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23 lines
570 B
Plaintext
23 lines
570 B
Plaintext
#
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# XENHVM -- Xen HVM kernel configuration file for FreeBSD/i386
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#
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# $FreeBSD$
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#
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include GENERIC
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ident XENHVM
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#
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# Adaptive locks rely on a lock-free pointer read to determine the run state
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# of the thread holding a lock when under contention; under a virtualisation
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# system, the thread run state may not accurately reflect whether the thread
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# (or rather its host VCPU) is actually executing. As such, disable this
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# optimisation.
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#
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options NO_ADAPTIVE_MUTEXES
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options NO_ADAPTIVE_RWLOCKS
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options NO_ADAPTIVE_SX
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# Xen HVM support
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options XENHVM
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device xenpci
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