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 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_base_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_base_properties; 59 dc->hotpluggable = false; 60 k->realize = virtio_gpu_pci_base_realize; 61 pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER; 62 } 63 64 static const TypeInfo virtio_gpu_pci_base_info = { 65 .name = TYPE_VIRTIO_GPU_PCI_BASE, 66 .parent = TYPE_VIRTIO_PCI, 67 .instance_size = sizeof(VirtIOGPUPCIBase), 68 .class_init = virtio_gpu_pci_base_class_init, 69 .abstract = true 70 }; 71 72 #define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci" 73 #define VIRTIO_GPU_PCI(obj) \ 74 OBJECT_CHECK(VirtIOGPUPCI, (obj), TYPE_VIRTIO_GPU_PCI) 75 76 typedef struct VirtIOGPUPCI { 77 VirtIOGPUPCIBase parent_obj; 78 VirtIOGPU vdev; 79 } VirtIOGPUPCI; 80 81 static void virtio_gpu_initfn(Object *obj) 82 { 83 VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj); 84 85 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 86 TYPE_VIRTIO_GPU); 87 VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev); 88 } 89 90 static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = { 91 .generic_name = TYPE_VIRTIO_GPU_PCI, 92 .parent = TYPE_VIRTIO_GPU_PCI_BASE, 93 .instance_size = sizeof(VirtIOGPUPCI), 94 .instance_init = virtio_gpu_initfn, 95 }; 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) 104