Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
Apply Typo-B-Gone 2000 [TM]
s/LAPIC/local APIC/ to closer follow Intel documents.Submitted by: jhb
Remove extra "and" left from earlier version.
Add apic(4) man page, now mostly to cover its event timer functionality.