[src/trunk]: src/sys/arch/amd64/include Explain where this value comes from.

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f3c5abf6e0a8
branches:  trunk
changeset: 345347:f3c5abf6e0a8
user:      maxv <maxv%NetBSD.org@localhost>
date:      Sat May 21 07:00:18 2016 +0000

description:
Explain where this value comes from.

diffstat:

 sys/arch/amd64/include/pmap.h |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (18 lines):

diff -r d8914b57dc14 -r f3c5abf6e0a8 sys/arch/amd64/include/pmap.h
--- a/sys/arch/amd64/include/pmap.h     Sat May 21 06:37:28 2016 +0000
+++ b/sys/arch/amd64/include/pmap.h     Sat May 21 07:00:18 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.h,v 1.36 2016/05/14 12:48:31 maxv Exp $   */
+/*     $NetBSD: pmap.h,v 1.37 2016/05/21 07:00:18 maxv Exp $   */
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -155,7 +155,7 @@
 /* Xen use slots 256-272, let's move farther */
 #define L4_SLOT_KERN           320
 #endif
-#define L4_SLOT_KERNBASE       511
+#define L4_SLOT_KERNBASE       511 /* pl4_i(KERNBASE) */
 
 #define PDIR_SLOT_KERN L4_SLOT_KERN
 #define PDIR_SLOT_PTE  L4_SLOT_PTE