1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * from: @(#)pcb.h 5.10 (Berkeley) 5/12/91
| 1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * from: @(#)pcb.h 5.10 (Berkeley) 5/12/91
|
34 */
35
36#ifndef _I386_PCB_H_
37#define _I386_PCB_H_
38
39/*
40 * Intel 386 process control block
41 */
42#ifndef _KERNEL
43#include <machine/segments.h>
44#endif
45#include <machine/npx.h>
46
47struct pcb {
48 int pcb_cr0;
49 int pcb_cr2;
50 int pcb_cr3;
51 int pcb_cr4;
52 int pcb_edi;
53 int pcb_esi;
54 int pcb_ebp;
55 int pcb_esp;
56 int pcb_ebx;
57 int pcb_eip;
58
59 int pcb_dr0;
60 int pcb_dr1;
61 int pcb_dr2;
62 int pcb_dr3;
63 int pcb_dr6;
64 int pcb_dr7;
65
66 union savefpu pcb_user_save;
67 uint16_t pcb_initial_npxcw;
68 u_int pcb_flags;
69#define FP_SOFTFP 0x01 /* process using software fltng pnt emulator */
70#define PCB_DBREGS 0x02 /* process using debug registers */
71#define PCB_NPXINITDONE 0x08 /* fpu state is initialized */
72#define PCB_VM86CALL 0x10 /* in vm86 call */
73#define PCB_NPXUSERINITDONE 0x20 /* user fpu state is initialized */
74#define PCB_KERNNPX 0x40 /* kernel uses npx */
75
76 caddr_t pcb_onfault; /* copyin/out fault recovery */
77 int pcb_ds;
78 int pcb_es;
79 int pcb_fs;
80 int pcb_gs;
81 int pcb_ss;
82 struct segment_descriptor pcb_fsd;
83 struct segment_descriptor pcb_gsd;
84 struct pcb_ext *pcb_ext; /* optional pcb extension */
85 int pcb_psl; /* process status long */
86 u_long pcb_vm86[2]; /* vm86bios scratch space */
87 union savefpu *pcb_save;
88
89 struct region_descriptor pcb_gdt;
90 struct region_descriptor pcb_idt;
91 uint16_t pcb_ldt;
92 uint16_t pcb_tr;
| 34 */
35
36#ifndef _I386_PCB_H_
37#define _I386_PCB_H_
38
39/*
40 * Intel 386 process control block
41 */
42#ifndef _KERNEL
43#include <machine/segments.h>
44#endif
45#include <machine/npx.h>
46
47struct pcb {
48 int pcb_cr0;
49 int pcb_cr2;
50 int pcb_cr3;
51 int pcb_cr4;
52 int pcb_edi;
53 int pcb_esi;
54 int pcb_ebp;
55 int pcb_esp;
56 int pcb_ebx;
57 int pcb_eip;
58
59 int pcb_dr0;
60 int pcb_dr1;
61 int pcb_dr2;
62 int pcb_dr3;
63 int pcb_dr6;
64 int pcb_dr7;
65
66 union savefpu pcb_user_save;
67 uint16_t pcb_initial_npxcw;
68 u_int pcb_flags;
69#define FP_SOFTFP 0x01 /* process using software fltng pnt emulator */
70#define PCB_DBREGS 0x02 /* process using debug registers */
71#define PCB_NPXINITDONE 0x08 /* fpu state is initialized */
72#define PCB_VM86CALL 0x10 /* in vm86 call */
73#define PCB_NPXUSERINITDONE 0x20 /* user fpu state is initialized */
74#define PCB_KERNNPX 0x40 /* kernel uses npx */
75
76 caddr_t pcb_onfault; /* copyin/out fault recovery */
77 int pcb_ds;
78 int pcb_es;
79 int pcb_fs;
80 int pcb_gs;
81 int pcb_ss;
82 struct segment_descriptor pcb_fsd;
83 struct segment_descriptor pcb_gsd;
84 struct pcb_ext *pcb_ext; /* optional pcb extension */
85 int pcb_psl; /* process status long */
86 u_long pcb_vm86[2]; /* vm86bios scratch space */
87 union savefpu *pcb_save;
88
89 struct region_descriptor pcb_gdt;
90 struct region_descriptor pcb_idt;
91 uint16_t pcb_ldt;
92 uint16_t pcb_tr;
|
93};
94
95#ifdef _KERNEL
96struct trapframe;
97
98void makectx(struct trapframe *, struct pcb *);
99int savectx(struct pcb *) __returns_twice;
100void resumectx(struct pcb *) __fastcall;
101#endif
102
103#endif /* _I386_PCB_H_ */
| 95};
96
97#ifdef _KERNEL
98struct trapframe;
99
100void makectx(struct trapframe *, struct pcb *);
101int savectx(struct pcb *) __returns_twice;
102void resumectx(struct pcb *) __fastcall;
103#endif
104
105#endif /* _I386_PCB_H_ */
|