46ce017167
virtio-vsock features, like VIRTIO_VSOCK_F_SEQPACKET, can be handled by vhost-vsock-common parent class. In this way, we can reuse the same code for all virtio-vsock backends (i.e. vhost-vsock, vhost-user-vsock). Let's move `seqpacket` property to vhost-vsock-common class, add vhost_vsock_common_get_features() used by children, and disable `seqpacket` for vhost-user-vsock device for machine types < 6.2. The behavior of vhost-vsock device doesn't change; vhost-user-vsock device now supports `seqpacket` property. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Message-Id: <20210921161642.206461-3-sgarzare@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
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* Parent class for vhost-vsock devices
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*
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* Copyright 2015-2020 Red Hat, Inc.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* (at your option) any later version. See the COPYING file in the
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* top-level directory.
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*/
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#ifndef _QEMU_VHOST_VSOCK_COMMON_H
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#define _QEMU_VHOST_VSOCK_COMMON_H
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#include "hw/virtio/virtio.h"
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#include "hw/virtio/vhost.h"
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#include "qom/object.h"
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#define TYPE_VHOST_VSOCK_COMMON "vhost-vsock-common"
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OBJECT_DECLARE_SIMPLE_TYPE(VHostVSockCommon, VHOST_VSOCK_COMMON)
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enum {
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VHOST_VSOCK_SAVEVM_VERSION = 0,
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VHOST_VSOCK_QUEUE_SIZE = 128,
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};
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struct VHostVSockCommon {
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VirtIODevice parent;
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struct vhost_virtqueue vhost_vqs[2];
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struct vhost_dev vhost_dev;
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VirtQueue *event_vq;
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VirtQueue *recv_vq;
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VirtQueue *trans_vq;
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QEMUTimer *post_load_timer;
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/* features */
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OnOffAuto seqpacket;
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};
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int vhost_vsock_common_start(VirtIODevice *vdev);
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void vhost_vsock_common_stop(VirtIODevice *vdev);
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int vhost_vsock_common_pre_save(void *opaque);
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int vhost_vsock_common_post_load(void *opaque, int version_id);
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void vhost_vsock_common_realize(VirtIODevice *vdev, const char *name);
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void vhost_vsock_common_unrealize(VirtIODevice *vdev);
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uint64_t vhost_vsock_common_get_features(VirtIODevice *vdev, uint64_t features,
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Error **errp);
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#endif /* _QEMU_VHOST_VSOCK_COMMON_H */
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