Subversion Repositories HelenOS-historic

Rev

Rev 1184 | Rev 1203 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1184 Rev 1187
Line 53... Line 53...
53
#define AR_TSS      (0x9)
53
#define AR_TSS      (0x9)
54
 
54
 
55
#define DPL_KERNEL  (PL_KERNEL<<5)
55
#define DPL_KERNEL  (PL_KERNEL<<5)
56
#define DPL_USER    (PL_USER<<5)
56
#define DPL_USER    (PL_USER<<5)
57
 
57
 
58
#define IO_MAP_BASE (104)
58
#define TSS_BASIC_SIZE  104
59
 
59
 
60
#ifndef __ASM__
60
#ifndef __ASM__
61
 
61
 
62
#include <arch/types.h>
62
#include <arch/types.h>
63
#include <typedefs.h>
63
#include <typedefs.h>
Line 65... Line 65...
65
 
65
 
66
struct ptr_16_32 {
66
struct ptr_16_32 {
67
    __u16 limit;
67
    __u16 limit;
68
    __u32 base;
68
    __u32 base;
69
} __attribute__ ((packed));
69
} __attribute__ ((packed));
-
 
70
typedef struct ptr_16_32 ptr_16_32_t;
70
 
71
 
71
struct descriptor {
72
struct descriptor {
72
    unsigned limit_0_15: 16;
73
    unsigned limit_0_15: 16;
73
    unsigned base_0_15: 16;
74
    unsigned base_0_15: 16;
74
    unsigned base_16_23: 8;
75
    unsigned base_16_23: 8;
Line 78... Line 79...
78
    unsigned unused: 1;
79
    unsigned unused: 1;
79
    unsigned special: 1;
80
    unsigned special: 1;
80
    unsigned granularity : 1;
81
    unsigned granularity : 1;
81
    unsigned base_24_31: 8;
82
    unsigned base_24_31: 8;
82
} __attribute__ ((packed));
83
} __attribute__ ((packed));
-
 
84
typedef struct descriptor  descriptor_t;
83
 
85
 
84
struct idescriptor {
86
struct idescriptor {
85
    unsigned offset_0_15: 16;
87
    unsigned offset_0_15: 16;
86
    unsigned selector: 16;
88
    unsigned selector: 16;
87
    unsigned unused: 8;
89
    unsigned unused: 8;
88
    unsigned access: 8;
90
    unsigned access: 8;
89
    unsigned offset_16_31: 16;
91
    unsigned offset_16_31: 16;
90
} __attribute__ ((packed));
92
} __attribute__ ((packed));
91
 
-
 
-
 
93
typedef struct idescriptor idescriptor_t;
92
 
94
 
93
struct tss {
95
struct tss {
94
    __u16 link;
96
    __u16 link;
95
    unsigned : 16;
97
    unsigned : 16;
96
    __u32 esp0;
98
    __u32 esp0;
Line 129... Line 131...
129
    unsigned : 16;
131
    unsigned : 16;
130
    unsigned : 16;
132
    unsigned : 16;
131
    __u16 iomap_base;
133
    __u16 iomap_base;
132
    __u8 iomap[0x10000+1];  /* 64K + 1 terminating byte */
134
    __u8 iomap[0x10000+1];  /* 64K + 1 terminating byte */
133
} __attribute__ ((packed));
135
} __attribute__ ((packed));
-
 
136
typedef struct tss tss_t;
134
 
137
 
135
extern struct ptr_16_32 gdtr;
138
extern ptr_16_32_t gdtr;
136
extern struct ptr_16_32 bootstrap_gdtr;
139
extern ptr_16_32_t bootstrap_gdtr;
137
extern struct ptr_16_32 protected_ap_gdtr;
140
extern ptr_16_32_t protected_ap_gdtr;
138
extern struct tss *tss_p;
141
extern struct tss *tss_p;
139
 
142
 
140
extern struct descriptor gdt[];
143
extern descriptor_t gdt[];
141
 
144
 
142
extern void pm_init(void);
145
extern void pm_init(void);
143
 
146
 
144
extern void gdt_setbase(struct descriptor *d, __address base);
147
extern void gdt_setbase(descriptor_t *d, __address base);
145
extern void gdt_setlimit(struct descriptor *d, __u32 limit);
148
extern void gdt_setlimit(descriptor_t *d, __u32 limit);
146
 
149
 
147
extern void idt_init(void);
150
extern void idt_init(void);
148
extern void idt_setoffset(struct idescriptor *d, __address offset);
151
extern void idt_setoffset(idescriptor_t *d, __address offset);
149
 
152
 
150
extern void tss_initialize(struct tss *t);
153
extern void tss_initialize(tss_t *t);
151
extern void set_tls_desc(__address tls);
154
extern void set_tls_desc(__address tls);
152
 
155
 
153
#endif /* __ASM__ */
156
#endif /* __ASM__ */
154
 
157
 
155
#endif
158
#endif