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#
# XENHVM -- Xen HVM kernel configuration file for FreeBSD/amd64
#
# $FreeBSD$
#
include GENERIC
ident XENHVM
#
# Adaptive locks rely on a lock-free pointer read to determine the run state
# of the thread holding a lock when under contention; under a virtualisation
# system, the thread run state may not accurately reflect whether the thread
# (or rather its host VCPU) is actually executing. As such, disable this
# optimisation.
#
options NO_ADAPTIVE_MUTEXES
options NO_ADAPTIVE_RWLOCKS
options NO_ADAPTIVE_SX
# Xen HVM support
options XENHVM
device xenpci
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