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Tue, 06 Jan 2026 22:20:38 -0800 (PST) X-Google-Smtp-Source: AGHT+IFx1lYiQhZ8gVzaVIs5EKsSIS+3M39lkVpIbE6b6T/0uy2E+DImqe/1djPdXBhx6I9rWsP9iw== X-Received: by 2002:a05:6a00:ab89:b0:7e8:4398:b362 with SMTP id d2e1a72fcca58-81b7fdbf1c4mr1548383b3a.53.1767766838290; Tue, 06 Jan 2026 22:20:38 -0800 (PST) Received: from [10.217.223.121] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-819c59e826asm3856498b3a.54.2026.01.06.22.20.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 06 Jan 2026 22:20:37 -0800 (PST) Message-ID: <83ec99c3-ab34-4344-ac60-084a85e4fb2a@oss.qualcomm.com> Date: Wed, 7 Jan 2026 11:50:33 +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] arm64: defconfig: Enable QCOMTEE on Qualcomm SM8650+ To: Bjorn Andersson Cc: Sumit Garg , Bjorn Andersson , Dmitry Baryshkov , Krzysztof Kozlowski , Konrad Dybcio , Jens Wiklander , Amirreza Zarrabi , Arnd Bergmann , Geert Uytterhoeven , op-tee@lists.trustedfirmware.org, linux-kernel@vger.kernel.org References: <20251208-qcom_qcomtee_defconfig-v3-1-b50dcf8ab45e@oss.qualcomm.com> <309e0391-58a3-466b-a113-ab864188f6fe@kernel.org> <05581cbd-dfcc-41ac-9020-b1590b8ed7a8@oss.qualcomm.com> <0a4368bf-40a2-42bb-b538-6e64c11598e3@oss.qualcomm.com> <5a064c67-2c15-4ab9-ad34-a56a2e0ec150@oss.qualcomm.com> Content-Language: en-US From: Harshal Dev In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTA3MDA0OSBTYWx0ZWRfX99mv3Jbtx9Kk vdwwcY60ugbr+FKCHTUmBkIf2P7MpTtB2Q5Gh5SgFsVVugc1dPNej/4H7ltEay1V0NPEucXMD3+ nuGMAiofY4V9ALIkICcrCNLm5Kxs6ze0BJuWWRS7prN0uMvjYXE7DdQ6Po5jXlap92pQjepO8u6 Elndinp4HH/l7gPrpiQCD1vWF9V1MTaPDQjAb8uk0nlVKrGRKXn1zwCprXfF1nwdsmSEEGgLvZ4 9Hqshr66YSKh9SKdonA6p9rwqssYFjwkT3JTH1xqsNKm3xDVP5vT9FaPi58qR6GGMN0KGGCfy9B F1lVTplcGwEwwk9PulBpsDoblmA9kaJ5IqFESdGKgKhFI2S/Yj9KlZcy2TC5UVVzUzZhhesqwf3 MKKmeUBMqIuum6G714L7Tb4XEz82AmSKlwaUzCBnIh+oW+ziGP98x0Wc7PjtH0UE/PI5hNsg48h FwNMKga3HgCoY6XlR3A== X-Proofpoint-GUID: 2NEb-bXa5ADRcPK3t5GK-4UDUey9NmuL X-Proofpoint-ORIG-GUID: 2NEb-bXa5ADRcPK3t5GK-4UDUey9NmuL X-Authority-Analysis: v=2.4 cv=Abi83nXG c=1 sm=1 tr=0 ts=695dfb37 cx=c_pps a=WW5sKcV1LcKqjgzy2JUPuA==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=NEAV23lmAAAA:8 a=o-UZHf26lxxCeA_mQM4A:9 a=QEXdDO2ut3YA:10 a=OpyuDcXvxspvyRM73sMx:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-06_03,2026-01-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 suspectscore=0 phishscore=0 impostorscore=0 adultscore=0 malwarescore=0 clxscore=1015 lowpriorityscore=0 spamscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601070049 Hi, On 1/2/2026 11:53 PM, Bjorn Andersson wrote: > On Fri, Jan 02, 2026 at 02:21:57PM +0530, Harshal Dev wrote: > [..] >> >> >> I agree that the defconfig change effectively enables the driver for all arm64 >> boards, not just Qualcomm SoC based ones. To clarify this in the commit message, >> let me explicitly state the following: >> - Why we are enabling it for all arm64 boards. >> - From which Qualcomm SoC onwards the driver is applicable to. >> - What functionality the driver provides. >> - How it's functionality has been tested and on which board. >> >> " >> arm64: defconfig: Enable QCOMTEE module for QTEE-enabled Qualcomm SoCs >> >> All Qualcomm SoCs starting from SM8650 provide access to the Qualcomm Trusted >> Execution Environment (QTEE) through the SMCInvoke interface, implemented by >> the QCOMTEE driver. QTEE runs in the Secure World domain on ARM64 CPUs and >> exposes secure services to Linux running in the Normal World domain. >> >> This change enables the QCOMTEE driver as a module to support communication >> with QTEE. >> >> QCOMTEE has been tested on a Qualcomm RB3Gen2 board by loading and executing >> a Trusted Application via tests hosted at github.com/qualcomm/minkipc. >> " > > This commit message looks good to me. > > It also makes it clear that all platforms up to (not including) SM8650 > _only_ supports QSEECOM, and hence makes it clear that we have reason to > support both mechanisms. I agree, before QCOMTEE driver, QSEECOM was the only way to communicate with QTEE. I hope everyone else is aligned as well. I will send a new patch version with the updated commit. Thanks, Harshal > > Thank you, > Bjorn