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-gpu-pci.h" 20 21 static Property virtio_gpu_pci_base_properties[] = { 22 DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy), 23 DEFINE_PROP_END_OF_LIST(), 24 }; 25 26 static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 27 { 28 VirtIOGPUPCIBase *vgpu = VIRTIO_GPU_PCI_BASE(vpci_dev); 29 VirtIOGPUBase *g = vgpu->vgpu; 30 DeviceState *vdev = DEVICE(g); 31 int i; 32 Error *local_error = NULL; 33 34 qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); 35 if (!virtio_pci_force_virtio_1(vpci_dev, errp)) { 36 return; 37 } 38 object_property_set_bool(OBJECT(vdev), true, "realized", &local_error); 39 40 if (local_error) { 41 error_propagate(errp, local_error); 42 return; 43 } 44 45 for (i = 0; i < g->conf.max_outputs; i++) { 46 object_property_set_link(OBJECT(g->scanout[i].con), 47 OBJECT(vpci_dev), 48 "device", errp); 49 } 50 } 51 52 static void virtio_gpu_pci_base_class_init(ObjectClass *klass, void *data) 53 { 54 DeviceClass *dc = DEVICE_CLASS(klass); 55 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 56 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 57 58 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 59 dc->props = virtio_gpu_pci_base_properties; 60 dc->hotpluggable = false; 61 k->realize = virtio_gpu_pci_base_realize; 62 pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER; 63 } 64 65 static const TypeInfo virtio_gpu_pci_base_info = { 66 .name = TYPE_VIRTIO_GPU_PCI_BASE, 67 .parent = TYPE_VIRTIO_PCI, 68 .instance_size = sizeof(VirtIOGPUPCIBase), 69 .class_init = virtio_gpu_pci_base_class_init, 70 .abstract = true 71 }; 72 73 #define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci" 74 #define VIRTIO_GPU_PCI(obj) \ 75 OBJECT_CHECK(VirtIOGPUPCI, (obj), TYPE_VIRTIO_GPU_PCI) 76 77 typedef struct VirtIOGPUPCI { 78 VirtIOGPUPCIBase parent_obj; 79 VirtIOGPU vdev; 80 } VirtIOGPUPCI; 81 82 static void virtio_gpu_initfn(Object *obj) 83 { 84 VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj); 85 86 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 87 TYPE_VIRTIO_GPU); 88 VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev); 89 } 90 91 static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = { 92 .generic_name = TYPE_VIRTIO_GPU_PCI, 93 .parent = TYPE_VIRTIO_GPU_PCI_BASE, 94 .instance_size = sizeof(VirtIOGPUPCI), 95 .instance_init = virtio_gpu_initfn, 96 }; 97 98 static void virtio_gpu_pci_register_types(void) 99 { 100 type_register_static(&virtio_gpu_pci_base_info); 101 virtio_pci_types_register(&virtio_gpu_pci_info); 102 } 103 104 type_init(virtio_gpu_pci_register_types) 105