forked from Minki/linux
4bac07c993
This communicates with the machine control software via a registry residing in a controlling virtual machine. This allows dynamic creation, destruction and modification of virtual device configurations (network devices, block devices and CPUS, to name some examples). [ Greg, would you mind giving this a review? Thanks -J ] Signed-off-by: Ian Pratt <ian.pratt@xensource.com> Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk> Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Cc: Greg KH <greg@kroah.com>
75 lines
3.1 KiB
C
75 lines
3.1 KiB
C
/******************************************************************************
|
|
* xenbus_probe.h
|
|
*
|
|
* Talks to Xen Store to figure out what devices we have.
|
|
*
|
|
* Copyright (C) 2005 Rusty Russell, IBM Corporation
|
|
* Copyright (C) 2005 XenSource Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License version 2
|
|
* as published by the Free Software Foundation; or, when distributed
|
|
* separately from the Linux kernel or incorporated into other
|
|
* software packages, subject to the following license:
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this source file (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy, modify,
|
|
* merge, publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _XENBUS_PROBE_H
|
|
#define _XENBUS_PROBE_H
|
|
|
|
#ifdef CONFIG_XEN_BACKEND
|
|
extern void xenbus_backend_suspend(int (*fn)(struct device *, void *));
|
|
extern void xenbus_backend_resume(int (*fn)(struct device *, void *));
|
|
extern void xenbus_backend_probe_and_watch(void);
|
|
extern int xenbus_backend_bus_register(void);
|
|
extern void xenbus_backend_bus_unregister(void);
|
|
#else
|
|
static inline void xenbus_backend_suspend(int (*fn)(struct device *, void *)) {}
|
|
static inline void xenbus_backend_resume(int (*fn)(struct device *, void *)) {}
|
|
static inline void xenbus_backend_probe_and_watch(void) {}
|
|
static inline int xenbus_backend_bus_register(void) { return 0; }
|
|
static inline void xenbus_backend_bus_unregister(void) {}
|
|
#endif
|
|
|
|
struct xen_bus_type
|
|
{
|
|
char *root;
|
|
unsigned int levels;
|
|
int (*get_bus_id)(char bus_id[BUS_ID_SIZE], const char *nodename);
|
|
int (*probe)(const char *type, const char *dir);
|
|
struct bus_type bus;
|
|
};
|
|
|
|
extern int xenbus_match(struct device *_dev, struct device_driver *_drv);
|
|
extern int xenbus_dev_probe(struct device *_dev);
|
|
extern int xenbus_dev_remove(struct device *_dev);
|
|
extern int xenbus_register_driver_common(struct xenbus_driver *drv,
|
|
struct xen_bus_type *bus,
|
|
struct module *owner,
|
|
const char *mod_name);
|
|
extern int xenbus_probe_node(struct xen_bus_type *bus,
|
|
const char *type,
|
|
const char *nodename);
|
|
extern int xenbus_probe_devices(struct xen_bus_type *bus);
|
|
|
|
extern void xenbus_dev_changed(const char *node, struct xen_bus_type *bus);
|
|
|
|
#endif
|