Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-6.1-pull-reques...
[qemu.git] / bsd-user / i386 / target_syscall.h
1 /*
2 * i386 system call definitions
3 *
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, see <http://www.gnu.org/licenses/>.
17 */
18 #ifndef TARGET_SYSCALL_H
19 #define TARGET_SYSCALL_H
20
21 /* default linux values for the selectors */
22 #define __USER_CS (0x23)
23 #define __USER_DS (0x2B)
24
25 struct target_pt_regs {
26 long ebx;
27 long ecx;
28 long edx;
29 long esi;
30 long edi;
31 long ebp;
32 long eax;
33 int xds;
34 int xes;
35 long orig_eax;
36 long eip;
37 int xcs;
38 long eflags;
39 long esp;
40 int xss;
41 };
42
43 /* ioctls */
44
45 #define TARGET_LDT_ENTRIES 8192
46 #define TARGET_LDT_ENTRY_SIZE 8
47
48 #define TARGET_GDT_ENTRIES 9
49 #define TARGET_GDT_ENTRY_TLS_ENTRIES 3
50 #define TARGET_GDT_ENTRY_TLS_MIN 6
51 #define TARGET_GDT_ENTRY_TLS_MAX (TARGET_GDT_ENTRY_TLS_MIN + TARGET_GDT_ENTRY_TLS_ENTRIES - 1)
52
53 struct target_modify_ldt_ldt_s {
54 unsigned int entry_number;
55 abi_ulong base_addr;
56 unsigned int limit;
57 unsigned int flags;
58 };
59
60 /* vm86 defines */
61
62 #define TARGET_BIOSSEG 0x0f000
63
64 #define TARGET_CPU_086 0
65 #define TARGET_CPU_186 1
66 #define TARGET_CPU_286 2
67 #define TARGET_CPU_386 3
68 #define TARGET_CPU_486 4
69 #define TARGET_CPU_586 5
70
71 #define TARGET_VM86_SIGNAL 0 /* return due to signal */
72 #define TARGET_VM86_UNKNOWN 1 /* unhandled GP fault - IO-instruction or similar */
73 #define TARGET_VM86_INTx 2 /* int3/int x instruction (ARG = x) */
74 #define TARGET_VM86_STI 3 /* sti/popf/iret instruction enabled virtual interrupts */
75
76 /*
77 * Additional return values when invoking new vm86()
78 */
79 #define TARGET_VM86_PICRETURN 4 /* return due to pending PIC request */
80 #define TARGET_VM86_TRAP 6 /* return due to DOS-debugger request */
81
82 /*
83 * function codes when invoking new vm86()
84 */
85 #define TARGET_VM86_PLUS_INSTALL_CHECK 0
86 #define TARGET_VM86_ENTER 1
87 #define TARGET_VM86_ENTER_NO_BYPASS 2
88 #define TARGET_VM86_REQUEST_IRQ 3
89 #define TARGET_VM86_FREE_IRQ 4
90 #define TARGET_VM86_GET_IRQ_BITS 5
91 #define TARGET_VM86_GET_AND_RESET_IRQ 6
92
93 /*
94 * This is the stack-layout seen by the user space program when we have
95 * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
96 * is 'kernel_vm86_regs' (see below).
97 */
98
99 struct target_vm86_regs {
100 /*
101 * normal regs, with special meaning for the segment descriptors..
102 */
103 abi_long ebx;
104 abi_long ecx;
105 abi_long edx;
106 abi_long esi;
107 abi_long edi;
108 abi_long ebp;
109 abi_long eax;
110 abi_long __null_ds;
111 abi_long __null_es;
112 abi_long __null_fs;
113 abi_long __null_gs;
114 abi_long orig_eax;
115 abi_long eip;
116 unsigned short cs, __csh;
117 abi_long eflags;
118 abi_long esp;
119 unsigned short ss, __ssh;
120 /*
121 * these are specific to v86 mode:
122 */
123 unsigned short es, __esh;
124 unsigned short ds, __dsh;
125 unsigned short fs, __fsh;
126 unsigned short gs, __gsh;
127 };
128
129 struct target_revectored_struct {
130 abi_ulong __map[8]; /* 256 bits */
131 };
132
133 struct target_vm86_struct {
134 struct target_vm86_regs regs;
135 abi_ulong flags;
136 abi_ulong screen_bitmap;
137 abi_ulong cpu_type;
138 struct target_revectored_struct int_revectored;
139 struct target_revectored_struct int21_revectored;
140 };
141
142 /*
143 * flags masks
144 */
145 #define TARGET_VM86_SCREEN_BITMAP 0x0001
146
147 struct target_vm86plus_info_struct {
148 abi_ulong flags;
149 #define TARGET_force_return_for_pic (1 << 0)
150 #define TARGET_vm86dbg_active (1 << 1) /* for debugger */
151 #define TARGET_vm86dbg_TFpendig (1 << 2) /* for debugger */
152 #define TARGET_is_vm86pus (1 << 31) /* for vm86 internal use */
153 unsigned char vm86dbg_intxxtab[32]; /* for debugger */
154 };
155
156 struct target_vm86plus_struct {
157 struct target_vm86_regs regs;
158 abi_ulong flags;
159 abi_ulong screen_bitmap;
160 abi_ulong cpu_type;
161 struct target_revectored_struct int_revectored;
162 struct target_revectored_struct int21_revectored;
163 struct target_vm86plus_info_struct vm86plus;
164 };
165
166 /* FreeBSD sysarch(2) */
167 #define TARGET_FREEBSD_I386_GET_LDT 0
168 #define TARGET_FREEBSD_I386_SET_LDT 1
169 /* I386_IOPL */
170 #define TARGET_FREEBSD_I386_GET_IOPERM 3
171 #define TARGET_FREEBSD_I386_SET_IOPERM 4
172 /* xxxxx */
173 #define TARGET_FREEBSD_I386_VM86 6
174 #define TARGET_FREEBSD_I386_GET_FSBASE 7
175 #define TARGET_FREEBSD_I386_SET_FSBASE 8
176 #define TARGET_FREEBSD_I386_GET_GSBASE 9
177 #define TARGET_FREEBSD_I386_SET_GSBASE 10
178
179
180 #define UNAME_MACHINE "i386"
181 #define TARGET_HW_MACHINE UNAME_MACHINE
182 #define TARGET_HW_MACHINE_ARCH UNAME_MACHINE
183
184 #endif /* TARGET_SYSCALL_H */