1 /* default linux values for the selectors */
2 #define __USER_CS (0x23)
3 #define __USER_DS (0x2B)
5 struct target_pt_regs {
27 #define TARGET_LDT_ENTRIES 8192
28 #define TARGET_LDT_ENTRY_SIZE 8
30 #define TARGET_GDT_ENTRIES 9
31 #define TARGET_GDT_ENTRY_TLS_ENTRIES 3
32 #define TARGET_GDT_ENTRY_TLS_MIN 6
33 #define TARGET_GDT_ENTRY_TLS_MAX (TARGET_GDT_ENTRY_TLS_MIN + TARGET_GDT_ENTRY_TLS_ENTRIES - 1)
35 struct target_modify_ldt_ldt_s {
36 unsigned int entry_number;
44 #define TARGET_BIOSSEG 0x0f000
46 #define TARGET_CPU_086 0
47 #define TARGET_CPU_186 1
48 #define TARGET_CPU_286 2
49 #define TARGET_CPU_386 3
50 #define TARGET_CPU_486 4
51 #define TARGET_CPU_586 5
53 #define TARGET_VM86_SIGNAL 0 /* return due to signal */
54 #define TARGET_VM86_UNKNOWN 1 /* unhandled GP fault - IO-instruction or similar */
55 #define TARGET_VM86_INTx 2 /* int3/int x instruction (ARG = x) */
56 #define TARGET_VM86_STI 3 /* sti/popf/iret instruction enabled virtual interrupts */
59 * Additional return values when invoking new vm86()
61 #define TARGET_VM86_PICRETURN 4 /* return due to pending PIC request */
62 #define TARGET_VM86_TRAP 6 /* return due to DOS-debugger request */
65 * function codes when invoking new vm86()
67 #define TARGET_VM86_PLUS_INSTALL_CHECK 0
68 #define TARGET_VM86_ENTER 1
69 #define TARGET_VM86_ENTER_NO_BYPASS 2
70 #define TARGET_VM86_REQUEST_IRQ 3
71 #define TARGET_VM86_FREE_IRQ 4
72 #define TARGET_VM86_GET_IRQ_BITS 5
73 #define TARGET_VM86_GET_AND_RESET_IRQ 6
76 * This is the stack-layout seen by the user space program when we have
77 * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
78 * is 'kernel_vm86_regs' (see below).
81 struct target_vm86_regs {
83 * normal regs, with special meaning for the segment descriptors..
98 unsigned short cs, __csh;
101 unsigned short ss, __ssh;
103 * these are specific to v86 mode:
105 unsigned short es, __esh;
106 unsigned short ds, __dsh;
107 unsigned short fs, __fsh;
108 unsigned short gs, __gsh;
111 struct target_revectored_struct {
112 abi_ulong __map[8]; /* 256 bits */
115 struct target_vm86_struct {
116 struct target_vm86_regs regs;
118 abi_ulong screen_bitmap;
120 struct target_revectored_struct int_revectored;
121 struct target_revectored_struct int21_revectored;
127 #define TARGET_VM86_SCREEN_BITMAP 0x0001
129 struct target_vm86plus_info_struct {
131 #define TARGET_force_return_for_pic (1 << 0)
132 #define TARGET_vm86dbg_active (1 << 1) /* for debugger */
133 #define TARGET_vm86dbg_TFpendig (1 << 2) /* for debugger */
134 #define TARGET_is_vm86pus (1 << 31) /* for vm86 internal use */
135 unsigned char vm86dbg_intxxtab[32]; /* for debugger */
138 struct target_vm86plus_struct {
139 struct target_vm86_regs regs;
141 abi_ulong screen_bitmap;
143 struct target_revectored_struct int_revectored;
144 struct target_revectored_struct int21_revectored;
145 struct target_vm86plus_info_struct vm86plus;
148 #define UNAME_MACHINE "i686"