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Diffstat (limited to 'lib/libarch/amd64/amd64_iopl.c')
-rw-r--r-- | lib/libarch/amd64/amd64_iopl.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/lib/libarch/amd64/amd64_iopl.c b/lib/libarch/amd64/amd64_iopl.c new file mode 100644 index 00000000000..6570496737a --- /dev/null +++ b/lib/libarch/amd64/amd64_iopl.c @@ -0,0 +1,56 @@ +/* $OpenBSD: amd64_iopl.c,v 1.1 2004/02/27 23:44:56 deraadt Exp $ */ +/* $NetBSD: i386_iopl.c,v 1.2 1996/02/27 22:57:29 jtc Exp $ */ + +/*- + * Copyright (c) 1996 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by John T. Kohl and Charles M. Hannum. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +#include <sys/types.h> + +#include <machine/segments.h> +#include <machine/sysarch.h> + +int +amd64_iopl(iopl) + int iopl; +{ + struct amd64_iopl_args p; + + p.iopl = iopl; + + /* LINTED pointer casts may be troublesome */ + return sysarch(AMD64_IOPL, (char *)&p); +} |