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include/hw/virtio: document vhost_ack_features 

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220524154056.2896913-5-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Alex Bennée 2022-05-24 16:40:45 +01:00 committed by Michael S. Tsirkin
parent 2055c2a454
commit 81cf38f3ff
1 changed files with 10 additions and 0 deletions
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10
include/hw/virtio/vhost.h
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@ -260,6 +260,16 @@ void vhost_virtqueue_mask(struct vhost_dev *hdev, VirtIODevice *vdev, int n,
*/
uint64_t vhost_get_features(struct vhost_dev *hdev, const int *feature_bits,
uint64_t features);
/**
* vhost_ack_features() - set vhost acked_features
* @hdev: common vhost_dev structure
* @feature_bits: pointer to terminated table of feature bits
* @features: requested feature set
*
* This sets the internal hdev->acked_features to the intersection of
* the backends advertised features and the supported feature_bits.
*/
void vhost_ack_features(struct vhost_dev *hdev, const int *feature_bits,
uint64_t features);
bool vhost_has_free_slot(void);