include/hw/virtio/vhost-user-device.h

   1 /*
   2  * Vhost-user generic virtio device
   3  *
   4  * Copyright (c) 2023 Linaro Ltd
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #ifndef QEMU_VHOST_USER_DEVICE_H
  10 #define QEMU_VHOST_USER_DEVICE_H
  11
  12 #include "hw/virtio/vhost.h"
  13 #include "hw/virtio/vhost-user.h"
  14
  15 #define TYPE_VHOST_USER_BASE "vhost-user-base"
  16
  17 OBJECT_DECLARE_TYPE(VHostUserBase, VHostUserBaseClass, VHOST_USER_BASE)
  18
  19 struct VHostUserBase {
  20     VirtIODevice parent;
  21     /* Properties */
  22     CharBackend chardev;
  23     uint16_t virtio_id;
  24     uint32_t num_vqs;
  25     uint32_t config_size;
  26     /* State tracking */
  27     VhostUserState vhost_user;
  28     struct vhost_virtqueue *vhost_vq;
  29     struct vhost_dev vhost_dev;
  30     GPtrArray *vqs;
  31     bool connected;
  32 };
  33
  34     /* needed so we can use the base realize after specialisation
  35        tweaks */
  36 struct VHostUserBaseClass {
  37     /*< private >*/
  38     VirtioDeviceClass parent_class;
  39     /*< public >*/
  40     DeviceRealize parent_realize;
  41 };
  42
  43 /* shared for the benefit of the derived pci class */
  44 #define TYPE_VHOST_USER_DEVICE "vhost-user-device"
  45
  46 #endif /* QEMU_VHOST_USER_DEVICE_H */