Module Name: src
Committed By: riastradh
Date: Fri Mar 3 14:40:16 UTC 2023
Modified Files:
src/sys/arch/x86/x86: fpu.c
Log Message:
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?)
XXX pullup-10
To generate a diff of this commit:
cvs rdiff -u -r1.85 -r1.86 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:1.85 src/sys/arch/x86/x86/fpu.c:1.86
--- src/sys/arch/x86/x86/fpu.c:1.85 Fri Mar 3 14:32:48 2023
+++ src/sys/arch/x86/x86/fpu.c Fri Mar 3 14:40:16 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: fpu.c,v 1.85 2023/03/03 14:32:48 riastradh Exp $ */
+/* $NetBSD: fpu.c,v 1.86 2023/03/03 14:40:16 riastradh Exp $ */
/*
* Copyright (c) 2008, 2019 The NetBSD Foundation, Inc. All
@@ -96,7 +96,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.85 2023/03/03 14:32:48 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.86 2023/03/03 14:40:16 riastradh Exp $");
#include "opt_multiprocessor.h"
@@ -188,7 +188,7 @@ 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));
