vl: move all generic initialization out of vl.c

qdev_machine_creation_done is only setting a flag now.  Extend it to
move more code out of vl.c.  Leave only consistency checks and gdbserver
processing in qemu_machine_creation_done.

gdbserver_start can be moved after qdev_machine_creation_done because
it only does listen on the socket and creates some internal data
structures; it does not send any data (e.g. guest state) over the socket.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/core/machine.c

@@ -16,16 +16,21 @@
 #include "sysemu/replay.h"
 #include "qemu/units.h"
 #include "hw/boards.h"
+#include "hw/loader.h"
 #include "qapi/error.h"
 #include "qapi/qapi-visit-common.h"
 #include "qapi/visitor.h"
 #include "hw/sysbus.h"
+#include "sysemu/cpus.h"
 #include "sysemu/sysemu.h"
+#include "sysemu/reset.h"
+#include "sysemu/runstate.h"
 #include "sysemu/numa.h"
 #include "qemu/error-report.h"
 #include "sysemu/qtest.h"
 #include "hw/pci/pci.h"
 #include "hw/mem/nvdimm.h"
+#include "migration/global_state.h"
 #include "migration/vmstate.h"
 
 GlobalProperty hw_compat_5_2[] = {};
@@ -1189,10 +1194,50 @@ void qemu_remove_machine_init_done_notifier(Notifier *notify)
     notifier_remove(notify);
 }
 
-void qemu_run_machine_init_done_notifiers(void)
+void qdev_machine_creation_done(void)
 {
+    cpu_synchronize_all_post_init();
+
+    if (current_machine->boot_once) {
+        qemu_boot_set(current_machine->boot_once, &error_fatal);
+        qemu_register_reset(restore_boot_order, g_strdup(current_machine->boot_order));
+    }
+
+    /*
+     * ok, initial machine setup is done, starting from now we can
+     * only create hotpluggable devices
+     */
+    qdev_hotplug = true;
+    qdev_assert_realized_properly();
+
+    /* TODO: once all bus devices are qdevified, this should be done
+     * when bus is created by qdev.c */
+    /*
+     * TODO: If we had a main 'reset container' that the whole system
+     * lived in, we could reset that using the multi-phase reset
+     * APIs. For the moment, we just reset the sysbus, which will cause
+     * all devices hanging off it (and all their child buses, recursively)
+     * to be reset. Note that this will *not* reset any Device objects
+     * which are not attached to some part of the qbus tree!
+     */
+    qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
+
     machine_init_done = true;
     notifier_list_notify(&machine_init_done_notifiers, NULL);
+
+    if (rom_check_and_register_reset() != 0) {
+        error_report("rom check and register reset failed");
+        exit(1);
+    }
+
+    replay_start();
+
+    /* This checkpoint is required by replay to separate prior clock
+       reading from the other reads, because timer polling functions query
+       clock values from the log. */
+    replay_checkpoint(CHECKPOINT_RESET);
+    qemu_system_reset(SHUTDOWN_CAUSE_NONE);
+    register_global_state();
 }
 
 static const TypeInfo machine_info = {

hw/core/qdev.c

@@ -404,7 +404,7 @@ void qdev_unrealize(DeviceState *dev)
     object_property_set_bool(OBJECT(dev), "realized", false, &error_abort);
 }
 
-static int qdev_assert_realized_properly(Object *obj, void *opaque)
+static int qdev_assert_realized_properly_cb(Object *obj, void *opaque)
 {
     DeviceState *dev = DEVICE(object_dynamic_cast(obj, TYPE_DEVICE));
     DeviceClass *dc;
@@ -417,16 +417,10 @@ static int qdev_assert_realized_properly(Object *obj, void *opaque)
     return 0;
 }
 
-void qdev_machine_creation_done(void)
+void qdev_assert_realized_properly(void)
 {
-    /*
-     * ok, initial machine setup is done, starting from now we can
-     * only create hotpluggable devices
-     */
-    qdev_hotplug = true;
-
     object_child_foreach_recursive(object_get_root(),
-                                   qdev_assert_realized_properly, NULL);
+                                   qdev_assert_realized_properly_cb, NULL);
 }
 
 bool qdev_machine_modified(void)

include/hw/qdev-core.h

@@ -780,6 +780,7 @@ const VMStateDescription *qdev_get_vmsd(DeviceState *dev);
 
 const char *qdev_fw_name(DeviceState *dev);
 
+void qdev_assert_realized_properly(void);
 Object *qdev_get_machine(void);
 
 /* FIXME: make this a link<> */

softmmu/vl.c

@@ -72,7 +72,6 @@
 #include "hw/i386/pc.h"
 #include "migration/misc.h"
 #include "migration/snapshot.h"
-#include "migration/global_state.h"
 #include "sysemu/tpm.h"
 #include "sysemu/dma.h"
 #include "hw/audio/soundhw.h"
@@ -2465,8 +2464,6 @@ static void qemu_create_cli_devices(void)
 
 static void qemu_machine_creation_done(void)
 {
-    cpu_synchronize_all_post_init();
-
     /* Did we create any drives that we failed to create a device for? */
     drive_check_orphaned();
 
@@ -2484,43 +2481,11 @@ static void qemu_machine_creation_done(void)
 
     qdev_prop_check_globals();
 
-    if (current_machine->boot_once) {
-        qemu_boot_set(current_machine->boot_once, &error_fatal);
-        qemu_register_reset(restore_boot_order, g_strdup(current_machine->boot_order));
-    }
-
-    if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
-        exit(1);
-    }
-
     qdev_machine_creation_done();
 
-    /* TODO: once all bus devices are qdevified, this should be done
-     * when bus is created by qdev.c */
-    /*
-     * TODO: If we had a main 'reset container' that the whole system
-     * lived in, we could reset that using the multi-phase reset
-     * APIs. For the moment, we just reset the sysbus, which will cause
-     * all devices hanging off it (and all their child buses, recursively)
-     * to be reset. Note that this will *not* reset any Device objects
-     * which are not attached to some part of the qbus tree!
-     */
-    qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
-    qemu_run_machine_init_done_notifiers();
-
-    if (rom_check_and_register_reset() != 0) {
-        error_report("rom check and register reset failed");
+    if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
         exit(1);
     }
-
-    replay_start();
-
-    /* This checkpoint is required by replay to separate prior clock
-       reading from the other reads, because timer polling functions query
-       clock values from the log. */
-    replay_checkpoint(CHECKPOINT_RESET);
-    qemu_system_reset(SHUTDOWN_CAUSE_NONE);
-    register_global_state();
 }
 
 void qmp_x_exit_preconfig(Error **errp)