[RFC 0/2] vhost-user-test: Add negotiated features check

[Hyman Huang <yong.huang@smartx.com>]

The patchset "Fix the virtio features negotiation flaw" fix a
vhost-user negotiation flaw:
c9bdc449f9 vhost-user: Fix the virtio features negotiation flaw
bebcac052a vhost-user: Refactor the chr_closed_bh
937b7d96e4 vhost-user: Refactor vhost acked features saving

While the test case remain unmerged, the detail reference:
https://lore.kernel.org/qemu-devel/cover.1667232396.git.huangy81@chinatelecom.cn/

Since Michael pointed out that the info virtio makes sense to query
the negotiation feature, this patchset uses the x-query-virtio-status
to retrieve the features instead of exporting netdev capabilities and
information as we did in the previous patchset to aid in confirming
the negotiation's validity.

To do that, we first introduce an "show-bits" argument for
x-query-virtio-status such that the feature bits can be used
directly, and then implement the test case for negotiated features
check. As we post, the code is divided into two patches.

Please review, thanks,
Yong

Hyman Huang (2):
  qapi/virtio: introduce the "show-bits" argument for
    x-query-virtio-status
  vhost-user-test: Add negotiated features check

 hw/virtio/virtio-hmp-cmds.c   |   2 +-
 hw/virtio/virtio-qmp.c        |  21 ++++++-
 qapi/virtio.json              |  49 ++++++++++++++++-
 tests/qtest/vhost-user-test.c | 100 ++++++++++++++++++++++++++++++++++
 4 files changed, 167 insertions(+), 5 deletions(-)

-- 
2.39.1