xref: /illumos-gate/usr/src/boot/sys/amd64/include/tss.h (revision 9c8f3233)
1*9c8f3233SToomas Soome /*-
2*9c8f3233SToomas Soome  * Copyright (c) 1990 The Regents of the University of California.
3*9c8f3233SToomas Soome  * All rights reserved.
4*9c8f3233SToomas Soome  *
5*9c8f3233SToomas Soome  * This code is derived from software contributed to Berkeley by
6*9c8f3233SToomas Soome  * William Jolitz.
7*9c8f3233SToomas Soome  *
8*9c8f3233SToomas Soome  * Redistribution and use in source and binary forms, with or without
9*9c8f3233SToomas Soome  * modification, are permitted provided that the following conditions
10*9c8f3233SToomas Soome  * are met:
11*9c8f3233SToomas Soome  * 1. Redistributions of source code must retain the above copyright
12*9c8f3233SToomas Soome  *    notice, this list of conditions and the following disclaimer.
13*9c8f3233SToomas Soome  * 2. Redistributions in binary form must reproduce the above copyright
14*9c8f3233SToomas Soome  *    notice, this list of conditions and the following disclaimer in the
15*9c8f3233SToomas Soome  *    documentation and/or other materials provided with the distribution.
16*9c8f3233SToomas Soome  * 3. Neither the name of the University nor the names of its contributors
17*9c8f3233SToomas Soome  *    may be used to endorse or promote products derived from this software
18*9c8f3233SToomas Soome  *    without specific prior written permission.
19*9c8f3233SToomas Soome  *
20*9c8f3233SToomas Soome  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21*9c8f3233SToomas Soome  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22*9c8f3233SToomas Soome  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23*9c8f3233SToomas Soome  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24*9c8f3233SToomas Soome  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25*9c8f3233SToomas Soome  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26*9c8f3233SToomas Soome  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27*9c8f3233SToomas Soome  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28*9c8f3233SToomas Soome  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29*9c8f3233SToomas Soome  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30*9c8f3233SToomas Soome  * SUCH DAMAGE.
31*9c8f3233SToomas Soome  *
32*9c8f3233SToomas Soome  *	from: @(#)tss.h	5.4 (Berkeley) 1/18/91
33*9c8f3233SToomas Soome  */
34*9c8f3233SToomas Soome 
35*9c8f3233SToomas Soome #ifndef _MACHINE_TSS_H_
36*9c8f3233SToomas Soome #define _MACHINE_TSS_H_ 1
37*9c8f3233SToomas Soome 
38*9c8f3233SToomas Soome /*
39*9c8f3233SToomas Soome  * amd64 Context Data Type
40*9c8f3233SToomas Soome  *
41*9c8f3233SToomas Soome  * The alignment is pretty messed up here due to reuse of the original 32 bit
42*9c8f3233SToomas Soome  * fields.  It might be worth trying to set the tss on a +4 byte offset to
43*9c8f3233SToomas Soome  * make the 64 bit fields aligned in practice.
44*9c8f3233SToomas Soome  */
45*9c8f3233SToomas Soome struct amd64tss {
46*9c8f3233SToomas Soome 	u_int32_t	tss_rsvd0;
47*9c8f3233SToomas Soome 	u_int64_t	tss_rsp0 __packed;	/* kernel stack pointer ring 0 */
48*9c8f3233SToomas Soome 	u_int64_t	tss_rsp1 __packed;	/* kernel stack pointer ring 1 */
49*9c8f3233SToomas Soome 	u_int64_t	tss_rsp2 __packed;	/* kernel stack pointer ring 2 */
50*9c8f3233SToomas Soome 	u_int32_t	tss_rsvd1;
51*9c8f3233SToomas Soome 	u_int32_t	tss_rsvd2;
52*9c8f3233SToomas Soome 	u_int64_t	tss_ist1 __packed;	/* Interrupt stack table 1 */
53*9c8f3233SToomas Soome 	u_int64_t	tss_ist2 __packed;	/* Interrupt stack table 2 */
54*9c8f3233SToomas Soome 	u_int64_t	tss_ist3 __packed;	/* Interrupt stack table 3 */
55*9c8f3233SToomas Soome 	u_int64_t	tss_ist4 __packed;	/* Interrupt stack table 4 */
56*9c8f3233SToomas Soome 	u_int64_t	tss_ist5 __packed;	/* Interrupt stack table 5 */
57*9c8f3233SToomas Soome 	u_int64_t	tss_ist6 __packed;	/* Interrupt stack table 6 */
58*9c8f3233SToomas Soome 	u_int64_t	tss_ist7 __packed;	/* Interrupt stack table 7 */
59*9c8f3233SToomas Soome 	u_int32_t	tss_rsvd3;
60*9c8f3233SToomas Soome 	u_int32_t	tss_rsvd4;
61*9c8f3233SToomas Soome 	u_int16_t	tss_rsvd5;
62*9c8f3233SToomas Soome 	u_int16_t	tss_iobase;	/* io bitmap offset */
63*9c8f3233SToomas Soome };
64*9c8f3233SToomas Soome 
65*9c8f3233SToomas Soome #ifdef _KERNEL
66*9c8f3233SToomas Soome extern struct amd64tss common_tss[];
67*9c8f3233SToomas Soome #endif
68*9c8f3233SToomas Soome 
69*9c8f3233SToomas Soome #endif /* _MACHINE_TSS_H_ */
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