clarify a comment about memory regions

diff --git a/usr.sbin/vmd/vmm.c b/usr.sbin/vmd/vmm.c
index 1902a2e..ba54944 100644 (file)
--- a/usr.sbin/vmd/vmm.c
+++ b/usr.sbin/vmd/vmm.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: vmm.c,v 1.28 2016/06/10 16:33:15 stefan Exp $ */
+/*     $OpenBSD: vmm.c,v 1.29 2016/07/06 07:09:15 mlarkin Exp $        */
 
 /*
  * Copyright (c) 2015 Mike Larkin <mlarkin@openbsd.org>
@@ -675,9 +675,10 @@ create_memory_map(struct vm_create_params *vcp)
 
        /*
         * Second memory region: LOWMEM_KB - 1MB.
-        * XXX Normally ROMs or parts of video RAM are mapped here.
+        *
+        * N.B. - Normally ROMs or parts of video RAM are mapped here.
         * We have to add this region, because some systems
-        * unconditionally write to 0xb8000 (video RAM), and
+        * unconditionally write to 0xb8000 (VGA RAM), and
         * we need to make sure that vmm(4) permits accesses
         * to it. So allocate guest memory for it.
         */