As comment says: it's only for vhost-user. So, let's move it
to corresponding vhost backend realization.
Signed-off-by: Vladimir Sementsov-Ogievskiy <[email protected]>
---
backends/cryptodev-vhost.c | 1 -
hw/net/vhost_net.c | 2 --
hw/virtio/vhost-user.c | 23 ++++++++++++++++++++---
hw/virtio/virtio-qmp.c | 6 ++++--
include/hw/virtio/vhost-backend.h | 3 +++
include/hw/virtio/vhost.h | 8 --------
6 files changed, 27 insertions(+), 16 deletions(-)
diff --git a/backends/cryptodev-vhost.c b/backends/cryptodev-vhost.c
index 943680a23a..3bcdc494d8 100644
--- a/backends/cryptodev-vhost.c
+++ b/backends/cryptodev-vhost.c
@@ -60,7 +60,6 @@ cryptodev_vhost_init(
crypto->cc = options->cc;
- crypto->dev.protocol_features = 0;
crypto->backend = -1;
/* vhost-user needs vq_index to initiate a specific queue pair */
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index fcee279f0b..ce30b6e197 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -260,9 +260,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
goto fail;
}
net->backend = r;
- net->dev.protocol_features = 0;
} else {
- net->dev.protocol_features = 0;
net->backend = -1;
/* vhost-user needs vq_index to initiate a specific queue pair */
diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
index 6fa5b8a8bd..abdf47ee7b 100644
--- a/hw/virtio/vhost-user.c
+++ b/hw/virtio/vhost-user.c
@@ -11,6 +11,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/virtio/virtio-dmabuf.h"
+#include "hw/virtio/virtio-qmp.h"
#include "hw/virtio/vhost.h"
#include "hw/virtio/virtio-crypto.h"
#include "hw/virtio/vhost-user.h"
@@ -264,6 +265,14 @@ struct vhost_user {
/* Our current regions */
int num_shadow_regions;
struct vhost_memory_region shadow_regions[VHOST_USER_MAX_RAM_SLOTS];
+
+ /**
+ * @protocol_features: the vhost-user protocol feature set by
+ * VHOST_USER_SET_PROTOCOL_FEATURES. Protocol features are only
+ * negotiated if VHOST_USER_F_PROTOCOL_FEATURES has been offered
+ * by the backend (see @features).
+ */
+ uint64_t protocol_features;
};
struct scrub_regions {
@@ -274,7 +283,8 @@ struct scrub_regions {
static bool vhost_user_has_prot(struct vhost_dev *dev, uint64_t feature)
{
- return virtio_has_feature(dev->protocol_features, feature);
+ struct vhost_user *u = dev->opaque;
+ return virtio_has_feature(u->protocol_features, feature);
}
static int vhost_user_read_header(struct vhost_dev *dev, VhostUserMsg *msg)
@@ -2218,8 +2228,8 @@ static int vhost_user_backend_init(struct vhost_dev *dev,
void *opaque,
}
/* final set of protocol features */
- dev->protocol_features = protocol_features;
- err = vhost_user_set_protocol_features(dev, dev->protocol_features);
+ u->protocol_features = protocol_features;
+ err = vhost_user_set_protocol_features(dev, u->protocol_features);
if (err < 0) {
error_setg_errno(errp, EPROTO, "vhost_backend_init failed");
return -EPROTO;
@@ -3001,6 +3011,12 @@ static int vhost_user_check_device_state(struct
vhost_dev *dev, Error **errp)
return 0;
}
+static void vhost_user_qmp_status(struct vhost_dev *dev, VhostStatus *status)
+{
+ struct vhost_user *u = dev->opaque;
+ status->protocol_features = qmp_decode_protocols(u->protocol_features);
+}
+
const VhostOps user_ops = {
.backend_type = VHOST_BACKEND_TYPE_USER,
.vhost_backend_init = vhost_user_backend_init,
@@ -3041,4 +3057,5 @@ const VhostOps user_ops = {
.vhost_supports_device_state = vhost_user_supports_device_state,
.vhost_set_device_state_fd = vhost_user_set_device_state_fd,
.vhost_check_device_state = vhost_user_check_device_state,
+ .vhost_qmp_status = vhost_user_qmp_status,
};
diff --git a/hw/virtio/virtio-qmp.c b/hw/virtio/virtio-qmp.c
index e514a4797e..d55b12f9f3 100644
--- a/hw/virtio/virtio-qmp.c
+++ b/hw/virtio/virtio-qmp.c
@@ -788,12 +788,14 @@ VirtioStatus *qmp_x_query_virtio_status(const char *path,
Error **errp)
qmp_decode_features(vdev->device_id, hdev->features);
status->vhost_dev->acked_features =
qmp_decode_features(vdev->device_id, hdev->acked_features);
- status->vhost_dev->protocol_features =
- qmp_decode_protocols(hdev->protocol_features);
status->vhost_dev->max_queues = hdev->max_queues;
status->vhost_dev->backend_cap = hdev->backend_cap;
status->vhost_dev->log_enabled = hdev->log_enabled;
status->vhost_dev->log_size = hdev->log_size;
+
+ if (hdev->vhost_ops->vhost_qmp_status) {
+ hdev->vhost_ops->vhost_qmp_status(hdev, status->vhost_dev);
+ }
