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Add new virtio-gpu devices with a "vhost-user" property. The associated vhost-user backend is used to handle the virtio rings and provide rendering results thanks to the vhost-user-gpu protocol. Example usage: -object vhost-user-backend,id=vug,cmd="./vhost-user-gpu" -device vhost-user-vga,vhost-user=vug Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20190524130946.31736-10-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
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* vhost-user GPU PCI device
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*
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* Copyright Red Hat, Inc. 2018
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "hw/virtio/virtio-gpu-pci.h"
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#define TYPE_VHOST_USER_GPU_PCI "vhost-user-gpu-pci"
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#define VHOST_USER_GPU_PCI(obj) \
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OBJECT_CHECK(VhostUserGPUPCI, (obj), TYPE_VHOST_USER_GPU_PCI)
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typedef struct VhostUserGPUPCI {
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VirtIOGPUPCIBase parent_obj;
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VhostUserGPU vdev;
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} VhostUserGPUPCI;
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static void vhost_user_gpu_pci_initfn(Object *obj)
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{
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VhostUserGPUPCI *dev = VHOST_USER_GPU_PCI(obj);
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virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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TYPE_VHOST_USER_GPU);
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VIRTIO_GPU_PCI_BASE(obj)->vgpu = VIRTIO_GPU_BASE(&dev->vdev);
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object_property_add_alias(obj, "chardev",
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OBJECT(&dev->vdev), "chardev",
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&error_abort);
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}
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static const VirtioPCIDeviceTypeInfo vhost_user_gpu_pci_info = {
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.generic_name = TYPE_VHOST_USER_GPU_PCI,
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.parent = TYPE_VIRTIO_GPU_PCI_BASE,
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.instance_size = sizeof(VhostUserGPUPCI),
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.instance_init = vhost_user_gpu_pci_initfn,
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};
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static void vhost_user_gpu_pci_register_types(void)
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{
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virtio_pci_types_register(&vhost_user_gpu_pci_info);
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}
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type_init(vhost_user_gpu_pci_register_types)
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