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=-10.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable 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 63FCAC10F0B for ; Wed, 3 Apr 2019 18:18:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 17AEF20700 for ; Wed, 3 Apr 2019 18:18:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726685AbfDCSSe (ORCPT ); Wed, 3 Apr 2019 14:18:34 -0400 Received: from mga01.intel.com ([192.55.52.88]:7393 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726144AbfDCSSd (ORCPT ); Wed, 3 Apr 2019 14:18:33 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Apr 2019 11:18:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,305,1549958400"; d="scan'208";a="131198217" Received: from oakcakay-mobl2.ger.corp.intel.com (HELO localhost) ([10.249.254.144]) by orsmga008.jf.intel.com with ESMTP; 03 Apr 2019 11:18:28 -0700 Date: Wed, 3 Apr 2019 21:18:27 +0300 From: Jarkko Sakkinen To: Sasha Levin Cc: robh+dt@kernel.org, mark.rutland@arm.com, peterhuewe@gmx.de, jgg@ziepe.ca, linux-kernel@microsoft.com, bryankel@microsoft.com, thiruan@microsoft.com, suredd@microsoft.com, arnd@arndb.de, gregkh@linuxfoundation.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org Subject: Re: [PATCH 2/2] ftpm: firmware TPM running in TEE Message-ID: <20190403181827.GB17006@linux.intel.com> References: <20190402193316.15144-1-sashal@kernel.org> <20190402193316.15144-2-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190402193316.15144-2-sashal@kernel.org> 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, Apr 02, 2019 at 03:33:16PM -0400, Sasha Levin wrote: > This patch adds support for a software-only implementation of a TPM > running in TEE. > > There is extensive documentation of the design here: > https://www.microsoft.com/en-us/research/publication/ftpm-software-implementation-tpm-chip/ . > > As well as reference code for the firmware available here: > https://github.com/Microsoft/ms-tpm-20-ref/tree/master/Samples/ARM32-FirmwareTPM > > Signed-off-by: Thirupathaiah Annapureddy > Signed-off-by: Sasha Levin What is the context anyway? I mean tpm_crb already supports fTPM running in TZ. /Jarkko