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| author | Paolo Abeni <pabeni@redhat.com> | 2025-07-08 17:54:54 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-07-08 18:05:23 +0200 |
| commit | 333c515d189657c934470c9b0b8a8fedb016ce6f (patch) | |
| tree | 96c3e07a5cbbc9a0be9e105f024d5f88f271bdcc /drivers/vhost/vhost.c | |
| parent | 69b9461512246599ed80cf13358e7e6aff7285f9 (diff) | |
| download | linux-333c515d189657c934470c9b0b8a8fedb016ce6f.tar.gz linux-333c515d189657c934470c9b0b8a8fedb016ce6f.tar.bz2 linux-333c515d189657c934470c9b0b8a8fedb016ce6f.zip | |
vhost-net: allow configuring extended features
Use the extended feature type for 'acked_features' and implement
two new ioctls operation allowing the user-space to set/query an
unbounded amount of features.
The actual number of processed features is limited by VIRTIO_FEATURES_MAX
and attempts to set features above such limit fail with
EOPNOTSUPP.
Note that: the legacy ioctls implicitly truncate the negotiated
features to the lower 64 bits range and the 'acked_backend_features'
field don't need conversion, as the only negotiated feature there
is in the low 64 bit range.
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/vhost/vhost.c')
| -rw-r--r-- | drivers/vhost/vhost.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 3a5ebb973dba..1094256a943c 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -372,7 +372,7 @@ static void vhost_vq_reset(struct vhost_dev *dev, vq->log_used = false; vq->log_addr = -1ull; vq->private_data = NULL; - vq->acked_features = 0; + virtio_features_zero(vq->acked_features_array); vq->acked_backend_features = 0; vq->log_base = NULL; vq->error_ctx = NULL; |