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vl: move all generic initialization out of vl.c

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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>
This commit is contained in:
Paolo Bonzini 2020-11-13 02:43:56 -05:00
parent c5e3c9182d
commit f66dc8737c
4 changed files with 51 additions and 46 deletions
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47
hw/core/machine.c
View File

@ -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 = {

12
hw/core/qdev.c
View File

@ -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)

1
include/hw/qdev-core.h
View File

@ -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<> */

37
softmmu/vl.c
View File

@ -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));
}
qdev_machine_creation_done();
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");
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)