1/* 2 * Virtual hardware watchdog. 3 * 4 * Copyright (C) 2009 Red Hat Inc. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 2 9 * of the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, see <http://www.gnu.org/licenses/>. 18 * 19 * By Richard W.M. Jones (rjones@redhat.com). 20 */ 21 22#ifndef QEMU_WATCHDOG_H 23#define QEMU_WATCHDOG_H 24 25#include "qemu/queue.h" 26 27/* Possible values for action parameter. */ 28#define WDT_RESET 1 /* Hard reset. */ 29#define WDT_SHUTDOWN 2 /* Shutdown. */ 30#define WDT_POWEROFF 3 /* Quit. */ 31#define WDT_PAUSE 4 /* Pause. */ 32#define WDT_DEBUG 5 /* Prints a message and continues running. */ 33#define WDT_NONE 6 /* Do nothing. */ 34#define WDT_NMI 7 /* Inject nmi into the guest. */ 35 36struct WatchdogTimerModel { 37 QLIST_ENTRY(WatchdogTimerModel) entry; 38 39 /* Short name of the device - used to select it on the command line. */ 40 const char *wdt_name; 41 /* Longer description (eg. manufacturer and full model number). */ 42 const char *wdt_description; 43}; 44typedef struct WatchdogTimerModel WatchdogTimerModel; 45 46/* in hw/watchdog.c */ 47int select_watchdog(const char *p); 48int select_watchdog_action(const char *action); 49int get_watchdog_action(void); 50void watchdog_add_model(WatchdogTimerModel *model); 51void watchdog_perform_action(void); 52 53#endif /* QEMU_WATCHDOG_H */ 54