Reserved Memory Based Driver Support

modulename: nvmem-rmem.ko

configname: CONFIG_NVMEM_RMEM

Linux Kernel Configuration
└─>Device Drivers
└─>NVMEM Support
└─>Reserved Memory Based Driver Support
In linux kernel since version 5.2 (release Date: 2019-07-07)  
This driver maps reserved memory into an nvmem device. It might be
useful to expose information left by firmware in memory.

This driver can also be built as a module. If so, the module
will be called nvmem-rmem.

source code: