[Qemu-devel] [PATCH RESEND v1 Part2 08/13] acpi, mem-hotplug: Add unplug cb for memory device.

[Tang Chen]

Reset all memory status, and unparent the memory device.
---
 hw/acpi/memory_hotplug.c         | 16 ++++++++++++++++
 include/hw/acpi/memory_hotplug.h |  2 ++
 2 files changed, 18 insertions(+)

diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
index 3d8e398..2b0c8ca 100644
--- a/hw/acpi/memory_hotplug.c
+++ b/hw/acpi/memory_hotplug.c
@@ -227,6 +227,22 @@ void acpi_memory_unplug_request_cb(ACPIREGS *ar, qemu_irq 
irq,
     acpi_memory_hotplug_sci(ar, irq);
 }
 
+void acpi_memory_unplug_cb(ACPIREGS *ar, qemu_irq irq,
+                           MemHotplugState *mem_st,
+                           DeviceState *dev, Error **errp)
+{
+    MemStatus *mdev;
+
+    mdev = acpi_memory_get_slot_status_descriptor(mem_st, dev, errp);
+    if (!mdev)
+        return;
+
+    mdev->is_removing = false;
+    mdev->is_enabled = false;
+    object_unparent(OBJECT(mdev->dimm));
+    mdev->dimm = NULL;
+}
+
 static const VMStateDescription vmstate_memhp_sts = {
     .name = "memory hotplug device state",
     .version_id = 1,
diff --git a/include/hw/acpi/memory_hotplug.h b/include/hw/acpi/memory_hotplug.h
index c437a85..6b8d9f7 100644
--- a/include/hw/acpi/memory_hotplug.h
+++ b/include/hw/acpi/memory_hotplug.h
@@ -32,6 +32,8 @@ void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq, 
MemHotplugState *mem_st,
 void acpi_memory_unplug_request_cb(ACPIREGS *ar, qemu_irq irq,
                                    MemHotplugState *mem_st,
                                    DeviceState *dev, Error **errp);
+void acpi_memory_unplug_cb(ACPIREGS *ar, qemu_irq irq, MemHotplugState *mem_st,
+                           DeviceState *dev, Error **errp);
 
 extern const VMStateDescription vmstate_memory_hotplug;
 #define VMSTATE_MEMORY_HOTPLUG(memhp, state) \
-- 
1.8.4.2