CORE(4) Device Drivers Manual (sparc64) CORE(4)

coreprocessor core

core* at cmp?

The core driver provides support for the chip multi-threading processors that have multiple threads such as the Fujitsu SPARC64-VI processors. It is not a physical device as such, but an abstraction to attach individual CPU threads.

cmp(4), intro(4)

The core driver first appeared in OpenBSD 4.4.

The core driver was written by Mark Kettenis <>.

July 16, 2013 OpenBSD 7.5