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qdev: HotplugHandler: Rename unplug callback to unplug_request

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'HotplugHandler.unplug' callback is currently used as async
call to issue unplug request for device that implements it.
Renaming 'unplug' callback to 'unplug_request' should help to
avoid confusion about what callback does and would allow to
introduce 'unplug' callback that would perform actual device
removal when guest is ready for it.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Igor Mammedov 2014-09-26 09:28:19 +00:00 committed by Andreas Färber
parent ce9835e00d
commit 14d5a28fb6
11 changed files with 32 additions and 29 deletions
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6
hw/acpi/piix4.c
View file

@ -354,8 +354,8 @@ static void piix4_device_plug_cb(HotplugHandler *hotplug_dev,
}
}
static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
PIIX4PMState *s = PIIX4_PM(hotplug_dev);
@ -615,7 +615,7 @@ static void piix4_pm_class_init(ObjectClass *klass, void *data)
dc->cannot_instantiate_with_device_add_yet = true;
dc->hotpluggable = false;
hc->plug = piix4_device_plug_cb;
hc->unplug = piix4_device_unplug_cb;
hc->unplug_request = piix4_device_unplug_request_cb;
adevc->ospm_status = piix4_ospm_status;
}

10
hw/core/hotplug.c
View file

@ -23,14 +23,14 @@ void hotplug_handler_plug(HotplugHandler *plug_handler,
}
}
void hotplug_handler_unplug(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp)
void hotplug_handler_unplug_request(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp)
{
HotplugHandlerClass *hdc = HOTPLUG_HANDLER_GET_CLASS(plug_handler);
if (hdc->unplug) {
hdc->unplug(plug_handler, plugged_dev, errp);
if (hdc->unplug_request) {
hdc->unplug_request(plug_handler, plugged_dev, errp);
}
}

3
hw/core/qdev.c
View file

@ -227,7 +227,8 @@ void qdev_unplug(DeviceState *dev, Error **errp)
qdev_hot_removed = true;
if (dev->parent_bus && dev->parent_bus->hotplug_handler) {
hotplug_handler_unplug(dev->parent_bus->hotplug_handler, dev, errp);
hotplug_handler_unplug_request(dev->parent_bus->hotplug_handler,
dev, errp);
} else {
assert(dc->unplug != NULL);
if (dc->unplug(dev) < 0) { /* legacy handler */

6
hw/isa/lpc_ich9.c
View file

@ -607,8 +607,8 @@ static void ich9_device_plug_cb(HotplugHandler *hotplug_dev,
ich9_pm_device_plug_cb(&lpc->pm, dev, errp);
}
static void ich9_device_unplug_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
static void ich9_device_unplug_request_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
error_setg(errp, "acpi: device unplug request for not supported device"
" type: %s", object_get_typename(OBJECT(dev)));
@ -676,7 +676,7 @@ static void ich9_lpc_class_init(ObjectClass *klass, void *data)
*/
dc->cannot_instantiate_with_device_add_yet = true;
hc->plug = ich9_device_plug_cb;
hc->unplug = ich9_device_unplug_cb;
hc->unplug_request = ich9_device_unplug_request_cb;
adevc->ospm_status = ich9_pm_ospm_status;
}

2
hw/pci-bridge/pci_bridge_dev.c
View file

@ -150,7 +150,7 @@ static void pci_bridge_dev_class_init(ObjectClass *klass, void *data)
dc->vmsd = &pci_bridge_dev_vmstate;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
hc->plug = shpc_device_hotplug_cb;
hc->unplug = shpc_device_hot_unplug_cb;
hc->unplug_request = shpc_device_hot_unplug_request_cb;
}
static const TypeInfo pci_bridge_dev_info = {

4
hw/pci/pcie.c
View file

@ -262,8 +262,8 @@ void pcie_cap_slot_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
PCI_EXP_HP_EV_PDC | PCI_EXP_HP_EV_ABP);
}
void pcie_cap_slot_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp)
void pcie_cap_slot_hot_unplug_request_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
uint8_t *exp_cap;

2
hw/pci/pcie_port.c
View file

@ -154,7 +154,7 @@ static void pcie_slot_class_init(ObjectClass *oc, void *data)
dc->props = pcie_slot_props;
hc->plug = pcie_cap_slot_hotplug_cb;
hc->unplug = pcie_cap_slot_hot_unplug_cb;
hc->unplug_request = pcie_cap_slot_hot_unplug_request_cb;
}
static const TypeInfo pcie_slot_type_info = {

4
hw/pci/shpc.c
View file

@ -549,8 +549,8 @@ void shpc_device_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
shpc_interrupt_update(pci_hotplug_dev);
}
void shpc_device_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp)
void shpc_device_hot_unplug_request_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
Error *local_err = NULL;
PCIDevice *pci_hotplug_dev = PCI_DEVICE(hotplug_dev);

16
include/hw/hotplug.h
View file

@ -47,7 +47,9 @@ typedef void (*hotplug_fn)(HotplugHandler *plug_handler,
*
* @parent: Opaque parent interface.
* @plug: plug callback.
* @unplug: unplug callback.
* @unplug_request: unplug request callback.
* Used as a means to initiate device unplug for devices that
* require asynchronous unplug handling.
*/
typedef struct HotplugHandlerClass {
/* <private> */
@ -55,7 +57,7 @@ typedef struct HotplugHandlerClass {
/* <public> */
hotplug_fn plug;
hotplug_fn unplug;
hotplug_fn unplug_request;
} HotplugHandlerClass;
/**
@ -68,11 +70,11 @@ void hotplug_handler_plug(HotplugHandler *plug_handler,
Error **errp);
/**
* hotplug_handler_unplug:
* hotplug_handler_unplug_request:
*
* Call #HotplugHandlerClass.unplug callback of @plug_handler.
* Calls #HotplugHandlerClass.unplug_request callback of @plug_handler.
*/
void hotplug_handler_unplug(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp);
void hotplug_handler_unplug_request(HotplugHandler *plug_handler,
DeviceState *plugged_dev,
Error **errp);
#endif

4
include/hw/pci/pcie.h
View file

@ -128,6 +128,6 @@ extern const VMStateDescription vmstate_pcie_device;
void pcie_cap_slot_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp);
void pcie_cap_slot_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp);
void pcie_cap_slot_hot_unplug_request_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp);
#endif /* QEMU_PCIE_H */

4
include/hw/pci/shpc.h
View file

@ -46,8 +46,8 @@ void shpc_cap_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int len);
void shpc_device_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp);
void shpc_device_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
Error **errp);
void shpc_device_hot_unplug_request_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp);
extern VMStateInfo shpc_vmstate_info;
#define SHPC_VMSTATE(_field, _type) \