1 /*-
2 * Copyright (c) 2003 Peter Wemm.
3 * Copyright (c) 1990 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * William Jolitz.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * from: @(#)pcb.h 5.10 (Berkeley) 5/12/91
34 * $FreeBSD: src/sys/amd64/include/pcb.h,v 1.66 2008/09/08 09:59:05 kib Exp $
35 */
36
37 #ifndef _AMD64_PCB_H_
38 #define _AMD64_PCB_H_
39
40 /*
41 * AMD64 process control block
42 */
43 #include <machine/fpu.h>
44 #include <machine/segments.h>
45
46 struct pcb {
47 register_t pcb_cr3;
48 register_t pcb_r15;
49 register_t pcb_r14;
50 register_t pcb_r13;
51 register_t pcb_r12;
52 register_t pcb_rbp;
53 register_t pcb_rsp;
54 register_t pcb_rbx;
55 register_t pcb_rip;
56 register_t pcb_fsbase;
57 register_t pcb_gsbase;
58 u_long pcb_flags;
59 u_int32_t pcb_ds;
60 u_int32_t pcb_es;
61 u_int32_t pcb_fs;
62 u_int32_t pcb_gs;
63 u_int64_t pcb_dr0;
64 u_int64_t pcb_dr1;
65 u_int64_t pcb_dr2;
66 u_int64_t pcb_dr3;
67 u_int64_t pcb_dr6;
68 u_int64_t pcb_dr7;
69
70 struct savefpu pcb_save;
71 #define PCB_DBREGS 0x02 /* process using debug registers */
72 #define PCB_FPUINITDONE 0x08 /* fpu state is initialized */
73 #define PCB_GS32BIT 0x20 /* linux gs switch */
74 #define PCB_32BIT 0x40 /* process has 32 bit context (segs etc) */
75 #define PCB_FULLCTX 0x80 /* full context restore on sysret */
76
77 caddr_t pcb_onfault; /* copyin/out fault recovery */
78
79 /* 32-bit segment descriptor */
80 struct user_segment_descriptor pcb_gs32sd;
81 };
82
83 #ifdef _KERNEL
84 struct trapframe;
85
86 void makectx(struct trapframe *, struct pcb *);
87 void savectx(struct pcb *);
88 #endif
89
90 #endif /* _AMD64_PCB_H_ */
91 Cache object: 3e005f2005240465f26565f53764d4a6
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