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 phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 16606C64EC4 for ; Fri, 3 Mar 2023 19:26:17 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 884FA85D94; Fri, 3 Mar 2023 20:25:30 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=linux.ibm.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.b="RjQdGX71"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 6ADCB85D8F; Fri, 3 Mar 2023 20:25:26 +0100 (CET) Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id D90AB85D8C for ; Fri, 3 Mar 2023 20:25:23 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=linux.ibm.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=eajames@linux.ibm.com Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 323JIdQL002427; Fri, 3 Mar 2023 19:25:19 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=8Wad9odnYyIdCGKWeAJ2540r/E6SuN+dc7JZeau/mVo=; b=RjQdGX71CJaUXv7j98ErNNZ4vHpfNOWwe8anoRipAcwqIn1nNZOgj6S8jQC0TPfEkc12 XMqxIrJVqHdILfW+Ms0iQlzLUvZMjKsv2aF08+W6hm89iOiQPRBBAFmgnRpOTxB0e4MU zrZKtwwEm8kAiHJItfQiSenAdtUnHmWAqWRu+SOyhaneSJdD6OBU8WnQ0IkoZGpbOcwY w9HE55bzy0AYD44qjYT/Fq4RkXLQuSXIoTaJsF67vRrggc3Y6rckK0Hs9OOf2t2uSaS6 NV5edPYWe3mssHxJXPIZZHllsij61rXXeqOyUtjfgRt6RJ5FhqwGVfoYgKgxMKbq9gSZ hQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3p3pxk03sd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 03 Mar 2023 19:25:18 +0000 Received: from m0098416.ppops.net (m0098416.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 323JKsjn011824; Fri, 3 Mar 2023 19:25:18 GMT Received: from ppma02dal.us.ibm.com (a.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.10]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3p3pxk03s6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 03 Mar 2023 19:25:18 +0000 Received: from pps.filterd (ppma02dal.us.ibm.com [127.0.0.1]) by ppma02dal.us.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 323H0DW6016412; Fri, 3 Mar 2023 19:25:17 GMT Received: from smtprelay03.wdc07v.mail.ibm.com ([9.208.129.113]) by ppma02dal.us.ibm.com (PPS) with ESMTPS id 3nybdmdr2p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 03 Mar 2023 19:25:17 +0000 Received: from smtpav03.wdc07v.mail.ibm.com (smtpav03.wdc07v.mail.ibm.com [10.39.53.230]) by smtprelay03.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 323JPFFE9765494 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 3 Mar 2023 19:25:16 GMT Received: from smtpav03.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E119D58054; Fri, 3 Mar 2023 19:25:15 +0000 (GMT) Received: from smtpav03.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E5A105805F; Fri, 3 Mar 2023 19:25:14 +0000 (GMT) Received: from slate16.aus.stglabs.ibm.com (unknown [9.77.137.234]) by smtpav03.wdc07v.mail.ibm.com (Postfix) with ESMTP; Fri, 3 Mar 2023 19:25:14 +0000 (GMT) From: Eddie James To: u-boot@lists.denx.de Cc: eajames@linux.ibm.com, sjg@chromium.org, ilias.apalodimas@linaro.org, xypron.glpk@gmx.de, joel@jms.id.au Subject: [PATCH v8 6/6] doc: Add measured boot documentation Date: Fri, 3 Mar 2023 13:25:06 -0600 Message-Id: <20230303192506.1368538-7-eajames@linux.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20230303192506.1368538-1-eajames@linux.ibm.com> References: <20230303192506.1368538-1-eajames@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: HHtv83GAFu9lcBB1711cxBeyAXmDJxVv X-Proofpoint-GUID: lkTPF6UTowaGqsBqpd4n3xHWvBiyUZPc X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-03_04,2023-03-03_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 impostorscore=0 mlxscore=0 mlxlogscore=999 clxscore=1015 spamscore=0 suspectscore=0 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2303030162 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.6 at phobos.denx.de X-Virus-Status: Clean Briefly describe the feature and specify the requirements. Signed-off-by: Eddie James Reviewed-by: Simon Glass --- doc/usage/index.rst | 1 + doc/usage/measured_boot.rst | 23 +++++++++++++++++++++++ 2 files changed, 24 insertions(+) create mode 100644 doc/usage/measured_boot.rst diff --git a/doc/usage/index.rst b/doc/usage/index.rst index 840c20c934..1cb6988d8a 100644 --- a/doc/usage/index.rst +++ b/doc/usage/index.rst @@ -12,6 +12,7 @@ Use U-Boot partitions cmdline semihosting + measured_boot Shell commands -------------- diff --git a/doc/usage/measured_boot.rst b/doc/usage/measured_boot.rst new file mode 100644 index 0000000000..8357b1f480 --- /dev/null +++ b/doc/usage/measured_boot.rst @@ -0,0 +1,23 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +Measured Boot +===================== + +U-Boot can perform a measured boot, the process of hashing various components +of the boot process, extending the results in the TPM and logging the +component's measurement in memory for the operating system to consume. + +Requirements +--------------------- + +* A hardware TPM 2.0 supported by the U-Boot drivers +* CONFIG_TPM=y +* CONFIG_MEASURED_BOOT=y +* Device-tree configuration of the TPM device to specify the memory area + for event logging. The TPM device node must either contain a phandle to + a reserved memory region or "linux,sml-base" and "linux,sml-size" + indicating the address and size of the memory region. An example can be + found in arch/sandbox/dts/test.dts +* The operating system must also be configured to use the memory regions + specified in the U-Boot device-tree in order to make use of the event + log. -- 2.31.1