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[Qemu-devel] [PULL 17/96] acpi, pc: Add hotunplug request cb for pc mach

From: Michael S. Tsirkin
Subject: [Qemu-devel] [PULL 17/96] acpi, pc: Add hotunplug request cb for pc machine.
Date: Wed, 18 Feb 2015 22:45:44 +0100

From: Tang Chen <address@hidden>

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.

Reviewed-by: Igor Mammedov <address@hidden>
Signed-off-by: Tang Chen <address@hidden>
Signed-off-by: Zhu Guihua <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
 hw/i386/pc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index c7af6aa..15ee10a 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1680,6 +1680,13 @@ static void pc_machine_device_plug_cb(HotplugHandler 
+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)
@@ -1809,6 +1816,7 @@ static void pc_machine_class_init(ObjectClass *oc, void 
     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 = {

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