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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25267C43334 for ; Mon, 25 Jul 2022 20:23:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232779AbiGYUXW (ORCPT ); Mon, 25 Jul 2022 16:23:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57666 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229589AbiGYUXT (ORCPT ); Mon, 25 Jul 2022 16:23:19 -0400 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B90C921821 for ; Mon, 25 Jul 2022 13:23:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1658780597; x=1690316597; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=+OyZ1HoUFD/UO5aD8rslmTwO77TClgrMNHoQPXCXrrg=; b=RdkXNw/xqzMkTw3pCk3Yh9pXRqHMxJ8wYVAkbj6khCILvjQ1dTW6Wqr9 wRgG3kxQTuBvyjXJ1fjaQ8dMkPRtBWdF+zPGbqevdgz8AKijsaZuH2xsv 3lB+yaiQMNIVXhyTzJHp5sMa6Z5NYXjcp7XYQsI7CCAEtaobGv1unKeEW viVakPEx+iaw2bj863lNKYhnxcuLzHNRwHtrEZOCUb/ajsz9wSYQ4ZBM0 35EEIqoTQLJ+i2wB+1+fxyIf6Cwd1mi0h5rrbtMGcPPr/Vdj0VO5/z7ma E0jg1BzVwzPMJHVXG2CIrR+q3xRkfdE5J6L5JNJTz5pvhsRogDAKmnDJt A==; X-IronPort-AV: E=McAfee;i="6400,9594,10419"; a="285337299" X-IronPort-AV: E=Sophos;i="5.93,193,1654585200"; d="scan'208";a="285337299" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jul 2022 13:23:17 -0700 X-IronPort-AV: E=Sophos;i="5.93,193,1654585200"; d="scan'208";a="596793837" Received: from spaletti-mobl1.amr.corp.intel.com (HELO [10.212.231.21]) ([10.212.231.21]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jul 2022 13:23:16 -0700 Message-ID: <7c09d15b-40bc-c6a0-3282-a94e9d9c36be@intel.com> Date: Mon, 25 Jul 2022 13:23:15 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v8 5/5] x86/tdx: Add Quote generation support Content-Language: en-US To: "Nakajima, Jun" , Sathyanarayanan Kuppuswamy Cc: Isaku Yamahata , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "x86@kernel.org" , "H . Peter Anvin" , "Kirill A . Shutemov" , "Luck, Tony" , Andi Kleen , "Huang, Kai" , Wander Lairson Costa , "marcelo.cerri@canonical.com" , "tim.gardner@canonical.com" , "khalid.elmously@canonical.com" , "Cox, Philip" , "linux-kernel@vger.kernel.org" References: <20220609025220.2615197-1-sathyanarayanan.kuppuswamy@linux.intel.com> <20220609025220.2615197-6-sathyanarayanan.kuppuswamy@linux.intel.com> <403cfccb-7fff-ab0b-8ebd-e5b04e631571@intel.com> <20220722190524.GA3299911@ls.amr.corp.intel.com> <18578c5a-7a35-ab20-467c-80141b0410a8@intel.com> <4B48A192-8305-4E94-AA0C-10FCE23F424D@intel.com> From: Dave Hansen In-Reply-To: <4B48A192-8305-4E94-AA0C-10FCE23F424D@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/25/22 13:19, Nakajima, Jun wrote: > 3. Need to be available in minimal/early runtime environments, > including pre-boot, e.g. guest BIOS, no user-space yet. Jun, are we talking about the same thing here? This patch is for a guest userspace -> guest kernel ABI. This facility is *FOR* userspace. It can't possibly be used before userspace is running. I'm horribly confused.