From patchwork Mon Jul 6 23:58:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Berger X-Patchwork-Id: 11647223 X-Patchwork-Delegate: jarkko.sakkinen@linux.intel.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 41AEF14DD for ; Mon, 6 Jul 2020 23:58:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 320AB2082F for ; Mon, 6 Jul 2020 23:58:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727928AbgGFX6P (ORCPT ); Mon, 6 Jul 2020 19:58:15 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:6620 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727046AbgGFX6O (ORCPT ); Mon, 6 Jul 2020 19:58:14 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 066NV87Q030480; Mon, 6 Jul 2020 19:58:10 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 3248dv0bd6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Jul 2020 19:58:10 -0400 Received: from m0098413.ppops.net (m0098413.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 066NdCO1057032; Mon, 6 Jul 2020 19:58:09 -0400 Received: from ppma03wdc.us.ibm.com (ba.79.3fa9.ip4.static.sl-reverse.com [169.63.121.186]) by mx0b-001b2d01.pphosted.com with ESMTP id 3248dv0bcy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Jul 2020 19:58:09 -0400 Received: from pps.filterd (ppma03wdc.us.ibm.com [127.0.0.1]) by ppma03wdc.us.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 066NsjAG026992; Mon, 6 Jul 2020 23:58:08 GMT Received: from b01cxnp22033.gho.pok.ibm.com (b01cxnp22033.gho.pok.ibm.com [9.57.198.23]) by ppma03wdc.us.ibm.com with ESMTP id 322hd8bg67-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Jul 2020 23:58:08 +0000 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 066Nw8u145351224 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Jul 2020 23:58:08 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 68ADDAC066; Mon, 6 Jul 2020 23:58:08 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 638D6AC065; Mon, 6 Jul 2020 23:58:08 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP; Mon, 6 Jul 2020 23:58:08 +0000 (GMT) From: Stefan Berger To: linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, jarkko.sakkinen@linux.intel.com, linux-acpi@vger.kernel.org, linux-security-module@vger.kernel.org Cc: Stefan Berger , Len Brown , "Rafael J . Wysocki" , Jerry Snitselaar Subject: [RESEND,PATCH v9 1/2] acpi: Extend TPM2 ACPI table with missing log fields Date: Mon, 6 Jul 2020 19:58:06 -0400 Message-Id: <20200706235807.3915586-2-stefanb@linux.vnet.ibm.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200706235807.3915586-1-stefanb@linux.vnet.ibm.com> References: <20200706235807.3915586-1-stefanb@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-07-06_20:2020-07-06,2020-07-06 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 cotscore=-2147483648 phishscore=0 adultscore=0 bulkscore=0 malwarescore=0 lowpriorityscore=0 mlxlogscore=999 spamscore=0 mlxscore=0 suspectscore=0 clxscore=1011 priorityscore=1501 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2007060159 Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org From: Stefan Berger Recent extensions of the TPM2 ACPI table added 3 more fields including 12 bytes of start method specific parameters and Log Area Minimum Length (u32) and Log Area Start Address (u64). So, we define a new structure acpi_tpm2_phy that holds these optional new fields. The new fields allow non-UEFI systems to access the TPM2's log. The specification that has the new fields is the following: TCG ACPI Specification Family "1.2" and "2.0" Version 1.2, Revision 8 https://trustedcomputinggroup.org/wp-content/uploads/TCG_ACPIGeneralSpecification_v1.20_r8.pdf Signed-off-by: Stefan Berger Cc: linux-acpi@vger.kernel.org Cc: Len Brown Acked-by: Rafael J. Wysocki Reviewed-by: Jarkko Sakkinen Reviewed-by: Jerry Snitselaar --- include/acpi/actbl3.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h index b0b163b9efc6..bdcac69fa6bd 100644 --- a/include/acpi/actbl3.h +++ b/include/acpi/actbl3.h @@ -415,6 +415,13 @@ struct acpi_table_tpm2 { /* Platform-specific data follows */ }; +/* Optional trailer for revision 4 holding platform-specific data */ +struct acpi_tpm2_phy { + u8 start_method_specific[12]; + u32 log_area_minimum_length; + u64 log_area_start_address; +}; + /* Values for start_method above */ #define ACPI_TPM2_NOT_ALLOWED 0