From: Alex Bennée Date: Tue, 24 May 2022 15:40:44 +0000 (+0100) Subject: include/hw/virtio: document vhost_get_features X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2055c2a454b4265a7aa360212a75d4731f98429a;p=qemu.git include/hw/virtio: document vhost_get_features Signed-off-by: Alex Bennée Message-Id: <20220524154056.2896913-4-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Stefan Hajnoczi --- 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,