include/hw/mem/memory-device.h

   1 /*
   2  * Memory Device Interface
   3  *
   4  * Copyright (c) 2018 Red Hat, Inc.
   5  *
   6  * Authors:
   7  *  David Hildenbrand <david@redhat.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef MEMORY_DEVICE_H
  14 #define MEMORY_DEVICE_H
  15
  16 #include "qom/object.h"
  17 #include "hw/qdev.h"
  18
  19 #define TYPE_MEMORY_DEVICE "memory-device"
  20
  21 #define MEMORY_DEVICE_CLASS(klass) \
  22      OBJECT_CLASS_CHECK(MemoryDeviceClass, (klass), TYPE_MEMORY_DEVICE)
  23 #define MEMORY_DEVICE_GET_CLASS(obj) \
  24     OBJECT_GET_CLASS(MemoryDeviceClass, (obj), TYPE_MEMORY_DEVICE)
  25 #define MEMORY_DEVICE(obj) \
  26      INTERFACE_CHECK(MemoryDeviceState, (obj), TYPE_MEMORY_DEVICE)
  27
  28 typedef struct MemoryDeviceState {
  29     Object parent_obj;
  30 } MemoryDeviceState;
  31
  32 typedef struct MemoryDeviceClass {
  33     InterfaceClass parent_class;
  34
  35     uint64_t (*get_addr)(const MemoryDeviceState *md);
  36     uint64_t (*get_plugged_size)(const MemoryDeviceState *md);
  37     uint64_t (*get_region_size)(const MemoryDeviceState *md);
  38     void (*fill_device_info)(const MemoryDeviceState *md,
  39                              MemoryDeviceInfo *info);
  40 } MemoryDeviceClass;
  41
  42 MemoryDeviceInfoList *qmp_memory_device_list(void);
  43 uint64_t get_plugged_memory_size(void);
  44 uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint,
  45                                      uint64_t align, uint64_t size,
  46                                      Error **errp);
  47 void memory_device_plug_region(MachineState *ms, MemoryRegion *mr,
  48                                uint64_t addr);
  49 void memory_device_unplug_region(MachineState *ms, MemoryRegion *mr);
  50
  51 #endif