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/*-
* 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.
* 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
* $FreeBSD$
*/
#ifndef _MACHINE_TSS_H_
#define _MACHINE_TSS_H_ 1
/*
* amd64 Context Data Type
*
* The alignment is pretty messed up here due to reuse of the original 32 bit
* fields. It might be worth trying to set the tss on a +4 byte offset to
* make the 64 bit fields aligned in practice.
*/
struct amd64tss {
u_int32_t tss_rsvd0;
u_int64_t tss_rsp0 __packed; /* kernel stack pointer ring 0 */
u_int64_t tss_rsp1 __packed; /* kernel stack pointer ring 1 */
u_int64_t tss_rsp2 __packed; /* kernel stack pointer ring 2 */
u_int32_t tss_rsvd1;
u_int32_t tss_rsvd2;
u_int64_t tss_ist1 __packed; /* Interrupt stack table 1 */
u_int64_t tss_ist2 __packed; /* Interrupt stack table 2 */
u_int64_t tss_ist3 __packed; /* Interrupt stack table 3 */
u_int64_t tss_ist4 __packed; /* Interrupt stack table 4 */
u_int64_t tss_ist5 __packed; /* Interrupt stack table 5 */
u_int64_t tss_ist6 __packed; /* Interrupt stack table 6 */
u_int64_t tss_ist7 __packed; /* Interrupt stack table 7 */
u_int32_t tss_rsvd3;
u_int32_t tss_rsvd4;
u_int16_t tss_rsvd5;
u_int16_t tss_iobase; /* io bitmap offset */
};
#ifdef _KERNEL
extern struct amd64tss common_tss[];
#endif
#endif /* _MACHINE_TSS_H_ */
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