hw/display/virtio-gpu-pci.c

   1 /*
   2  * Virtio video device
   3  *
   4  * Copyright Red Hat
   5  *
   6  * Authors:
   7  *  Dave Airlie
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  *
  12  */
  13 #include "hw/pci/pci.h"
  14 #include "hw/virtio/virtio.h"
  15 #include "hw/virtio/virtio-bus.h"
  16 #include "hw/virtio/virtio-pci.h"
  17 #include "hw/virtio/virtio-gpu.h"
  18
  19 static Property virtio_gpu_pci_properties[] = {
  20     DEFINE_VIRTIO_GPU_PROPERTIES(VirtIOGPUPCI, vdev.conf),
  21     DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
  22     DEFINE_PROP_END_OF_LIST(),
  23 };
  24
  25 static void virtio_gpu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  26 {
  27     VirtIOGPUPCI *vgpu = VIRTIO_GPU_PCI(vpci_dev);
  28     DeviceState *vdev = DEVICE(&vgpu->vdev);
  29
  30     qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  31     /* force virtio-1.0 */
  32     vpci_dev->flags &= ~VIRTIO_PCI_FLAG_DISABLE_MODERN;
  33     vpci_dev->flags |= VIRTIO_PCI_FLAG_DISABLE_LEGACY;
  34     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  35 }
  36
  37 static void virtio_gpu_pci_class_init(ObjectClass *klass, void *data)
  38 {
  39     DeviceClass *dc = DEVICE_CLASS(klass);
  40     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  41     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  42
  43     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  44     dc->props = virtio_gpu_pci_properties;
  45     k->realize = virtio_gpu_pci_realize;
  46     pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER;
  47 }
  48
  49 static void virtio_gpu_initfn(Object *obj)
  50 {
  51     VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj);
  52     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_GPU);
  53     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
  54 }
  55
  56 static const TypeInfo virtio_gpu_pci_info = {
  57     .name = TYPE_VIRTIO_GPU_PCI,
  58     .parent = TYPE_VIRTIO_PCI,
  59     .instance_size = sizeof(VirtIOGPUPCI),
  60     .instance_init = virtio_gpu_initfn,
  61     .class_init = virtio_gpu_pci_class_init,
  62 };
  63
  64 static void virtio_gpu_pci_register_types(void)
  65 {
  66     type_register_static(&virtio_gpu_pci_info);
  67 }
  68 type_init(virtio_gpu_pci_register_types)