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
  20 static Property virtio_gpu_pci_properties[] = {
  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     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
  45 static 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
  57 static 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
  65 static 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
  73 static void virtio_gpu_pci_register_types(void)
  74 {
  75     type_register_static(&virtio_gpu_pci_info);
  76 }
  77 type_init(virtio_gpu_pci_register_types)