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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b353f586161sm123061566b.36.2025.09.25.01.52.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 25 Sep 2025 01:52:03 -0700 (PDT) Message-ID: <9b887bc5-eaa4-4271-8770-3458efb528bf@oss.qualcomm.com> Date: Thu, 25 Sep 2025 10:52:02 +0200 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 v1] arm64: dts: qcom: monaco-evk: Add firmware-name to QUPv3 nodes To: Viken Dadhaniya , andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: mukesh.savaliya@oss.qualcomm.com, anup.kulkarni@oss.qualcomm.com References: <20250925042605.1388951-1-viken.dadhaniya@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20250925042605.1388951-1-viken.dadhaniya@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: ppP6pG82FjqDtWd5wMH4RrFfkyxbdSRd X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTIwMDAxOCBTYWx0ZWRfX/kqU2AcjA/e8 rJ6Jsbg9BZCGmv1PQoZrtFTYa7H8eMsUoZETPxJl2vSAkUt0Jk+lOobwyvR47FwFJYPyUtwBDNc og3qUoIfn0ku+R3mpV0+DHpBO/MtxOc9XwtwmD+KFQAm4IK1Ld+4S+IwwrPOEdIwFg5rviJNvcQ 0V+2Ki081bF/XvZqsnq/UPmO3HCxB3TB1DFsX3bUYvVWiCwzUTeDd6MRv98TOt0Yhmy8s41PcyT PV/aQPZi1sw24VUyPXey2Sfg7+7z72pQ82bPuG149tbkmysSpoxO9TH2rVM3SnVhzGv8jL54bBR t+62m7eXZA6z2QKcwYxfr7h2Oz1RxfbR8qbsIQnrEvKlVvzUx6UbD60WqKO3CDBsZ4m2ZPn7vBD 0ZAOH59t X-Proofpoint-ORIG-GUID: ppP6pG82FjqDtWd5wMH4RrFfkyxbdSRd X-Authority-Analysis: v=2.4 cv=Dp1W+H/+ c=1 sm=1 tr=0 ts=68d502b6 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=EUspDBNiAAAA:8 a=B4HikTB3W-0rk1GVoTwA:9 a=QEXdDO2ut3YA:10 a=zZCYzV9kfG8A:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-24_07,2025-09-24_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 clxscore=1015 adultscore=0 bulkscore=0 impostorscore=0 phishscore=0 spamscore=0 priorityscore=1501 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509200018 On 9/25/25 6:26 AM, Viken Dadhaniya wrote: > Traditionally, firmware loading for Serial Engines (SE) in the QUP hardware > of Qualcomm SoCs has been managed by TrustZone (TZ). While this approach > ensures secure SE assignment and access control, it limits flexibility for > developers who need to enable various protocols on different SEs. > > Add the firmware-name property to QUPv3 nodes in the device tree to enable > firmware loading from the Linux environment. Handle SE assignments and > access control permissions directly within Linux, removing the dependency > on TrustZone. > > Signed-off-by: Viken Dadhaniya > --- Viken, you've posted a lot of patches like these lately for specific boards. Should we instead push this to the SoC DTSI, to limit the boilerplate? If I recall correctly, you said these ELFs are not vendor-signed, so it should be OK to have them be assigned globally Konrad