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"