source: mainline/arch/amd64/include/pm.h@ 42edee68

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 42edee68 was 42edee68, checked in by Martin Decky <martin@…>, 19 years ago

AMD64 SMP boots again
  • Property mode set to 100644
File size: 4.0 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#define KTEXT_DES 1
43#define KDATA_DES 2
44#define UTEXT_DES 3
45#define UDATA_DES 4
46#define KTEXT32_DES 5
47#define TSS_DES 6
48
49#define gdtselector(des) ((des)<<3)
50#define idtselector(des) ((des)<<4)
51
52#define PL_KERNEL 0
53#define PL_USER 3
54
55#define AR_PRESENT (1<<7)
56#define AR_DATA (2<<3)
57#define AR_CODE (3<<3)
58#define AR_WRITABLE (1<<1)
59#define AR_READABLE (1<<1)
60#define AR_TSS (0x9)
61#define AR_INTERRUPT (0xe)
62#define AR_TRAP (0xf)
63
64#define DPL_KERNEL (PL_KERNEL<<5)
65#define DPL_USER (PL_USER<<5)
66
67#define IO_MAP_BASE (104)
68
69#ifndef __ASM__
70
71struct descriptor {
72 unsigned limit_0_15: 16;
73 unsigned base_0_15: 16;
74 unsigned base_16_23: 8;
75 unsigned access: 8;
76 unsigned limit_16_19: 4;
77 unsigned available: 1;
78 unsigned longmode: 1;
79 unsigned special: 1;
80 unsigned granularity : 1;
81 unsigned base_24_31: 8;
82} __attribute__ ((packed));
83
84struct tss_descriptor {
85 unsigned limit_0_15: 16;
86 unsigned base_0_15: 16;
87 unsigned base_16_23: 8;
88 unsigned type: 4;
89 unsigned : 1;
90 unsigned dpl : 2;
91 unsigned present : 1;
92 unsigned limit_16_19: 4;
93 unsigned available: 1;
94 unsigned : 2;
95 unsigned granularity : 1;
96 unsigned base_24_31: 8;
97 unsigned base_32_63 : 32;
98 unsigned : 32;
99} __attribute__ ((packed));
100
101struct idescriptor {
102 unsigned offset_0_15: 16;
103 unsigned selector: 16;
104 unsigned ist:3;
105 unsigned unused: 5;
106 unsigned type: 5;
107 unsigned dpl: 2;
108 unsigned present : 1;
109 unsigned offset_16_31: 16;
110 unsigned offset_32_63: 32;
111 unsigned : 32;
112} __attribute__ ((packed));
113
114struct ptr_16_64 {
115 __u16 limit;
116 __u64 base;
117} __attribute__ ((packed));
118
119struct ptr_16_32 {
120 __u16 limit;
121 __u32 base;
122} __attribute__ ((packed));
123
124struct tss {
125 __u32 reserve1;
126 __u64 rsp0;
127 __u64 rsp1;
128 __u64 rsp2;
129 __u64 reserve2;
130 __u64 ist1;
131 __u64 ist2;
132 __u64 ist3;
133 __u64 ist4;
134 __u64 ist5;
135 __u64 ist6;
136 __u64 ist7;
137 __u64 reserve3;
138 __u16 reserve4;
139 __u16 iomap;
140} __attribute__ ((packed));
141
142extern struct tss *tss_p;
143
144extern struct descriptor gdt[];
145extern struct idescriptor idt[];
146
147extern struct ptr_16_64 gdtr;
148extern struct ptr_16_32 bootstrap_gdtr;
149extern struct ptr_16_32 protected_ap_gdtr;
150
151extern void pm_init(void);
152
153extern void gdt_tss_setbase(struct descriptor *d, __address base);
154extern void gdt_tss_setlimit(struct descriptor *d, __u32 limit);
155
156extern void idt_init(void);
157extern void idt_setoffset(struct idescriptor *d, __address offset);
158
159extern void tss_initialize(struct tss *t);
160
161#endif /* __ASM__ */
162
163#endif
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