SMI interface for Google platforms

modulename: gsmi.ko

configname: CONFIG_GOOGLE_SMI

Linux Kernel Configuration
└─>Firmware Drivers
└─>Google Firmware Drivers
└─>ACPI (Advanced Configuration and Power Interface) Support
└─>SMI interface for Google platforms
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y here if you want to enable SMI callbacks for Google
platforms. This provides an interface for writing to and
clearing the EFI event log and reading and writing NVRAM
variables.

source code: