linux-user/i386/target_syscall.h

   1 #ifndef TARGET_SYSCALL_H
   2 #define TARGET_SYSCALL_H
   3
   4 /* default linux values for the selectors */
   5 #define __USER_CS       (0x23)
   6 #define __USER_DS       (0x2B)
   7
   8 struct target_pt_regs {
   9         long ebx;
  10         long ecx;
  11         long edx;
  12         long esi;
  13         long edi;
  14         long ebp;
  15         long eax;
  16         int  xds;
  17         int  xes;
  18         long orig_eax;
  19         long eip;
  20         int  xcs;
  21         long eflags;
  22         long esp;
  23         int  xss;
  24 };
  25
  26 /* ioctls */
  27
  28 #define TARGET_LDT_ENTRIES      8192
  29 #define TARGET_LDT_ENTRY_SIZE   8
  30
  31 #define TARGET_GDT_ENTRIES             9
  32 #define TARGET_GDT_ENTRY_TLS_ENTRIES   3
  33 #define TARGET_GDT_ENTRY_TLS_MIN       6
  34 #define TARGET_GDT_ENTRY_TLS_MAX       (TARGET_GDT_ENTRY_TLS_MIN + TARGET_GDT_ENTRY_TLS_ENTRIES - 1)
  35
  36 struct target_modify_ldt_ldt_s {
  37     unsigned int  entry_number;
  38     abi_ulong base_addr;
  39     unsigned int limit;
  40     unsigned int flags;
  41 };
  42
  43 /* vm86 defines */
  44
  45 #define TARGET_BIOSSEG          0x0f000
  46
  47 #define TARGET_CPU_086          0
  48 #define TARGET_CPU_186          1
  49 #define TARGET_CPU_286          2
  50 #define TARGET_CPU_386          3
  51 #define TARGET_CPU_486          4
  52 #define TARGET_CPU_586          5
  53
  54 #define TARGET_VM86_SIGNAL      0       /* return due to signal */
  55 #define TARGET_VM86_UNKNOWN     1       /* unhandled GP fault - IO-instruction or similar */
  56 #define TARGET_VM86_INTx        2       /* int3/int x instruction (ARG = x) */
  57 #define TARGET_VM86_STI 3       /* sti/popf/iret instruction enabled virtual interrupts */
  58
  59 /*
  60  * Additional return values when invoking new vm86()
  61  */
  62 #define TARGET_VM86_PICRETURN   4       /* return due to pending PIC request */
  63 #define TARGET_VM86_TRAP        6       /* return due to DOS-debugger request */
  64
  65 /*
  66  * function codes when invoking new vm86()
  67  */
  68 #define TARGET_VM86_PLUS_INSTALL_CHECK  0
  69 #define TARGET_VM86_ENTER               1
  70 #define TARGET_VM86_ENTER_NO_BYPASS     2
  71 #define TARGET_VM86_REQUEST_IRQ 3
  72 #define TARGET_VM86_FREE_IRQ            4
  73 #define TARGET_VM86_GET_IRQ_BITS        5
  74 #define TARGET_VM86_GET_AND_RESET_IRQ   6
  75
  76 /*
  77  * This is the stack-layout seen by the user space program when we have
  78  * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
  79  * is 'kernel_vm86_regs' (see below).
  80  */
  81
  82 struct target_vm86_regs {
  83 /*
  84  * normal regs, with special meaning for the segment descriptors..
  85  */
  86         abi_long ebx;
  87         abi_long ecx;
  88         abi_long edx;
  89         abi_long esi;
  90         abi_long edi;
  91         abi_long ebp;
  92         abi_long eax;
  93         abi_long __null_ds;
  94         abi_long __null_es;
  95         abi_long __null_fs;
  96         abi_long __null_gs;
  97         abi_long orig_eax;
  98         abi_long eip;
  99         unsigned short cs, __csh;
 100         abi_long eflags;
 101         abi_long esp;
 102         unsigned short ss, __ssh;
 103 /*
 104  * these are specific to v86 mode:
 105  */
 106         unsigned short es, __esh;
 107         unsigned short ds, __dsh;
 108         unsigned short fs, __fsh;
 109         unsigned short gs, __gsh;
 110 };
 111
 112 struct target_revectored_struct {
 113         abi_ulong __map[8];                     /* 256 bits */
 114 };
 115
 116 struct target_vm86_struct {
 117         struct target_vm86_regs regs;
 118         abi_ulong flags;
 119         abi_ulong screen_bitmap;
 120         abi_ulong cpu_type;
 121         struct target_revectored_struct int_revectored;
 122         struct target_revectored_struct int21_revectored;
 123 };
 124
 125 /*
 126  * flags masks
 127  */
 128 #define TARGET_VM86_SCREEN_BITMAP       0x0001
 129
 130 struct target_vm86plus_info_struct {
 131         abi_ulong flags;
 132 #define TARGET_force_return_for_pic (1 << 0)
 133 #define TARGET_vm86dbg_active       (1 << 1)  /* for debugger */
 134 #define TARGET_vm86dbg_TFpendig     (1 << 2)  /* for debugger */
 135 #define TARGET_is_vm86pus           (1 << 31) /* for vm86 internal use */
 136         unsigned char vm86dbg_intxxtab[32];   /* for debugger */
 137 };
 138
 139 struct target_vm86plus_struct {
 140         struct target_vm86_regs regs;
 141         abi_ulong flags;
 142         abi_ulong screen_bitmap;
 143         abi_ulong cpu_type;
 144         struct target_revectored_struct int_revectored;
 145         struct target_revectored_struct int21_revectored;
 146         struct target_vm86plus_info_struct vm86plus;
 147 };
 148
 149 #define UNAME_MACHINE "i686"
 150 #define UNAME_MINIMUM_RELEASE "2.6.32"
 151
 152 #define TARGET_CLONE_BACKWARDS
 153 #define TARGET_MINSIGSTKSZ 2048
 154 #define TARGET_MLOCKALL_MCL_CURRENT 1
 155 #define TARGET_MLOCKALL_MCL_FUTURE  2
 156
 157 #endif  /* TARGET_SYSCALL_H */