CONFIG_JAILHOUSE_GUEST is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT

Jailhouse non-root cell support

modulename: jailhouse.ko

configname: CONFIG_JAILHOUSE_GUEST

Linux Kernel Configuration
└─>Processor type and features
└─>Linux guest support
└─>Jailhouse non-root cell support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This option allows to run Linux as guest in a Jailhouse non-root
cell. You can leave this option disabled if you only want to start
Jailhouse and run Linux afterwards in the root cell.