[Qemu-devel] [RFC 00/10] virtio-crypto: add multiplexing mode support

["Longpeng(Mike)" <longpeng2@huawei.com>]

*NOTE*
The code realization is based on the latest virtio crypto spec:
 [PATCH v21 0/2] virtio-crypto: virtio crypto device specification

In session mode, the process of create/close a session
makes we have a least one full round-trip cost from guest to host to guest
to be able to send any data for symmetric algorithms. It gets ourself into
synchronization troubles in some scenarios like a web server handling lots
of small requests whose algorithms and keys are different.

We can support one-blob request (no sessions) as well for symmetric
algorithms, including HASH, MAC services. The benefit is obvious for
HASH service because it's usually a one-blob operation.

---
Gonglei (2):
  cryptodev: extract one util function
  virtio-crypto: add host feature bits support

Longpeng(Mike) (8):
  virtio-crypto: remove virtio_crypto_op_ctrl_req structure
  virtio-crypto: add session creation logic for mux mode
  virtio-crypto: remove queue_id field in ctrl header
  virtio-crypto: remove virtio_crypto_op_data_req structure
  virtio-crypto: add dataq operation logic for mux mode
  cryptodev: add stateless mode cipher support
  virtio-crypto: add stateless crypto request handler
  cryptodev-builtin: add stateless cipher support

 backends/cryptodev-builtin.c                   | 189 +++++++++---
 backends/cryptodev.c                           |  21 ++
 hw/virtio/virtio-crypto.c                      | 403 +++++++++++++++++++++++--
 include/hw/virtio/virtio-crypto.h              |   2 +
 include/standard-headers/linux/virtio_crypto.h | 199 ++++++++++--
 include/sysemu/cryptodev.h                     |  21 ++
 6 files changed, 735 insertions(+), 100 deletions(-)

-- 
1.8.3.1