bsd-user/i386/target_syscall.h

   1 /*
   2  *  i386 system call definitions
   3  *
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  17  */
  18 #ifndef TARGET_SYSCALL_H
  19 #define TARGET_SYSCALL_H
  20
  21 /* default linux values for the selectors */
  22 #define __USER_CS       (0x23)
  23 #define __USER_DS       (0x2B)
  24
  25 struct target_pt_regs {
  26         long ebx;
  27         long ecx;
  28         long edx;
  29         long esi;
  30         long edi;
  31         long ebp;
  32         long eax;
  33         int  xds;
  34         int  xes;
  35         long orig_eax;
  36         long eip;
  37         int  xcs;
  38         long eflags;
  39         long esp;
  40         int  xss;
  41 };
  42
  43 /* ioctls */
  44
  45 #define TARGET_LDT_ENTRIES      8192
  46 #define TARGET_LDT_ENTRY_SIZE   8
  47
  48 #define TARGET_GDT_ENTRIES             9
  49 #define TARGET_GDT_ENTRY_TLS_ENTRIES   3
  50 #define TARGET_GDT_ENTRY_TLS_MIN       6
  51 #define TARGET_GDT_ENTRY_TLS_MAX       (TARGET_GDT_ENTRY_TLS_MIN + TARGET_GDT_ENTRY_TLS_ENTRIES - 1)
  52
  53 struct target_modify_ldt_ldt_s {
  54     unsigned int  entry_number;
  55     abi_ulong base_addr;
  56     unsigned int limit;
  57     unsigned int flags;
  58 };
  59
  60 /* vm86 defines */
  61
  62 #define TARGET_BIOSSEG          0x0f000
  63
  64 #define TARGET_CPU_086          0
  65 #define TARGET_CPU_186          1
  66 #define TARGET_CPU_286          2
  67 #define TARGET_CPU_386          3
  68 #define TARGET_CPU_486          4
  69 #define TARGET_CPU_586          5
  70
  71 #define TARGET_VM86_SIGNAL      0       /* return due to signal */
  72 #define TARGET_VM86_UNKNOWN     1       /* unhandled GP fault - IO-instruction or similar */
  73 #define TARGET_VM86_INTx        2       /* int3/int x instruction (ARG = x) */
  74 #define TARGET_VM86_STI 3       /* sti/popf/iret instruction enabled virtual interrupts */
  75
  76 /*
  77  * Additional return values when invoking new vm86()
  78  */
  79 #define TARGET_VM86_PICRETURN   4       /* return due to pending PIC request */
  80 #define TARGET_VM86_TRAP        6       /* return due to DOS-debugger request */
  81
  82 /*
  83  * function codes when invoking new vm86()
  84  */
  85 #define TARGET_VM86_PLUS_INSTALL_CHECK  0
  86 #define TARGET_VM86_ENTER               1
  87 #define TARGET_VM86_ENTER_NO_BYPASS     2
  88 #define TARGET_VM86_REQUEST_IRQ 3
  89 #define TARGET_VM86_FREE_IRQ            4
  90 #define TARGET_VM86_GET_IRQ_BITS        5
  91 #define TARGET_VM86_GET_AND_RESET_IRQ   6
  92
  93 /*
  94  * This is the stack-layout seen by the user space program when we have
  95  * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
  96  * is 'kernel_vm86_regs' (see below).
  97  */
  98
  99 struct target_vm86_regs {
 100 /*
 101  * normal regs, with special meaning for the segment descriptors..
 102  */
 103         abi_long ebx;
 104         abi_long ecx;
 105         abi_long edx;
 106         abi_long esi;
 107         abi_long edi;
 108         abi_long ebp;
 109         abi_long eax;
 110         abi_long __null_ds;
 111         abi_long __null_es;
 112         abi_long __null_fs;
 113         abi_long __null_gs;
 114         abi_long orig_eax;
 115         abi_long eip;
 116         unsigned short cs, __csh;
 117         abi_long eflags;
 118         abi_long esp;
 119         unsigned short ss, __ssh;
 120 /*
 121  * these are specific to v86 mode:
 122  */
 123         unsigned short es, __esh;
 124         unsigned short ds, __dsh;
 125         unsigned short fs, __fsh;
 126         unsigned short gs, __gsh;
 127 };
 128
 129 struct target_revectored_struct {
 130         abi_ulong __map[8];                     /* 256 bits */
 131 };
 132
 133 struct target_vm86_struct {
 134         struct target_vm86_regs regs;
 135         abi_ulong flags;
 136         abi_ulong screen_bitmap;
 137         abi_ulong cpu_type;
 138         struct target_revectored_struct int_revectored;
 139         struct target_revectored_struct int21_revectored;
 140 };
 141
 142 /*
 143  * flags masks
 144  */
 145 #define TARGET_VM86_SCREEN_BITMAP       0x0001
 146
 147 struct target_vm86plus_info_struct {
 148         abi_ulong flags;
 149 #define TARGET_force_return_for_pic (1 << 0)
 150 #define TARGET_vm86dbg_active       (1 << 1)  /* for debugger */
 151 #define TARGET_vm86dbg_TFpendig     (1 << 2)  /* for debugger */
 152 #define TARGET_is_vm86pus           (1 << 31) /* for vm86 internal use */
 153         unsigned char vm86dbg_intxxtab[32];   /* for debugger */
 154 };
 155
 156 struct target_vm86plus_struct {
 157         struct target_vm86_regs regs;
 158         abi_ulong flags;
 159         abi_ulong screen_bitmap;
 160         abi_ulong cpu_type;
 161         struct target_revectored_struct int_revectored;
 162         struct target_revectored_struct int21_revectored;
 163         struct target_vm86plus_info_struct vm86plus;
 164 };
 165
 166 /* FreeBSD sysarch(2) */
 167 #define TARGET_FREEBSD_I386_GET_LDT     0
 168 #define TARGET_FREEBSD_I386_SET_LDT     1
 169                                 /* I386_IOPL */
 170 #define TARGET_FREEBSD_I386_GET_IOPERM  3
 171 #define TARGET_FREEBSD_I386_SET_IOPERM  4
 172                                 /* xxxxx */
 173 #define TARGET_FREEBSD_I386_VM86        6
 174 #define TARGET_FREEBSD_I386_GET_FSBASE  7
 175 #define TARGET_FREEBSD_I386_SET_FSBASE  8
 176 #define TARGET_FREEBSD_I386_GET_GSBASE  9
 177 #define TARGET_FREEBSD_I386_SET_GSBASE  10
 178
 179
 180 #define UNAME_MACHINE "i386"
 181 #define TARGET_HW_MACHINE UNAME_MACHINE
 182 #define TARGET_HW_MACHINE_ARCH UNAME_MACHINE
 183
 184 #endif /* TARGET_SYSCALL_H */