diff options
Diffstat (limited to 'hw/core/qdev-hotplug.c')
| -rw-r--r-- | hw/core/qdev-hotplug.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/hw/core/qdev-hotplug.c b/hw/core/qdev-hotplug.c index d495d0e..ff176dc 100644 --- a/hw/core/qdev-hotplug.c +++ b/hw/core/qdev-hotplug.c @@ -12,6 +12,7 @@ #include "qemu/osdep.h" #include "hw/qdev-core.h" #include "hw/boards.h" +#include "qapi/error.h" HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev) { @@ -30,12 +31,48 @@ HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev) return NULL; } -bool qdev_hotplug_allowed(DeviceState *dev, Error **errp) +static bool qdev_hotplug_unplug_allowed_common(DeviceState *dev, BusState *bus, + Error **errp) +{ + DeviceClass *dc = DEVICE_GET_CLASS(dev); + + if (!dc->hotpluggable) { + error_setg(errp, "Device '%s' does not support hotplugging", + object_get_typename(OBJECT(dev))); + return false; + } + + if (bus) { + if (!qbus_is_hotpluggable(bus)) { + error_setg(errp, "Bus '%s' does not support hotplugging", + bus->name); + return false; + } + } else { + if (!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", + object_get_typename(OBJECT(dev))); + return false; + } + } + + return true; +} + +bool qdev_hotplug_allowed(DeviceState *dev, BusState *bus, Error **errp) { MachineState *machine; MachineClass *mc; Object *m_obj = qdev_get_machine(); + if (!qdev_hotplug_unplug_allowed_common(dev, bus, errp)) { + return false; + } + if (object_dynamic_cast(m_obj, TYPE_MACHINE)) { machine = MACHINE(m_obj); mc = MACHINE_GET_CLASS(machine); @@ -47,6 +84,12 @@ bool qdev_hotplug_allowed(DeviceState *dev, Error **errp) return true; } +bool qdev_hotunplug_allowed(DeviceState *dev, Error **errp) +{ + return !qdev_unplug_blocked(dev, errp) && + qdev_hotplug_unplug_allowed_common(dev, dev->parent_bus, errp); +} + HotplugHandler *qdev_get_bus_hotplug_handler(DeviceState *dev) { if (dev->parent_bus) { |