CONFIG_KVM_ARM_TIMER is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
KVM support for Architected Timers
configname: CONFIG_KVM_ARM_TIMER
Linux Kernel Configuration
└─>Virtualization
└─>KVM support for Architected Timers
In linux kernel since version 3.1 (release Date: 2011-10-24)
Adds support for the Architected Timers in virtual machines