K 10
svn:author
V 8
jchandra
K 8
svn:date
V 27
2010-08-12T11:00:45.453600Z
K 7
svn:log
V 263
SMP support in n64.

- Enable KX and UX bits on CPU startup for non-boot CPUs
- Keep the KX bit when in userspace - XTLB handler needs it to access
  PCPU data
- revert r210638 partly - we don't need to enable KX on kernel entry
  now

Reviewed by:	jmallett, imp

END