Enable MPS table

modulename: mpparse.ko

configname: CONFIG_X86_MPPARSE

Linux Kernel Configuration for x86
└─>Processor type and features
└─>Enable MPS table
In linux kernel since version 2.6.12  
For old smp systems that do not have proper acpi support. Newer systems
(esp with 64bit cpus) with acpi support, MADT and DSDT will override it

source code:
arch/x86/kernel/mpparse.c
depends
CONFIG_ACPI
CONFIG_X86_LOCAL_APIC or  NOT CONFIG_ACPI

is selected by
CONFIG_X86_NUMAQ