mm_context.h File Reference

#include <linux/mutex.h>
#include <asm/ldt.h>

Go to the source code of this file.

Data Structures
struct	ldt_entry
struct	uml_ldt
struct	uml_arch_mm_context

Macros
#define	LDT_PAGES_MAX   ((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE)
#define	LDT_ENTRIES_PER_PAGE   (PAGE_SIZE/LDT_ENTRY_SIZE)
#define	LDT_DIRECT_ENTRIES   ((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE)
#define	LDT_entry_a(info)   ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff))
#define	LDT_entry_b(info)
#define	_LDT_empty(info)
#define	LDT_empty(info)   (_LDT_empty(info))

Typedefs
typedef struct uml_ldt	uml_ldt_t

Functions
void	ldt_host_info (void)

Macro Definition Documentation

#define _LDT_empty

(

info

)

Value:

(\
    (info)->base_addr   == 0    && \
    (info)->limit       == 0    && \
    (info)->contents    == 0    && \
    (info)->read_exec_only  == 1    && \
    (info)->seg_32bit   == 0    && \
    (info)->limit_in_pages  == 0    && \
    (info)->seg_not_present == 1    && \
    (info)->useable     == 0    )

Definition at line 52 of file mm_context.h.

#define LDT_DIRECT_ENTRIES   ((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE)

Definition at line 20 of file mm_context.h.

#define LDT_empty

(

info

)

(_LDT_empty(info))

Definition at line 65 of file mm_context.h.

#define LDT_ENTRIES_PER_PAGE   (PAGE_SIZE/LDT_ENTRY_SIZE)

Definition at line 18 of file mm_context.h.

#define LDT_entry_a

(

info

)

((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff))

Definition at line 37 of file mm_context.h.

#define LDT_entry_b

(

info

)

Value:

(((info)->base_addr & 0xff000000) | \
    (((info)->base_addr & 0x00ff0000) >> 16) | \
    ((info)->limit & 0xf0000) | \
    (((info)->read_exec_only ^ 1) << 9) | \
    ((info)->contents << 10) | \
    (((info)->seg_not_present ^ 1) << 15) | \
    ((info)->seg_32bit << 22) | \
    ((info)->limit_in_pages << 23) | \
    ((info)->useable << 20) | \
    0x7000)

Definition at line 40 of file mm_context.h.

#define LDT_PAGES_MAX   ((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE)

Definition at line 16 of file mm_context.h.

Typedef Documentation

typedef struct uml_ldt uml_ldt_t

Function Documentation

void ldt_host_info

(

void

)