CVS commit: [netbsd-9] src/sys/arch/x86/x86

[Martin Husemann]

Module Name:    src
Committed By:   martin
Date:           Tue Jul 25 11:34:37 UTC 2023

Modified Files:
        src/sys/arch/x86/x86 [netbsd-9]: fpu.c

Log Message:
Pull up following revision(s) (requested by riastradh in ticket #1665):

        sys/arch/x86/x86/fpu.c: revision 1.86

x86/fpu: Align savefpu to 64 bytes in fpuinit_mxcsr_mask.
16 bytes is not enough.

(Is this why it never worked on Xen some years back?  Got lucky and
accidentally had 64-byte alignment on native x86, but not in the call
stack in Xen?)


To generate a diff of this commit:
cvs rdiff -u -r1.55.2.1 -r1.55.2.2 src/sys/arch/x86/x86/fpu.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.


Modified files:

Index: src/sys/arch/x86/x86/fpu.c
diff -u src/sys/arch/x86/x86/fpu.c:1.55.2.1 src/sys/arch/x86/x86/fpu.c:1.55.2.2
--- src/sys/arch/x86/x86/fpu.c:1.55.2.1	Sun Oct 18 18:42:10 2020
+++ src/sys/arch/x86/x86/fpu.c	Tue Jul 25 11:34:37 2023
@@ -1,4 +1,4 @@
-/*	$NetBSD: fpu.c,v 1.55.2.1 2020/10/18 18:42:10 martin Exp $	*/
+/*	$NetBSD: fpu.c,v 1.55.2.2 2023/07/25 11:34:37 martin Exp $	*/
 
 /*
  * Copyright (c) 2008 The NetBSD Foundation, Inc.  All
@@ -96,7 +96,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.55.2.1 2020/10/18 18:42:10 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.55.2.2 2023/07/25 11:34:37 martin Exp $");
 
 #include "opt_multiprocessor.h"
 
@@ -153,7 +153,7 @@ void
 fpuinit_mxcsr_mask(void)
 {
 #ifndef XENPV
-	union savefpu fpusave __aligned(16);
+	union savefpu fpusave __aligned(64);
 	u_long psl;
 
 	memset(&fpusave, 0, sizeof(fpusave));