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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup amd64 |
29 | /** @addtogroup amd64 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef __amd64_PM_H__ |
35 | #ifndef __amd64_PM_H__ |
36 | #define __amd64_PM_H__ |
36 | #define __amd64_PM_H__ |
37 | 37 | ||
38 | #ifndef __ASM__ |
38 | #ifndef __ASM__ |
39 | # include <arch/types.h> |
39 | # include <arch/types.h> |
40 | # include <typedefs.h> |
40 | # include <typedefs.h> |
41 | # include <arch/context.h> |
41 | # include <arch/context.h> |
42 | #endif |
42 | #endif |
43 | 43 | ||
44 | #define IDT_ITEMS 64 |
44 | #define IDT_ITEMS 64 |
45 | #define GDT_ITEMS 8 |
45 | #define GDT_ITEMS 8 |
46 | 46 | ||
47 | 47 | ||
48 | #define NULL_DES 0 |
48 | #define NULL_DES 0 |
49 | /* Warning: Do not reorder next items, unless you look into syscall.c!!! */ |
49 | /* Warning: Do not reorder next items, unless you look into syscall.c!!! */ |
50 | #define KTEXT_DES 1 |
50 | #define KTEXT_DES 1 |
51 | #define KDATA_DES 2 |
51 | #define KDATA_DES 2 |
52 | #define UDATA_DES 3 |
52 | #define UDATA_DES 3 |
53 | #define UTEXT_DES 4 |
53 | #define UTEXT_DES 4 |
54 | #define KTEXT32_DES 5 |
54 | #define KTEXT32_DES 5 |
55 | /* EndOfWarning */ |
55 | /* EndOfWarning */ |
56 | #define TSS_DES 6 |
56 | #define TSS_DES 6 |
57 | 57 | ||
58 | 58 | ||
59 | 59 | ||
60 | #ifdef CONFIG_FB |
60 | #ifdef CONFIG_FB |
61 | 61 | ||
62 | #define VESA_INIT_DES 8 |
62 | #define VESA_INIT_DES 8 |
63 | #define VESA_INIT_SEGMENT 0x8000 |
63 | #define VESA_INIT_SEGMENT 0x8000 |
64 | #undef GDT_ITEMS |
64 | #undef GDT_ITEMS |
65 | #define GDT_ITEMS 9 |
65 | #define GDT_ITEMS 9 |
66 | 66 | ||
67 | #endif /*CONFIG_FB*/ |
67 | #endif /*CONFIG_FB*/ |
68 | 68 | ||
69 | 69 | ||
70 | 70 | ||
71 | #define gdtselector(des) ((des)<<3) |
71 | #define gdtselector(des) ((des)<<3) |
72 | #define idtselector(des) ((des)<<4) |
72 | #define idtselector(des) ((des)<<4) |
73 | 73 | ||
74 | #define PL_KERNEL 0 |
74 | #define PL_KERNEL 0 |
75 | #define PL_USER 3 |
75 | #define PL_USER 3 |
76 | 76 | ||
77 | #define AR_PRESENT (1<<7) |
77 | #define AR_PRESENT (1<<7) |
78 | #define AR_DATA (2<<3) |
78 | #define AR_DATA (2<<3) |
79 | #define AR_CODE (3<<3) |
79 | #define AR_CODE (3<<3) |
80 | #define AR_WRITABLE (1<<1) |
80 | #define AR_WRITABLE (1<<1) |
81 | #define AR_READABLE (1<<1) |
81 | #define AR_READABLE (1<<1) |
82 | #define AR_TSS (0x9) |
82 | #define AR_TSS (0x9) |
83 | #define AR_INTERRUPT (0xe) |
83 | #define AR_INTERRUPT (0xe) |
84 | #define AR_TRAP (0xf) |
84 | #define AR_TRAP (0xf) |
85 | 85 | ||
86 | #define DPL_KERNEL (PL_KERNEL<<5) |
86 | #define DPL_KERNEL (PL_KERNEL<<5) |
87 | #define DPL_USER (PL_USER<<5) |
87 | #define DPL_USER (PL_USER<<5) |
88 | 88 | ||
89 | #define TSS_BASIC_SIZE 104 |
89 | #define TSS_BASIC_SIZE 104 |
90 | #define TSS_IOMAP_SIZE (16*1024+1) /* 16K for bitmap + 1 terminating byte for convenience */ |
90 | #define TSS_IOMAP_SIZE (16*1024+1) /* 16K for bitmap + 1 terminating byte for convenience */ |
91 | 91 | ||
92 | #define IO_PORTS (64*1024) |
92 | #define IO_PORTS (64*1024) |
93 | 93 | ||
94 | #ifndef __ASM__ |
94 | #ifndef __ASM__ |
95 | 95 | ||
96 | struct descriptor { |
96 | struct descriptor { |
97 | unsigned limit_0_15: 16; |
97 | unsigned limit_0_15: 16; |
98 | unsigned base_0_15: 16; |
98 | unsigned base_0_15: 16; |
99 | unsigned base_16_23: 8; |
99 | unsigned base_16_23: 8; |
100 | unsigned access: 8; |
100 | unsigned access: 8; |
101 | unsigned limit_16_19: 4; |
101 | unsigned limit_16_19: 4; |
102 | unsigned available: 1; |
102 | unsigned available: 1; |
103 | unsigned longmode: 1; |
103 | unsigned longmode: 1; |
104 | unsigned special: 1; |
104 | unsigned special: 1; |
105 | unsigned granularity : 1; |
105 | unsigned granularity : 1; |
106 | unsigned base_24_31: 8; |
106 | unsigned base_24_31: 8; |
107 | } __attribute__ ((packed)); |
107 | } __attribute__ ((packed)); |
108 | typedef struct descriptor descriptor_t; |
108 | typedef struct descriptor descriptor_t; |
109 | 109 | ||
110 | struct tss_descriptor { |
110 | struct tss_descriptor { |
111 | unsigned limit_0_15: 16; |
111 | unsigned limit_0_15: 16; |
112 | unsigned base_0_15: 16; |
112 | unsigned base_0_15: 16; |
113 | unsigned base_16_23: 8; |
113 | unsigned base_16_23: 8; |
114 | unsigned type: 4; |
114 | unsigned type: 4; |
115 | unsigned : 1; |
115 | unsigned : 1; |
116 | unsigned dpl : 2; |
116 | unsigned dpl : 2; |
117 | unsigned present : 1; |
117 | unsigned present : 1; |
118 | unsigned limit_16_19: 4; |
118 | unsigned limit_16_19: 4; |
119 | unsigned available: 1; |
119 | unsigned available: 1; |
120 | unsigned : 2; |
120 | unsigned : 2; |
121 | unsigned granularity : 1; |
121 | unsigned granularity : 1; |
122 | unsigned base_24_31: 8; |
122 | unsigned base_24_31: 8; |
123 | unsigned base_32_63 : 32; |
123 | unsigned base_32_63 : 32; |
124 | unsigned : 32; |
124 | unsigned : 32; |
125 | } __attribute__ ((packed)); |
125 | } __attribute__ ((packed)); |
126 | typedef struct tss_descriptor tss_descriptor_t; |
126 | typedef struct tss_descriptor tss_descriptor_t; |
127 | 127 | ||
128 | struct idescriptor { |
128 | struct idescriptor { |
129 | unsigned offset_0_15: 16; |
129 | unsigned offset_0_15: 16; |
130 | unsigned selector: 16; |
130 | unsigned selector: 16; |
131 | unsigned ist:3; |
131 | unsigned ist:3; |
132 | unsigned unused: 5; |
132 | unsigned unused: 5; |
133 | unsigned type: 5; |
133 | unsigned type: 5; |
134 | unsigned dpl: 2; |
134 | unsigned dpl: 2; |
135 | unsigned present : 1; |
135 | unsigned present : 1; |
136 | unsigned offset_16_31: 16; |
136 | unsigned offset_16_31: 16; |
137 | unsigned offset_32_63: 32; |
137 | unsigned offset_32_63: 32; |
138 | unsigned : 32; |
138 | unsigned : 32; |
139 | } __attribute__ ((packed)); |
139 | } __attribute__ ((packed)); |
140 | typedef struct idescriptor idescriptor_t; |
140 | typedef struct idescriptor idescriptor_t; |
141 | 141 | ||
142 | struct ptr_16_64 { |
142 | struct ptr_16_64 { |
143 | __u16 limit; |
143 | uint16_t limit; |
144 | __u64 base; |
144 | uint64_t base; |
145 | } __attribute__ ((packed)); |
145 | } __attribute__ ((packed)); |
146 | typedef struct ptr_16_64 ptr_16_64_t; |
146 | typedef struct ptr_16_64 ptr_16_64_t; |
147 | 147 | ||
148 | struct ptr_16_32 { |
148 | struct ptr_16_32 { |
149 | __u16 limit; |
149 | uint16_t limit; |
150 | __u32 base; |
150 | uint32_t base; |
151 | } __attribute__ ((packed)); |
151 | } __attribute__ ((packed)); |
152 | typedef struct ptr_16_32 ptr_16_32_t; |
152 | typedef struct ptr_16_32 ptr_16_32_t; |
153 | 153 | ||
154 | struct tss { |
154 | struct tss { |
155 | __u32 reserve1; |
155 | uint32_t reserve1; |
156 | __u64 rsp0; |
156 | uint64_t rsp0; |
157 | __u64 rsp1; |
157 | uint64_t rsp1; |
158 | __u64 rsp2; |
158 | uint64_t rsp2; |
159 | __u64 reserve2; |
159 | uint64_t reserve2; |
160 | __u64 ist1; |
160 | uint64_t ist1; |
161 | __u64 ist2; |
161 | uint64_t ist2; |
162 | __u64 ist3; |
162 | uint64_t ist3; |
163 | __u64 ist4; |
163 | uint64_t ist4; |
164 | __u64 ist5; |
164 | uint64_t ist5; |
165 | __u64 ist6; |
165 | uint64_t ist6; |
166 | __u64 ist7; |
166 | uint64_t ist7; |
167 | __u64 reserve3; |
167 | uint64_t reserve3; |
168 | __u16 reserve4; |
168 | uint16_t reserve4; |
169 | __u16 iomap_base; |
169 | uint16_t iomap_base; |
170 | __u8 iomap[TSS_IOMAP_SIZE]; |
170 | uint8_t iomap[TSS_IOMAP_SIZE]; |
171 | } __attribute__ ((packed)); |
171 | } __attribute__ ((packed)); |
172 | typedef struct tss tss_t; |
172 | typedef struct tss tss_t; |
173 | 173 | ||
174 | extern tss_t *tss_p; |
174 | extern tss_t *tss_p; |
175 | 175 | ||
176 | extern descriptor_t gdt[]; |
176 | extern descriptor_t gdt[]; |
177 | extern idescriptor_t idt[]; |
177 | extern idescriptor_t idt[]; |
178 | 178 | ||
179 | extern ptr_16_64_t gdtr; |
179 | extern ptr_16_64_t gdtr; |
180 | extern ptr_16_32_t bootstrap_gdtr; |
180 | extern ptr_16_32_t bootstrap_gdtr; |
181 | extern ptr_16_32_t protected_ap_gdtr; |
181 | extern ptr_16_32_t protected_ap_gdtr; |
182 | 182 | ||
183 | extern void pm_init(void); |
183 | extern void pm_init(void); |
184 | 184 | ||
185 | extern void gdt_tss_setbase(descriptor_t *d, __address base); |
185 | extern void gdt_tss_setbase(descriptor_t *d, uintptr_t base); |
186 | extern void gdt_tss_setlimit(descriptor_t *d, __u32 limit); |
186 | extern void gdt_tss_setlimit(descriptor_t *d, uint32_t limit); |
187 | 187 | ||
188 | extern void idt_init(void); |
188 | extern void idt_init(void); |
189 | extern void idt_setoffset(idescriptor_t *d, __address offset); |
189 | extern void idt_setoffset(idescriptor_t *d, uintptr_t offset); |
190 | 190 | ||
191 | extern void tss_initialize(tss_t *t); |
191 | extern void tss_initialize(tss_t *t); |
192 | 192 | ||
193 | #endif /* __ASM__ */ |
193 | #endif /* __ASM__ */ |
194 | 194 | ||
195 | #endif |
195 | #endif |
196 | 196 | ||
197 | /** @} |
197 | /** @} |
198 | */ |
198 | */ |
199 | 199 | ||
200 | 200 |