diff options
| author | Alex Bennée | 2022-05-24 17:40:44 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2022-06-28 00:53:18 +0200 |
| commit | 2055c2a454b4265a7aa360212a75d4731f98429a (patch) | |
| tree | 39c3d74c0e33d8f0d4b94586fc68866bb4899557 /include/hw/virtio | |
| parent | contrib/vhost-user-blk: fix 32 bit build and enable (diff) | |
| download | qemu-2055c2a454b4265a7aa360212a75d4731f98429a.tar.gz qemu-2055c2a454b4265a7aa360212a75d4731f98429a.tar.xz qemu-2055c2a454b4265a7aa360212a75d4731f98429a.zip | |
include/hw/virtio: document vhost_get_features
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220524154056.2896913-4-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>
Diffstat (limited to 'include/hw/virtio')
| -rw-r--r-- | include/hw/virtio/vhost.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/hw/virtio/vhost.h b/include/hw/virtio/vhost.h index 1e7cbd9a10..bfc71b7c50 100644 --- a/include/hw/virtio/vhost.h +++ b/include/hw/virtio/vhost.h @@ -247,6 +247,17 @@ bool vhost_virtqueue_pending(struct vhost_dev *hdev, int n); */ void vhost_virtqueue_mask(struct vhost_dev *hdev, VirtIODevice *vdev, int n, bool mask); + +/** + * vhost_get_features() - return a sanitised set of feature bits + * @hdev: common vhost_dev structure + * @feature_bits: pointer to terminated table of feature bits + * @features: original feature set + * + * This returns a set of features bits that is an intersection of what + * is supported by the vhost backend (hdev->features), the supported + * feature_bits and the requested feature set. + */ uint64_t vhost_get_features(struct vhost_dev *hdev, const int *feature_bits, uint64_t features); void vhost_ack_features(struct vhost_dev *hdev, const int *feature_bits, |