watchdog: introduction of get_watchdog_action

Add get_watchdog_action(void) to allow access to the configured action.

Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Bo Tu <tubo@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

hw/watchdog/watchdog.c

@@ -29,15 +29,6 @@
 #include "qapi-event.h"
 #include "hw/nmi.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. */
-#define WDT_NMI          7	/* Inject nmi into the guest */
-
 static int watchdog_action = WDT_RESET;
 static QLIST_HEAD(watchdog_list, WatchdogTimerModel) watchdog_list;
 
@@ -105,6 +96,11 @@ int select_watchdog_action(const char *p)
     return 0;
 }
 
+int get_watchdog_action(void)
+{
+    return watchdog_action;
+}
+
 /* This actually performs the "action" once a watchdog has expired,
  * ie. reboot, shutdown, exit, etc.
  */

include/sysemu/watchdog.h

@@ -24,6 +24,15 @@
 
 #include "qemu/queue.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. */
+#define WDT_NMI          7      /* Inject nmi into the guest. */
+
 struct WatchdogTimerModel {
     QLIST_ENTRY(WatchdogTimerModel) entry;
 
@@ -37,6 +46,7 @@ typedef struct WatchdogTimerModel WatchdogTimerModel;
 /* in hw/watchdog.c */
 int select_watchdog(const char *p);
 int select_watchdog_action(const char *action);
+int get_watchdog_action(void);
 void watchdog_add_model(WatchdogTimerModel *model);
 void watchdog_perform_action(void);