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PVCLOCK(4) Device Drivers Manual PVCLOCK(4)

pvclock
paravirtual clock driver

pvclock* at pvbus?

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.

pvbus(4)

The pvclock driver first appeared in OpenBSD 6.5.

The pvclock driver was written by Reyk Floeter <reyk@openbsd.org>.
November 23, 2018 OpenBSD-current