include/hw/virtio/virtio-pmem.h

   1 /*
   2  * Virtio PMEM device
   3  *
   4  * Copyright (C) 2018-2019 Red Hat, Inc.
   5  *
   6  * Authors:
   7  *  Pankaj Gupta <pagupta@redhat.com>
   8  *  David Hildenbrand <david@redhat.com>
   9  *
  10  * This work is licensed under the terms of the GNU GPL, version 2.
  11  * See the COPYING file in the top-level directory.
  12  */
  13
  14 #ifndef HW_VIRTIO_PMEM_H
  15 #define HW_VIRTIO_PMEM_H
  16
  17 #include "hw/virtio/virtio.h"
  18 #include "qapi/qapi-types-machine.h"
  19 #include "qom/object.h"
  20
  21 #define TYPE_VIRTIO_PMEM "virtio-pmem"
  22
  23 OBJECT_DECLARE_TYPE(VirtIOPMEM, VirtIOPMEMClass,
  24                     VIRTIO_PMEM)
  25
  26 #define VIRTIO_PMEM_ADDR_PROP "memaddr"
  27 #define VIRTIO_PMEM_MEMDEV_PROP "memdev"
  28
  29 struct VirtIOPMEM {
  30     VirtIODevice parent_obj;
  31
  32     VirtQueue *rq_vq;
  33     uint64_t start;
  34     HostMemoryBackend *memdev;
  35 };
  36
  37 struct VirtIOPMEMClass {
  38     /* private */
  39     VirtIODevice parent;
  40
  41     /* public */
  42     void (*fill_device_info)(const VirtIOPMEM *pmem, VirtioPMEMDeviceInfo *vi);
  43     MemoryRegion *(*get_memory_region)(VirtIOPMEM *pmem, Error **errp);
  44 };
  45
  46 #endif