linux/include/linux/fsl_hypervisor.h
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   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 */
  55int 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 */
  61int fsl_hv_failover_unregister(struct notifier_block *nb);
  62
  63#endif
  64
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