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---
edit_link: ''
title: Introduction
origin_url: >-
https://raw.githubusercontent.com/automotive-grade-linux/docs-sources/master/docs/security-blueprint/part-3/0_Abstract.md
---
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# Part 3 - Hypervisor
Definition: "A hypervisor or virtual machine monitor (VMM) is computer software,
firmware or hardware that creates and runs virtual machines".
It must include a signature verification (possibly delegated).
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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)).
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## 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.
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