From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on archive.lwn.net X-Spam-Level: X-Spam-Status: No, score=-6.2 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by archive.lwn.net (Postfix) with ESMTP id 76F7D7D04D for ; Wed, 17 Apr 2019 17:26:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732110AbfDQR0b (ORCPT ); Wed, 17 Apr 2019 13:26:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:39708 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729641AbfDQR0a (ORCPT ); Wed, 17 Apr 2019 13:26:30 -0400 Received: from localhost (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DC931206BA; Wed, 17 Apr 2019 17:26:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555521990; bh=oefqZujA30z4o7uM/+Cm/lpuqknG6U09RqnQclQJtEY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=WlCYeDiukabEvrPaR85qY3M5wrZcG0iP1+8pB/77p+Tz/DzrFg5eBaasX+zRxu0Oh ocnYkKbm3K8d3UsyPi3/nZ6AbcjsjYQFmKLpxULFmctb33XBlhbgu1/7VCVqCQJW8r ZKinNeDF3A546TlZskxwFKG+Xzkkwj39mlaGW2cs= Date: Wed, 17 Apr 2019 13:26:28 -0400 From: Sasha Levin To: "Enrico Weigelt, metux IT consult" Cc: peterhuewe@gmx.de, jarkko.sakkinen@linux.intel.com, jgg@ziepe.ca, corbet@lwn.net, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-integrity@vger.kernel.org, linux-kernel@microsoft.com, thiruan@microsoft.com, bryankel@microsoft.com Subject: Re: [PATCH v3 2/2] ftpm: add documentation for ftpm driver Message-ID: <20190417172628.GF435@sasha-vm> References: <20190415155636.32748-1-sashal@kernel.org> <20190415155636.32748-3-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Wed, Apr 17, 2019 at 02:23:13PM +0200, Enrico Weigelt, metux IT consult wrote: >On 15.04.19 17:56, Sasha Levin wrote: > >Hi, > >> +The driver acts as a thin layer that passes commands to and from a TPM> +implemented in firmware. The driver itself doesn't contain much logic >and is> +used more like a dumb pipe between firmware and kernel/userspace. >Is that TPM already used in production or yet an PoC ? >IOW: can the protocol be changed ? Sadly no, this is based on something that exists for a few years already and we're trying to make Linux run on it. -- Thanks, Sasha