[Qemu-devel] [PATCH Part2 09/13] acpi, piix4: Add memory hot unplug support for piix4.

[Tang Chen]

Call memory unplug cb in piix4_device_unplug_cb().

Signed-off-by: Tang Chen <address@hidden>
---
 hw/acpi/piix4.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 6c7dff9..440c9e8 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -376,8 +376,16 @@ 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)));
+    PIIX4PMState *s = PIIX4_PM(hotplug_dev);
+
+    if (s->acpi_memory_hotplug.is_enabled &&
+        object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
+        acpi_memory_unplug_cb(&s->ar, s->irq, &s->acpi_memory_hotplug,
+                              dev, errp);
+    } else {
+        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)
-- 
1.8.4.2