1 files changed, 51 insertions, 0 deletions
diff --git a/include/hw/mem/memory-device.h b/include/hw/mem/memory-device.h
new file mode 100644
index 0000000000..2853b084b5
--- /dev/null
+++ b/include/hw/mem/memory-device.h
@@ -0,0 +1,51 @@
+/*
+ * Memory Device Interface
+ *
+ * Copyright (c) 2018 Red Hat, Inc.
+ *
+ * Authors:
+ *  David Hildenbrand <david@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef MEMORY_DEVICE_H
+#define MEMORY_DEVICE_H
+
+#include "qom/object.h"
+#include "hw/qdev.h"
+
+#define TYPE_MEMORY_DEVICE "memory-device"
+
+#define MEMORY_DEVICE_CLASS(klass) \
+     OBJECT_CLASS_CHECK(MemoryDeviceClass, (klass), TYPE_MEMORY_DEVICE)
+#define MEMORY_DEVICE_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(MemoryDeviceClass, (obj), TYPE_MEMORY_DEVICE)
+#define MEMORY_DEVICE(obj) \
+     INTERFACE_CHECK(MemoryDeviceState, (obj), TYPE_MEMORY_DEVICE)
+
+typedef struct MemoryDeviceState {
+    Object parent_obj;
+} MemoryDeviceState;
+
+typedef struct MemoryDeviceClass {
+    InterfaceClass parent_class;
+
+    uint64_t (*get_addr)(const MemoryDeviceState *md);
+    uint64_t (*get_plugged_size)(const MemoryDeviceState *md);
+    uint64_t (*get_region_size)(const MemoryDeviceState *md);
+    void (*fill_device_info)(const MemoryDeviceState *md,
+                             MemoryDeviceInfo *info);
+} MemoryDeviceClass;
+
+MemoryDeviceInfoList *qmp_memory_device_list(void);
+uint64_t get_plugged_memory_size(void);
+uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint,
+                                     uint64_t align, uint64_t size,
+                                     Error **errp);
+void memory_device_plug_region(MachineState *ms, MemoryRegion *mr,
+                               uint64_t addr);
+void memory_device_unplug_region(MachineState *ms, MemoryRegion *mr);
+
+#endif