xenstored_dev.c File Reference

#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/uio.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/module.h>
#include <xen/xen-os.h>
#include <xen/hypervisor.h>
#include <xen/xenstore/xenstorevar.h>
#include <vm/vm.h>
#include <vm/pmap.h>

Include dependency graph for xenstored_dev.c:

Go to the source code of this file.

Macros
#define	XSD_READ_SIZE   20

Functions
	__FBSDID ("$FreeBSD$")
static int	xsd_dev_read (struct cdev *dev, struct uio *uio, int ioflag)
static int	xsd_dev_mmap (struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot, vm_memattr_t *memattr)
static void	xsd_dev_identify (driver_t *driver __unused, device_t parent)
	Identify instances of this device type in the system. More...
static int	xsd_dev_probe (device_t dev)
	Probe for the existence of the Xenstored device. More...
static int	xsd_dev_attach (device_t dev)
	Attach the Xenstored device. More...
	DEFINE_CLASS_0 (xsd_dev, xsd_dev_driver, xsd_dev_methods, 0)
	DRIVER_MODULE (xsd_dev, xenpv, xsd_dev_driver, xsd_dev_devclass, NULL, NULL)

Variables
static struct cdevsw	xsd_dev_cdevsw
static device_method_t	xsd_dev_methods []
devclass_t	xsd_dev_devclass

Macro Definition Documentation

XSD_READ_SIZE

#define XSD_READ_SIZE   20

Definition at line 50 of file xenstored_dev.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

DEFINE_CLASS_0()

DEFINE_CLASS_0	(	xsd_dev	,
		xsd_dev_driver	,
		xsd_dev_methods	,
		0
	)

DRIVER_MODULE()

DRIVER_MODULE	(	xsd_dev	,
		xenpv	,
		xsd_dev_driver	,
		xsd_dev_devclass	,
		NULL	,
		NULL
	)

xsd_dev_attach()

static int xsd_dev_attach ( device_t  dev )

static

Attach the Xenstored device.

Parameters

dev	NewBus device_t for this instance.

Returns

On success, 0. Otherwise an errno value indicating the type of failure.

Definition at line 138 of file xenstored_dev.c.

References xsd_dev_cdevsw.

xsd_dev_identify()

static void xsd_dev_identify ( driver_t *driver  __unused, device_t  parent  )

static

Identify instances of this device type in the system.

Parameters

driver	The driver performing this identify action.
parent	The NewBus parent device for any devices this method adds.

Definition at line 101 of file xenstored_dev.c.

References xs_initialized().

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xsd_dev_mmap()

static int xsd_dev_mmap ( struct cdev *  dev, vm_ooffset_t  offset, vm_paddr_t *  paddr, int  nprot, vm_memattr_t *  memattr  )

static

Definition at line 81 of file xenstored_dev.c.

References xs_address().

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xsd_dev_probe()

static int xsd_dev_probe ( device_t  dev )

static

Probe for the existence of the Xenstored device.

Parameters

dev	NewBus device_t for this instance.

Returns

Always returns 0 indicating success.

Definition at line 122 of file xenstored_dev.c.

xsd_dev_read()

static int xsd_dev_read ( struct cdev *  dev, struct uio *  uio, int  ioflag  )

static

Definition at line 64 of file xenstored_dev.c.

References xs_evtchn(), and XSD_READ_SIZE.

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Variable Documentation

xsd_dev_cdevsw

struct cdevsw xsd_dev_cdevsw

static

Initial value:

= {
        .d_version = D_VERSION,
        .d_read = xsd_dev_read,
        .d_mmap = xsd_dev_mmap,
        .d_name = "xsd_dev",
}

Definition at line 56 of file xenstored_dev.c.

Referenced by xsd_dev_attach().

xsd_dev_devclass

devclass_t xsd_dev_devclass

Definition at line 161 of file xenstored_dev.c.

xsd_dev_methods

device_method_t xsd_dev_methods[]

static

Initial value:

= {
        
        DEVMETHOD(device_identify,      xsd_dev_identify),
        DEVMETHOD(device_probe,         xsd_dev_probe),
        DEVMETHOD(device_attach,        xsd_dev_attach),
 
        DEVMETHOD_END
}

Definition at line 151 of file xenstored_dev.c.