CONFIG_KVM_MIPS_DEBUG_COP0_COUNTERS is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

Maintain counters for COP0 accesses

configname: CONFIG_KVM_MIPS_DEBUG_COP0_COUNTERS

Linux Kernel Configuration
└─>Virtualization
└─>Maintain counters for COP0 accesses
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Maintain statistics for Guest COP0 accesses.
A histogram of COP0 accesses is printed when the VM is
shutdown.

If unsure, say N.