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Fri, 29 May 2020 22:23:18 GMT Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6E9AA6E050; Fri, 29 May 2020 22:23:19 +0000 (GMT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 01B316E04E; Fri, 29 May 2020 22:23:18 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Fri, 29 May 2020 22:23:18 +0000 (GMT) Subject: Re: [PATCH] acpi: tpm: Do not build TCPA table for TPM 2 To: Stefan Berger , qemu-devel@nongnu.org, mst@redhat.com References: <20200529192840.3921141-1-stefanb@linux.vnet.ibm.com> From: Stefan Berger Message-ID: <5df0df78-817d-d80e-648b-c4f733972ff2@linux.ibm.com> Date: Fri, 29 May 2020 18:23:18 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200529192840.3921141-1-stefanb@linux.vnet.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216, 18.0.687 definitions=2020-05-29_10:2020-05-28, 2020-05-29 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 spamscore=0 cotscore=-2147483648 phishscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 adultscore=0 mlxscore=0 clxscore=1015 mlxlogscore=941 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005290155 Received-SPF: pass client-ip=148.163.158.5; envelope-from=stefanb@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/29 15:28:52 X-ACL-Warn: Detected OS = Linux 3.x [generic] X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, KHOP_DYNAMIC=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: eric.auger@redhat.com, marcandre.lureau@gmail.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 5/29/20 3:28 PM, Stefan Berger wrote: > From: Stefan Berger > > Do not build a TCPA table for TPM 2 anymore but create the log area when > building the TPM2 table. The TCPA table is only needed for TPM 1.2. Specs are here: https://trustedcomputinggroup.org/wp-content/uploads/TCG_ACPIGeneralSpecification_v1.20_r8.pdf TCPA is a TPM 1.2 table and TPM2 tables is sufficient for TPM 2.0.