acpi, mem-hotplug: add unplug cb for memory device
This patch adds unplug cb for memory device. It resets memory status
"is_enabled" in acpi_memory_unplug_cb(), removes the corresponding
memory region, unregisters vmstate, and unparents the object.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
index 42fe668..07e281f 100644
--- a/hw/acpi/memory_hotplug.c
+++ b/hw/acpi/memory_hotplug.c
@@ -237,6 +237,20 @@
acpi_update_sci(ar, irq);
}
+void acpi_memory_unplug_cb(MemHotplugState *mem_st,
+ DeviceState *dev, Error **errp)
+{
+ MemStatus *mdev;
+
+ mdev = acpi_memory_slot_status(mem_st, dev, errp);
+ if (!mdev) {
+ return;
+ }
+
+ mdev->is_enabled = false;
+ mdev->dimm = NULL;
+}
+
static const VMStateDescription vmstate_memhp_sts = {
.name = "memory hotplug device state",
.version_id = 1,
