Use PAUSED state for domains that are starting up

When libvirt is starting a domain, it reports the state as SHUTOFF until
it's RUNNING. This is not ideal because domain startup may take a long
time (usually because of some configuration issues, firewalls blocking
access to network disks, etc.) and domain lists provided by libvirt look
awkward. One can see weird shutoff domains with IDs in a list of active
domains or even shutoff transient domains. In any case, it looks more
like a bug in libvirt than a normal state a domain goes through.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

include/libvirt/libvirt-domain.h

@@ -116,6 +116,7 @@ typedef enum {
     VIR_DOMAIN_PAUSED_SHUTTING_DOWN = 8, /* paused during shutdown process */
     VIR_DOMAIN_PAUSED_SNAPSHOT = 9,      /* paused while creating a snapshot */
     VIR_DOMAIN_PAUSED_CRASHED = 10,     /* paused due to a guest crash */
+    VIR_DOMAIN_PAUSED_STARTING_UP = 11, /* the domain is being started */
 
 # ifdef VIR_ENUM_SENTINELS
     VIR_DOMAIN_PAUSED_LAST

src/conf/domain_conf.c

@@ -661,7 +661,8 @@ VIR_ENUM_IMPL(virDomainPausedReason, VIR_DOMAIN_PAUSED_LAST,
               "from snapshot",
               "shutdown",
               "snapshot",
-              "panicked")
+              "panicked",
+              "starting up")
 
 VIR_ENUM_IMPL(virDomainShutdownReason, VIR_DOMAIN_SHUTDOWN_LAST,
               "unknown",

src/qemu/qemu_process.c

@@ -3338,6 +3338,7 @@ qemuProcessUpdateState(virQEMUDriverPtr driver, virDomainObjPtr vm)
     virDomainState state;
     virDomainPausedReason reason;
     virDomainState newState = VIR_DOMAIN_NOSTATE;
+    int oldReason;
     int newReason;
     bool running;
     char *msg = NULL;
@@ -3351,9 +3352,16 @@ qemuProcessUpdateState(virQEMUDriverPtr driver, virDomainObjPtr vm)
     if (ret < 0)
         return -1;
 
-    state = virDomainObjGetState(vm, NULL);
+    state = virDomainObjGetState(vm, &oldReason);
 
-    if (state == VIR_DOMAIN_PAUSED && running) {
+    if (running &&
+        (state == VIR_DOMAIN_SHUTOFF ||
+         (state == VIR_DOMAIN_PAUSED &&
+          oldReason == VIR_DOMAIN_PAUSED_STARTING_UP))) {
+        newState = VIR_DOMAIN_RUNNING;
+        newReason = VIR_DOMAIN_RUNNING_BOOTED;
+        ignore_value(VIR_STRDUP_QUIET(msg, "finished booting"));
+    } else if (state == VIR_DOMAIN_PAUSED && running) {
         newState = VIR_DOMAIN_RUNNING;
         newReason = VIR_DOMAIN_RUNNING_UNPAUSED;
         ignore_value(VIR_STRDUP_QUIET(msg, "was unpaused"));
@@ -3372,10 +3380,6 @@ qemuProcessUpdateState(virQEMUDriverPtr driver, virDomainObjPtr vm)
             ignore_value(virAsprintf(&msg, "was paused (%s)",
                                  virDomainPausedReasonTypeToString(reason)));
         }
-    } else if (state == VIR_DOMAIN_SHUTOFF && running) {
-        newState = VIR_DOMAIN_RUNNING;
-        newReason = VIR_DOMAIN_RUNNING_BOOTED;
-        ignore_value(VIR_STRDUP_QUIET(msg, "finished booting"));
     }
 
     if (newState != VIR_DOMAIN_NOSTATE) {
@@ -3748,7 +3752,9 @@ qemuProcessReconnect(void *opaque)
         goto error;
 
     state = virDomainObjGetState(obj, &reason);
-    if (state == VIR_DOMAIN_SHUTOFF) {
+    if (state == VIR_DOMAIN_SHUTOFF ||
+        (state == VIR_DOMAIN_PAUSED &&
+         reason == VIR_DOMAIN_PAUSED_STARTING_UP)) {
         VIR_DEBUG("Domain '%s' wasn't fully started yet, killing it",
                   obj->def->name);
         goto error;
@@ -4379,7 +4385,7 @@ int qemuProcessStart(virConnectPtr conn,
 
     vm->def->id = qemuDriverAllocateID(driver);
     qemuDomainSetFakeReboot(driver, vm, false);
-    virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF, VIR_DOMAIN_SHUTOFF_UNKNOWN);
+    virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_STARTING_UP);
 
     if (virAtomicIntInc(&driver->nactive) == 1 && driver->inhibitCallback)
         driver->inhibitCallback(true, driver->inhibitOpaque);

tools/virsh-domain-monitor.c

@@ -199,7 +199,8 @@ VIR_ENUM_IMPL(vshDomainPausedReason,
               N_("from snapshot"),
               N_("shutting down"),
               N_("creating snapshot"),
-              N_("crashed"))
+              N_("crashed"),
+              N_("starting up"))
 
 VIR_ENUM_DECL(vshDomainShutdownReason)
 VIR_ENUM_IMPL(vshDomainShutdownReason,