1 /*
2  * Freescale hypervisor ioctl and kernel interface
3  *
4  * Copyright (C) 2008-2011 Freescale Semiconductor, Inc.
5  * Author: Timur Tabi <timur@freescale.com>
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions are met:
9  *     * Redistributions of source code must retain the above copyright
10  *       notice, this list of conditions and the following disclaimer.
11  *     * Redistributions in binary form must reproduce the above copyright
12  *       notice, this list of conditions and the following disclaimer in the
13  *       documentation and/or other materials provided with the distribution.
14  *     * Neither the name of Freescale Semiconductor nor the
15  *       names of its contributors may be used to endorse or promote products
16  *       derived from this software without specific prior written permission.
17  *
18  *
19  * ALTERNATIVELY, this software may be distributed under the terms of the
20  * GNU General Public License ("GPL") as published by the Free Software
21  * Foundation, either version 2 of that License or (at your option) any
22  * later version.
23  *
24  * This software is provided by Freescale Semiconductor "as is" and any
25  * express or implied warranties, including, but not limited to, the implied
26  * warranties of merchantability and fitness for a particular purpose are
27  * disclaimed. In no event shall Freescale Semiconductor be liable for any
28  * direct, indirect, incidental, special, exemplary, or consequential damages
29  * (including, but not limited to, procurement of substitute goods or services;
30  * loss of use, data, or profits; or business interruption) however caused and
31  * on any theory of liability, whether in contract, strict liability, or tort
32  * (including negligence or otherwise) arising in any way out of the use of this
33  * software, even if advised of the possibility of such damage.
34  *
35  * This file is used by the Freescale hypervisor management driver.  It can
36  * also be included by applications that need to communicate with the driver
37  * via the ioctl interface.
38  */
39 #ifndef FSL_HYPERVISOR_H
40 #define FSL_HYPERVISOR_H
41 
42 #include <uapi/linux/fsl_hypervisor.h>
43 
44 
45 /**
46  * fsl_hv_event_register() - register a callback for failover events
47  * @nb: pointer to caller-supplied notifier_block structure
48  *
49  * This function is called by device drivers to register their callback
50  * functions for fail-over events.
51  *
52  * The caller should allocate a notifier_block object and initialize the
53  * 'priority' and 'notifier_call' fields.
54  */
55 int fsl_hv_failover_register(struct notifier_block *nb);
56 
57 /**
58  * fsl_hv_event_unregister() - unregister a callback for failover events
59  * @nb: the same 'nb' used in previous fsl_hv_failover_register call
60  */
61 int fsl_hv_failover_unregister(struct notifier_block *nb);
62 
63 #endif
64