CONFIG_CMDLINE_ON_HOST is not available for thedefaultarchitecture x86.
Result is shown for architecture um
default or selected kernelversion does not have config value CONFIG_CMDLINE_ON_HOST.
Result is shown for kernelversion 5.4.123

Show command line arguments on the host in TT mode

configname: CONFIG_CMDLINE_ON_HOST

Linux Kernel Configuration
└─>Kernel hacking
└─>Show command line arguments on the host in TT mode
In linux kernel since version 2.6.14 (release Date: 2005-10-27)  
This controls whether arguments in guest processes should be shown on
the host's ps output.
Enabling this option hinders debugging on some recent GDB versions
(because GDB gets "confused" when we do an execvp()). So probably you
should disable it.

depends
CONFIG_MODE_TT