Zend certified PHP/Magento developer

How to KVM paramters such as enable_apicv, or enable_shadow_vmcs?

In numerous guides (such as this one), I’ve seen that running $ cat /sys/module/kvm_intel/parameters/enable_apicv should return Y, but for me it returns N. How do I actually enable it? It seems that this file is read only, so is there some other config file where I can enable them?