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[PATCH v4 06/22] include/hw: document vhost_dev feature life-cycle
From: |
Alex Bennée |
Subject: |
[PATCH v4 06/22] include/hw: document vhost_dev feature life-cycle |
Date: |
Tue, 2 Aug 2022 10:49:54 +0100 |
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>
---
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;
--
2.30.2
- [PATCH v4 for 7.2 00/22] virtio-gpio and various virtio cleanups, Alex Bennée, 2022/08/02
- [PATCH v4 09/22] hw/virtio: add some vhost-user trace events, Alex Bennée, 2022/08/02
- [PATCH v4 03/22] hw/virtio: handle un-configured shutdown in virtio-pci, Alex Bennée, 2022/08/02
- [PATCH v4 06/22] include/hw: document vhost_dev feature life-cycle,
Alex Bennée <=
- [PATCH v4 01/22] hw/virtio: incorporate backend features in features, Alex Bennée, 2022/08/02
- [PATCH v4 07/22] hw/virtio: fix some coding style issues, Alex Bennée, 2022/08/02
- [PATCH v4 05/22] include/hw/virtio: more comment for VIRTIO_F_BAD_FEATURE, Alex Bennée, 2022/08/02
- [PATCH v4 17/22] tests/qtest: catch unhandled vhost-user messages, Alex Bennée, 2022/08/02
- [PATCH v4 18/22] tests/qtest: plain g_assert for VHOST_USER_F_PROTOCOL_FEATURES, Alex Bennée, 2022/08/02
- [PATCH v4 02/22] hw/virtio: gracefully handle unset vhost_dev vdev, Alex Bennée, 2022/08/02
- [PATCH v4 10/22] hw/virtio: move vm_running check to virtio_device_started, Alex Bennée, 2022/08/02
- [PATCH v4 04/22] hw/virtio: fix vhost_user_read tracepoint, Alex Bennée, 2022/08/02
- [PATCH v4 08/22] hw/virtio: log potentially buggy guest drivers, Alex Bennée, 2022/08/02
- [PATCH v4 13/22] hw/virtio: add vhost-user-gpio-pci boilerplate, Alex Bennée, 2022/08/02