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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-353f6205d3esm16462175a91.13.2026.02.01.18.19.21 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 01 Feb 2026 18:19:24 -0800 (PST) Message-ID: <7efdf5ab-fd96-4388-b914-8ac1f90e5813@oss.qualcomm.com> Date: Mon, 2 Feb 2026 10:19:19 +0800 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] arm64: dts: qcom: hamoa: Add remoteproc in EL2 device trees To: Xilin Wu , andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, tingwei.zhang@oss.qualcomm.com, jie.gan@oss.qualcomm.com, Konrad Dybcio References: <20260130073113.3091884-1-xin.liu@oss.qualcomm.com> <11D9329300A4B492+9485ef48-5ac3-4030-afd3-e5c7dabfa1d8@radxa.com> From: Xin Liu In-Reply-To: <11D9329300A4B492+9485ef48-5ac3-4030-afd3-e5c7dabfa1d8@radxa.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: c9n5eCFLDAIidwq_o-IJ5atU5eSrg0yr X-Proofpoint-ORIG-GUID: c9n5eCFLDAIidwq_o-IJ5atU5eSrg0yr X-Authority-Analysis: v=2.4 cv=Fu8IPmrq c=1 sm=1 tr=0 ts=698009ae cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=lhBQhH1O_-Za_c4e93IA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=eSe6kog-UzkA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjAyMDAxNiBTYWx0ZWRfX6B5kDkWp4cBJ Svn1zkAYJSPBe+EwQu+n1XSYslVlnTpWgy9XHRGXxXnrdlhQ+B8ZwD3Klvaz9JO1P0s6nlf95Us B5LVAC7ovOLH8Qge2dekeaE06ufYEtzdZ9OOEwkgJ5A+IWRMkFU9gg6bau4xHt5N6ZkjZCntU9I Eoz2Ljj3neWh0lUIIeUjipG0s+klHDG19ZV4uMEfUXVByj5rIy5iMdsUarL8gH64LPjDU+7zYHd GCj0cbquIlKLZpwiHlHDAv3IO4jN9egQ7/YtmN1eGGNyRIFMP4JKC7Xh41d3jsDFBhzQ0OItk6S JbMJDQZfjKmY1h+ZTXigFw48yXrffM9ZUD2+4xLJJ9u7RVwDtoyiJh1JrikkMh4DGp5xUcEs8dt b7uS+E1rOlzD//OpcML6J759yWFw+wBRZX7K6qjO1Xg0zNmw5Z9AKFfXNRE1YzvwXoOztcyCx/f CurAI4pMtXC1z/nwAFA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-02_01,2026-01-30_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 suspectscore=0 bulkscore=0 malwarescore=0 adultscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602020016 On 1/30/2026 5:37 PM, Xilin Wu wrote: > On 1/30/2026 3:31 PM, Xin Liu wrote: >> All the existing variants Talos boards are using Gunyah hypervisor >> which means that, so far, Linux-based OS could only boot in EL1 on >> those devices.  However, it is possible for us to boot Linux at EL2 >> on these devices [1]. >> >> When running under Gunyah, the remote processor firmware IOMMU streams >> are controlled by Gunyah. However, without Gunyah, the IOMMU is managed >> by the consumer of this DeviceTree. Therefore, describe the firmware >> streams for each remote processor. >> >> Add remoteproc to the EL2 device trees to generate the corresponding >> -el2.dtb files. >> >> [1] >> https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-4/boot-developer-touchpoints.html#uefi >> >> >> Signed-off-by: Xin Liu >> --- >>   arch/arm64/boot/dts/qcom/x1-el2.dtso | 8 ++++++++ >>   1 file changed, 8 insertions(+) >> > > Hi Xin, > > Will this work on Snapdragon X laptops running the older Windows > firmware? I believe that Peripheral Image Loader support in EL2 > requires a newer version of the TrustZone firmware. > > I noticed that the TrustZone firmware used in hamoa_iot-ubuntu [1] has > a different version string compared to the WP firmware found in laptops: > > iot-ubuntu: TZ.XF.5.0 > WP: TZ.XF.5.28.1 > > > [1] > https://softwarecenter.qualcomm.com/nexus/generic/software/chip/ubuntu_qualcomm_iot-spf-1-0/ubuntu-qualcomm-iot-spf-1-0_test_device_public/r1.0.r1_00004.0/hamoa_iot-ubun-1-0-r1/common/build/bin > > Hi，Xilin Now firmware can not work, still need TZ team to modify some things. It is the only modification from kernel side, so I update it. Uploading this modification will also facilitate debugging by TZ team. Thanks, Xin