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machine: add device_type_is_dynamic_sysbus function

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Right now the allowance check for adding a sysbus device using
-device cli option (or device_add qmp command) is done well after
the device has been created. It is done during the machine init done
notifier: machine_init_notify() in hw/core/machine.c

This new function will allow us to do the check at the right time and
issue an error if it fails.

Also make device_is_dynamic_sysbus() use the new function.

Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20211029142258.484907-2-damien.hedde@greensocs.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
This commit is contained in:
Damien Hedde
2021-10-29 16:22:56 +02:00
committed by Philippe Mathieu-Daudé
parent 9e8e393bb7
commit b5fdf4102f
2 changed files with 25 additions and 3 deletions
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13
hw/core/machine.c
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@ -548,18 +548,25 @@ void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type)
bool device_is_dynamic_sysbus(MachineClass *mc, DeviceState *dev)
{
bool allowed = false;
strList *wl;
Object *obj = OBJECT(dev);
if (!object_dynamic_cast(obj, TYPE_SYS_BUS_DEVICE)) {
return false;
}
return device_type_is_dynamic_sysbus(mc, object_get_typename(obj));
}
bool device_type_is_dynamic_sysbus(MachineClass *mc, const char *type)
{
bool allowed = false;
strList *wl;
ObjectClass *klass = object_class_by_name(type);
for (wl = mc->allowed_dynamic_sysbus_devices;
!allowed && wl;
wl = wl->next) {
allowed |= !!object_dynamic_cast(obj, wl->value);
allowed |= !!object_class_dynamic_cast(klass, wl->value);
}
return allowed;