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1 | /* |
1 | /* |
2 | * Copyright (C) 2006 Martin Decky |
2 | * Copyright (c) 2006 Martin Decky |
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 ia32xen |
29 | /** @addtogroup ia32xen |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef KERN_ia32xen_PM_H_ |
35 | #ifndef KERN_ia32xen_PM_H_ |
36 | #define KERN_ia32xen_PM_H_ |
36 | #define KERN_ia32xen_PM_H_ |
37 | 37 | ||
38 | #define IDT_ITEMS 64 |
38 | #define IDT_ITEMS 64 |
39 | #define GDT_ITEMS 7 |
39 | #define GDT_ITEMS 7 |
40 | 40 | ||
41 | #define NULL_DES 0 |
41 | #define NULL_DES 0 |
42 | #define KTEXT_DES 1 |
42 | #define KTEXT_DES 1 |
43 | #define KDATA_DES 2 |
43 | #define KDATA_DES 2 |
44 | #define UTEXT_DES 3 |
44 | #define UTEXT_DES 3 |
45 | #define UDATA_DES 4 |
45 | #define UDATA_DES 4 |
46 | #define TSS_DES 5 |
46 | #define TSS_DES 5 |
47 | #define TLS_DES 6 /* Pointer to Thread-Local-Storage data */ |
47 | #define TLS_DES 6 /* Pointer to Thread-Local-Storage data */ |
48 | 48 | ||
49 | #define selector(des) ((des) << 3) |
49 | #define selector(des) ((des) << 3) |
50 | 50 | ||
51 | #define PL_KERNEL 1 |
51 | #define PL_KERNEL 1 |
52 | #define PL_USER 3 |
52 | #define PL_USER 3 |
53 | 53 | ||
54 | #define AR_PRESENT (1<<7) |
54 | #define AR_PRESENT (1<<7) |
55 | #define AR_DATA (2<<3) |
55 | #define AR_DATA (2<<3) |
56 | #define AR_CODE (3<<3) |
56 | #define AR_CODE (3<<3) |
57 | #define AR_WRITABLE (1<<1) |
57 | #define AR_WRITABLE (1<<1) |
58 | #define AR_INTERRUPT (0xe) |
58 | #define AR_INTERRUPT (0xe) |
59 | #define AR_TSS (0x9) |
59 | #define AR_TSS (0x9) |
60 | 60 | ||
61 | #define DPL_KERNEL (PL_KERNEL<<5) |
61 | #define DPL_KERNEL (PL_KERNEL<<5) |
62 | #define DPL_USER (PL_USER<<5) |
62 | #define DPL_USER (PL_USER<<5) |
63 | 63 | ||
64 | #define TSS_BASIC_SIZE 104 |
64 | #define TSS_BASIC_SIZE 104 |
65 | #define TSS_IOMAP_SIZE (16*1024+1) /* 16K for bitmap + 1 terminating byte for convenience */ |
65 | #define TSS_IOMAP_SIZE (16*1024+1) /* 16K for bitmap + 1 terminating byte for convenience */ |
66 | 66 | ||
67 | #define IO_PORTS (64*1024) |
67 | #define IO_PORTS (64*1024) |
68 | 68 | ||
69 | #ifndef __ASM__ |
69 | #ifndef __ASM__ |
70 | 70 | ||
71 | #include <arch/types.h> |
71 | #include <arch/types.h> |
72 | #include <typedefs.h> |
72 | #include <typedefs.h> |
73 | #include <arch/context.h> |
73 | #include <arch/context.h> |
74 | 74 | ||
75 | struct ptr_16_32 { |
75 | struct ptr_16_32 { |
76 | uint16_t limit; |
76 | uint16_t limit; |
77 | uint32_t base; |
77 | uint32_t base; |
78 | } __attribute__ ((packed)); |
78 | } __attribute__ ((packed)); |
79 | typedef struct ptr_16_32 ptr_16_32_t; |
79 | typedef struct ptr_16_32 ptr_16_32_t; |
80 | 80 | ||
81 | struct descriptor { |
81 | struct descriptor { |
82 | unsigned limit_0_15: 16; |
82 | unsigned limit_0_15: 16; |
83 | unsigned base_0_15: 16; |
83 | unsigned base_0_15: 16; |
84 | unsigned base_16_23: 8; |
84 | unsigned base_16_23: 8; |
85 | unsigned access: 8; |
85 | unsigned access: 8; |
86 | unsigned limit_16_19: 4; |
86 | unsigned limit_16_19: 4; |
87 | unsigned available: 1; |
87 | unsigned available: 1; |
88 | unsigned unused: 1; |
88 | unsigned unused: 1; |
89 | unsigned special: 1; |
89 | unsigned special: 1; |
90 | unsigned granularity : 1; |
90 | unsigned granularity : 1; |
91 | unsigned base_24_31: 8; |
91 | unsigned base_24_31: 8; |
92 | } __attribute__ ((packed)); |
92 | } __attribute__ ((packed)); |
93 | typedef struct descriptor descriptor_t; |
93 | typedef struct descriptor descriptor_t; |
94 | 94 | ||
95 | struct tss { |
95 | struct tss { |
96 | uint16_t link; |
96 | uint16_t link; |
97 | unsigned : 16; |
97 | unsigned : 16; |
98 | uint32_t esp0; |
98 | uint32_t esp0; |
99 | uint16_t ss0; |
99 | uint16_t ss0; |
100 | unsigned : 16; |
100 | unsigned : 16; |
101 | uint32_t esp1; |
101 | uint32_t esp1; |
102 | uint16_t ss1; |
102 | uint16_t ss1; |
103 | unsigned : 16; |
103 | unsigned : 16; |
104 | uint32_t esp2; |
104 | uint32_t esp2; |
105 | uint16_t ss2; |
105 | uint16_t ss2; |
106 | unsigned : 16; |
106 | unsigned : 16; |
107 | uint32_t cr3; |
107 | uint32_t cr3; |
108 | uint32_t eip; |
108 | uint32_t eip; |
109 | uint32_t eflags; |
109 | uint32_t eflags; |
110 | uint32_t eax; |
110 | uint32_t eax; |
111 | uint32_t ecx; |
111 | uint32_t ecx; |
112 | uint32_t edx; |
112 | uint32_t edx; |
113 | uint32_t ebx; |
113 | uint32_t ebx; |
114 | uint32_t esp; |
114 | uint32_t esp; |
115 | uint32_t ebp; |
115 | uint32_t ebp; |
116 | uint32_t esi; |
116 | uint32_t esi; |
117 | uint32_t edi; |
117 | uint32_t edi; |
118 | uint16_t es; |
118 | uint16_t es; |
119 | unsigned : 16; |
119 | unsigned : 16; |
120 | uint16_t cs; |
120 | uint16_t cs; |
121 | unsigned : 16; |
121 | unsigned : 16; |
122 | uint16_t ss; |
122 | uint16_t ss; |
123 | unsigned : 16; |
123 | unsigned : 16; |
124 | uint16_t ds; |
124 | uint16_t ds; |
125 | unsigned : 16; |
125 | unsigned : 16; |
126 | uint16_t fs; |
126 | uint16_t fs; |
127 | unsigned : 16; |
127 | unsigned : 16; |
128 | uint16_t gs; |
128 | uint16_t gs; |
129 | unsigned : 16; |
129 | unsigned : 16; |
130 | uint16_t ldtr; |
130 | uint16_t ldtr; |
131 | unsigned : 16; |
131 | unsigned : 16; |
132 | unsigned : 16; |
132 | unsigned : 16; |
133 | uint16_t iomap_base; |
133 | uint16_t iomap_base; |
134 | uint8_t iomap[TSS_IOMAP_SIZE]; |
134 | uint8_t iomap[TSS_IOMAP_SIZE]; |
135 | } __attribute__ ((packed)); |
135 | } __attribute__ ((packed)); |
136 | typedef struct tss tss_t; |
136 | typedef struct tss tss_t; |
137 | 137 | ||
138 | extern ptr_16_32_t gdtr; |
138 | extern ptr_16_32_t gdtr; |
139 | extern ptr_16_32_t bootstrap_gdtr; |
139 | extern ptr_16_32_t bootstrap_gdtr; |
140 | extern ptr_16_32_t protected_ap_gdtr; |
140 | extern ptr_16_32_t protected_ap_gdtr; |
141 | extern struct tss *tss_p; |
141 | extern struct tss *tss_p; |
142 | 142 | ||
143 | extern descriptor_t gdt[]; |
143 | extern descriptor_t gdt[]; |
144 | 144 | ||
145 | extern void pm_init(void); |
145 | extern void pm_init(void); |
146 | 146 | ||
147 | extern void gdt_setbase(descriptor_t *d, uintptr_t base); |
147 | extern void gdt_setbase(descriptor_t *d, uintptr_t base); |
148 | extern void gdt_setlimit(descriptor_t *d, uint32_t limit); |
148 | extern void gdt_setlimit(descriptor_t *d, uint32_t limit); |
149 | 149 | ||
150 | extern void traps_init(void); |
150 | extern void traps_init(void); |
151 | 151 | ||
152 | extern void tss_initialize(tss_t *t); |
152 | extern void tss_initialize(tss_t *t); |
153 | extern void set_tls_desc(uintptr_t tls); |
153 | extern void set_tls_desc(uintptr_t tls); |
154 | 154 | ||
155 | #endif /* __ASM__ */ |
155 | #endif /* __ASM__ */ |
156 | 156 | ||
157 | #endif |
157 | #endif |
158 | 158 | ||
159 | /** @} |
159 | /** @} |
160 | */ |
160 | */ |
161 | 161 |