Enable paravirtualization code

modulename: paravirt.ko


Linux Kernel Configuration
└─>Processor type and features
└─>Linux guest support
└─>Enable paravirtualization code
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This changes the kernel so it can modify itself when it is run
under a hypervisor, potentially improving performance significantly
over full virtualization. However, when run without a hypervisor
the kernel is theoretically slower and slightly larger.