source: mainline/kernel/arch/amd64/include/pm.h@ 3f3afb9

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 3f3afb9 was dc0b964, checked in by Martin Decky <martin@…>, 15 years ago
  • do not hardwire PRI??? formatting macros in the sources, use autotool to detect the correct values
  • use autotool to detect correct values for integer literal macros (UINT32_C, etc.)
  • start using portable UINT??_C style macros for integer constants
  • Property mode set to 100644
File size: 4.5 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/** @addtogroup amd64
30 * @{
31 */
32/** @file
33 */
34
35#ifndef KERN_amd64_PM_H_
36#define KERN_amd64_PM_H_
37
38#ifndef __ASM__
39 #include <typedefs.h>
40 #include <arch/context.h>
41#endif
42
43#define IDT_ITEMS 64
44#define GDT_ITEMS 8
45
46
47#define NULL_DES 0
48/* Warning: Do not reorder the following items, unless you look into syscall.c! */
49#define KTEXT_DES 1
50#define KDATA_DES 2
51#define UDATA_DES 3
52#define UTEXT_DES 4
53#define KTEXT32_DES 5
54/* End of warning */
55#define TSS_DES 6
56
57#ifdef CONFIG_FB
58
59#define VESA_INIT_DES 8
60#define VESA_INIT_SEGMENT 0x8000
61
62#undef GDT_ITEMS
63#define GDT_ITEMS 9
64
65#endif /* CONFIG_FB */
66
67#define GDT_SELECTOR(des) ((des) << 3)
68
69#define PL_KERNEL 0
70#define PL_USER 3
71
72#define AR_PRESENT (1 << 7)
73#define AR_DATA (2 << 3)
74#define AR_CODE (3 << 3)
75#define AR_WRITABLE (1 << 1)
76#define AR_READABLE (1 << 1)
77#define AR_TSS (0x09U)
78#define AR_INTERRUPT (0x0eU)
79#define AR_TRAP (0x0fU)
80
81#define DPL_KERNEL (PL_KERNEL << 5)
82#define DPL_USER (PL_USER << 5)
83
84#define TSS_BASIC_SIZE 104
85#define TSS_IOMAP_SIZE (8 * 1024 + 1) /* 8K for bitmap + 1 terminating byte for convenience */
86
87#define IO_PORTS (64 * 1024)
88
89#ifndef __ASM__
90
91typedef struct {
92 unsigned limit_0_15: 16;
93 unsigned base_0_15: 16;
94 unsigned base_16_23: 8;
95 unsigned access: 8;
96 unsigned limit_16_19: 4;
97 unsigned available: 1;
98 unsigned longmode: 1;
99 unsigned special: 1;
100 unsigned granularity : 1;
101 unsigned base_24_31: 8;
102} __attribute__ ((packed)) descriptor_t;
103
104typedef struct {
105 unsigned limit_0_15: 16;
106 unsigned base_0_15: 16;
107 unsigned base_16_23: 8;
108 unsigned type: 4;
109 unsigned : 1;
110 unsigned dpl : 2;
111 unsigned present : 1;
112 unsigned limit_16_19: 4;
113 unsigned available: 1;
114 unsigned : 2;
115 unsigned granularity : 1;
116 unsigned base_24_31: 8;
117 unsigned base_32_63 : 32;
118 unsigned : 32;
119} __attribute__ ((packed)) tss_descriptor_t;
120
121typedef struct {
122 unsigned offset_0_15: 16;
123 unsigned selector: 16;
124 unsigned ist:3;
125 unsigned unused: 5;
126 unsigned type: 5;
127 unsigned dpl: 2;
128 unsigned present : 1;
129 unsigned offset_16_31: 16;
130 unsigned offset_32_63: 32;
131 unsigned : 32;
132} __attribute__ ((packed)) idescriptor_t;
133
134typedef struct {
135 uint16_t limit;
136 uint64_t base;
137} __attribute__ ((packed)) ptr_16_64_t;
138
139typedef struct {
140 uint16_t limit;
141 uint32_t base;
142} __attribute__ ((packed)) ptr_16_32_t;
143
144typedef struct {
145 uint32_t reserve1;
146 uint64_t rsp0;
147 uint64_t rsp1;
148 uint64_t rsp2;
149 uint64_t reserve2;
150 uint64_t ist1;
151 uint64_t ist2;
152 uint64_t ist3;
153 uint64_t ist4;
154 uint64_t ist5;
155 uint64_t ist6;
156 uint64_t ist7;
157 uint64_t reserve3;
158 uint16_t reserve4;
159 uint16_t iomap_base;
160 uint8_t iomap[TSS_IOMAP_SIZE];
161} __attribute__ ((packed)) tss_t;
162
163extern tss_t *tss_p;
164
165extern descriptor_t gdt[];
166extern idescriptor_t idt[];
167
168extern ptr_16_64_t gdtr;
169extern ptr_16_32_t protected_ap_gdtr;
170
171extern void pm_init(void);
172
173extern void gdt_tss_setbase(descriptor_t *d, uintptr_t base);
174extern void gdt_tss_setlimit(descriptor_t *d, uint32_t limit);
175
176extern void idt_init(void);
177extern void idt_setoffset(idescriptor_t *d, uintptr_t offset);
178
179extern void tss_initialize(tss_t *t);
180
181#endif /* __ASM__ */
182
183#endif
184
185/** @}
186 */
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