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Mon, 05 Oct 2026 05:00:27 -0700 (PDT) X-Received: by 2002:a17:90b:4c05:b0:3a4:ba6e:65c9 with SMTP id 98e67ed59e1d1-3a6ce963ad0mr4301044a91.59.1791201626566; Mon, 05 Oct 2026 05:00:26 -0700 (PDT) Received: from [10.218.31.125] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a78d6b3ceasm11047079a91.10.2026.10.05.05.00.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 05 Oct 2026 05:00:26 -0700 (PDT) Message-ID: Date: Mon, 5 Oct 2026 17:30:20 +0530 Precedence: bulk X-Mailing-List: linux-integrity@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/3] Add TPM support via Qualcomm TEE TPM TA To: Dmitry Baryshkov , Xilin Wu Cc: zeroknots , amirreza.zarrabi@oss.qualcomm.com, jarkko@kernel.org, jenswi@kernel.org, jgg@ziepe.ca, linux-arm-msm@vger.kernel.org, linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, op-tee@lists.trustedfirmware.org, peterhuewe@gmx.de, sumit.garg@kernel.org References: <20261001055029.1960743-1-zeroknots@protonmail.com> <0c6d29ce-920a-4566-9a4f-a0687b0e5ddc@oss.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-GUID: 1TCQVxtIDFf90rt_tFt7-93zWIWFNAGZ X-Proofpoint-ORIG-GUID: 1TCQVxtIDFf90rt_tFt7-93zWIWFNAGZ X-Authority-Analysis: v=2.4 cv=A6b5rKWG c=1 sm=1 tr=0 ts=6ac3915e cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=WzojQP8EweJUJc-V32sA:9 a=QEXdDO2ut3YA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDA1MDA0NiBTYWx0ZWRfXw+XIt+tynB+c eW6YDfwnbT2TaTiZqoaiqNOu9oTWJWdyeVGScUiYraTOxm9rS7/i+waGqrSdEX2VQa8b6dWWdrX tm6qsELlBEflLeXDjrnUmauaYKf8m3zUI0cBbtMYL4vgDvoio3wM1QfJMPrprDHuPUSkr8rcE5X OSasi2XlHwyPzNWHDUoSPJSAidOr6qc8TuJaN8U5dzS+AtG8MmrFdJPzf+S52In2b+ekW9knd0e zpsZ3OkXr0u+DiMfe4owEFR8hN00KSNrgRauQkvcg6Pshz26S0bbr3s1llF+6YG9CO9S9RHWwp7 xdf/cqk6Hl+HFoVh2cixXtsbAfMc9dpzm5peGtU2fir8objSUfT40VQoJDauxnw1qBG6FEFGmiB yUqs+5iHzwMQGXAZW0B74/uBphce/QzPLRb1w4eLnYUg2wnmVEN6A+tEylcEM1ZAV+pOQ73viwl 3ytjwWYTUTDnQJ9SrPA== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDA1MDA0NiBTYWx0ZWRfX8RqcXrMvv5uS ZfV56c5w6+9vnGHuvofOEZYPZEMC2bWmk9+2GKzIntd7vIwwLdJy0y4u+btUEEk699ZDKF6lQMx EZF9sJDstXkB5r9bQEoV2bjY6vFOX5g= 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=2026-10-05_03,2026-10-02_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 priorityscore=1501 impostorscore=0 phishscore=0 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610050046 >>> Two questions: >>> >>> - Is service 81 expected to appear on retail firmware through an >>> update, or is it specific to the CRD firmware? >> >> Yes, there's spinor update(bootfw2.mbn) needed which is in progress to >> publish as QTEE side changes were already merged long back. >> Roughly it takes ~1month(ideal scenario) to get firmware changes >> available but somehow it's taking more this time. >> >> I think i should have captured this dependency info in my series cover >> letter to avoid any confusion. >> >> With the changes, service uid 81 will be available and won't see qcomtee >> driver issue log there. > > You are responding to the user who uses a COTS commercial device. Are > you suggesting that the user can somehow update the firmware on that > device? Ahh, for COTS devices as one cannot replace firmware so it's better to use qseecom path in that case. For latest ones, one can switch to qcomtee based approach. If Xilin already has qseecom interface written then it's best to have it for the COTS devices. -- Regards Kuldeep