There will be some cases where the implementation of the snapshot()
function from the Snapshottable trait will require to modify some
internal data, therefore we make this possible by updating the trait
definition with snapshot(&mut self).
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This patch adds the seccomp filter list for the virtio_net thread, while
the list was already added for the virtio_net_ctl thread.
Partially fixes: #925
Signed-off-by: Bo Chen <chen.bo@intel.com>
The current seccomp filter for virtio-net is actually for the worker
thread 'virtio_net_ctl' (not the actual worker thread
'virtio_net'). This patch introduces changes to distinguish those two
worker threads and seccomp filters.
Signed-off-by: Bo Chen <chen.bo@intel.com>
Using the Rust Barrier mechanism, this patch forces each virtio device
to acknowledge they've been correctly paused before going further.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Migrate virtio-net and vhost-user-net control queue to EpollHelper so
as to remove code duplication.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Instead of passing only the event type through the handle_event()
callback, we make the trait slightly more generic by providing the
epoll event to each virtio device implementation.
This is particularly useful for vsock as it will need the event set.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
EpollHelper allows the removal of much duplicated loop handling code and
instead the device specific even handling is delegated via an
implementation of EpollHelperHandler.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Move NetQueuePair and the related NetCounters into the net_util crate.
This means that the vhost_user_net crate now no longer depends on
virtio-devices and so does not depend on the pci, qcow or other similar
crates. This significantly simplifies the build chain for this backend.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
By moving the code for opening the two RX and TX queues into a shared
location we are starting to remove the requirement for the
vhost-user-net backend to depend on the virtio-devices crate which in of
itself depends on many other crates that are not necessary for the
backend to function.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
By moving the code for opening the TAP device into a shared location we
are starting to remove the requirement for the vhost-user-net backend to
depend on the virtio-devices crate which in of itself depends on many
other crates that are not necessary for the backend to function.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Split the generic virtio code (queues and device type) from the
VirtioDevice trait, transport and device implementations.
This also simplifies the feature handling in vhost_user_backend as the
vm-virtio crate is no longer has any features.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
