[src/netbsd-8]: src/sys/arch/x86/x86 Pull up following revision(s) (requested...

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

details:   https://anonhg.NetBSD.org/src/rev/b9976a5637b8
branches:  netbsd-8
changeset: 851916:b9976a5637b8
user:      martin <martin%NetBSD.org@localhost>
date:      Tue Aug 07 13:28:59 2018 +0000

description:
Pull up following revision(s) (requested by maxv in ticket #960):

        sys/arch/x86/x86/cpu.c: revision 1.159

Oh. Don't call svs_pdir_switch if SVS is disabled, that's not needed.

I was playing around with PMCs, and was wondering why some cache misses
were occurring in svs_pdir_switch while I had SVS disabled.

diffstat:

 sys/arch/x86/x86/cpu.c |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (29 lines):

diff -r eaea4668824c -r b9976a5637b8 sys/arch/x86/x86/cpu.c
--- a/sys/arch/x86/x86/cpu.c    Tue Aug 07 13:24:59 2018 +0000
+++ b/sys/arch/x86/x86/cpu.c    Tue Aug 07 13:28:59 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cpu.c,v 1.130.2.6 2018/04/14 10:11:49 martin Exp $     */
+/*     $NetBSD: cpu.c,v 1.130.2.7 2018/08/07 13:28:59 martin Exp $     */
 
 /*-
  * Copyright (c) 2000-2012 NetBSD Foundation, Inc.
@@ -62,7 +62,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.130.2.6 2018/04/14 10:11:49 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.130.2.7 2018/08/07 13:28:59 martin Exp $");
 
 #include "opt_ddb.h"
 #include "opt_mpbios.h"                /* for MPDEBUG */
@@ -1265,7 +1265,9 @@
 cpu_load_pmap(struct pmap *pmap, struct pmap *oldpmap)
 {
 #ifdef SVS
-       svs_pdir_switch(pmap);
+       if (svs_enabled) {
+               svs_pdir_switch(pmap);
+       }
 #endif
 
 #ifdef PAE