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virtio-gpu-pci.c (2947B)

      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 "qemu/module.h"
     17 #include "hw/pci/pci.h"
     18 #include "hw/qdev-properties.h"
     19 #include "hw/virtio/virtio.h"
     20 #include "hw/virtio/virtio-bus.h"
     21 #include "hw/virtio/virtio-gpu-pci.h"
     22 #include "qom/object.h"
     23 
     24 static Property virtio_gpu_pci_base_properties[] = {
     25     DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
     26     DEFINE_PROP_END_OF_LIST(),
     27 };
     28 
     29 static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
     30 {
     31     VirtIOGPUPCIBase *vgpu = VIRTIO_GPU_PCI_BASE(vpci_dev);
     32     VirtIOGPUBase *g = vgpu->vgpu;
     33     DeviceState *vdev = DEVICE(g);
     34     int i;
     35 
     36     virtio_pci_force_virtio_1(vpci_dev);
     37     if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) {
     38         return;
     39     }
     40 
     41     for (i = 0; i < g->conf.max_outputs; i++) {
     42         object_property_set_link(OBJECT(g->scanout[i].con), "device",
     43                                  OBJECT(vpci_dev), &error_abort);
     44     }
     45 }
     46 
     47 static void virtio_gpu_pci_base_class_init(ObjectClass *klass, void *data)
     48 {
     49     DeviceClass *dc = DEVICE_CLASS(klass);
     50     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
     51     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
     52 
     53     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
     54     device_class_set_props(dc, virtio_gpu_pci_base_properties);
     55     dc->hotpluggable = false;
     56     k->realize = virtio_gpu_pci_base_realize;
     57     pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER;
     58 }
     59 
     60 static const TypeInfo virtio_gpu_pci_base_info = {
     61     .name = TYPE_VIRTIO_GPU_PCI_BASE,
     62     .parent = TYPE_VIRTIO_PCI,
     63     .instance_size = sizeof(VirtIOGPUPCIBase),
     64     .class_init = virtio_gpu_pci_base_class_init,
     65     .abstract = true
     66 };
     67 module_obj(TYPE_VIRTIO_GPU_PCI_BASE);
     68 module_kconfig(VIRTIO_PCI);
     69 
     70 #define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci"
     71 typedef struct VirtIOGPUPCI VirtIOGPUPCI;
     72 DECLARE_INSTANCE_CHECKER(VirtIOGPUPCI, VIRTIO_GPU_PCI,
     73                          TYPE_VIRTIO_GPU_PCI)
     74 
     75 struct VirtIOGPUPCI {
     76     VirtIOGPUPCIBase parent_obj;
     77     VirtIOGPU vdev;
     78 };
     79 
     80 static void virtio_gpu_initfn(Object *obj)
     81 {
     82     VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj);
     83 
     84     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
     85                                 TYPE_VIRTIO_GPU);
     86     VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
     87 }
     88 
     89 static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = {
     90     .generic_name = TYPE_VIRTIO_GPU_PCI,
     91     .parent = TYPE_VIRTIO_GPU_PCI_BASE,
     92     .instance_size = sizeof(VirtIOGPUPCI),
     93     .instance_init = virtio_gpu_initfn,
     94 };
     95 module_obj(TYPE_VIRTIO_GPU_PCI);
     96 
     97 static void virtio_gpu_pci_register_types(void)
     98 {
     99     type_register_static(&virtio_gpu_pci_base_info);
    100     virtio_pci_types_register(&virtio_gpu_pci_info);
    101 }
    102 
    103 type_init(virtio_gpu_pci_register_types)