diff mbox

[v2,5/5] acpi, piix4: Add unplug cb for piix4.

Message ID b7cc2b25dac86d1729607a86fcb62be70cfffe08.1422429010.git.zhugh.fnst@cn.fujitsu.com
State New
Headers show

Commit Message

Zhu Guihua Jan. 28, 2015, 7:45 a.m. UTC 
From: Tang Chen <tangchen@cn.fujitsu.com>

Memory and CPU hot unplug are both asynchronous procedures.
When the unplug operation happens, unplug request cb is called first.
And when guest OS finished handling unplug, unplug cb will be called
to do the real removal of device.

This patch adds hotunplug cb to piix4, which memory and CPU
hot unplug will use it.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
---
 hw/acpi/piix4.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox

Patch

diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 184e7e4..14d40a0 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -370,6 +370,13 @@  static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev,
     }
 }
 
+static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
+                                   DeviceState *dev, Error **errp)
+{
+    error_setg(errp, "acpi: device unplug for not supported device"
+               " type: %s", object_get_typename(OBJECT(dev)));
+}
+
 static void piix4_update_bus_hotplug(PCIBus *pci_bus, void *opaque)
 {
     PIIX4PMState *s = opaque;
@@ -610,6 +617,7 @@  static void piix4_pm_class_init(ObjectClass *klass, void *data)
     dc->hotpluggable = false;
     hc->plug = piix4_device_plug_cb;
     hc->unplug_request = piix4_device_unplug_request_cb;
+    hc->unplug = piix4_device_unplug_cb;
     adevc->ospm_status = piix4_ospm_status;
 }