PVCLOCK(4) | Device Drivers Manual | PVCLOCK(4)

# NAME

`pvclock` — paravirtual clock driver

# SYNOPSIS

`pvclock* at pvbus?`

# DESCRIPTION

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.

# SEE ALSO

pvbus(4)

# HISTORY

The `pvclock` driver first appeared in OpenBSD 6.5.

# AUTHORS

The `pvclock` driver was written by Reyk Floeter <reyk@openbsd.org>.

November 23, 2018 | Debian