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/virtio/virtio.h" 19 #include "hw/virtio/virtio-bus.h" 20 #include "hw/virtio/virtio-gpu-pci.h" 21 22 static Property virtio_gpu_pci_base_properties[] = { 23 DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy), 24 DEFINE_PROP_END_OF_LIST(), 25 }; 26 27 static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 28 { 29 VirtIOGPUPCIBase *vgpu = VIRTIO_GPU_PCI_BASE(vpci_dev); 30 VirtIOGPUBase *g = vgpu->vgpu; 31 DeviceState *vdev = DEVICE(g); 32 int i; 33 Error *local_error = NULL; 34 35 qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); 36 if (!virtio_pci_force_virtio_1(vpci_dev, errp)) { 37 return; 38 } 39 object_property_set_bool(OBJECT(vdev), true, "realized", &local_error); 40 41 if (local_error) { 42 error_propagate(errp, local_error); 43 return; 44 } 45 46 for (i = 0; i < g->conf.max_outputs; i++) { 47 object_property_set_link(OBJECT(g->scanout[i].con), 48 OBJECT(vpci_dev), 49 "device", errp); 50 } 51 } 52 53 static void virtio_gpu_pci_base_class_init(ObjectClass *klass, void *data) 54 { 55 DeviceClass *dc = DEVICE_CLASS(klass); 56 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 57 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 58 59 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 60 dc->props = virtio_gpu_pci_base_properties; 61 dc->hotpluggable = false; 62 k->realize = virtio_gpu_pci_base_realize; 63 pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER; 64 } 65 66 static const TypeInfo virtio_gpu_pci_base_info = { 67 .name = TYPE_VIRTIO_GPU_PCI_BASE, 68 .parent = TYPE_VIRTIO_PCI, 69 .instance_size = sizeof(VirtIOGPUPCIBase), 70 .class_init = virtio_gpu_pci_base_class_init, 71 .abstract = true 72 }; 73 74 #define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci" 75 #define VIRTIO_GPU_PCI(obj) \ 76 OBJECT_CHECK(VirtIOGPUPCI, (obj), TYPE_VIRTIO_GPU_PCI) 77 78 typedef struct VirtIOGPUPCI { 79 VirtIOGPUPCIBase parent_obj; 80 VirtIOGPU vdev; 81 } VirtIOGPUPCI; 82 83 static void virtio_gpu_initfn(Object *obj) 84 { 85 VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj); 86 87 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 88 TYPE_VIRTIO_GPU); 89 VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev); 90 } 91 92 static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = { 93 .generic_name = TYPE_VIRTIO_GPU_PCI, 94 .parent = TYPE_VIRTIO_GPU_PCI_BASE, 95 .instance_size = sizeof(VirtIOGPUPCI), 96 .instance_init = virtio_gpu_initfn, 97 }; 98 99 static void virtio_gpu_pci_register_types(void) 100 { 101 type_register_static(&virtio_gpu_pci_base_info); 102 virtio_pci_types_register(&virtio_gpu_pci_info); 103 } 104 105 type_init(virtio_gpu_pci_register_types) 106