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The default value for LAPIC registers page physical address is usually right. Having this value available early makes pmap_force_invalidate_cache_range(), used on non-self-snoop machines, avoid flushing LAPIC range for early calls. Reviewed by: alc, markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D32318