include/linux/fsl_hypervisor.h

   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