9eafb62d47
This patch adds virtio-gpu-pci, which is the pci proxy for the virtio gpu device. With this patch in place virtio-gpu is functional. You need a linux guest with a virtio-gpu driver though, and output will appear pretty late in boot, once the kernel initialized drm and fbcon. Written by Dave Airlie and Gerd Hoffmann. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/*
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* Virtio video device
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*
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* Copyright Red Hat
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*
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* Authors:
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* Dave Airlie
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#include "hw/pci/pci.h"
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#include "hw/virtio/virtio.h"
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#include "hw/virtio/virtio-bus.h"
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#include "hw/virtio/virtio-pci.h"
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#include "hw/virtio/virtio-gpu.h"
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static Property virtio_gpu_pci_properties[] = {
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DEFINE_VIRTIO_GPU_PROPERTIES(VirtIOGPUPCI, vdev.conf),
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DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void virtio_gpu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
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{
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VirtIOGPUPCI *vgpu = VIRTIO_GPU_PCI(vpci_dev);
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DeviceState *vdev = DEVICE(&vgpu->vdev);
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qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
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/* force virtio-1.0 */
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vpci_dev->flags &= ~VIRTIO_PCI_FLAG_DISABLE_MODERN;
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vpci_dev->flags |= VIRTIO_PCI_FLAG_DISABLE_LEGACY;
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object_property_set_bool(OBJECT(vdev), true, "realized", errp);
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}
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static void virtio_gpu_pci_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
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PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
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set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
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dc->props = virtio_gpu_pci_properties;
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k->realize = virtio_gpu_pci_realize;
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pcidev_k->class_id = PCI_CLASS_DISPLAY_OTHER;
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}
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static void virtio_gpu_initfn(Object *obj)
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{
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VirtIOGPUPCI *dev = VIRTIO_GPU_PCI(obj);
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object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_GPU);
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object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
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}
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static const TypeInfo virtio_gpu_pci_info = {
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.name = TYPE_VIRTIO_GPU_PCI,
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.parent = TYPE_VIRTIO_PCI,
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.instance_size = sizeof(VirtIOGPUPCI),
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.instance_init = virtio_gpu_initfn,
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.class_init = virtio_gpu_pci_class_init,
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};
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static void virtio_gpu_pci_register_types(void)
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{
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type_register_static(&virtio_gpu_pci_info);
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}
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type_init(virtio_gpu_pci_register_types)
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