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