/* * 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 */
