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/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_TSS_H
#define _SYS_TSS_H
#ifdef __cplusplus
extern "C" {
#endif
/* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
/* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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 University of
* California, Berkeley and its contributors.
* 4. 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.
*
* from: @(#)tss.h 5.4 (Berkeley) 1/18/91
* $FreeBSD: src/sys/i386/include/tss.h,v 1.13 2002/09/23 05:04:05 peter Exp $
*/
/*
* Copyright 2011 Joyent, Inc. All rights reserved.
*/
/*
* Maximum I/O address that will be in TSS bitmap
*/
#define MAXTSSIOADDR 0x3ff /* XXX - needs to support 64K I/O space */
#ifndef _ASM
/*
* Task state segment (tss). Holds the processor state assoicated with a task.
*
* Historically, this header only exposed a struct tss that was relevant to the
* specific Intel architecture that we were deploying on. However, the tss
* structures are defined by the Intel Architecture and other consumers would
* like to use them. Rather than requiring them to duplicate all of this
* information, we instead expose each version under different names but in a
* backwards compatible manner.
*/
#pragma pack(4)
struct tss64 {
uint32_t tss_rsvd0; /* reserved, ignored */
uint64_t tss_rsp0; /* stack pointer CPL = 0 */
uint64_t tss_rsp1; /* stack pointer CPL = 1 */
uint64_t tss_rsp2; /* stack pointer CPL = 2 */
uint64_t tss_rsvd1; /* reserved, ignored */
uint64_t tss_ist1; /* Interrupt stack table 1 */
uint64_t tss_ist2; /* Interrupt stack table 2 */
uint64_t tss_ist3; /* Interrupt stack table 3 */
uint64_t tss_ist4; /* Interrupt stack table 4 */
uint64_t tss_ist5; /* Interrupt stack table 5 */
uint64_t tss_ist6; /* Interrupt stack table 6 */
uint64_t tss_ist7; /* Interrupt stack table 7 */
uint64_t tss_rsvd2; /* reserved, ignored */
uint16_t tss_rsvd3; /* reserved, ignored */
uint16_t tss_bitmapbase; /* io permission bitmap base address */
};
#pragma pack()
struct tss32 {
uint16_t tss_link; /* 16-bit prior TSS selector */
uint16_t tss_rsvd0; /* reserved, ignored */
uint32_t tss_esp0;
uint16_t tss_ss0;
uint16_t tss_rsvd1; /* reserved, ignored */
uint32_t tss_esp1;
uint16_t tss_ss1;
uint16_t tss_rsvd2; /* reserved, ignored */
uint32_t tss_esp2;
uint16_t tss_ss2;
uint16_t tss_rsvd3; /* reserved, ignored */
uint32_t tss_cr3;
uint32_t tss_eip;
uint32_t tss_eflags;
uint32_t tss_eax;
uint32_t tss_ecx;
uint32_t tss_edx;
uint32_t tss_ebx;
uint32_t tss_esp;
uint32_t tss_ebp;
uint32_t tss_esi;
uint32_t tss_edi;
uint16_t tss_es;
uint16_t tss_rsvd4; /* reserved, ignored */
uint16_t tss_cs;
uint16_t tss_rsvd5; /* reserved, ignored */
uint16_t tss_ss;
uint16_t tss_rsvd6; /* reserved, ignored */
uint16_t tss_ds;
uint16_t tss_rsvd7; /* reserved, ignored */
uint16_t tss_fs;
uint16_t tss_rsvd8; /* reserved, ignored */
uint16_t tss_gs;
uint16_t tss_rsvd9; /* reserved, ignored */
uint16_t tss_ldt;
uint16_t tss_rsvd10; /* reserved, ignored */
uint16_t tss_rsvd11; /* reserved, ignored */
uint16_t tss_bitmapbase; /* io permission bitmap base address */
};
struct tss16 {
uint16_t tss_link;
uint16_t tss_sp0;
uint16_t tss_ss0;
uint16_t tss_sp1;
uint16_t tss_ss1;
uint16_t tss_sp2;
uint16_t tss_ss2;
uint16_t tss_ip;
uint16_t tss_flag;
uint16_t tss_ax;
uint16_t tss_cx;
uint16_t tss_dx;
uint16_t tss_bx;
uint16_t tss_sp;
uint16_t tss_bp;
uint16_t tss_si;
uint16_t tss_di;
uint16_t tss_es;
uint16_t tss_cs;
uint16_t tss_ss;
uint16_t tss_ds;
uint16_t tss_ldt;
};
#if defined(__amd64)
typedef struct tss64 tss_t;
#elif defined(__i386)
typedef struct tss32 tss_t;
#endif /* __i386 */
#endif /* !_ASM */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_TSS_H */
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