Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
MFC: r248842Update hwpmc to support Haswell class processors.0x3C: /* Per Intel document 325462-045US 01/2013. */Add manpage to document all the goodness that is available in thisprocessor model.Approved by: sbruno (mentor)