Virtualization

configname: CONFIG_VIRTUALIZATION

Linux Kernel Configuration
└─>Virtualization
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
Say Y here to get to see options for using your Linux host to run other
operating systems inside virtual machines (guests).
This option alone does not add any kernel code.

If you say N, all options in this submenu will be skipped and disabled.