Merge remote-tracking branch 'remotes/dg-gitlab/tags/ppc-for-6.1-20210504' into staging
[qemu.git] / linux-user / i386 / target_syscall.h
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 struct target_pt_regs {
9 long ebx;
10 long ecx;
11 long edx;
12 long esi;
13 long edi;
14 long ebp;
15 long eax;
16 int xds;
17 int xes;
18 long orig_eax;
19 long eip;
20 int xcs;
21 long eflags;
22 long esp;
23 int xss;
24 };
25
26 /* ioctls */
27
28 #define TARGET_LDT_ENTRIES 8192
29 #define TARGET_LDT_ENTRY_SIZE 8
30
31 #define TARGET_GDT_ENTRIES 9
32 #define TARGET_GDT_ENTRY_TLS_ENTRIES 3
33 #define TARGET_GDT_ENTRY_TLS_MIN 6
34 #define TARGET_GDT_ENTRY_TLS_MAX (TARGET_GDT_ENTRY_TLS_MIN + TARGET_GDT_ENTRY_TLS_ENTRIES - 1)
35
36 struct target_modify_ldt_ldt_s {
37 unsigned int entry_number;
38 abi_ulong base_addr;
39 unsigned int limit;
40 unsigned int flags;
41 };
42
43 /* vm86 defines */
44
45 #define TARGET_BIOSSEG 0x0f000
46
47 #define TARGET_CPU_086 0
48 #define TARGET_CPU_186 1
49 #define TARGET_CPU_286 2
50 #define TARGET_CPU_386 3
51 #define TARGET_CPU_486 4
52 #define TARGET_CPU_586 5
53
54 #define TARGET_VM86_SIGNAL 0 /* return due to signal */
55 #define TARGET_VM86_UNKNOWN 1 /* unhandled GP fault - IO-instruction or similar */
56 #define TARGET_VM86_INTx 2 /* int3/int x instruction (ARG = x) */
57 #define TARGET_VM86_STI 3 /* sti/popf/iret instruction enabled virtual interrupts */
58
59 /*
60 * Additional return values when invoking new vm86()
61 */
62 #define TARGET_VM86_PICRETURN 4 /* return due to pending PIC request */
63 #define TARGET_VM86_TRAP 6 /* return due to DOS-debugger request */
64
65 /*
66 * function codes when invoking new vm86()
67 */
68 #define TARGET_VM86_PLUS_INSTALL_CHECK 0
69 #define TARGET_VM86_ENTER 1
70 #define TARGET_VM86_ENTER_NO_BYPASS 2
71 #define TARGET_VM86_REQUEST_IRQ 3
72 #define TARGET_VM86_FREE_IRQ 4
73 #define TARGET_VM86_GET_IRQ_BITS 5
74 #define TARGET_VM86_GET_AND_RESET_IRQ 6
75
76 /*
77 * This is the stack-layout seen by the user space program when we have
78 * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
79 * is 'kernel_vm86_regs' (see below).
80 */
81
82 struct target_vm86_regs {
83 /*
84 * normal regs, with special meaning for the segment descriptors..
85 */
86 abi_long ebx;
87 abi_long ecx;
88 abi_long edx;
89 abi_long esi;
90 abi_long edi;
91 abi_long ebp;
92 abi_long eax;
93 abi_long __null_ds;
94 abi_long __null_es;
95 abi_long __null_fs;
96 abi_long __null_gs;
97 abi_long orig_eax;
98 abi_long eip;
99 unsigned short cs, __csh;
100 abi_long eflags;
101 abi_long esp;
102 unsigned short ss, __ssh;
103 /*
104 * these are specific to v86 mode:
105 */
106 unsigned short es, __esh;
107 unsigned short ds, __dsh;
108 unsigned short fs, __fsh;
109 unsigned short gs, __gsh;
110 };
111
112 struct target_revectored_struct {
113 abi_ulong __map[8]; /* 256 bits */
114 };
115
116 struct target_vm86_struct {
117 struct target_vm86_regs regs;
118 abi_ulong flags;
119 abi_ulong screen_bitmap;
120 abi_ulong cpu_type;
121 struct target_revectored_struct int_revectored;
122 struct target_revectored_struct int21_revectored;
123 };
124
125 /*
126 * flags masks
127 */
128 #define TARGET_VM86_SCREEN_BITMAP 0x0001
129
130 struct target_vm86plus_info_struct {
131 abi_ulong flags;
132 #define TARGET_force_return_for_pic (1 << 0)
133 #define TARGET_vm86dbg_active (1 << 1) /* for debugger */
134 #define TARGET_vm86dbg_TFpendig (1 << 2) /* for debugger */
135 #define TARGET_is_vm86pus (1 << 31) /* for vm86 internal use */
136 unsigned char vm86dbg_intxxtab[32]; /* for debugger */
137 };
138
139 struct target_vm86plus_struct {
140 struct target_vm86_regs regs;
141 abi_ulong flags;
142 abi_ulong screen_bitmap;
143 abi_ulong cpu_type;
144 struct target_revectored_struct int_revectored;
145 struct target_revectored_struct int21_revectored;
146 struct target_vm86plus_info_struct vm86plus;
147 };
148
149 #define UNAME_MACHINE "i686"
150 #define UNAME_MINIMUM_RELEASE "2.6.32"
151
152 #define TARGET_CLONE_BACKWARDS
153 #define TARGET_MINSIGSTKSZ 2048
154 #define TARGET_MCL_CURRENT 1
155 #define TARGET_MCL_FUTURE 2
156 #define TARGET_MCL_ONFAULT 4
157 #define TARGET_WANT_OLD_SYS_SELECT
158
159 #endif /* I386_TARGET_SYSCALL_H */