# Part 3 - Hypervisor Definition: "A hypervisor or virtual machine monitor (VMM) is computer software, firmware or hardware that creates and runs virtual machines". Domain | Improvement --------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Hypervisor-Abstract-1 | Complete Hypervisor part ([jailhouse](https://github.com/siemens/jailhouse) / [KVM](https://www.linux-kvm.org/page/Main_Page) / [Xen](https://www.xenproject.org/developers/teams/embedded-and-automotive.html)). ## Native or Bare-metal hypervisors These hypervisors run directly on the host's hardware to control the hardware and to manage guest operating systems. Those are the ones we're interested in.