14Srgrimes/*- 24Srgrimes * Copyright (c) 1990 The Regents of the University of California. 34Srgrimes * All rights reserved. 44Srgrimes * 54Srgrimes * This code is derived from software contributed to Berkeley by 64Srgrimes * William Jolitz. 74Srgrimes * 84Srgrimes * Redistribution and use in source and binary forms, with or without 94Srgrimes * modification, are permitted provided that the following conditions 104Srgrimes * are met: 114Srgrimes * 1. Redistributions of source code must retain the above copyright 124Srgrimes * notice, this list of conditions and the following disclaimer. 134Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 144Srgrimes * notice, this list of conditions and the following disclaimer in the 154Srgrimes * documentation and/or other materials provided with the distribution. 164Srgrimes * 4. Neither the name of the University nor the names of its contributors 174Srgrimes * may be used to endorse or promote products derived from this software 184Srgrimes * without specific prior written permission. 194Srgrimes * 204Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 214Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 224Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 234Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 244Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 254Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 264Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 274Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 284Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 294Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 304Srgrimes * SUCH DAMAGE. 314Srgrimes * 32621Srgrimes * from: @(#)tss.h 5.4 (Berkeley) 1/18/91 3350477Speter * $FreeBSD$ 344Srgrimes */ 354Srgrimes 36719Swollman#ifndef _MACHINE_TSS_H_ 37719Swollman#define _MACHINE_TSS_H_ 1 38719Swollman 394Srgrimes/* 40114349Speter * amd64 Context Data Type 41114349Speter * 42114349Speter * The alignment is pretty messed up here due to reuse of the original 32 bit 43114349Speter * fields. It might be worth trying to set the tss on a +4 byte offset to 44114349Speter * make the 64 bit fields aligned in practice. 454Srgrimes */ 46114349Speterstruct amd64tss { 47114349Speter u_int32_t tss_rsvd0; 48114349Speter u_int64_t tss_rsp0 __packed; /* kernel stack pointer ring 0 */ 49114349Speter u_int64_t tss_rsp1 __packed; /* kernel stack pointer ring 1 */ 50114349Speter u_int64_t tss_rsp2 __packed; /* kernel stack pointer ring 2 */ 51114349Speter u_int32_t tss_rsvd1; 52114349Speter u_int32_t tss_rsvd2; 53114349Speter u_int64_t tss_ist1 __packed; /* Interrupt stack table 1 */ 54114349Speter u_int64_t tss_ist2 __packed; /* Interrupt stack table 2 */ 55114349Speter u_int64_t tss_ist3 __packed; /* Interrupt stack table 3 */ 56114349Speter u_int64_t tss_ist4 __packed; /* Interrupt stack table 4 */ 57114349Speter u_int64_t tss_ist5 __packed; /* Interrupt stack table 5 */ 58114349Speter u_int64_t tss_ist6 __packed; /* Interrupt stack table 6 */ 59114349Speter u_int64_t tss_ist7 __packed; /* Interrupt stack table 7 */ 60145120Speter u_int32_t tss_rsvd3; 61114349Speter u_int32_t tss_rsvd4; 62145120Speter u_int16_t tss_rsvd5; 63114349Speter u_int16_t tss_iobase; /* io bitmap offset */ 644Srgrimes}; 6546129Sluoqi 66114349Speter#ifdef _KERNEL 67122849Speterextern struct amd64tss common_tss[]; 68114349Speter#endif 69114349Speter 70719Swollman#endif /* _MACHINE_TSS_H_ */ 71