Messages in this thread | | | Date | Mon, 23 Oct 2023 14:54:44 +0200 | Subject | Re: [PATCH v1 0/5] soc/arm64: qcom: add initial version of memory dump | From | Krzysztof Kozlowski <> |
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On 23/10/2023 14:18, Zhenhua Huang wrote: > > > On 2023/10/23 17:25, Krzysztof Kozlowski wrote: >> On 23/10/2023 11:20, Zhenhua Huang wrote: >>> Qualcomm memory dump driver is to cooperate with firmware, providing the >>> hints(id and size) of storing useful debugging information into pre-allocated >>> memory. Firmware then does the real data capture. The debugging information >>> includes cache contents, internal memory, registers. >>> >>> The driver dynamically reserves memory and provides the hints(dump id and size) >>> following specified protocols with firmware. After crash and warm reboot, >>> firmware scans these information and stores contents into reserved memory >>> accordingly. Firmware then enters into full dump mode which dumps whole DDR >>> to host through USB. >> >> How does it relate to minidump? > > Minidump is used for dumping *software* related data/information. While > the memory dump is used to communicate with firmware to dump *hardware* > related information.
I would argue then you should integrate both things...
Best regards, Krzysztof
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