K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2019-02-05T20:09:31.995048Z
K 7
svn:log
V 356
Make it possible to override PAE mode on boot.

Initialize the static kenv in pmap_cold() and fetch user opinion on
vm.pmap.pae_mode tunable if hardware is capable.  Note that the static
environment is reinitilized in init386() later when paging is enabled.

Reviewed by:	bde
Discussed with:	kevans
Sponsored by:	The FreeBSD Foundation
MFC after:	2 months

END