CONFIG_PARAVIRT_GUEST is not available for thedefaultarchitecture x86.
Result is shown for architecture ia64
default or selected kernelversion does not have config value CONFIG_PARAVIRT_GUEST.
Result is shown for kernelversion 6.5.1

Paravirtualized guest support

configname: CONFIG_PARAVIRT_GUEST

Linux Kernel Configuration
└─>Processor type and features
└─>Paravirtualized guest support
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
Say Y here to get to see options related to running Linux under
various hypervisors. This option alone does not add any kernel code.

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

depends
CONFIG_BROKEN