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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 C834CC433ED for ; Wed, 19 May 2021 19:13:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AC5C16108D for ; Wed, 19 May 2021 19:13:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231131AbhESTOs (ORCPT ); Wed, 19 May 2021 15:14:48 -0400 Received: from mga12.intel.com ([192.55.52.136]:33088 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230499AbhESTOq (ORCPT ); Wed, 19 May 2021 15:14:46 -0400 IronPort-SDR: OZy/X+vYvYjAtEW80DIRDK0pHUi9o82PRb+I1HIuJ5mTGFndpQJaSyVBTCEgRBTbK8pl/7awZe /KrHe73TZhMg== X-IronPort-AV: E=McAfee;i="6200,9189,9989"; a="180659959" X-IronPort-AV: E=Sophos;i="5.82,313,1613462400"; d="scan'208";a="180659959" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 May 2021 12:13:15 -0700 IronPort-SDR: Ae8dI07kVOsRIiZ4vXjpax5QkYTX/uekLWZMhn+5AOM+9TRVqtUhH5PIYMFGmAbT0BgCnxHDLy WF0DVJJhx7bQ== X-IronPort-AV: E=Sophos;i="5.82,313,1613462400"; d="scan'208";a="411861113" Received: from ccheung-mobl.amr.corp.intel.com (HELO skuppusw-mobl5.amr.corp.intel.com) ([10.212.97.108]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 May 2021 12:13:14 -0700 Subject: Re: [RFC v2-fix-v1 1/1] x86/tdx: Add __tdx_module_call() and __tdx_hypercall() helper functions To: Dave Hansen , Peter Zijlstra , Andy Lutomirski Cc: Tony Luck , Andi Kleen , Kirill Shutemov , Kuppuswamy Sathyanarayanan , Dan Williams , Raj Ashok , Sean Christopherson , linux-kernel@vger.kernel.org References: <3a7c0bba-cc43-e4ba-f7fe-43c8627c2fc2@intel.com> <20210519055842.2048957-1-sathyanarayanan.kuppuswamy@linux.intel.com> <568d2929-f366-e3be-96f9-0bfa91991ef2@intel.com> From: "Kuppuswamy, Sathyanarayanan" Message-ID: <02e7b229-4b6f-c1c7-bb63-48e5e9eca5db@linux.intel.com> Date: Wed, 19 May 2021 12:13:11 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <568d2929-f366-e3be-96f9-0bfa91991ef2@intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/19/21 8:31 AM, Dave Hansen wrote: > Was this "older compiler" argument really the reason? It is a speculation. I haven't tried to reproduce it with old compiler. So I have removed that point. -- Sathyanarayanan Kuppuswamy Linux Kernel Developer