Export efi runtime maps to sysfs
modulename: runtime-map.ko
configname: CONFIG_EFI_RUNTIME_MAP
Linux Kernel Configuration
└─>Firmware Drivers
└─>EFI (Extensible Firmware Interface) Support
└─>Export efi runtime maps to sysfs
In linux kernel since version 3.10 (release Date: 2013-06-30)
Export efi runtime memory maps to /sys/firmware/efi/runtime-map.
That memory map is used for example by kexec to set up efi virtual
mapping the 2nd kernel, but can also be used for debugging purposes.
See also <a href="https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
">Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
</a>
That memory map is used for example by kexec to set up efi virtual
mapping the 2nd kernel, but can also be used for debugging purposes.
See also <a href="https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
">Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
</a>