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Tue, 18 Feb 2025 18:55:12 GMT Received: from smtprelay04.wdc07v.mail.ibm.com ([172.16.1.71]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 44v9mmnmpp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 18 Feb 2025 18:55:12 +0000 Received: from smtpav06.dal12v.mail.ibm.com (smtpav06.dal12v.mail.ibm.com [10.241.53.105]) by smtprelay04.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 51IItCXc38601226 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 18 Feb 2025 18:55:12 GMT Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 402265805E; Tue, 18 Feb 2025 18:55:12 +0000 (GMT) Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2C82858043; Tue, 18 Feb 2025 18:55:09 +0000 (GMT) Received: from [9.47.158.152] (unknown [9.47.158.152]) by smtpav06.dal12v.mail.ibm.com (Postfix) with ESMTP; Tue, 18 Feb 2025 18:55:09 +0000 (GMT) Message-ID: Date: Tue, 18 Feb 2025 13:55:08 -0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v9 0/3] TPM TIS SPI Support To: dan tan Cc: dan tan , qemu-devel@nongnu.org, qemu-ppc@nongnu.org, stefanb@linux.vnet.ibm.com, pbonzini@redhat.com, farosas@suse.de, lvivier@redhat.com References: <20250216221155.30013-1-dantan@linux.vnet.ibm.com> <413fd61d-a30d-4061-bc71-d0efe92e625f@linux.ibm.com> <3a63ef12967ef52ca18d1ca140c283cb@linux.ibm.com> Content-Language: en-US From: Stefan Berger In-Reply-To: <3a63ef12967ef52ca18d1ca140c283cb@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Wp4Dwlu5U28GOjHk-F-dU_h-q1BHF11S X-Proofpoint-ORIG-GUID: Wp4Dwlu5U28GOjHk-F-dU_h-q1BHF11S X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-18_09,2025-02-18_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 spamscore=0 phishscore=0 impostorscore=0 suspectscore=0 bulkscore=0 lowpriorityscore=0 mlxlogscore=999 malwarescore=0 mlxscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502180129 Received-SPF: pass client-ip=148.163.156.1; envelope-from=stefanb@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 2/17/25 3:24 PM, dan tan wrote: > Stefan, > > I have yet found a ppc64le Linux distro that has SPI enabled in the > kernel. Attempts to build my own was not successful either. I am trying > to get the LTC (Linux Technology Center) involved. They have more > expertise in building the ppc64le kernel. I am hoping to get that tested > soon. I'll wait for this then. Once it works it may be worth to try an experiment with the last remaining wait state and see whether also that one can be removed. I am not sure whether we should have it since it only negatively affects performance and it is also part of the device's state, so it would not be so easy to remove once we have it. > > thank you, > --- > dan tan > power simulation > phone:+1.7373.099.138 > email:dantan@linux.ibm.com > > > On 2025-02-17 14:12, Stefan Berger wrote: >> On 2/16/25 5:11 PM, dan tan wrote: >>> *** BLURB HERE *** >>> >>> Version 9 summary: >>>      1/3 tpm/tpm_tis_spi: Support TPM for SPI >>>          - rebased with the master, and conform with the latest >>>            device property definition >>>      3/3 tests/qtest/tpm: add unit test to tis-spi >>>          - remove unnecessary tpm-tis-spi qtest start parameters >> >> Were you able to test it with Linux now?