Merge branch 'for-upstream' of git://repo.or.cz/qemu/agraf
[qemu.git] / linux-user / i386 / syscall.h
1 /* default linux values for the selectors */
2 #define __USER_CS (0x23)
3 #define __USER_DS (0x2B)
4
5 struct target_pt_regs {
6 long ebx;
7 long ecx;
8 long edx;
9 long esi;
10 long edi;
11 long ebp;
12 long eax;
13 int xds;
14 int xes;
15 long orig_eax;
16 long eip;
17 int xcs;
18 long eflags;
19 long esp;
20 int xss;
21 };
22
23 /* ioctls */
24
25 #define TARGET_LDT_ENTRIES 8192
26 #define TARGET_LDT_ENTRY_SIZE 8
27
28 #define TARGET_GDT_ENTRIES 9
29 #define TARGET_GDT_ENTRY_TLS_ENTRIES 3
30 #define TARGET_GDT_ENTRY_TLS_MIN 6
31 #define TARGET_GDT_ENTRY_TLS_MAX (TARGET_GDT_ENTRY_TLS_MIN + TARGET_GDT_ENTRY_TLS_ENTRIES - 1)
32
33 struct target_modify_ldt_ldt_s {
34 unsigned int entry_number;
35 abi_ulong base_addr;
36 unsigned int limit;
37 unsigned int flags;
38 };
39
40 /* vm86 defines */
41
42 #define TARGET_BIOSSEG 0x0f000
43
44 #define TARGET_CPU_086 0
45 #define TARGET_CPU_186 1
46 #define TARGET_CPU_286 2
47 #define TARGET_CPU_386 3
48 #define TARGET_CPU_486 4
49 #define TARGET_CPU_586 5
50
51 #define TARGET_VM86_SIGNAL 0 /* return due to signal */
52 #define TARGET_VM86_UNKNOWN 1 /* unhandled GP fault - IO-instruction or similar */
53 #define TARGET_VM86_INTx 2 /* int3/int x instruction (ARG = x) */
54 #define TARGET_VM86_STI 3 /* sti/popf/iret instruction enabled virtual interrupts */
55
56 /*
57 * Additional return values when invoking new vm86()
58 */
59 #define TARGET_VM86_PICRETURN 4 /* return due to pending PIC request */
60 #define TARGET_VM86_TRAP 6 /* return due to DOS-debugger request */
61
62 /*
63 * function codes when invoking new vm86()
64 */
65 #define TARGET_VM86_PLUS_INSTALL_CHECK 0
66 #define TARGET_VM86_ENTER 1
67 #define TARGET_VM86_ENTER_NO_BYPASS 2
68 #define TARGET_VM86_REQUEST_IRQ 3
69 #define TARGET_VM86_FREE_IRQ 4
70 #define TARGET_VM86_GET_IRQ_BITS 5
71 #define TARGET_VM86_GET_AND_RESET_IRQ 6
72
73 /*
74 * This is the stack-layout seen by the user space program when we have
75 * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
76 * is 'kernel_vm86_regs' (see below).
77 */
78
79 struct target_vm86_regs {
80 /*
81 * normal regs, with special meaning for the segment descriptors..
82 */
83 abi_long ebx;
84 abi_long ecx;
85 abi_long edx;
86 abi_long esi;
87 abi_long edi;
88 abi_long ebp;
89 abi_long eax;
90 abi_long __null_ds;
91 abi_long __null_es;
92 abi_long __null_fs;
93 abi_long __null_gs;
94 abi_long orig_eax;
95 abi_long eip;
96 unsigned short cs, __csh;
97 abi_long eflags;
98 abi_long esp;
99 unsigned short ss, __ssh;
100 /*
101 * these are specific to v86 mode:
102 */
103 unsigned short es, __esh;
104 unsigned short ds, __dsh;
105 unsigned short fs, __fsh;
106 unsigned short gs, __gsh;
107 };
108
109 struct target_revectored_struct {
110 abi_ulong __map[8]; /* 256 bits */
111 };
112
113 struct target_vm86_struct {
114 struct target_vm86_regs regs;
115 abi_ulong flags;
116 abi_ulong screen_bitmap;
117 abi_ulong cpu_type;
118 struct target_revectored_struct int_revectored;
119 struct target_revectored_struct int21_revectored;
120 };
121
122 /*
123 * flags masks
124 */
125 #define TARGET_VM86_SCREEN_BITMAP 0x0001
126
127 struct target_vm86plus_info_struct {
128 abi_ulong flags;
129 #define TARGET_force_return_for_pic (1 << 0)
130 #define TARGET_vm86dbg_active (1 << 1) /* for debugger */
131 #define TARGET_vm86dbg_TFpendig (1 << 2) /* for debugger */
132 #define TARGET_is_vm86pus (1 << 31) /* for vm86 internal use */
133 unsigned char vm86dbg_intxxtab[32]; /* for debugger */
134 };
135
136 struct target_vm86plus_struct {
137 struct target_vm86_regs regs;
138 abi_ulong flags;
139 abi_ulong screen_bitmap;
140 abi_ulong cpu_type;
141 struct target_revectored_struct int_revectored;
142 struct target_revectored_struct int21_revectored;
143 struct target_vm86plus_info_struct vm86plus;
144 };
145
146 #define UNAME_MACHINE "i686"