#include <linux/mm_types.h>
#include <linux/init.h>
#include <linux/capability.h>
+#include <linux/memory_hotplug.h>
#include <xen/xen.h>
#include <xen/interface/xen.h>
#define BALLOON_CLASS_NAME "xen_memory"
+#ifdef CONFIG_MEMORY_HOTPLUG
+u64 xen_saved_max_mem_size = 0;
+#endif
+
static struct device balloon_dev;
static int register_balloon(struct device *dev);
static bool watch_fired;
static long target_diff;
+#ifdef CONFIG_MEMORY_HOTPLUG
+ /* The balloon driver will take care of adding memory now. */
+ if (xen_saved_max_mem_size)
+ max_mem_size = xen_saved_max_mem_size;
+#endif
+
err = xenbus_scanf(XBT_NIL, "memory", "target", "%llu", &new_target);
if (err != 1) {
/* This is ok (for domain0 at least) - so just return */