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[RESEND,v1,Part1,1/5] acpi, pc: Add hotunplug request cb for pc machine.

Message ID 1418278766-24075-2-git-send-email-tangchen@cn.fujitsu.com
State New
Headers show

Commit Message

Tang Chen Dec. 11, 2014, 6:19 a.m. UTC 
Memory and CPU hot unplug are both asynchronous procedures.
They both need unplug request callback to initiate unplug operation.

Add unplug handler to pc machine that will be used by following
CPU and memory unplug patches.
---
 hw/i386/pc.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index f31d55e..765ad3c 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1709,6 +1709,13 @@  static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev,
     }
 }
 
+static void pc_machine_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)));
+}
+
 static HotplugHandler *pc_get_hotpug_handler(MachineState *machine,
                                              DeviceState *dev)
 {
@@ -1831,6 +1838,7 @@  static void pc_machine_class_init(ObjectClass *oc, void *data)
     pcmc->get_hotplug_handler = mc->get_hotplug_handler;
     mc->get_hotplug_handler = pc_get_hotpug_handler;
     hc->plug = pc_machine_device_plug_cb;
+    hc->unplug_request = pc_machine_device_unplug_request_cb;
 }
 
 static const TypeInfo pc_machine_info = {