K 10
svn:author
V 6
cherry
K 8
svn:date
V 27
2013-01-27T12:52:08.243905Z
K 7
svn:log
V 595
This commit contains the following unrelated changes:
 - Map in the xenstore shared page into kernel space.
 - Move 48bit va extension handling belongs to mmu_map.c
 - Don't leak vtopte_hold()/release() semantics.
 - in pmap_zero_page(), remove temporarily mapped page, after zero-ing
   it.
 - ptov() and vtop() functions should not be page aligned - we use
   them for pte offset calculations.
 - We can't use M_ZERO to uma_zalloc() into backing page arena, since
   init() function marks them RO (xen requires this). Instead, we
   manually zero backing pages.

Approved by: gibbs (implicit)

END