0461d5a699
Next commit will convert the query-status command to use the RunState type as generated by the QAPI. In order to "transparently" replace the current enum by the QAPI one, we have to make some changes to some enum values. As the changes are simple renames, I'll do them in one shot. The changes are: - Rename the prefix from RSTATE_ to RUN_STATE_ - RUN_STATE_SAVEVM to RUN_STATE_SAVE_VM - RUN_STATE_IN_MIGRATE to RUN_STATE_INMIGRATE - RUN_STATE_PANICKED to RUN_STATE_INTERNAL_ERROR - RUN_STATE_POST_MIGRATE to RUN_STATE_POSTMIGRATE - RUN_STATE_PRE_LAUNCH to RUN_STATE_PRELAUNCH - RUN_STATE_PRE_MIGRATE to RUN_STATE_PREMIGRATE - RUN_STATE_RESTORE to RUN_STATE_RESTORE_VM - RUN_STATE_PRE_MIGRATE to RUN_STATE_FINISH_MIGRATE Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
148 lines
4.2 KiB
C
148 lines
4.2 KiB
C
/*
|
|
* Virtual hardware watchdog.
|
|
*
|
|
* Copyright (C) 2009 Red Hat Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* By Richard W.M. Jones (rjones@redhat.com).
|
|
*/
|
|
|
|
#include "qemu-common.h"
|
|
#include "qemu-option.h"
|
|
#include "qemu-config.h"
|
|
#include "qemu-queue.h"
|
|
#include "qemu-objects.h"
|
|
#include "monitor.h"
|
|
#include "sysemu.h"
|
|
#include "hw/watchdog.h"
|
|
|
|
/* Possible values for action parameter. */
|
|
#define WDT_RESET 1 /* Hard reset. */
|
|
#define WDT_SHUTDOWN 2 /* Shutdown. */
|
|
#define WDT_POWEROFF 3 /* Quit. */
|
|
#define WDT_PAUSE 4 /* Pause. */
|
|
#define WDT_DEBUG 5 /* Prints a message and continues running. */
|
|
#define WDT_NONE 6 /* Do nothing. */
|
|
|
|
static int watchdog_action = WDT_RESET;
|
|
static QLIST_HEAD(watchdog_list, WatchdogTimerModel) watchdog_list;
|
|
|
|
void watchdog_add_model(WatchdogTimerModel *model)
|
|
{
|
|
QLIST_INSERT_HEAD(&watchdog_list, model, entry);
|
|
}
|
|
|
|
/* Returns:
|
|
* 0 = continue
|
|
* 1 = exit program with error
|
|
* 2 = exit program without error
|
|
*/
|
|
int select_watchdog(const char *p)
|
|
{
|
|
WatchdogTimerModel *model;
|
|
QemuOpts *opts;
|
|
|
|
/* -watchdog ? lists available devices and exits cleanly. */
|
|
if (strcmp(p, "?") == 0) {
|
|
QLIST_FOREACH(model, &watchdog_list, entry) {
|
|
fprintf(stderr, "\t%s\t%s\n",
|
|
model->wdt_name, model->wdt_description);
|
|
}
|
|
return 2;
|
|
}
|
|
|
|
QLIST_FOREACH(model, &watchdog_list, entry) {
|
|
if (strcasecmp(model->wdt_name, p) == 0) {
|
|
/* add the device */
|
|
opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
|
|
qemu_opt_set(opts, "driver", p);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
fprintf(stderr, "Unknown -watchdog device. Supported devices are:\n");
|
|
QLIST_FOREACH(model, &watchdog_list, entry) {
|
|
fprintf(stderr, "\t%s\t%s\n",
|
|
model->wdt_name, model->wdt_description);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int select_watchdog_action(const char *p)
|
|
{
|
|
if (strcasecmp(p, "reset") == 0)
|
|
watchdog_action = WDT_RESET;
|
|
else if (strcasecmp(p, "shutdown") == 0)
|
|
watchdog_action = WDT_SHUTDOWN;
|
|
else if (strcasecmp(p, "poweroff") == 0)
|
|
watchdog_action = WDT_POWEROFF;
|
|
else if (strcasecmp(p, "pause") == 0)
|
|
watchdog_action = WDT_PAUSE;
|
|
else if (strcasecmp(p, "debug") == 0)
|
|
watchdog_action = WDT_DEBUG;
|
|
else if (strcasecmp(p, "none") == 0)
|
|
watchdog_action = WDT_NONE;
|
|
else
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void watchdog_mon_event(const char *action)
|
|
{
|
|
QObject *data;
|
|
|
|
data = qobject_from_jsonf("{ 'action': %s }", action);
|
|
monitor_protocol_event(QEVENT_WATCHDOG, data);
|
|
qobject_decref(data);
|
|
}
|
|
|
|
/* This actually performs the "action" once a watchdog has expired,
|
|
* ie. reboot, shutdown, exit, etc.
|
|
*/
|
|
void watchdog_perform_action(void)
|
|
{
|
|
switch(watchdog_action) {
|
|
case WDT_RESET: /* same as 'system_reset' in monitor */
|
|
watchdog_mon_event("reset");
|
|
qemu_system_reset_request();
|
|
break;
|
|
|
|
case WDT_SHUTDOWN: /* same as 'system_powerdown' in monitor */
|
|
watchdog_mon_event("shutdown");
|
|
qemu_system_powerdown_request();
|
|
break;
|
|
|
|
case WDT_POWEROFF: /* same as 'quit' command in monitor */
|
|
watchdog_mon_event("poweroff");
|
|
exit(0);
|
|
break;
|
|
|
|
case WDT_PAUSE: /* same as 'stop' command in monitor */
|
|
watchdog_mon_event("pause");
|
|
vm_stop(RUN_STATE_WATCHDOG);
|
|
break;
|
|
|
|
case WDT_DEBUG:
|
|
watchdog_mon_event("debug");
|
|
fprintf(stderr, "watchdog: timer fired\n");
|
|
break;
|
|
|
|
case WDT_NONE:
|
|
watchdog_mon_event("none");
|
|
break;
|
|
}
|
|
}
|