Run Cloud Virtual Machines Securely and Efficiently

Cloud Hypervisor is an open source Virtual Machine Monitor (VMM) implemented in Rust that focuses on running modern, cloud workloads, with minimal hardware emulation.

Get Started

Get the source on GitHub

Secure 🔒

Minimal emulated devices and implemented in Rust to avoid many common security issues

Fast ⚡️

Boot to userspace in less than 100ms with direct kernel boot

🪟 & 🐧

Supports running modern Linux and Windows guests

Kata Containers

Supported by Kata Containers for running secure containerised workloads

Powerful REST API

Programmatically control the lifecyle of the VM using an HTTP API


Minimal memory overhead for dense deployments

Cross platform

Runs on both x86-64 and aarch64

Broad device support

Support for wide range of paravirtualised devices and physical device passthrough

Live migration

Migrate VMs from one host to another without interruption

Latest news from Cloud Hypervisor project

Cloud Hypervisor v25.0 Released!

Posted July 7, 2022 by Cloud Hypervisor Team ‐ 1 min read

Memory Management Techniques

Posted July 7, 2022 by Sebastien Boeuf ‐ 6 min read

Cloud Hypervisor v24.0 Released!

Posted May 27, 2022 by Cloud Hypervisor Team ‐ 2 min read