Install the basic files required.
yum install qemu-kvm libvirt libvirt-python libguestfs-tools virt-install
now we start the sevice livird which is the aemon component of the libvirt virtualization management system. All the fun stuff of virtual host management.
systemctl enable libvirtd
systemctl start libvirtd
Verify the installation
lsmod | grep -i kvm
Did a quick reboot - network restart ?
bridge name bridge id STP enabled interfaces
virbr0 8000.525400fac60c yes virbr0-nic
A default private network was created : 192.168.122.0/24
This can be verified with the command:
virsh net-dumpxml default