/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1993 The Regents of the University of California.
 * All rights reserved.
 *
 * 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. Neither the name of the University 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 REGENTS 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.
 */

/*
 * Architecture specific syscalls (X86)
 */
#ifndef _MACHINE_SYSARCH_H_
#define _MACHINE_SYSARCH_H_

#include <sys/cdefs.h>

#define I386_GET_LDT    0
#define I386_SET_LDT    1
#define LDT_AUTO_ALLOC  0xffffffff
                                /* I386_IOPL */
#define I386_GET_IOPERM 3
#define I386_SET_IOPERM 4
                                /* xxxxx */
#define I386_VM86               6       /* XXX Not implementable on amd64 */
#define I386_GET_FSBASE         7
#define I386_SET_FSBASE         8
#define I386_GET_GSBASE         9
#define I386_SET_GSBASE         10
#define I386_GET_XFPUSTATE      11
#define I386_SET_PKRU           12
#define I386_CLEAR_PKRU         13

/* Leave space for 0-127 for to avoid translating syscalls */
#define AMD64_GET_FSBASE        128
#define AMD64_SET_FSBASE        129
#define AMD64_GET_GSBASE        130
#define AMD64_SET_GSBASE        131
#define AMD64_GET_XFPUSTATE     132
#define AMD64_SET_PKRU          133
#define AMD64_CLEAR_PKRU        134
#define AMD64_GET_TLSBASE       135
#define AMD64_SET_TLSBASE       136
#define AMD64_DISABLE_TLSBASE   137

/* Flags for AMD64_SET_PKRU */
#define AMD64_PKRU_EXCL         0x0001
#define AMD64_PKRU_PERSIST      0x0002

struct i386_ioperm_args {
        unsigned int start;
        unsigned int length;
        int     enable;
};

#ifdef __i386__
struct i386_ldt_args {
        unsigned int start;
        union descriptor *descs;
        unsigned int num;
};

struct i386_vm86_args {
        int     sub_op;                 /* sub-operation to perform */
        char    *sub_args;              /* args */
};

struct i386_get_xfpustate {
        void *addr;
        int len;
};
#else
struct i386_ldt_args {
        unsigned int start;
        struct user_segment_descriptor *descs __packed;
        unsigned int num;
};

struct i386_get_xfpustate {
        unsigned int addr;
        int len;
};

struct i386_set_pkru {
        unsigned int addr;
        unsigned int len;
        unsigned int keyidx;
        int flags;
};

struct amd64_get_xfpustate {
        void *addr;
        int len;
};
#endif

struct amd64_set_pkru {
        void *addr;
        unsigned long len;
        unsigned int keyidx;
        int flags;
};

#ifndef _KERNEL
union descriptor;
struct dbreg;

__BEGIN_DECLS
int i386_get_ldt(int, union descriptor *, int);
int i386_set_ldt(int, union descriptor *, int);
int i386_get_ioperm(unsigned int, unsigned int *, int *);
int i386_set_ioperm(unsigned int, unsigned int, int);
int i386_vm86(int, void *);
int i386_get_fsbase(void **);
int i386_get_gsbase(void **);
int i386_set_fsbase(void *);
int i386_set_gsbase(void *);
int i386_set_watch(int, unsigned int, int, int, struct dbreg *);
int i386_clr_watch(int, struct dbreg *);
int amd64_get_fsbase(void **);
int amd64_get_gsbase(void **);
int amd64_set_fsbase(void *);
int amd64_set_gsbase(void *);
int amd64_set_tlsbase(void *);
int x86_pkru_get_perm(unsigned int keyidx, int *access, int *modify);
int x86_pkru_set_perm(unsigned int keyidx, int access, int modify);
int x86_pkru_protect_range(void *addr, unsigned long len, unsigned int keyidx,
    int flag);
int x86_pkru_unprotect_range(void *addr, unsigned long len);
int sysarch(int, void *);
__END_DECLS
#else
struct thread;
union descriptor;

int i386_get_ldt(struct thread *, struct i386_ldt_args *);
int i386_set_ldt(struct thread *, struct i386_ldt_args *, union descriptor *);
int i386_get_ioperm(struct thread *, struct i386_ioperm_args *);
int i386_set_ioperm(struct thread *, struct i386_ioperm_args *);
int amd64_get_ldt(struct thread *, struct i386_ldt_args *);
int amd64_set_ldt(struct thread *, struct i386_ldt_args *,
    struct user_segment_descriptor *);
int amd64_get_ioperm(struct thread *, struct i386_ioperm_args *);
int amd64_set_ioperm(struct thread *, struct i386_ioperm_args *);
#endif

#endif /* !_MACHINE_SYSARCH_H_ */