/*- * SPDX-License-Identifier: BSD-3-Clause * * 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. 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 */ }; #endif /* _MACHINE_TSS_H_ */ |