xref: /illumos-kvm-cmd/bsd-user/i386/syscall.h (revision 68396ea9)
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 /* FreeBSD sysarch(2) */
147 #define TARGET_FREEBSD_I386_GET_LDT	0
148 #define TARGET_FREEBSD_I386_SET_LDT	1
149 				/* I386_IOPL */
150 #define TARGET_FREEBSD_I386_GET_IOPERM	3
151 #define TARGET_FREEBSD_I386_SET_IOPERM	4
152 				/* xxxxx */
153 #define TARGET_FREEBSD_I386_VM86	6
154 #define TARGET_FREEBSD_I386_GET_FSBASE	7
155 #define TARGET_FREEBSD_I386_SET_FSBASE	8
156 #define TARGET_FREEBSD_I386_GET_GSBASE	9
157 #define TARGET_FREEBSD_I386_SET_GSBASE	10
158 
159 
160 #define UNAME_MACHINE "i386"
161 
162