vmt(4)

vmt4

Vmware tools driver

Usage

vmt0 at pvbus0

Overview

The vmt driver is a kernel level implementation of VMware Tools. VMware Tools are intended to provide better support for operating systems running inside virtual machines.

vmt handles shutdown and reboot requests from the host by signalling init(8) with SIGUSR2 and SIGINT respectively. vmt will log notifications that the guest has been suspended or resumed by the host. It also provides access to the host machine's clock as a timedelta sensor.

vmt reports the guest's hostname and all non-loopback IP addresses to the host.

Releases

38 releases since OpenBSD 4.4; the text changed 7 times.

  1. 4.4–4.7
  2. 4.8
  3. 4.9–5.0
  4. 5.1–5.2
  5. 5.3
  6. 5.4–5.7
  7. 5.8–6.8
  8. 6.9–8.0

History

The vmt driver first appeared in OpenBSD 4.4.

Authors

The vmt driver was written by David Gwynne ⟨[email protected]⟩.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.