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1 #ifndef I386_TARGET_SYSCALL_H
2 #define I386_TARGET_SYSCALL_H
3
4 /* default linux values for the selectors */
5 #define __USER_CS (0x23)
6 #define __USER_DS (0x2B)
7
8 /* ioctls */
9
10 #define TARGET_LDT_ENTRIES 8192
11 #define TARGET_LDT_ENTRY_SIZE 8
12
13 #define TARGET_GDT_ENTRIES 9
14 #define TARGET_GDT_ENTRY_TLS_ENTRIES 3
15 #define TARGET_GDT_ENTRY_TLS_MIN 6
16 #define TARGET_GDT_ENTRY_TLS_MAX (TARGET_GDT_ENTRY_TLS_MIN + TARGET_GDT_ENTRY_TLS_ENTRIES - 1)
17
18 struct target_modify_ldt_ldt_s {
19 unsigned int entry_number;
20 abi_ulong base_addr;
21 unsigned int limit;
22 unsigned int flags;
23 };
24
25 /* vm86 defines */
26
27 #define TARGET_BIOSSEG 0x0f000
28
29 #define TARGET_CPU_086 0
30 #define TARGET_CPU_186 1
31 #define TARGET_CPU_286 2
32 #define TARGET_CPU_386 3
33 #define TARGET_CPU_486 4
34 #define TARGET_CPU_586 5
35
36 #define TARGET_VM86_SIGNAL 0 /* return due to signal */
37 #define TARGET_VM86_UNKNOWN 1 /* unhandled GP fault - IO-instruction or similar */
38 #define TARGET_VM86_INTx 2 /* int3/int x instruction (ARG = x) */
39 #define TARGET_VM86_STI 3 /* sti/popf/iret instruction enabled virtual interrupts */
40
41 /*
42 * Additional return values when invoking new vm86()
43 */
44 #define TARGET_VM86_PICRETURN 4 /* return due to pending PIC request */
45 #define TARGET_VM86_TRAP 6 /* return due to DOS-debugger request */
46
47 /*
48 * function codes when invoking new vm86()
49 */
50 #define TARGET_VM86_PLUS_INSTALL_CHECK 0
51 #define TARGET_VM86_ENTER 1
52 #define TARGET_VM86_ENTER_NO_BYPASS 2
53 #define TARGET_VM86_REQUEST_IRQ 3
54 #define TARGET_VM86_FREE_IRQ 4
55 #define TARGET_VM86_GET_IRQ_BITS 5
56 #define TARGET_VM86_GET_AND_RESET_IRQ 6
57
58 /*
59 * This is the stack-layout seen by the user space program when we have
60 * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
61 * is 'kernel_vm86_regs' (see below).
62 */
63
64 struct target_vm86_regs {
65 /*
66 * normal regs, with special meaning for the segment descriptors..
67 */
68 abi_long ebx;
69 abi_long ecx;
70 abi_long edx;
71 abi_long esi;
72 abi_long edi;
73 abi_long ebp;
74 abi_long eax;
75 abi_long __null_ds;
76 abi_long __null_es;
77 abi_long __null_fs;
78 abi_long __null_gs;
79 abi_long orig_eax;
80 abi_long eip;
81 unsigned short cs, __csh;
82 abi_long eflags;
83 abi_long esp;
84 unsigned short ss, __ssh;
85 /*
86 * these are specific to v86 mode:
87 */
88 unsigned short es, __esh;
89 unsigned short ds, __dsh;
90 unsigned short fs, __fsh;
91 unsigned short gs, __gsh;
92 };
93
94 struct target_revectored_struct {
95 abi_ulong __map[8]; /* 256 bits */
96 };
97
98 struct target_vm86_struct {
99 struct target_vm86_regs regs;
100 abi_ulong flags;
101 abi_ulong screen_bitmap;
102 abi_ulong cpu_type;
103 struct target_revectored_struct int_revectored;
104 struct target_revectored_struct int21_revectored;
105 };
106
107 /*
108 * flags masks
109 */
110 #define TARGET_VM86_SCREEN_BITMAP 0x0001
111
112 struct target_vm86plus_info_struct {
113 abi_ulong flags;
114 #define TARGET_force_return_for_pic (1 << 0)
115 #define TARGET_vm86dbg_active (1 << 1) /* for debugger */
116 #define TARGET_vm86dbg_TFpendig (1 << 2) /* for debugger */
117 #define TARGET_is_vm86pus (1 << 31) /* for vm86 internal use */
118 unsigned char vm86dbg_intxxtab[32]; /* for debugger */
119 };
120
121 struct target_vm86plus_struct {
122 struct target_vm86_regs regs;
123 abi_ulong flags;
124 abi_ulong screen_bitmap;
125 abi_ulong cpu_type;
126 struct target_revectored_struct int_revectored;
127 struct target_revectored_struct int21_revectored;
128 struct target_vm86plus_info_struct vm86plus;
129 };
130
131 #define UNAME_MACHINE "i686"
132 #define UNAME_MINIMUM_RELEASE "2.6.32"
133
134 #define TARGET_CLONE_BACKWARDS
135 #define TARGET_MCL_CURRENT 1
136 #define TARGET_MCL_FUTURE 2
137 #define TARGET_MCL_ONFAULT 4
138 #define TARGET_WANT_OLD_SYS_SELECT
139
140 #endif /* I386_TARGET_SYSCALL_H */