[RFC PATCH v1 0/2] vhost-vdpa: cache Virtio states

[Shao-Chien Chiang <ray90514@gmail.com>]

Repetitive ioctls makes vdpa devices initialization and startup slow.
This patch series is to cache Virtio status, features, and config.
For each latency test, I use vdpa-sim-net as my vdpa device.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1579

Shao-Chien Chiang (2):
  vhost-vdpa: cache device status and features
  vhost-vdpa: cache device config

 hw/virtio/vhost-vdpa.c         | 60 ++++++++++++++++++++++++++--------
 include/hw/virtio/vhost-vdpa.h |  4 +++
 2 files changed, 50 insertions(+), 14 deletions(-)

-- 
2.25.1