default or selected kernelversion does not have config value CONFIG_KVM_DEBUG_FS.
Result is shown for kernelversion 6.9.9
Enable debug information for KVM Guests in debugfs
configname: CONFIG_KVM_DEBUG_FS
Linux Kernel Configuration
└─>Processor type and features
└─>Linux guest support
└─>Enable debug information for KVM Guests in debugfs
In linux kernel since version 3.12 (release Date: 2013-11-03)
This option enables collection of various statistics for KVM guest.
Statistics are displayed in debugfs filesystem. Enabling this option
may incur significant overhead.
Statistics are displayed in debugfs filesystem. Enabling this option
may incur significant overhead.