linux-kernel - Re: [PATCH v1] arm64: dts: qcom: ipq5424: add reserved memory region for bootloader

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Message-ID: <282f1470-bab7-4f1c-8ffd-a6037736489d@oss.qualcomm.com>
Date: Wed, 12 Mar 2025 21:42:33 +0530
From: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
To: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>, andersson@...nel.org,
        konradybcio@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: quic_varada@...cinc.com, quic_srichara@...cinc.com
Subject: Re: [PATCH v1] arm64: dts: qcom: ipq5424: add reserved memory region
 for bootloader

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 <quic_mmanikan@...cinc.com>
Reviewed-by: Kathiravan Thirumoorthy 
<kathiravan.thirumoorthy@....qualcomm.com>