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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>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
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* vhost-user VGA 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 "virtio-vga.h"
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#define TYPE_VHOST_USER_VGA "vhost-user-vga"
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#define VHOST_USER_VGA(obj) \
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OBJECT_CHECK(VhostUserVGA, (obj), TYPE_VHOST_USER_VGA)
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typedef struct VhostUserVGA {
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VirtIOVGABase parent_obj;
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VhostUserGPU vdev;
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} VhostUserVGA;
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static void vhost_user_vga_inst_initfn(Object *obj)
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{
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VhostUserVGA *dev = VHOST_USER_VGA(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_VGA_BASE(dev)->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_vga_info = {
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.generic_name = TYPE_VHOST_USER_VGA,
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.parent = TYPE_VIRTIO_VGA_BASE,
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.instance_size = sizeof(struct VhostUserVGA),
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.instance_init = vhost_user_vga_inst_initfn,
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};
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static void vhost_user_vga_register_types(void)
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{
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virtio_pci_types_register(&vhost_user_vga_info);
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}
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type_init(vhost_user_vga_register_types)
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