LXR qemu/linux-user/i386/syscall.h

   1/* default linux values for the selectors */
   2#define __USER_CS       (0x23)
   3#define __USER_DS       (0x2B)
   4
   5struct 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
  33struct 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
  79struct 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
 109struct target_revectored_struct {
 110        abi_ulong __map[8];                     /* 256 bits */
 111};
 112
 113struct 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
 127struct 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
 136struct 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"
 147
 148#define TARGET_CLONE_BACKWARDS
 149