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-rw-r--r--hw/core/machine-qmp-cmds.c6
-rw-r--r--hw/core/machine.c8
-rw-r--r--hw/core/qdev.c16
-rw-r--r--hw/pci/pci.c2
-rw-r--r--hw/usb/core.c2
-rw-r--r--hw/virtio/virtio-iommu.c2
-rw-r--r--include/hw/qdev-core.h32
-rw-r--r--monitor/hmp.c2
-rw-r--r--softmmu/qdev-monitor.c24
-rw-r--r--softmmu/vl.c9
-rw-r--r--ui/console.c2
11 files changed, 73 insertions, 32 deletions
diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index cb9387c..87f1414 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -286,9 +286,9 @@ HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp)
void qmp_set_numa_node(NumaOptions *cmd, Error **errp)
{
- if (qdev_hotplug) {
- error_setg(errp, "The command is permitted only before the machine has been created");
- return;
+ if (phase_check(PHASE_MACHINE_INITIALIZED)) {
+ error_setg(errp, "The command is permitted only before the machine has been created");
+ return;
}
set_numa_options(MACHINE(qdev_get_machine()), cmd, errp);
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 07268af..607eb88 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -1174,17 +1174,16 @@ void machine_run_board_init(MachineState *machine)
}
machine_class->init(machine);
+ phase_advance(PHASE_MACHINE_INITIALIZED);
}
static NotifierList machine_init_done_notifiers =
NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
-static bool machine_init_done;
-
void qemu_add_machine_init_done_notifier(Notifier *notify)
{
notifier_list_add(&machine_init_done_notifiers, notify);
- if (machine_init_done) {
+ if (phase_check(PHASE_MACHINE_READY)) {
notify->notify(notify, NULL);
}
}
@@ -1207,7 +1206,7 @@ void qdev_machine_creation_done(void)
* ok, initial machine setup is done, starting from now we can
* only create hotpluggable devices
*/
- qdev_hotplug = true;
+ phase_advance(PHASE_MACHINE_READY);
qdev_assert_realized_properly();
/* TODO: once all bus devices are qdevified, this should be done
@@ -1222,7 +1221,6 @@ void qdev_machine_creation_done(void)
*/
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) {
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index dddb0b2..cefc5ea 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -41,7 +41,6 @@
#include "migration/vmstate.h"
#include "trace.h"
-bool qdev_hotplug = false;
static bool qdev_hot_added = false;
bool qdev_hot_removed = false;
@@ -905,7 +904,7 @@ static void device_initfn(Object *obj)
{
DeviceState *dev = DEVICE(obj);
- if (qdev_hotplug) {
+ if (phase_check(PHASE_MACHINE_READY)) {
dev->hotplugged = 1;
qdev_hot_added = true;
}
@@ -1138,6 +1137,19 @@ Object *qdev_get_machine(void)
return dev;
}
+static MachineInitPhase machine_phase;
+
+bool phase_check(MachineInitPhase phase)
+{
+ return machine_phase >= phase;
+}
+
+void phase_advance(MachineInitPhase phase)
+{
+ assert(machine_phase == phase - 1);
+ machine_phase = phase;
+}
+
static const TypeInfo device_type_info = {
.name = TYPE_DEVICE,
.parent = TYPE_OBJECT,
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 9424231..d4349ea 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -1062,7 +1062,7 @@ static PCIDevice *do_pci_register_device(PCIDevice *pci_dev,
address_space_init(&pci_dev->bus_master_as,
&pci_dev->bus_master_container_region, pci_dev->name);
- if (qdev_hotplug) {
+ if (phase_check(PHASE_MACHINE_READY)) {
pci_init_bus_master(pci_dev);
}
pci_dev->irq_state = 0;
diff --git a/hw/usb/core.c b/hw/usb/core.c
index 5234dcc..e960036 100644
--- a/hw/usb/core.c
+++ b/hw/usb/core.c
@@ -97,7 +97,7 @@ void usb_wakeup(USBEndpoint *ep, unsigned int stream)
USBDevice *dev = ep->dev;
USBBus *bus = usb_bus_from_device(dev);
- if (!qdev_hotplug) {
+ if (!phase_check(PHASE_MACHINE_READY)) {
/*
* This is machine init cold plug. No need to wakeup anyone,
* all devices will be reset anyway. And trying to wakeup can
diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c
index cea8811..6b9ef7f 100644
--- a/hw/virtio/virtio-iommu.c
+++ b/hw/virtio/virtio-iommu.c
@@ -930,7 +930,7 @@ static int virtio_iommu_set_page_size_mask(IOMMUMemoryRegion *mr,
* accept it. Having a different masks is possible but the guest will use
* sub-optimal block sizes, so warn about it.
*/
- if (qdev_hotplug) {
+ if (phase_check(PHASE_MACHINE_READY)) {
int new_granule = ctz64(new_mask);
int cur_granule = ctz64(cur_mask);
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 3dab50c..bafc311 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -786,7 +786,6 @@ Object *qdev_get_machine(void);
/* FIXME: make this a link<> */
bool qdev_set_parent_bus(DeviceState *dev, BusState *bus, Error **errp);
-extern bool qdev_hotplug;
extern bool qdev_hot_removed;
char *qdev_get_dev_path(DeviceState *dev);
@@ -812,4 +811,35 @@ void device_listener_unregister(DeviceListener *listener);
*/
bool qdev_should_hide_device(QemuOpts *opts);
+typedef enum MachineInitPhase {
+ /* current_machine is NULL. */
+ PHASE_NO_MACHINE,
+
+ /* current_machine is not NULL, but current_machine->accel is NULL. */
+ PHASE_MACHINE_CREATED,
+
+ /*
+ * current_machine->accel is not NULL, but the machine properties have
+ * not been validated and machine_class->init has not yet been called.
+ */
+ PHASE_ACCEL_CREATED,
+
+ /*
+ * machine_class->init has been called, thus creating any embedded
+ * devices and validating machine properties. Devices created at
+ * this time are considered to be cold-plugged.
+ */
+ PHASE_MACHINE_INITIALIZED,
+
+ /*
+ * QEMU is ready to start CPUs and devices created at this time
+ * are considered to be hot-plugged. The monitor is not restricted
+ * to "preconfig" commands.
+ */
+ PHASE_MACHINE_READY,
+} MachineInitPhase;
+
+extern bool phase_check(MachineInitPhase phase);
+extern void phase_advance(MachineInitPhase phase);
+
#endif
diff --git a/monitor/hmp.c b/monitor/hmp.c
index f2fe192..6c0b33a 100644
--- a/monitor/hmp.c
+++ b/monitor/hmp.c
@@ -216,7 +216,7 @@ static bool cmd_can_preconfig(const HMPCommand *cmd)
static bool cmd_available(const HMPCommand *cmd)
{
- return qdev_hotplug || cmd_can_preconfig(cmd);
+ return phase_check(PHASE_MACHINE_READY) || cmd_can_preconfig(cmd);
}
static void help_cmd_dump_one(Monitor *mon,
diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
index 3f1e672..2c57e36 100644
--- a/softmmu/qdev-monitor.c
+++ b/softmmu/qdev-monitor.c
@@ -245,7 +245,7 @@ static DeviceClass *qdev_get_device_class(const char **driver, Error **errp)
dc = DEVICE_CLASS(oc);
if (!dc->user_creatable ||
- (qdev_hotplug && !dc->hotpluggable)) {
+ (phase_check(PHASE_MACHINE_READY) && !dc->hotpluggable)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver",
"a pluggable device type");
return NULL;
@@ -627,7 +627,7 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
}
}
- if (qdev_hotplug && bus && !qbus_is_hotpluggable(bus)) {
+ if (phase_check(PHASE_MACHINE_READY) && bus && !qbus_is_hotpluggable(bus)) {
error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name);
return NULL;
}
@@ -641,15 +641,17 @@ DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
dev = qdev_new(driver);
/* Check whether the hotplug is allowed by the machine */
- if (qdev_hotplug && !qdev_hotplug_allowed(dev, errp)) {
- goto err_del_dev;
- }
+ if (phase_check(PHASE_MACHINE_READY)) {
+ if (!qdev_hotplug_allowed(dev, errp)) {
+ goto err_del_dev;
+ }
- if (!bus && qdev_hotplug && !qdev_get_machine_hotplug_handler(dev)) {
- /* No bus, no machine hotplug handler --> device is not hotpluggable */
- error_setg(errp, "Device '%s' can not be hotplugged on this machine",
- driver);
- goto err_del_dev;
+ if (!bus && !qdev_get_machine_hotplug_handler(dev)) {
+ /* No bus, no machine hotplug handler --> device is not hotpluggable */
+ error_setg(errp, "Device '%s' can not be hotplugged on this machine",
+ driver);
+ goto err_del_dev;
+ }
}
qdev_set_id(dev, qemu_opts_id(opts));
@@ -987,7 +989,7 @@ int qemu_global_option(const char *str)
bool qmp_command_available(const QmpCommand *cmd, Error **errp)
{
- if (!qdev_hotplug &&
+ if (!phase_check(PHASE_MACHINE_READY) &&
!(cmd->options & QCO_ALLOW_PRECONFIG)) {
error_setg(errp, "The command '%s' is permitted only after machine initialization has completed",
cmd->name);
diff --git a/softmmu/vl.c b/softmmu/vl.c
index 8e18c52..4fece1b 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -2406,10 +2406,6 @@ static void qemu_init_displays(void)
}
}
-/*
- * Called after leaving preconfig state. From here on runstate is
- * RUN_STATE_PRELAUNCH or RUN_STATE_INMIGRATE.
- */
static void qemu_init_board(void)
{
MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
@@ -2424,6 +2420,7 @@ static void qemu_init_board(void)
exit(1);
}
+ /* From here on we enter MACHINE_PHASE_INITIALIZED. */
machine_run_board_init(current_machine);
/*
@@ -2490,7 +2487,7 @@ static void qemu_machine_creation_done(void)
void qmp_x_exit_preconfig(Error **errp)
{
- if (qdev_hotplug) {
+ if (phase_check(PHASE_MACHINE_INITIALIZED)) {
error_setg(errp, "The command is permitted only before machine initialization");
return;
}
@@ -3469,12 +3466,14 @@ void qemu_init(int argc, char **argv, char **envp)
qemu_create_early_backends();
qemu_apply_machine_options();
+ phase_advance(PHASE_MACHINE_CREATED);
/*
* Note: uses machine properties such as kernel-irqchip, must run
* after machine_set_property().
*/
configure_accelerators(argv[0]);
+ phase_advance(PHASE_ACCEL_CREATED);
/*
* Beware, QOM objects created before this point miss global and
diff --git a/ui/console.c b/ui/console.c
index 30e70be..4db5b04 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -1345,7 +1345,7 @@ static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
if (QTAILQ_EMPTY(&consoles)) {
s->index = 0;
QTAILQ_INSERT_TAIL(&consoles, s, next);
- } else if (console_type != GRAPHIC_CONSOLE || qdev_hotplug) {
+ } else if (console_type != GRAPHIC_CONSOLE || phase_check(PHASE_MACHINE_READY)) {
QemuConsole *last = QTAILQ_LAST(&consoles);
s->index = last->index + 1;
QTAILQ_INSERT_TAIL(&consoles, s, next);
generated by cgit v1.1 at 2024-12-25 19:06:50 +0000