Bhyve icon

Bhyve

bhyve is an open-source hypervisor that allows users to run multiple operating systems as virtual machines on FreeBSD. It supports features like UEFI firmware, PCI passthrough, SMP, virtio drivers and more.

What is Bhyve?

Bhyve is an open-source Type 2 hypervisor that runs on FreeBSD. It allows users to run multiple guest operating systems (called virtual machines or VMs) simultaneously on a single FreeBSD host system. Bhyve supports hardware virtualization features like Intel VT-x and AMD-V to improve the performance of guest VMs.

Some key features of bhyve include:

  • UEFI firmware support - VMs can have UEFI-based firmware for booting modern operating systems like Windows 8/10/11.
  • PCI passthrough - Allows VM direct and native access to host PCI devices for very high device performance.
  • SMP - VMs can use multiple virtual CPUs.
  • Virtio drivers - High performance paravirtualized drivers.
  • Disk images - VMs run off disk images rather than partitions.
  • Snapshots - Save and restore VM state.
  • Migration - Live migrate running VMs between hosts.

bhyve is bundled with FreeBSD so easy to get running. It has a simple command-line interface but third party tools like vm-bhyve provide a graphical management interface. The main limitation is it currently only runs on FreeBSD hosts.

Official Links

Official Website
bhyve.org

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