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In theory we shouldn't need to repeat so much boilerplate to support vhost-user backends. This provides a generic vhost-user-base QOM object and a derived vhost-user-device for which the user needs to provide the few bits of information that aren't currently provided by the vhost-user protocol. This should provide a baseline implementation from which the other vhost-user stub can specialise. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230710153522.3469097-8-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
45 lines
1 KiB
C
45 lines
1 KiB
C
/*
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* Vhost-user generic virtio device
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*
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* Copyright (c) 2023 Linaro Ltd
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef QEMU_VHOST_USER_DEVICE_H
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#define QEMU_VHOST_USER_DEVICE_H
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#include "hw/virtio/vhost.h"
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#include "hw/virtio/vhost-user.h"
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#define TYPE_VHOST_USER_BASE "vhost-user-base"
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OBJECT_DECLARE_TYPE(VHostUserBase, VHostUserBaseClass, VHOST_USER_BASE)
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struct VHostUserBase {
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VirtIODevice parent;
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/* Properties */
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CharBackend chardev;
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uint16_t virtio_id;
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uint32_t num_vqs;
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/* State tracking */
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VhostUserState vhost_user;
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struct vhost_virtqueue *vhost_vq;
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struct vhost_dev vhost_dev;
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GPtrArray *vqs;
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bool connected;
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};
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/* needed so we can use the base realize after specialisation
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tweaks */
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struct VHostUserBaseClass {
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/*< private >*/
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VirtioDeviceClass parent_class;
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/*< public >*/
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DeviceRealize parent_realize;
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};
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/* shared for the benefit of the derived pci class */
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#define TYPE_VHOST_USER_DEVICE "vhost-user-device"
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#endif /* QEMU_VHOST_USER_DEVICE_H */
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