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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ac288ffe157sm656739966b.132.2025.03.12.10.58.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 12 Mar 2025 10:58:24 -0700 (PDT) Message-ID: <59de5023-acf4-4f2d-b011-62ca96c597ed@oss.qualcomm.com> Date: Wed, 12 Mar 2025 18:58:22 +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 v1] arm64: dts: qcom: ipq5424: add reserved memory region for bootloader 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> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20250312094948.3376126-1-quic_mmanikan@quicinc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=P506hjAu c=1 sm=1 tr=0 ts=67d1cb42 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Vs1iUdzkB0EA:10 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=9vFMFxKz7TJhonvdC4kA:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-GUID: 46ObFqJD6HRf5f7zn3g8w1tdoq61r8Vd X-Proofpoint-ORIG-GUID: 46ObFqJD6HRf5f7zn3g8w1tdoq61r8Vd 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_06,2025-03-11_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 mlxscore=0 spamscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 suspectscore=0 malwarescore=0 mlxlogscore=623 lowpriorityscore=0 adultscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2503120124 On 3/12/25 10:49 AM, 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: Konrad Dybcio Konrad