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      1 /*	$NetBSD: sysarch.h,v 1.15 2020/06/19 16:20:22 maxv Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _X86_SYSARCH_H_
     33 #define _X86_SYSARCH_H_
     34 
     35 #define X86_GET_LDT		0
     36 #define X86_SET_LDT		1
     37 #define X86_IOPL		2
     38 #define X86_GET_IOPERM		3
     39 #define X86_SET_IOPERM		4
     40 #define X86_OLD_VM86		5
     41 #define X86_GET_MTRR		11
     42 #define X86_SET_MTRR		12
     43 #define X86_VM86		13
     44 #define X86_GET_GSBASE		14
     45 #define X86_GET_FSBASE		15
     46 #define X86_SET_GSBASE		16
     47 #define X86_SET_FSBASE		17
     48 
     49 #ifdef _KERNEL
     50 #define _X86_SYSARCH_L(x)	x86_##x
     51 #define _X86_SYSARCH_U(x)	X86_##x
     52 #elif defined(__i386__)
     53 #define _X86_SYSARCH_L(x)	i386_##x
     54 #define _X86_SYSARCH_U(x)	I386_##x
     55 #define I386_GET_LDT		X86_GET_LDT
     56 #define I386_SET_LDT		X86_SET_LDT
     57 #define I386_IOPL		X86_IOPL
     58 #define I386_GET_IOPERM		X86_GET_IOPERM
     59 #define I386_SET_IOPERM		X86_SET_IOPERM
     60 #define I386_OLD_VM86		X86_OLD_VM86
     61 #define I386_GET_MTRR		X86_GET_MTRR
     62 #define I386_SET_MTRR		X86_SET_MTRR
     63 #define I386_VM86		X86_VM86
     64 #define I386_GET_GSBASE		X86_GET_GSBASE
     65 #define I386_GET_FSBASE		X86_GET_FSBASE
     66 #define I386_SET_GSBASE		X86_SET_GSBASE
     67 #define I386_SET_FSBASE		X86_SET_FSBASE
     68 #else
     69 #define _X86_SYSARCH_L(x)	x86_64_##x
     70 #define _X86_SYSARCH_U(x)	X86_64_##x
     71 #define X86_64_GET_LDT		X86_GET_LDT
     72 #define X86_64_SET_LDT		X86_SET_LDT
     73 #define X86_64_IOPL		X86_IOPL
     74 #define X86_64_GET_IOPERM	X86_GET_IOPERM
     75 #define X86_64_SET_IOPERM	X86_SET_IOPERM
     76 #define X86_64_OLD_VM86		X86_OLD_VM86
     77 #define X86_64_GET_MTRR		X86_GET_MTRR
     78 #define X86_64_SET_MTRR		X86_SET_MTRR
     79 #define X86_64_VM86		X86_VM86
     80 #define X86_64_GET_GSBASE	X86_GET_GSBASE
     81 #define X86_64_GET_FSBASE	X86_GET_FSBASE
     82 #define X86_64_SET_GSBASE	X86_SET_GSBASE
     83 #define X86_64_SET_FSBASE	X86_SET_FSBASE
     84 #endif
     85 
     86 /*
     87  * Architecture specific syscalls (x86)
     88  */
     89 
     90 struct _X86_SYSARCH_L(get_ldt_args) {
     91 	int start;
     92 	union descriptor *desc;
     93 	int num;
     94 };
     95 
     96 struct _X86_SYSARCH_L(set_ldt_args) {
     97 	int start;
     98 	union descriptor *desc;
     99 	int num;
    100 };
    101 
    102 struct _X86_SYSARCH_L(get_mtrr_args) {
    103 	struct mtrr *mtrrp;
    104 	int *n;
    105 };
    106 
    107 struct _X86_SYSARCH_L(set_mtrr_args) {
    108 	struct mtrr *mtrrp;
    109 	int *n;
    110 };
    111 
    112 struct _X86_SYSARCH_L(iopl_args) {
    113 	int iopl;
    114 };
    115 
    116 struct _X86_SYSARCH_L(get_ioperm_args) {
    117 	u_long *iomap;
    118 };
    119 
    120 struct _X86_SYSARCH_L(set_ioperm_args) {
    121 	u_long *iomap;
    122 };
    123 
    124 struct mtrr;
    125 
    126 #ifdef _KERNEL
    127 int x86_iopl(struct lwp *, void *, register_t *);
    128 int x86_get_ldt1(struct lwp *, struct x86_get_ldt_args *, union descriptor *);
    129 int x86_set_ldt1(struct lwp *, struct x86_set_ldt_args *, union descriptor *);
    130 int x86_set_sdbase(void *, char, lwp_t *, bool);
    131 int x86_get_sdbase(void *, char);
    132 #else
    133 #include <sys/cdefs.h>
    134 __BEGIN_DECLS
    135 int _X86_SYSARCH_L(get_ldt)(int, union descriptor *, int);
    136 int _X86_SYSARCH_L(set_ldt)(int, union descriptor *, int);
    137 int _X86_SYSARCH_L(iopl)(int);
    138 int _X86_SYSARCH_L(set_mtrr)(struct mtrr *, int *);
    139 int _X86_SYSARCH_L(get_mtrr)(struct mtrr *, int *);
    140 int sysarch(int, void *);
    141 __END_DECLS
    142 #endif
    143 
    144 #endif /* !_X86_SYSARCH_H_ */
    145