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Wed, 12 Mar 2025 09:12:38 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFsJrVBVvsHyhb69yiGojX9yNVwRl1fqH3O7J84B34D/C7flq2CKu0AwOv2Jv9wq0SwKWnDCQ== X-Received: by 2002:a17:90b:38cd:b0:2ee:741c:e9f4 with SMTP id 98e67ed59e1d1-2ff7ce8e5dfmr33019572a91.11.1741795958249; Wed, 12 Mar 2025 09:12:38 -0700 (PDT) Received: from [192.168.29.17] ([49.37.215.201]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-301190bbd78sm1984931a91.39.2025.03.12.09.12.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 12 Mar 2025 09:12:37 -0700 (PDT) Message-ID: <282f1470-bab7-4f1c-8ffd-a6037736489d@oss.qualcomm.com> Date: Wed, 12 Mar 2025 21:42:33 +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 v1] arm64: dts: qcom: ipq5424: add reserved memory region for bootloader Content-Language: en-US To: Manikanta Mylavarapu , 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: quic_varada@quicinc.com, quic_srichara@quicinc.com References: <20250312094948.3376126-1-quic_mmanikan@quicinc.com> From: Kathiravan Thirumoorthy In-Reply-To: <20250312094948.3376126-1-quic_mmanikan@quicinc.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=D6NHKuRj c=1 sm=1 tr=0 ts=67d1b27c cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=d+lWxUpqeNYAcJEdQAshKg==:17 a=IkcTkHD0fZMA:10 a=Vs1iUdzkB0EA:10 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=9vFMFxKz7TJhonvdC4kA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-GUID: xRS8MatvddJZXKHApRX22KOda9XJsvT_ X-Proofpoint-ORIG-GUID: xRS8MatvddJZXKHApRX22KOda9XJsvT_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1093,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-12_05,2025-03-11_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 suspectscore=0 priorityscore=1501 mlxscore=0 spamscore=0 lowpriorityscore=0 phishscore=0 adultscore=0 malwarescore=0 mlxlogscore=499 clxscore=1015 impostorscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2503120111 On 3/12/2025 3:19 PM, Manikanta Mylavarapu wrote: > In IPQ5424, the bootloader collects the system RAM contents upon a crash > for post-morterm analysis. If we don't reserve the memory region used by > the bootloader, linux will consume it. Upon the next boot after a crash, > the bootloader will be loaded in the same region, which could lead to the > loss of some data. sometimes, we may miss out critical information. > Therefore, let's reserve the region used by the bootloader. > > Signed-off-by: Manikanta Mylavarapu Reviewed-by: Kathiravan Thirumoorthy