source: mainline/arch/amd64/include/pm.h@ dd4d6b0

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since dd4d6b0 was dd4d6b0, checked in by Ondrej Palkovsky <ondrap@…>, 19 years ago

Basic amd syscall support.
  • Property mode set to 100644
File size: 4.1 KB
Line 
1/*
2 * Copyright (C) 2001-2004 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef __amd64_PM_H__
30#define __amd64_PM_H__
31
32#ifndef __ASM__
33# include <arch/types.h>
34# include <typedefs.h>
35# include <arch/context.h>
36#endif
37
38#define IDT_ITEMS 64
39#define GDT_ITEMS 8
40
41#define NULL_DES 0
42/* Warning: Do not reorder next items, unless you look into syscall.c!!! */
43#define KTEXT_DES 1
44#define KDATA_DES 2
45#define UDATA_DES 3
46#define UTEXT_DES 4
47#define KTEXT32_DES 5
48/* EndOfWarning */
49#define TSS_DES 6
50
51#define gdtselector(des) ((des)<<3)
52#define idtselector(des) ((des)<<4)
53
54#define PL_KERNEL 0
55#define PL_USER 3
56
57#define AR_PRESENT (1<<7)
58#define AR_DATA (2<<3)
59#define AR_CODE (3<<3)
60#define AR_WRITABLE (1<<1)
61#define AR_READABLE (1<<1)
62#define AR_TSS (0x9)
63#define AR_INTERRUPT (0xe)
64#define AR_TRAP (0xf)
65
66#define DPL_KERNEL (PL_KERNEL<<5)
67#define DPL_USER (PL_USER<<5)
68
69#define IO_MAP_BASE (104)
70
71#ifndef __ASM__
72
73struct descriptor {
74 unsigned limit_0_15: 16;
75 unsigned base_0_15: 16;
76 unsigned base_16_23: 8;
77 unsigned access: 8;
78 unsigned limit_16_19: 4;
79 unsigned available: 1;
80 unsigned longmode: 1;
81 unsigned special: 1;
82 unsigned granularity : 1;
83 unsigned base_24_31: 8;
84} __attribute__ ((packed));
85
86struct tss_descriptor {
87 unsigned limit_0_15: 16;
88 unsigned base_0_15: 16;
89 unsigned base_16_23: 8;
90 unsigned type: 4;
91 unsigned : 1;
92 unsigned dpl : 2;
93 unsigned present : 1;
94 unsigned limit_16_19: 4;
95 unsigned available: 1;
96 unsigned : 2;
97 unsigned granularity : 1;
98 unsigned base_24_31: 8;
99 unsigned base_32_63 : 32;
100 unsigned : 32;
101} __attribute__ ((packed));
102
103struct idescriptor {
104 unsigned offset_0_15: 16;
105 unsigned selector: 16;
106 unsigned ist:3;
107 unsigned unused: 5;
108 unsigned type: 5;
109 unsigned dpl: 2;
110 unsigned present : 1;
111 unsigned offset_16_31: 16;
112 unsigned offset_32_63: 32;
113 unsigned : 32;
114} __attribute__ ((packed));
115
116struct ptr_16_64 {
117 __u16 limit;
118 __u64 base;
119} __attribute__ ((packed));
120
121struct ptr_16_32 {
122 __u16 limit;
123 __u32 base;
124} __attribute__ ((packed));
125
126struct tss {
127 __u32 reserve1;
128 __u64 rsp0;
129 __u64 rsp1;
130 __u64 rsp2;
131 __u64 reserve2;
132 __u64 ist1;
133 __u64 ist2;
134 __u64 ist3;
135 __u64 ist4;
136 __u64 ist5;
137 __u64 ist6;
138 __u64 ist7;
139 __u64 reserve3;
140 __u16 reserve4;
141 __u16 iomap;
142} __attribute__ ((packed));
143
144extern struct tss *tss_p;
145
146extern struct descriptor gdt[];
147extern struct idescriptor idt[];
148
149extern struct ptr_16_64 gdtr;
150extern struct ptr_16_32 bootstrap_gdtr;
151extern struct ptr_16_32 protected_ap_gdtr;
152
153extern void pm_init(void);
154
155extern void gdt_tss_setbase(struct descriptor *d, __address base);
156extern void gdt_tss_setlimit(struct descriptor *d, __u32 limit);
157
158extern void idt_init(void);
159extern void idt_setoffset(struct idescriptor *d, __address offset);
160
161extern void tss_initialize(struct tss *t);
162
163#endif /* __ASM__ */
164
165#endif
Note: See TracBrowser for help on using the repository browser.