CONFIG_CAVIUM_OCTEON_LOCK_L2_INTERRUPT is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

Lock the 2nd level interrupt handler in L2

configname: CONFIG_CAVIUM_OCTEON_LOCK_L2_INTERRUPT

Linux Kernel Configuration
└─>Lock the 2nd level interrupt handler in L2
In linux kernel since version 2.6.29 (release Date: 2009-03-23)  
Lock the 2nd level interrupt handler in L2.