LXR qemu/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 or later.
  10 * See the COPYING file in the top-level directory.
  11 *
  12 */
  13#include "qemu/osdep.h"
  14#include "hw/pci/pci.h"
  15#include "hw/virtio/virtio.h"
  16#include "hw/virtio/virtio-bus.h"
  17#include "hw/virtio/virtio-pci.h"
  18#include "hw/virtio/virtio-gpu.h"
  19
  20static Property virtio_gpu_pci_properties[] = {
  21    DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
  22    DEFINE_PROP_END_OF_LIST(),
  23};
  24
  25static void virtio_gpu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  26{
  27    VirtIOGPUPCI *vgpu = VIRTIO_GPU_PCI(vpci_dev);
  28    VirtIOGPU *g = &vgpu->vdev;
  29    DeviceState *vdev = DEVICE(&vgpu->vdev);
  30    int i;
  31
  32    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  33    /* force virtio-1.0 */
  34    vpci_dev->flags &= ~VIRTIO_PCI_FLAG_DISABLE_MODERN;
  35    vpci_dev->flags |= VIRTIO_PCI_FLAG_DISABLE_LEGACY;
  36    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  37
  38    for (i = 0; i < g->conf.max_outputs; i++) {
  39        object_property_set_link(OBJECT(g->scanout[i].con),
  40                                 OBJECT(vpci_dev),
  41                                 "device", errp);
  42    }
  43}
  44
  45static void virtio_gpu_pci_class_init(ObjectClass *klass, void *data)
  46{
  47    DeviceClass *dc = DEVICE_CLASS(klass);
  48    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  49    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  50
  51    set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  52    dc->props = virtio_gpu_pci_properties;
  53    k->realize = virtio_gpu_pci_realize;
  54    pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER;
  55}
  56
  57static void virtio_gpu_initfn(Object *obj)
  58{
  59    VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj);
  60
  61    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  62                                TYPE_VIRTIO_GPU);
  63}
  64
  65static const TypeInfo virtio_gpu_pci_info = {
  66    .name = TYPE_VIRTIO_GPU_PCI,
  67    .parent = TYPE_VIRTIO_PCI,
  68    .instance_size = sizeof(VirtIOGPUPCI),
  69    .instance_init = virtio_gpu_initfn,
  70    .class_init = virtio_gpu_pci_class_init,
  71};
  72
  73static void virtio_gpu_pci_register_types(void)
  74{
  75    type_register_static(&virtio_gpu_pci_info);
  76}
  77type_init(virtio_gpu_pci_register_types)
  78