LXR qemu/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 "sysemu/hostmem.h"
  19
  20#define TYPE_VIRTIO_PMEM "virtio-pmem"
  21
  22#define VIRTIO_PMEM(obj) \
  23        OBJECT_CHECK(VirtIOPMEM, (obj), TYPE_VIRTIO_PMEM)
  24#define VIRTIO_PMEM_CLASS(oc) \
  25        OBJECT_CLASS_CHECK(VirtIOPMEMClass, (oc), TYPE_VIRTIO_PMEM)
  26#define VIRTIO_PMEM_GET_CLASS(obj) \
  27        OBJECT_GET_CLASS(VirtIOPMEMClass, (obj), TYPE_VIRTIO_PMEM)
  28
  29#define VIRTIO_PMEM_ADDR_PROP "memaddr"
  30#define VIRTIO_PMEM_MEMDEV_PROP "memdev"
  31
  32typedef struct VirtIOPMEM {
  33    VirtIODevice parent_obj;
  34
  35    VirtQueue *rq_vq;
  36    uint64_t start;
  37    HostMemoryBackend *memdev;
  38} VirtIOPMEM;
  39
  40typedef struct VirtIOPMEMClass {
  41    /* private */
  42    VirtIODevice parent;
  43
  44    /* public */
  45    void (*fill_device_info)(const VirtIOPMEM *pmem, VirtioPMEMDeviceInfo *vi);
  46    MemoryRegion *(*get_memory_region)(VirtIOPMEM *pmem, Error **errp);
  47} VirtIOPMEMClass;
  48
  49#endif
  50