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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6507be642f5sm19972741a12.20.2026.01.13.06.46.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Jan 2026 06:46:24 -0800 (PST) Message-ID: Date: Tue, 13 Jan 2026 15:46:21 +0100 Precedence: bulk X-Mailing-List: linux-watchdog@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] Add support for Gunyah Watchdog To: Alexander Koskovich Cc: Pavan Kondeti , Bjorn Andersson , Neil Armstrong , hrishabh.rajput@oss.qualcomm.com, Konrad Dybcio , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTEzMDEyNCBTYWx0ZWRfX5B33uvIeYVaw wWVGxat/+BaEKVfGK1g+vgItxj8I3XTd1jNPbxoUeV6UlrRdg5w3AG0d7Cz5KUVR5DDbvacYKs+ wB1UsPBFf4tC8xUqyGf7kbuSdRgSXGWIiRy1WcXy8YAv5V3Uogbbpf27xAW00mdO18I2L0VgdGp 2y/nn8fd/gRJoDF7V4dQ2rR7WtbHZrm/56Ce8jhuG1S9Vn0mUWAwzqViJ4Oi2UqBIFYeTdt9A2M 4Ln0pmKbJXr7PHHSjMUP2VqRwFTJBlITsABNXYOsIlzuPWNNvFzaEd0JskJTF+wocbUqqD0ty5/ iI3ILVLcpZf59o5OfF35lbXkqKC/uFcNSkNihJlA58wyuqvk7+IWxwNdx/jxLdwhxrNMMdzmIzW /z8cfaf5NTg/EytlgGtWKYrOVCrbTV9nUa3d0j17+TsIbtNaTO/jgqim3e0utPf1A+rfCixrJJG E92fI5wZqkOkrsluyiw== X-Proofpoint-ORIG-GUID: EK3_uWnSsvaqJ0QeDlWRySMOD3FhaZn_ X-Authority-Analysis: v=2.4 cv=IOEPywvG c=1 sm=1 tr=0 ts=69665ac3 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0dMHunV1XF2N3nHORDIA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-GUID: EK3_uWnSsvaqJ0QeDlWRySMOD3FhaZn_ 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=2026-01-13_03,2026-01-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 spamscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601130124 On 1/6/26 2:29 AM, Alexander Koskovich wrote: > Hey Konrad, > > My device's EDK2 should be on 'KERNEL.PLATFORM.3.0.r1-12700-kernel.0', unfortunately the device I'm working with is secure boot on so I can't modify bootloader to resolve this issue, though I'm not really sure why it's happening when I looked at BootLinux. It seems the hyp dtb handling is the same in both the "dtbo img valid" and "dtbo img invalid" cases, so not sure how it's only happening in the latter case. > > Note, that I do have a blair secure boot off device that I flashed with the same tag (KERNEL.PLATFORM.3.0.r1-12700-kernel.0) since I noticed it happened to support the chipset, but was unable to reproduce the issue there, DTBO gets applied even with a basically empty base DTB. Guessing it may be due to some change in hyp with recent SoCs. What I had in mind is that with the sources you can track down where the issue comes from with a fair degree of confidence.. if that's a Fairphone-specific issue, maybe you could prettyplease ask these folks for a BL update somewhere down the line If you still come to a conclusion that the hyp is wrong, we can accept that workaround.. Konrad