desc_defs.h File Reference

#include <linux/types.h>

Go to the source code of this file.

Data Structures
struct	desc_struct
struct	gate_struct64
struct	ldttss_desc64
struct	desc_ptr

Macros
#define	GDT_ENTRY_INIT(flags, base, limit)
#define	PTR_LOW(x)   ((unsigned long long)(x) & 0xFFFF)
#define	PTR_MIDDLE(x)   (((unsigned long long)(x) >> 16) & 0xFFFF)
#define	PTR_HIGH(x)   ((unsigned long long)(x) >> 32)
#define	gate_offset(g)   (((g).b & 0xffff0000) | ((g).a & 0x0000ffff))
#define	gate_segment(g)   ((g).a >> 16)

Typedefs
typedef struct desc_struct	gate_desc
typedef struct desc_struct	ldt_desc
typedef struct desc_struct	tss_desc

Enumerations
enum	{ GATE_INTERRUPT = 0xE, GATE_TRAP = 0xF, GATE_CALL = 0xC, GATE_TASK = 0x5 }
enum	{ DESC_TSS = 0x9, DESC_LDT = 0x2, DESCTYPE_S = 0x10 }

Functions
struct desc_struct	__attribute__ ((packed))

Variables
union {
struct {
unsigned int   a
unsigned int   b
}
struct {
u16   limit0
u16   base0
unsigned   base1: 8
unsigned   type: 4
unsigned   s: 1
unsigned   dpl: 2
unsigned   p: 1
unsigned   limit: 4
unsigned   avl: 1
unsigned   l: 1
unsigned   d: 1
unsigned   g: 1
unsigned   base2: 8
}
};
enum { ... }	__attribute__
u16	offset_low
u16	segment
unsigned	ist
unsigned	zero0
u16	offset_middle
u32	offset_high
u32	zero1
unsigned	limit1
u32	base3
unsigned short	size
unsigned long	address

Macro Definition Documentation

#define gate_offset

(

g

)

(((g).b & 0xffff0000) | ((g).a & 0x0000ffff))

Definition at line 90 of file desc_defs.h.

#define gate_segment

(

g

)

((g).a >> 16)

Definition at line 91 of file desc_defs.h.

#define GDT_ENTRY_INIT	(		flags,
			base,
			limit
	)

Value:

{ { { \
        .a = ((limit) & 0xffff) | (((base) & 0xffff) << 16), \
        .b = (((base) & 0xff0000) >> 16) | (((flags) & 0xf0ff) << 8) | \
            ((limit) & 0xf0000) | ((base) & 0xff000000), \
    } } }

Definition at line 37 of file desc_defs.h.

#define PTR_HIGH

(

x

)

((unsigned long long)(x) >> 32)

Definition at line 62 of file desc_defs.h.

#define PTR_LOW

(

x

)

((unsigned long long)(x) & 0xFFFF)

Definition at line 60 of file desc_defs.h.

#define PTR_MIDDLE

(

x

)

(((unsigned long long)(x) >> 16) & 0xFFFF)

Definition at line 61 of file desc_defs.h.

Typedef Documentation

typedef struct desc_struct gate_desc

Definition at line 87 of file desc_defs.h.

typedef struct desc_struct ldt_desc

Definition at line 88 of file desc_defs.h.

typedef struct desc_struct tss_desc

Definition at line 89 of file desc_defs.h.

Enumeration Type Documentation

anonymous enum

Enumerator:

GATE_INTERRUPT
GATE_TRAP
GATE_CALL
GATE_TASK

Definition at line 43 of file desc_defs.h.

anonymous enum

Enumerator:

DESC_TSS
DESC_LDT
DESCTYPE_S

Definition at line 64 of file desc_defs.h.

Function Documentation

struct desc_struct __attribute__ ( (packed)  )

read

Definition at line 171 of file esd_usb2.c.

Variable Documentation

union { ... }

enum { ... } __attribute__

unsigned int a

Definition at line 38 of file desc_defs.h.

unsigned long address

Definition at line 99 of file desc_defs.h.

unsigned avl

Definition at line 45 of file desc_defs.h.

unsigned int b

Definition at line 39 of file desc_defs.h.

u16 base0

Definition at line 43 of file desc_defs.h.

unsigned base1

Definition at line 44 of file desc_defs.h.

unsigned base2

Definition at line 45 of file desc_defs.h.

u32 base3

Definition at line 83 of file desc_defs.h.

unsigned d

Definition at line 45 of file desc_defs.h.

unsigned dpl

Definition at line 44 of file desc_defs.h.

unsigned g

Definition at line 45 of file desc_defs.h.

unsigned ist

Definition at line 61 of file desc_defs.h.

unsigned l

Definition at line 45 of file desc_defs.h.

unsigned limit

Definition at line 45 of file desc_defs.h.

u16 limit0

Definition at line 42 of file desc_defs.h.

unsigned limit1

Definition at line 82 of file desc_defs.h.

u32 offset_high

Definition at line 63 of file desc_defs.h.

u16 offset_low

Definition at line 59 of file desc_defs.h.

u16 offset_middle

Definition at line 62 of file desc_defs.h.

unsigned p

Definition at line 44 of file desc_defs.h.

unsigned s

Definition at line 44 of file desc_defs.h.

u16 segment

Definition at line 60 of file desc_defs.h.

unsigned short size

Definition at line 98 of file desc_defs.h.

unsigned type

Definition at line 44 of file desc_defs.h.

unsigned zero0

Definition at line 61 of file desc_defs.h.

unsigned char zero1

Definition at line 64 of file desc_defs.h.