kern_sharedpage.c File Reference

#include <sys/cdefs.h>
#include "opt_vm.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/rwlock.h>
#include <sys/stddef.h>
#include <sys/sysent.h>
#include <sys/sysctl.h>
#include <sys/vdso.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <vm/vm_extern.h>
#include <vm/vm_kern.h>
#include <vm/vm_map.h>
#include <vm/vm_object.h>
#include <vm/vm_page.h>
#include <vm/vm_pager.h>

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Functions
	__FBSDID ("$FreeBSD$")
void	shared_page_write (int base, int size, const void *data)
static int	shared_page_alloc_locked (int size, int align)
int	shared_page_alloc (int size, int align)
int	shared_page_fill (int size, int align, const void *data)
static void	shared_page_init (void *dummy __unused)
	SYSINIT (shp, SI_SUB_EXEC, SI_ORDER_FIRST,(sysinit_cfunc_t) shared_page_init, NULL)
static void	timehands_update (struct vdso_sv_tk *svtk)
void	timekeep_push_vdso (void)
struct vdso_sv_tk *	alloc_sv_tk (void)
void	exec_sysvec_init (void *param)
void	exec_sysvec_init_secondary (struct sysentvec *sv, struct sysentvec *sv2)

Variables
static struct sx	shared_page_alloc_sx
static vm_object_t	shared_page_obj
static int	shared_page_free
char *	shared_page_mapping
static struct vdso_sv_tk *	host_svtk

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

alloc_sv_tk()

struct vdso_sv_tk * alloc_sv_tk

(

void

)

Definition at line 229 of file kern_sharedpage.c.

References malloc(), shared_page_alloc(), shared_page_write(), and timekeep_push_vdso().

Referenced by exec_sysvec_init().

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exec_sysvec_init()

void exec_sysvec_init

(

void *

param

)

Definition at line 305 of file kern_sharedpage.c.

References alloc_sv_tk(), flags, host_svtk, panic(), res, shared_page_fill(), shared_page_mapping, and shared_page_obj.

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exec_sysvec_init_secondary()

void exec_sysvec_init_secondary	(	struct sysentvec *	sv,
		struct sysentvec *	sv2
	)

Definition at line 385 of file kern_sharedpage.c.

shared_page_alloc()

int shared_page_alloc	(	int	size,
		int	align
	)

Definition at line 93 of file kern_sharedpage.c.

References res, shared_page_alloc_locked(), and shared_page_alloc_sx.

Referenced by alloc_sv_tk().

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shared_page_alloc_locked()

static int shared_page_alloc_locked ( int  size, int  align  )

static

Definition at line 80 of file kern_sharedpage.c.

References res, shared_page_free, and shared_page_obj.

Referenced by shared_page_alloc(), and shared_page_fill().

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shared_page_fill()

int shared_page_fill	(	int	size,
		int	align,
		const void *	data
	)

Definition at line 104 of file kern_sharedpage.c.

References data, res, shared_page_alloc_locked(), shared_page_alloc_sx, and shared_page_write().

Referenced by exec_sysvec_init().

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shared_page_init()

static void shared_page_init ( void *dummy  __unused )

static

Definition at line 117 of file kern_sharedpage.c.

References addr, shared_page_alloc_sx, shared_page_mapping, and shared_page_obj.

shared_page_write()

void shared_page_write	(	int	base,
		int	size,
		const void *	data
	)

Definition at line 73 of file kern_sharedpage.c.

References data, and shared_page_mapping.

Referenced by alloc_sv_tk(), and shared_page_fill().

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SYSINIT()

SYSINIT	(	shp	,
		SI_SUB_EXEC	,
		SI_ORDER_FIRST	,
		(sysinit_cfunc_t)	shared_page_init,
		NULL
	)

timehands_update()

static void timehands_update ( struct vdso_sv_tk *  svtk )

static

Definition at line 146 of file kern_sharedpage.c.

References shared_page_mapping, and tc_fill_vdso_timehands().

Referenced by timekeep_push_vdso().

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timekeep_push_vdso()

void timekeep_push_vdso

(

void

)

Definition at line 217 of file kern_sharedpage.c.

References host_svtk, and timehands_update().

Referenced by alloc_sv_tk(), and tc_windup().

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Variable Documentation

host_svtk

struct vdso_sv_tk* host_svtk

static

Definition at line 211 of file kern_sharedpage.c.

Referenced by exec_sysvec_init(), and timekeep_push_vdso().

shared_page_alloc_sx

struct sx shared_page_alloc_sx

static

Definition at line 59 of file kern_sharedpage.c.

Referenced by shared_page_alloc(), shared_page_fill(), and shared_page_init().

shared_page_free

int shared_page_free

static

Definition at line 61 of file kern_sharedpage.c.

Referenced by shared_page_alloc_locked().

shared_page_mapping

char* shared_page_mapping

Definition at line 62 of file kern_sharedpage.c.

Referenced by exec_sysvec_init(), shared_page_init(), shared_page_write(), and timehands_update().

shared_page_obj

vm_object_t shared_page_obj

static

Definition at line 60 of file kern_sharedpage.c.

Referenced by exec_sysvec_init(), shared_page_alloc_locked(), and shared_page_init().