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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-kernel@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-GUID: Cv4s1xvO6KRyzRnwe9Z6Ommsox4EBJO3 X-Proofpoint-ORIG-GUID: Cv4s1xvO6KRyzRnwe9Z6Ommsox4EBJO3 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTEzMDEyNCBTYWx0ZWRfXytASxKbalD8W W6X53SejMqpq6AzVMqNYN6yYf9GRoo1QY0igqCi6/gqfRBEvZql5WdvsEC4zy/z8qqM5unU9soN tWGGYz4YiFWKPw3YZhkbltmvpRxFy+iqTI9b7RV7srnTumLq7hrWq/qSd3NHkLftWqOGgIbPUI2 k+TGP5+V7Os5vzBY9UR8+1dg+jM2wSUWkzQLqBQh3P92FqgbLCwIK01ZZpbSeSKMVfHmC9MwmSj /4V2++L979Jg4wUl4W93Tu4V7HlUasUXOuJPbhippw5on9LHDAPRAhoFrTQKb1ywV7Qemp5qjwt LN40mjTecG4+fSNxRjvQqTZUi/VbD78WWyGDVG0Thgnwv8ubW9d/+2fOF6gchCW+dY83qxi23jb c4JLm/A9BYdWo+xTw7bjs6GKIRw3AuiG1zLEIklJM5A6R9I65NFf+H10suWHObdvsz+BdrOYrQY NqNaXff4edly5CIsNpg== X-Authority-Analysis: v=2.4 cv=IIsPywvG 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-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 lowpriorityscore=0 malwarescore=0 adultscore=0 clxscore=1015 bulkscore=0 phishscore=0 priorityscore=1501 suspectscore=0 spamscore=0 impostorscore=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