Support for a new watchdog action inject-nmi

This patch provides support for a new watchdog action "inject-nmi" which
allows to define an inject of a non-maskable interrupt into a guest.
Signed-off-by: NBoris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: NDaniel Hansel <daniel.hansel@linux.vnet.ibm.com>
Reviewed-by: NStefan Zimmermann <stzi@linux.vnet.ibm.com>
Reviewed-by: NTony Krowiak <akrowiak@linux.vnet.ibm.com>

docs/formatdomain.html.in

@@ -5737,6 +5737,9 @@ qemu-kvm -net nic,model=? /dev/null
           <li>'none' &mdash; do nothing</li>
           <li>'dump' &mdash; automatically dump the guest
             <span class="since">Since 0.8.7</span></li>
+          <li>'inject-nmi' &mdash; inject a non-maskable interrupt
+            into the guest
+            <span class="since">Since 1.3.0</span></li>
         </ul>
         <p>
         Note 1: the 'shutdown' action requires that the guest

docs/schemas/domaincommon.rng

@@ -3272,6 +3272,7 @@
             <value>pause</value>
             <value>none</value>
             <value>dump</value>
+            <value>inject-nmi</value>
           </choice>
         </attribute>
       </optional>

include/libvirt/libvirt-domain.h

@@ -2842,6 +2842,7 @@ typedef enum {
     VIR_DOMAIN_EVENT_WATCHDOG_POWEROFF, /* Guest is forcibly powered off */
     VIR_DOMAIN_EVENT_WATCHDOG_SHUTDOWN, /* Guest is requested to gracefully shutdown */
     VIR_DOMAIN_EVENT_WATCHDOG_DEBUG,    /* No action, a debug message logged */
+    VIR_DOMAIN_EVENT_WATCHDOG_INJECTNMI,/* Inject a non-maskable interrupt into guest */
 
 # ifdef VIR_ENUM_SENTINELS
     VIR_DOMAIN_EVENT_WATCHDOG_LAST

src/conf/domain_conf.c

@@ -506,7 +506,8 @@ VIR_ENUM_IMPL(virDomainWatchdogAction, VIR_DOMAIN_WATCHDOG_ACTION_LAST,
               "poweroff",
               "pause",
               "dump",
-              "none")
+              "none",
+              "inject-nmi")
 
 VIR_ENUM_IMPL(virDomainVideo, VIR_DOMAIN_VIDEO_TYPE_LAST,
               "vga",

src/conf/domain_conf.h

@@ -1315,6 +1315,7 @@ typedef enum {
     VIR_DOMAIN_WATCHDOG_ACTION_PAUSE,
     VIR_DOMAIN_WATCHDOG_ACTION_DUMP,
     VIR_DOMAIN_WATCHDOG_ACTION_NONE,
+    VIR_DOMAIN_WATCHDOG_ACTION_INJECTNMI,
 
     VIR_DOMAIN_WATCHDOG_ACTION_LAST
 } virDomainWatchdogAction;

src/qemu/qemu_monitor_json.c

@@ -555,7 +555,7 @@ static void qemuMonitorJSONHandleRTCChange(qemuMonitorPtr mon, virJSONValuePtr d
 
 VIR_ENUM_DECL(qemuMonitorWatchdogAction)
 VIR_ENUM_IMPL(qemuMonitorWatchdogAction, VIR_DOMAIN_EVENT_WATCHDOG_LAST,
-              "none", "pause", "reset", "poweroff", "shutdown", "debug");
+              "none", "pause", "reset", "poweroff", "shutdown", "debug", "inject-nmi");
 
 static void qemuMonitorJSONHandleWatchdog(qemuMonitorPtr mon, virJSONValuePtr data)
 {

tools/virsh-domain.c

@@ -11703,7 +11703,8 @@ VIR_ENUM_IMPL(vshDomainEventWatchdog,
               N_("reset"),
               N_("poweroff"),
               N_("shutdown"),
-              N_("debug"))
+              N_("debug"),
+              N_("inject-nmi"))
 
 static const char *
 vshDomainEventWatchdogToString(int action)