/* default linux values for the selectors */

#define __USER_CS	(0x23)

#define __USER_DS	(0x2B)

struct target_pt_regs {

	long ebx;

	long ecx;

	long edx;

	long esi;

	long edi;

	long ebp;

	long eax;

	int  xds;

	int  xes;

	long orig_eax;

	long eip;

	int  xcs;

	long eflags;

	long esp;

	int  xss;

};

/* ioctls */

#define TARGET_LDT_ENTRIES      8192

#define TARGET_LDT_ENTRY_SIZE	8

#define TARGET_GDT_ENTRIES             9

#define TARGET_GDT_ENTRY_TLS_ENTRIES   3

#define TARGET_GDT_ENTRY_TLS_MIN       6

#define TARGET_GDT_ENTRY_TLS_MAX       (TARGET_GDT_ENTRY_TLS_MIN + TARGET_GDT_ENTRY_TLS_ENTRIES - 1)

struct target_modify_ldt_ldt_s {

    unsigned int  entry_number;

    abi_ulong base_addr;

    unsigned int limit;

    unsigned int flags;

};

/* vm86 defines */

#define TARGET_BIOSSEG		0x0f000

#define TARGET_CPU_086		0

#define TARGET_CPU_186		1

#define TARGET_CPU_286		2

#define TARGET_CPU_386		3

#define TARGET_CPU_486		4

#define TARGET_CPU_586		5

#define TARGET_VM86_SIGNAL	0	/* return due to signal */

#define TARGET_VM86_UNKNOWN	1	/* unhandled GP fault - IO-instruction or similar */

#define TARGET_VM86_INTx	2	/* int3/int x instruction (ARG = x) */

#define TARGET_VM86_STI	3	/* sti/popf/iret instruction enabled virtual interrupts */

/*

 * Additional return values when invoking new vm86()

 */

#define TARGET_VM86_PICRETURN	4	/* return due to pending PIC request */

#define TARGET_VM86_TRAP	6	/* return due to DOS-debugger request */

/*

 * function codes when invoking new vm86()

 */

#define TARGET_VM86_PLUS_INSTALL_CHECK	0

#define TARGET_VM86_ENTER		1

#define TARGET_VM86_ENTER_NO_BYPASS	2

#define	TARGET_VM86_REQUEST_IRQ	3

#define TARGET_VM86_FREE_IRQ		4

#define TARGET_VM86_GET_IRQ_BITS	5

#define TARGET_VM86_GET_AND_RESET_IRQ	6

/*

 * This is the stack-layout seen by the user space program when we have

 * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout

 * is 'kernel_vm86_regs' (see below).

 */

struct target_vm86_regs {

/*

 * normal regs, with special meaning for the segment descriptors..

 */

	abi_long ebx;

	abi_long ecx;

	abi_long edx;

	abi_long esi;

	abi_long edi;

	abi_long ebp;

	abi_long eax;

	abi_long __null_ds;

	abi_long __null_es;

	abi_long __null_fs;

	abi_long __null_gs;

	abi_long orig_eax;

	abi_long eip;

	unsigned short cs, __csh;

	abi_long eflags;

	abi_long esp;

	unsigned short ss, __ssh;

/*

 * these are specific to v86 mode:

 */

	unsigned short es, __esh;

	unsigned short ds, __dsh;

	unsigned short fs, __fsh;

	unsigned short gs, __gsh;

};

struct target_revectored_struct {

	abi_ulong __map[8];			/* 256 bits */

};

struct target_vm86_struct {

	struct target_vm86_regs regs;

	abi_ulong flags;

	abi_ulong screen_bitmap;

	abi_ulong cpu_type;

	struct target_revectored_struct int_revectored;

	struct target_revectored_struct int21_revectored;

};

/*

 * flags masks

 */

#define TARGET_VM86_SCREEN_BITMAP	0x0001

struct target_vm86plus_info_struct {

        abi_ulong flags;

#define TARGET_force_return_for_pic (1 << 0)

#define TARGET_vm86dbg_active       (1 << 1)  /* for debugger */

#define TARGET_vm86dbg_TFpendig     (1 << 2)  /* for debugger */

#define TARGET_is_vm86pus           (1 << 31) /* for vm86 internal use */

	unsigned char vm86dbg_intxxtab[32];   /* for debugger */

};

struct target_vm86plus_struct {

	struct target_vm86_regs regs;

	abi_ulong flags;

	abi_ulong screen_bitmap;

	abi_ulong cpu_type;

	struct target_revectored_struct int_revectored;

	struct target_revectored_struct int21_revectored;

	struct target_vm86plus_info_struct vm86plus;

};

#define UNAME_MACHINE "i686"