Yea it seems like it's something to act like ACPI and DMI but on ARM, right now this is being "solved" in linux with the whole Device Tree subsystem where there's a config file that's passed to the kernel on boot that gives all this data about the memory map, peripherals, etc. I'm hoping that this does work out to completely replace the whole device tree idea since then kernel support will be a lot simpler for a user, esp since UEFI has also been starting to be adopted on more ARM based systems now too.