71 lines
2.9 KiB
C
71 lines
2.9 KiB
C
/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)tss.h 5.4 (Berkeley) 1/18/91
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* $FreeBSD$
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*/
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#ifndef _MACHINE_TSS_H_
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#define _MACHINE_TSS_H_ 1
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/*
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* amd64 Context Data Type
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*
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* The alignment is pretty messed up here due to reuse of the original 32 bit
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* fields. It might be worth trying to set the tss on a +4 byte offset to
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* make the 64 bit fields aligned in practice.
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*/
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struct amd64tss {
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u_int32_t tss_rsvd0;
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u_int64_t tss_rsp0 __packed; /* kernel stack pointer ring 0 */
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u_int64_t tss_rsp1 __packed; /* kernel stack pointer ring 1 */
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u_int64_t tss_rsp2 __packed; /* kernel stack pointer ring 2 */
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u_int32_t tss_rsvd1;
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u_int32_t tss_rsvd2;
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u_int64_t tss_ist1 __packed; /* Interrupt stack table 1 */
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u_int64_t tss_ist2 __packed; /* Interrupt stack table 2 */
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u_int64_t tss_ist3 __packed; /* Interrupt stack table 3 */
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u_int64_t tss_ist4 __packed; /* Interrupt stack table 4 */
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u_int64_t tss_ist5 __packed; /* Interrupt stack table 5 */
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u_int64_t tss_ist6 __packed; /* Interrupt stack table 6 */
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u_int64_t tss_ist7 __packed; /* Interrupt stack table 7 */
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u_int32_t tss_rsvd4;
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u_int32_t tss_rsvd5;
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u_int16_t tss_rsvd6;
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u_int16_t tss_iobase; /* io bitmap offset */
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};
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#ifdef _KERNEL
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extern struct amd64tss common_tss[];
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#endif
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#endif /* _MACHINE_TSS_H_ */
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