Blame view

linux-user/i386/syscall.h 3.47 KB
bellard authored
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
/* default linux values for the selectors */
#define __USER_CS	(0x23)
#define __USER_DS	(0x2B)

struct target_pt_regs {
	long ebx;
	long ecx;
	long edx;
	long esi;
	long edi;
	long ebp;
	long eax;
	int  xds;
	int  xes;
	long orig_eax;
	long eip;
	int  xcs;
	long eflags;
	long esp;
	int  xss;
};

/* ioctls */

#define TARGET_LDT_ENTRIES      8192
#define TARGET_LDT_ENTRY_SIZE	8
bellard authored
28
#define TARGET_GDT_ENTRIES             9
bellard authored
29
30
31
32
33
34
#define TARGET_GDT_ENTRY_TLS_ENTRIES   3
#define TARGET_GDT_ENTRY_TLS_MIN       6
#define TARGET_GDT_ENTRY_TLS_MAX       (TARGET_GDT_ENTRY_TLS_MIN + TARGET_GDT_ENTRY_TLS_ENTRIES - 1)

struct target_modify_ldt_ldt_s {
    unsigned int  entry_number;
35
    abi_ulong base_addr;
bellard authored
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
    unsigned int limit;
    unsigned int flags;
};

/* vm86 defines */

#define TARGET_BIOSSEG		0x0f000

#define TARGET_CPU_086		0
#define TARGET_CPU_186		1
#define TARGET_CPU_286		2
#define TARGET_CPU_386		3
#define TARGET_CPU_486		4
#define TARGET_CPU_586		5

#define TARGET_VM86_SIGNAL	0	/* return due to signal */
#define TARGET_VM86_UNKNOWN	1	/* unhandled GP fault - IO-instruction or similar */
#define TARGET_VM86_INTx	2	/* int3/int x instruction (ARG = x) */
#define TARGET_VM86_STI	3	/* sti/popf/iret instruction enabled virtual interrupts */

/*
 * Additional return values when invoking new vm86()
 */
#define TARGET_VM86_PICRETURN	4	/* return due to pending PIC request */
#define TARGET_VM86_TRAP	6	/* return due to DOS-debugger request */

/*
 * function codes when invoking new vm86()
 */
#define TARGET_VM86_PLUS_INSTALL_CHECK	0
#define TARGET_VM86_ENTER		1
#define TARGET_VM86_ENTER_NO_BYPASS	2
#define	TARGET_VM86_REQUEST_IRQ	3
#define TARGET_VM86_FREE_IRQ		4
#define TARGET_VM86_GET_IRQ_BITS	5
#define TARGET_VM86_GET_AND_RESET_IRQ	6

/*
 * This is the stack-layout seen by the user space program when we have
 * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
 * is 'kernel_vm86_regs' (see below).
 */

struct target_vm86_regs {
/*
 * normal regs, with special meaning for the segment descriptors..
 */
83
84
85
86
87
88
89
90
91
92
93
94
95
	abi_long ebx;
	abi_long ecx;
	abi_long edx;
	abi_long esi;
	abi_long edi;
	abi_long ebp;
	abi_long eax;
	abi_long __null_ds;
	abi_long __null_es;
	abi_long __null_fs;
	abi_long __null_gs;
	abi_long orig_eax;
	abi_long eip;
bellard authored
96
	unsigned short cs, __csh;
97
98
	abi_long eflags;
	abi_long esp;
bellard authored
99
100
101
102
103
104
105
106
107
108
109
	unsigned short ss, __ssh;
/*
 * these are specific to v86 mode:
 */
	unsigned short es, __esh;
	unsigned short ds, __dsh;
	unsigned short fs, __fsh;
	unsigned short gs, __gsh;
};

struct target_revectored_struct {
110
	abi_ulong __map[8];			/* 256 bits */
bellard authored
111
112
113
114
};

struct target_vm86_struct {
	struct target_vm86_regs regs;
115
116
117
	abi_ulong flags;
	abi_ulong screen_bitmap;
	abi_ulong cpu_type;
bellard authored
118
119
120
121
122
123
124
125
126
127
	struct target_revectored_struct int_revectored;
	struct target_revectored_struct int21_revectored;
};

/*
 * flags masks
 */
#define TARGET_VM86_SCREEN_BITMAP	0x0001

struct target_vm86plus_info_struct {
128
        abi_ulong flags;
bellard authored
129
130
131
132
133
134
135
136
137
#define TARGET_force_return_for_pic (1 << 0)
#define TARGET_vm86dbg_active       (1 << 1)  /* for debugger */
#define TARGET_vm86dbg_TFpendig     (1 << 2)  /* for debugger */
#define TARGET_is_vm86pus           (1 << 31) /* for vm86 internal use */
	unsigned char vm86dbg_intxxtab[32];   /* for debugger */
};

struct target_vm86plus_struct {
	struct target_vm86_regs regs;
138
139
140
	abi_ulong flags;
	abi_ulong screen_bitmap;
	abi_ulong cpu_type;
bellard authored
141
142
143
144
145
	struct target_revectored_struct int_revectored;
	struct target_revectored_struct int21_revectored;
	struct target_vm86plus_info_struct vm86plus;
};
bellard authored
146
#define UNAME_MACHINE "i686"