Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp4391957yba; Wed, 17 Apr 2019 10:27:42 -0700 (PDT) X-Google-Smtp-Source: APXvYqypbWWxExVIgDneGiknVFoU48jx6nxf1wZY9QirgbL7qJsYDibzSHe8e/zZ+tYB4yyGcBVN X-Received: by 2002:a65:6545:: with SMTP id a5mr72574831pgw.264.1555522062090; Wed, 17 Apr 2019 10:27:42 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1555522062; cv=none; d=google.com; s=arc-20160816; b=kbhcgMrGTjRXhFQ9u5xRHXdnglgELsmw5UhZ0Yw6ICYWnrZ22mDj7mO/YY732OJA5a /ShgfviaXRz6l4GNZiSCMQEw4fDr8J3PT2HvmIFg17QRWsJ6bhye/OvEsupVF85MSGnp fcuhfMgJ+9qrcdDzpbfjCewrcRFocVQrKNG62T1EhdAJ4Z589BonbVHnujhUQ/UIknRT AwzWEKhAG1AkCtzVhb3y+c0mvH0OqQ+9IfBJMU9XJeqlMTvVipvEtJphE4P6fl7FUZQ/ 57QFjwvEgwU2KM4k/Msh4Enl/neRNUEHgDJXQTH5X5MbT1+3LIGg+FGP3cQYnpq9ASKF EWfg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=oefqZujA30z4o7uM/+Cm/lpuqknG6U09RqnQclQJtEY=; b=wQSQxHBRwg7f5SlO6EuzMszT5GRXGjsK/COkbmPPYpVOiMyAgyewozR0To2DUU5flG JN3vF/HDzSM95qSILEGqKE1R1LjvYFuijZmPvUdZaSNGLekDkIdoCwSpSJyBp+6J9o+a x6Vpq1vyZCBBzzOXmkz+06LddTGjsQ3g7dtW98QDCDnUnYifU6wUmX+OljFyWgU4t7J2 hJ71A7lcXwWy+YvNJWgGTBf46dNIN0gv6cGQqCBl/rKq2lLNSRw0lDb1UxdY/CRpYkKp 22Phq3RA2AfJokAxKbfxMbWwZeqmVbcsxFBo3US9HTITzt74n45RhvCbUjhpO4lYQcf4 9Flg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=WlCYeDiu; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id b14si2350220pgr.536.2019.04.17.10.27.26; Wed, 17 Apr 2019 10:27:42 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=WlCYeDiu; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732997AbfDQR0b (ORCPT + 99 others); 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-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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