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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 BFDE0C433E1 for ; Tue, 16 Jun 2020 20:57:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A28442085B for ; Tue, 16 Jun 2020 20:57:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726630AbgFPU5k (ORCPT ); Tue, 16 Jun 2020 16:57:40 -0400 Received: from mga04.intel.com ([192.55.52.120]:61308 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726428AbgFPU5k (ORCPT ); Tue, 16 Jun 2020 16:57:40 -0400 IronPort-SDR: 5gcjQoT+PNDZm1ek3QSQQOZNsAdC99jU8u0KEAd4Lr+Rx8i/VyOVgjA2btv4rEX4I82jZfp6Dc 8aW9wdD9bMXw== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2020 13:57:39 -0700 IronPort-SDR: aGZvAOnGEPGr1XK59sU0e1rUzVAIi2qEubYftAwcjSgOjsPdRMfuaqjAYXdpgUOTMMJltunT/x 50mHfSwTvxmg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,519,1583222400"; d="scan'208";a="277052052" Received: from gosinald-mobl2.ger.corp.intel.com (HELO localhost) ([10.249.36.106]) by orsmga006.jf.intel.com with ESMTP; 16 Jun 2020 13:57:34 -0700 Date: Tue, 16 Jun 2020 23:57:32 +0300 From: Jarkko Sakkinen To: Maxim Uvarov Cc: linux-kernel@vger.kernel.org, tee-dev@lists.linaro.org, peterhuewe@gmx.de, jgg@ziepe.ca, gregkh@linuxfoundation.org, jens.wiklander@linaro.org, linux-integrity@vger.kernel.org, arnd@linaro.org, sumit.garg@linaro.org Subject: Re: [PATCHv8 3/3] tpm_ftpm_tee: register driver on TEE bus Message-ID: <20200616205732.GF20943@linux.intel.com> References: <20200604175851.758-1-maxim.uvarov@linaro.org> <20200604175851.758-4-maxim.uvarov@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200604175851.758-4-maxim.uvarov@linaro.org> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org On Thu, Jun 04, 2020 at 08:58:51PM +0300, Maxim Uvarov wrote: > OP-TEE based fTPM Trusted Application depends on tee-supplicant to > provide NV RAM implementation based on RPMB secure storage. So this > dependency can be resolved via TEE bus where we only invoke fTPM > driver probe once fTPM device is registered on the bus which is only > true after the tee-supplicant is up and running. Additionally, TEE bus > provides auto device enumeration. > > Signed-off-by: Maxim Uvarov > Suggested-by: Sumit Garg > Suggested-by: Arnd Bergmann > Reviewed-by: Sumit Garg Reviewed-by: Jarkko Sakkinen /Jarkko