sakkinen To: Sean Christopherson Cc: Andy Lutomirski , Dave Hansen , X86 ML , Platform Driver , linux-sgx@vger.kernel.org, nhorman@redhat.com, npmccallum@redhat.com, "Ayoun, Serge" , shay.katz-zamir@intel.com, Haitao Huang , Andy Shevchenko , Thomas Gleixner , "Svahn, Kai" , mark.shanahan@intel.com, Suresh Siddha , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Darren Hart , Andy Shevchenko , "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" Subject: Re: [PATCH v17 18/23] platform/x86: Intel SGX driver Message-ID: <20181219044732.GB14295@linux.intel.com> References: <20181116010412.23967-19-jarkko.sakkinen@linux.intel.com> <7d5cde02-4649-546b-0f03-2d6414bb80b5@intel.com> <20181217180102.GA12560@linux.intel.com> <20181217183613.GD12491@linux.intel.com> <20181217184333.GA26920@linux.intel.com> <20181217222047.GG12491@linux.intel.com> <20181218154417.GC28326@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181218154417.GC28326@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 Tue, Dec 18, 2018 at 07:44:18AM -0800, Sean Christopherson wrote: > My fd/inode knowledge is lacking, to say the least. Whatever works, so > long as we have a way to uniquely identify enclaves. I will simply trial and error :-) I think it should work since it does own an address space, but yeah, testing will tell. We can go also with anon inode if required. /Jarkko