Merge branch 'queue/qmp' of git://repo.or.cz/qemu/qmp-unstable

* 'queue/qmp' of git://repo.or.cz/qemu/qmp-unstable:
  migration: go to paused state after finishing incoming migration with -S
  qmp: handle stop/cont in INMIGRATE state
  hmp: fix info cpus for sparc targets

hmp.c

@@ -245,20 +245,19 @@ void hmp_info_cpus(Monitor *mon)
             active = '*';
         }
 
-        monitor_printf(mon, "%c CPU #%" PRId64 ": ", active, cpu->value->CPU);
+        monitor_printf(mon, "%c CPU #%" PRId64 ":", active, cpu->value->CPU);
 
         if (cpu->value->has_pc) {
-            monitor_printf(mon, "pc=0x%016" PRIx64, cpu->value->pc);
+            monitor_printf(mon, " pc=0x%016" PRIx64, cpu->value->pc);
         }
         if (cpu->value->has_nip) {
-            monitor_printf(mon, "nip=0x%016" PRIx64, cpu->value->nip);
+            monitor_printf(mon, " nip=0x%016" PRIx64, cpu->value->nip);
         }
         if (cpu->value->has_npc) {
-            monitor_printf(mon, "pc=0x%016" PRIx64, cpu->value->pc);
-            monitor_printf(mon, "npc=0x%016" PRIx64, cpu->value->npc);
+            monitor_printf(mon, " npc=0x%016" PRIx64, cpu->value->npc);
         }
         if (cpu->value->has_PC) {
-            monitor_printf(mon, "PC=0x%016" PRIx64, cpu->value->PC);
+            monitor_printf(mon, " PC=0x%016" PRIx64, cpu->value->PC);
         }
 
         if (cpu->value->halted) {

migration.c

@@ -99,7 +99,7 @@ void process_incoming_migration(QEMUFile *f)
     if (autostart) {
         vm_start();
     } else {
-        runstate_set(RUN_STATE_PRELAUNCH);
+        runstate_set(RUN_STATE_PAUSED);
     }
 }
 

qapi-schema.json

@@ -22,15 +22,11 @@
 # @KVMMissingCap: the requested operation can't be fulfilled because a
 #                 required KVM capability is missing
 #
-# @MigrationExpected: the requested operation can't be fulfilled because a
-#                     migration process is expected
-#
 # Since: 1.2
 ##
 { 'enum': 'ErrorClass',
   'data': [ 'GenericError', 'CommandNotFound', 'DeviceEncrypted',
-            'DeviceNotActive', 'DeviceNotFound', 'KVMMissingCap',
-            'MigrationExpected' ] }
+            'DeviceNotActive', 'DeviceNotFound', 'KVMMissingCap' ] }
 
 ##
 # @add_client
@@ -149,7 +145,11 @@
 #
 # @finish-migrate: guest is paused to finish the migration process
 #
-# @inmigrate: guest is paused waiting for an incoming migration
+# @inmigrate: guest is paused waiting for an incoming migration.  Note
+# that this state does not tell whether the machine will start at the
+# end of the migration.  This depends on the command-line -S option and
+# any invocation of 'stop' or 'cont' that has happened since QEMU was
+# started.
 #
 # @internal-error: An internal error that prevents further guest execution
 # has occurred
@@ -1210,7 +1210,9 @@
 # Since:  0.14.0
 #
 # Notes:  This function will succeed even if the guest is already in the stopped
-#         state
+#         state.  In "inmigrate" state, it will ensure that the guest
+#         remains paused once migration finishes, as if the -S option was
+#         passed on the command line.
 ##
 { 'command': 'stop' }
 
@@ -1299,11 +1301,14 @@
 # Since:  0.14.0
 #
 # Returns:  If successful, nothing
-#           If the QEMU is waiting for an incoming migration, MigrationExpected
 #           If QEMU was started with an encrypted block device and a key has
 #              not yet been set, DeviceEncrypted.
 #
-# Notes:  This command will succeed if the guest is currently running.
+# Notes:  This command will succeed if the guest is currently running.  It
+#         will also succeed if the guest is in the "inmigrate" state; in
+#         this case, the effect of the command is to make sure the guest
+#         starts once migration finishes, removing the effect of the -S
+#         command line option if it was passed.
 ##
 { 'command': 'cont' }
 

qerror.h

@@ -165,9 +165,6 @@ void assert_no_error(Error *err);
 #define QERR_MIGRATION_NOT_SUPPORTED \
     ERROR_CLASS_GENERIC_ERROR, "State blocked by non-migratable device '%s'"
 
-#define QERR_MIGRATION_EXPECTED \
-    ERROR_CLASS_MIGRATION_EXPECTED, "An incoming migration is expected before this command can be executed"
-
 #define QERR_MISSING_PARAMETER \
     ERROR_CLASS_GENERIC_ERROR, "Parameter '%s' is missing"
 

qmp.c

@@ -85,7 +85,11 @@ void qmp_quit(Error **err)
 
 void qmp_stop(Error **errp)
 {
-    vm_stop(RUN_STATE_PAUSED);
+    if (runstate_check(RUN_STATE_INMIGRATE)) {
+        autostart = 0;
+    } else {
+        vm_stop(RUN_STATE_PAUSED);
+    }
 }
 
 void qmp_system_reset(Error **errp)
@@ -144,10 +148,7 @@ void qmp_cont(Error **errp)
 {
     Error *local_err = NULL;
 
-    if (runstate_check(RUN_STATE_INMIGRATE)) {
-        error_set(errp, QERR_MIGRATION_EXPECTED);
-        return;
-    } else if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
+    if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
                runstate_check(RUN_STATE_SHUTDOWN)) {
         error_set(errp, QERR_RESET_REQUIRED);
         return;
@@ -162,7 +163,11 @@ void qmp_cont(Error **errp)
         return;
     }
 
-    vm_start();
+    if (runstate_check(RUN_STATE_INMIGRATE)) {
+        autostart = 1;
+    } else {
+        vm_start();
+    }
 }
 
 void qmp_system_wakeup(Error **errp)

vl.c

@@ -341,7 +341,7 @@ static const RunStateTransition runstate_transitions_def[] = {
     { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
 
     { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
-    { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
+    { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
 
     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },