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Sun, 18 Oct 2026 23:15:53 -0700 (PDT) X-Received: by 2002:a05:7301:4b0e:b0:360:ca2f:ce6f with SMTP id 5a478bee46e88-3619ea236b5mr9259784eec.1.1792390553247; Sun, 18 Oct 2026 23:15:53 -0700 (PDT) Received: from [10.218.31.125] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3607bc950f9sm32590185eec.0.2026.10.18.23.15.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 18 Oct 2026 23:15:52 -0700 (PDT) Message-ID: Date: Mon, 19 Oct 2026 11:45:47 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 0/3] Add TPM support via Qualcomm TEE TPM TA To: Jarkko Sakkinen Cc: Amirreza Zarrabi , Jens Wiklander , Sumit Garg , Peter Huewe , Jason Gunthorpe , linux-arm-msm@vger.kernel.org, op-tee@lists.trustedfirmware.org, linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org References: <20261015-tpm_qcom_driver-v3-0-247c8e50250e@qti.qualcomm.com> Content-Language: en-US From: Kuldeep Singh In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDE5MDAyNCBTYWx0ZWRfXy8B6zLaOGRtX zJ2vYV5sDRh3ETnI57xKcXTvyIVCmZud23GDLoE9sHTAnuZHdF0dggSIupoDtm6bYmjZgDI/Bgf dqZB2u2AZcXzHS4Euc0s4hlSRSbpE9kFOO/7sud/3hZMMGYUlkpjO4enZ3btNNwxDI4aQb7HoNm UJ58FQnNDtJ6PZyPNdwq0AQ7sGl6RfGeLwtpqWDDtifqeZqQkYwsEGRcCuH7kLIg9rXY/zGW5bg S1UOzB7AufCK7B0Z4Khl1ErEW81JoovL8O5E8MM64psFhemuwZFEOaQKYIrNYJ4kS4CpjkNF1Ti AVNGfLLm9Bd7EbYyRmRwvkb/8/7+XJNXiXqrN5+q85uYZ4NORwuv3w4hpFS21Agqbzc9o6xcP9d lCeNRytF8dtgDYivrinckb6k7sMWZyBgmqbqqc5ROlfMK/EmjB3WX5cwR/TzNdTwTwGc/cRyarY ZlHU2gy3xEJ7ifUVI/g== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDE5MDAyNCBTYWx0ZWRfXxklUBuTofinM yX+4ElmyinAVPk+5qHcdt//ODhzwpPBRpk8ni5ehuYZoptgzigqX+b1IQq11dqJVdWgvCDrljzz p1BApSJ+sPnuCqI/okwe+2bcZfMXsYw= X-Proofpoint-GUID: QNJ0yd5Vamf0-3vW0sj_rcoC3RVEtxkT X-Authority-Analysis: v=2.4 cv=K/+3jCWI c=1 sm=1 tr=0 ts=6ad5b59b cx=c_pps a=Uww141gWH0fZj/3QKPojxA==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=VeEq6VHES1BVyvH2O-YA:9 a=QEXdDO2ut3YA:10 a=PxkB5W3o20Ba91AHUih5:22 X-Proofpoint-ORIG-GUID: QNJ0yd5Vamf0-3vW0sj_rcoC3RVEtxkT X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-19_02,2026-10-14_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 spamscore=0 suspectscore=0 adultscore=0 impostorscore=0 clxscore=1015 bulkscore=0 lowpriorityscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610190024 On 17-10-2026 02:35, Jarkko Sakkinen wrote: > On Thu, Oct 15, 2026 at 12:07:45PM +0530, Kuldeep Singh wrote: >> Qualcomm platforms with a discrete TPM (dTPM) talked to it directly over >> a non-secure SPI channel from the kernel. Arm's Base Boot Security >> Requirements (BBSR) v1.4 require that access to go through TrustZone >> instead, so on affected Qualcomm platforms the TPM 2.0 instance is now >> fronted by a Trusted Application (TA) running inside Qualcomm's Trusted >> Execution Environment (QTEE), which talks to the dTPM (or implements an >> fTPM) on the kernel's behalf. >> >> This series adds a kernel driver for that TA, built on the QCOMTEE >> object-IPC transport (drivers/tee/qcomtee/) already used to reach other >> QTEE services. >> >> This patch series functionally depends on below(first 5 changes specially) >> for qtee service discovery. >> - https://lore.kernel.org/lkml/20261006-qcom_uefisecapp_migrate_qcomtee-v4-0-bf1c8e2a64ab@oss.qualcomm.com/ >> >> Tested on Glymur-crd target with tpm2-tools utility. >> >> Validations: >> - Get capabilities >> - Random number generator >> - RSA key creation, encryption and decryption. >> >> Signed-off-by: Kuldeep Singh >> --- >> Changes in v3: >> - Merge tpm_qcom.h into tpm_qcom.c(Amir comments) >> - Update return values of functions and drop certain error prints. >> - Define locality_arg as default value. >> - Add Jarrko's tag on all but drop from 2/3 as significant changes done. > > I get this because I have hard time to write "catppuccin" correctly ;-) Lol, so sorry for typo! It took me sometime still to figure out where i caused the typo! :( -- Regards Kuldeep