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| author | Alex Bennée | 2022-08-02 11:49:54 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2022-10-07 15:41:51 +0200 |
| commit | c7066f2d30d6d9c7f83cf741afb2f489e0cdd16d (patch) | |
| tree | 1c50b71a5981b0524f78f766c36b1b48ce854f41 /include | |
| parent | include/hw/virtio: more comment for VIRTIO_F_BAD_FEATURE (diff) | |
| download | qemu-c7066f2d30d6d9c7f83cf741afb2f489e0cdd16d.tar.gz qemu-c7066f2d30d6d9c7f83cf741afb2f489e0cdd16d.tar.xz qemu-c7066f2d30d6d9c7f83cf741afb2f489e0cdd16d.zip | |
include/hw: document vhost_dev feature life-cycle
Try and explicitly document the various state of feature bits as
related to the vhost_dev structure. Importantly the backend_features
can advertise things like VHOST_USER_F_PROTOCOL_FEATURES which is
never exposed to the driver and is only present in the vhost-user
feature negotiation.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220802095010.3330793-7-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/virtio/vhost.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/hw/virtio/vhost.h b/include/hw/virtio/vhost.h index a346f23d13..586c5457e2 100644 --- a/include/hw/virtio/vhost.h +++ b/include/hw/virtio/vhost.h @@ -86,8 +86,11 @@ struct vhost_dev { /* if non-zero, minimum required value for max_queues */ int num_queues; uint64_t features; + /** @acked_features: final set of negotiated features */ uint64_t acked_features; + /** @backend_features: backend specific feature bits */ uint64_t backend_features; + /** @protocol_features: final negotiated protocol features */ uint64_t protocol_features; uint64_t max_queues; uint64_t backend_cap; |