hw/virtio/vhost-user-input.c

   1 /*
   2  * This work is licensed under the terms of the GNU GPL, version 2 or
   3  * (at your option) any later version.  See the COPYING file in the
   4  * top-level directory.
   5  */
   6
   7 #include "qemu/osdep.h"
   8 #include "hw/virtio/virtio-input.h"
   9
  10 static Property vinput_properties[] = {
  11     DEFINE_PROP_CHR("chardev", VHostUserBase, chardev),
  12     DEFINE_PROP_END_OF_LIST(),
  13 };
  14
  15 static void vinput_realize(DeviceState *dev, Error **errp)
  16 {
  17     VHostUserBase *vub = VHOST_USER_BASE(dev);
  18     VHostUserBaseClass *vubc = VHOST_USER_BASE_GET_CLASS(dev);
  19
  20     /* Fixed for input device */
  21     vub->virtio_id = VIRTIO_ID_INPUT;
  22     vub->num_vqs = 2;
  23     vub->vq_size = 4;
  24     vub->config_size = sizeof(virtio_input_config);
  25
  26     vubc->parent_realize(dev, errp);
  27 }
  28
  29 static const VMStateDescription vmstate_vhost_input = {
  30     .name = "vhost-user-input",
  31     .unmigratable = 1,
  32 };
  33
  34 static void vhost_input_class_init(ObjectClass *klass, void *data)
  35 {
  36     VHostUserBaseClass *vubc = VHOST_USER_BASE_CLASS(klass);
  37     DeviceClass *dc = DEVICE_CLASS(klass);
  38
  39     dc->vmsd = &vmstate_vhost_input;
  40     device_class_set_props(dc, vinput_properties);
  41     device_class_set_parent_realize(dc, vinput_realize,
  42                                     &vubc->parent_realize);
  43     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
  44 }
  45
  46 static const TypeInfo vhost_input_info = {
  47     .name          = TYPE_VHOST_USER_INPUT,
  48     .parent        = TYPE_VHOST_USER_BASE,
  49     .instance_size = sizeof(VHostUserInput),
  50     .class_init    = vhost_input_class_init,
  51 };
  52
  53 static void vhost_input_register_types(void)
  54 {
  55     type_register_static(&vhost_input_info);
  56 }
  57
  58 type_init(vhost_input_register_types)