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 29710EE8016 for ; Fri, 8 Sep 2023 15:20:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244488AbjIHPUD (ORCPT ); Fri, 8 Sep 2023 11:20:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34538 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234324AbjIHPUB (ORCPT ); Fri, 8 Sep 2023 11:20:01 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B4501BFF; Fri, 8 Sep 2023 08:19:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694186398; x=1725722398; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=Om6CjFzh5dLipu2fLEo63swa2QFjMY5gRRlLIokstrk=; b=cMVNLhU5uvB7Wcv2BPC6rEWT5u2QaweWq/nfNchJyQ/fs3b1PiE5iuF1 wugjwVvR7gZdSuteoZNudkrn4SbcucBGXK4ewkViTyihZSPXIx163e5iL i3PqO4d/LeiOp/wHwDREb/f16f4cRfn+XcmdJMi8edc6UMjQUxgSEFXtj 0SZmn+CCW4TTUFsyudTJyL4tmVub3YuBDuVdAfUphbnVmG4TCZfB53if9 9NaEDnlNu3OstUPqDPiVI2wc/DrIj+Waqw0u2A08NMI716w05e1Ib4WHP 6HTYdmkIpNTomBwAC2DWL8nX4RO6G2Azid4Xkc7gjoZgKrhkKAmuRE+ly w==; X-IronPort-AV: E=McAfee;i="6600,9927,10827"; a="464043949" X-IronPort-AV: E=Sophos;i="6.02,237,1688454000"; d="scan'208";a="464043949" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Sep 2023 08:19:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10827"; a="989293235" X-IronPort-AV: E=Sophos;i="6.02,237,1688454000"; d="scan'208";a="989293235" Received: from fgilganx-mobl1.amr.corp.intel.com (HELO [10.209.17.195]) ([10.209.17.195]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Sep 2023 08:19:56 -0700 Message-ID: <95e9f2f8-d714-2f9e-6bbe-56c51b9125b6@intel.com> Date: Fri, 8 Sep 2023 08:19:55 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.0 Subject: Re: [PATCH v13 01/22] x86/virt/tdx: Detect TDX during kernel boot Content-Language: en-US To: Kai Huang , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: x86@kernel.org, kirill.shutemov@linux.intel.com, tony.luck@intel.com, peterz@infradead.org, tglx@linutronix.de, bp@alien8.de, mingo@redhat.com, hpa@zytor.com, seanjc@google.com, pbonzini@redhat.com, david@redhat.com, dan.j.williams@intel.com, rafael.j.wysocki@intel.com, ashok.raj@intel.com, reinette.chatre@intel.com, len.brown@intel.com, ak@linux.intel.com, isaku.yamahata@intel.com, ying.huang@intel.com, chao.gao@intel.com, sathyanarayanan.kuppuswamy@linux.intel.com, nik.borisov@suse.com, bagasdotme@gmail.com, sagis@google.com, imammedo@redhat.com References: <7329a23e94e10e222fce6ef4685c429b9377cad6.1692962263.git.kai.huang@intel.com> From: Dave Hansen In-Reply-To: <7329a23e94e10e222fce6ef4685c429b9377cad6.1692962263.git.kai.huang@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 8/25/23 05:14, Kai Huang wrote: > Intel Trust Domain Extensions (TDX) protects guest VMs from malicious > host and certain physical attacks. A CPU-attested software module > called 'the TDX module' runs inside a new isolated memory range as a > trusted hypervisor to manage and run protected VMs. ... Reviewed-by: Dave Hansen