From: Alex Bennée <alex.ben...@linaro.org>
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.ben...@linaro.org>
Acked-by: Jason Wang <jasow...@redhat.com>
Message-Id: <20220802095010.3330793-7-alex.ben...@linaro.org>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
include/hw/virtio/vhost.h | 3 +++
1 file changed, 3 insertions(+)
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;
--
MST
