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[v3,4/8] qdev: Add memory hot unplug support for bus-less devices.

Message ID 1408361068-22955-5-git-send-email-tangchen@cn.fujitsu.com
State New
Headers show

Commit Message

Tang Chen Aug. 18, 2014, 11:24 a.m. UTC 
From: Hu Tao <hutao@cn.fujitsu.com>

Implement bus-less device hot-remove in qdev_unplug(). It will call PCMachine
callback introduced in previous patch.

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
---
 hw/core/qdev.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index da1ba48..e365a74 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -228,6 +228,14 @@  void qdev_unplug(DeviceState *dev, Error **errp)
 
     if (dev->parent_bus && dev->parent_bus->hotplug_handler) {
         hotplug_handler_unplug(dev->parent_bus->hotplug_handler, dev, errp);
+    } else if (*errp == NULL) {
+        HotplugHandler *hotplug_ctrl;
+        MachineState *machine = MACHINE(qdev_get_machine());
+        MachineClass *mc = MACHINE_GET_CLASS(machine);
+
+        hotplug_ctrl = mc->get_hotplug_handler(machine, dev);
+        if (hotplug_ctrl)
+            hotplug_handler_unplug(hotplug_ctrl, dev, errp);
     } else {
         assert(dc->unplug != NULL);
         if (dc->unplug(dev) < 0) { /* legacy handler */