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