[src/trunk]: src/sys/arch/x86/x86 Enable XSAVEOPT.

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

details:   https://anonhg.NetBSD.org/src/rev/a284780fb722
branches:  trunk
changeset: 464936:a284780fb722
user:      maxv <maxv%NetBSD.org@localhost>
date:      Tue Oct 29 12:39:46 2019 +0000

description:
Enable XSAVEOPT.

diffstat:

 sys/arch/x86/x86/identcpu.c |  6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diffs (30 lines):

diff -r daf2b16fb8b6 -r a284780fb722 sys/arch/x86/x86/identcpu.c
--- a/sys/arch/x86/x86/identcpu.c       Tue Oct 29 10:54:10 2019 +0000
+++ b/sys/arch/x86/x86/identcpu.c       Tue Oct 29 12:39:46 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: identcpu.c,v 1.97 2019/10/21 10:09:24 maxv Exp $       */
+/*     $NetBSD: identcpu.c,v 1.98 2019/10/29 12:39:46 maxv Exp $       */
 
 /*-
  * Copyright (c) 1999, 2000, 2001, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: identcpu.c,v 1.97 2019/10/21 10:09:24 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: identcpu.c,v 1.98 2019/10/29 12:39:46 maxv Exp $");
 
 #include "opt_xen.h"
 
@@ -804,11 +804,9 @@
 
        x86_fpu_save = FPU_SAVE_XSAVE;
 
-#if 0 /* XXX PR 52966 */
        x86_cpuid2(0xd, 1, descs);
        if (descs[0] & CPUID_PES1_XSAVEOPT)
                x86_fpu_save = FPU_SAVE_XSAVEOPT;
-#endif
 
        /* Get features and maximum size of the save area */
        x86_cpuid(0xd, descs);