pvclock(4)

pvclock4

Paravirtual clock driver

Usage

pvclock* at pvbus?

Overview

The pvclock driver supports the paravirtual clock that is available in KVM and other hypervisors. pvclock uses a shared page between the host and the hypervisor to synchronize the TSC clock in an efficient way.

Releases

Unchanged in 17 releases since OpenBSD 6.5.

  1. 6.5–8.0

History

The pvclock driver first appeared in OpenBSD 6.5.

Authors

The pvclock driver was written by Reyk Floeter ⟨[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.