Early load microcode

modulename: microcode_core_early.ko

configname: CONFIG_MICROCODE_EARLY

Linux Kernel Configuration
└─>Processor type and features
└─>Early load microcode
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This option provides functionality to read additional microcode data
at the beginning of initrd image. The data tells kernel to load
microcode to CPU's as early as possible. No functional change if no
microcode data is glued to the initrd, therefore it's safe to say Y.

source code: