Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp3013883imu; Mon, 19 Nov 2018 09:21:44 -0800 (PST) X-Google-Smtp-Source: AFSGD/XazRex4mF1yms6E7MWDqg6ORf/ZaiSb06aTSvcETvBq9hQlAl1NM1LKwfhCggJtxeGVVwP X-Received: by 2002:a17:902:be0e:: with SMTP id r14-v6mr12931503pls.23.1542648104475; Mon, 19 Nov 2018 09:21:44 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1542648104; cv=none; d=google.com; s=arc-20160816; b=kGU5n3z9TdV86cDeRkXX4KFh21JEQ4VnEkSSMNzYWc1ZOJJmnJNDNnvkKdwOpDtTGp 0zukO1hZ69rvIGMUvc6moKO7LzLD9krHyegyhAi7VTCkiJ5gmQ2ru0faf2TtyyBwk2kR kxHmhe35GAb3onqvXPZQyDxfGyEUb/ncaZMztjiDZVHMPTBxqXtM6aFzofxfgEc+OpPy rE+9kPXXsr4ZgE2NV1QFjdTHHkpby/RP3FoponYGrNkyErY1bOzwVcB8zi/ZOwaYpACc KDqjSo/6q/7JsJUtDBvp2UEVV4/DC36z/PpD/G/XIvD5xLa00GTAT1YTfYwxpa5fPe30 TVfw== 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=vPzPXqAEaBEVxILgCnjb1/pUKMB6Q4BheiMWGdbgcxk=; b=wXlsp8tlgWAXUc+pNcNgDdHMGj3ftsxW8K0f12aL0aC3pYBw/g/gNXAK6OZzG+BTKi UpiRuSp3oPu+cakYHtWGY0iioCemIfTqcdT42MNh6bKHDc1BqB6jTQSwzp6Rl7lKc+1B WOrxP9t4i4cl3vSPiVgtF8EzUDhQBSg9MN9owijgHWVIl89tznOWh36MaYirseQHHp2S ELzZkRh74x2sCxW9wQvvsnglMcMOryc3qNzpje88tpxmZAXN/+zVe9fhqnFtXXA9UxdO FPx4c40uXFvbJXeDm0vPD5rZOiXYfAEWagHJtsWgm/H3zM519zPSUXJhQFFxFYhzk7yk 7ntA== 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 u22si38840004pgk.335.2018.11.19.09.21.20; Mon, 19 Nov 2018 09:21:44 -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 S2405747AbeKTDoE (ORCPT + 99 others); Mon, 19 Nov 2018 22:44:04 -0500 Received: from mga04.intel.com ([192.55.52.120]:34498 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405427AbeKTDoD (ORCPT ); Mon, 19 Nov 2018 22:44:03 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Nov 2018 09:19:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,253,1539673200"; d="scan'208";a="109821873" Received: from tmuluk-mobl4.ger.corp.intel.com (HELO localhost) ([10.249.254.135]) by orsmga002.jf.intel.com with ESMTP; 19 Nov 2018 09:19:34 -0800 Date: Mon, 19 Nov 2018 19:19:34 +0200 From: Jarkko Sakkinen To: Jethro Beekman Cc: "x86@kernel.org" , "platform-driver-x86@vger.kernel.org" , "linux-sgx@vger.kernel.org" , "dave.hansen@intel.com" , "sean.j.christopherson@intel.com" , "nhorman@redhat.com" , "npmccallum@redhat.com" , "serge.ayoun@intel.com" , "shay.katz-zamir@intel.com" , "haitao.huang@linux.intel.com" , "andriy.shevchenko@linux.intel.com" , "tglx@linutronix.de" , "kai.svahn@intel.com" , "mark.shanahan@intel.com" , "luto@amacapital.net" , 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: <20181119171934.GA16252@linux.intel.com> References: <20181116010412.23967-1-jarkko.sakkinen@linux.intel.com> <20181116010412.23967-19-jarkko.sakkinen@linux.intel.com> <20181119150655.GA11843@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 Mon, Nov 19, 2018 at 04:22:54PM +0000, Jethro Beekman wrote: > On 2018-11-19 20:36, Jarkko Sakkinen wrote: > > Question: should be dissolve the driver completely and move this code to > > arch/x86/kernel/cpu/sgx/ (and rename intel_sgx.c as main.c)? Swapping > > patch removes the possibility to compile this as a module anyway. > > No. We should keep the capability to build this as a module for other users > of SGX. What is the swapping patch and why doesn't allow building as a > module? In some earlier version of the patch set the request was to remove the callback interface to the driver so now core does direct calls to the swapping operations. /Jarkko