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_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 #define UNAME_MACHINE "i686"