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
  14 #include "qemu/osdep.h"
  15 #include "qapi/error.h"
  16 #include "hw/pci/pci.h"
  17 #include "hw/virtio/virtio.h"
  18 #include "hw/virtio/virtio-bus.h"
  19 #include "hw/virtio/virtio-pci.h"
  20 #include "hw/virtio/virtio-gpu.h"
  21
  22 static Property virtio_gpu_pci_properties[] = {
  23     DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
  24     DEFINE_PROP_END_OF_LIST(),
  25 };
  26
  27 static void virtio_gpu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  28 {
  29     VirtIOGPUPCI *vgpu = VIRTIO_GPU_PCI(vpci_dev);
  30     VirtIOGPU *g = &vgpu->vdev;
  31     DeviceState *vdev = DEVICE(&vgpu->vdev);
  32     int i;
  33     Error *local_error = NULL;
  34
  35     qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  36     virtio_pci_force_virtio_1(vpci_dev);
  37     object_property_set_bool(OBJECT(vdev), true, "realized", &local_error);
  38
  39     if (local_error) {
  40         error_propagate(errp, local_error);
  41         return;
  42     }
  43
  44     for (i = 0; i < g->conf.max_outputs; i++) {
  45         object_property_set_link(OBJECT(g->scanout[i].con),
  46                                  OBJECT(vpci_dev),
  47                                  "device", errp);
  48     }
  49 }
  50
  51 static void virtio_gpu_pci_class_init(ObjectClass *klass, void *data)
  52 {
  53     DeviceClass *dc = DEVICE_CLASS(klass);
  54     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  55     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  56
  57     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  58     dc->props = virtio_gpu_pci_properties;
  59     dc->hotpluggable = false;
  60     k->realize = virtio_gpu_pci_realize;
  61     pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER;
  62 }
  63
  64 static void virtio_gpu_initfn(Object *obj)
  65 {
  66     VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj);
  67
  68     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  69                                 TYPE_VIRTIO_GPU);
  70 }
  71
  72 static const TypeInfo virtio_gpu_pci_info = {
  73     .name = TYPE_VIRTIO_GPU_PCI,
  74     .parent = TYPE_VIRTIO_PCI,
  75     .instance_size = sizeof(VirtIOGPUPCI),
  76     .instance_init = virtio_gpu_initfn,
  77     .class_init = virtio_gpu_pci_class_init,
  78 };
  79
  80 static void virtio_gpu_pci_register_types(void)
  81 {
  82     type_register_static(&virtio_gpu_pci_info);
  83 }
  84 type_init(virtio_gpu_pci_register_types)