From: Hyman Huang <yong.huang@smartx.com>

This series offer an automated method to configure a vhostuser interface
in server mode, simplifying integration with DPDK-enabled Open vSwitch
bridges.

To ensure simplicity and forward compatibility, we introduce openvswitch
backend support for vhostuser interfaces in XML configuration, with an
optional 'autoiface' attribute.

Here is an example of the config for a vhostuser interface that attached
to bridge automatically:

    <interface type='vhostuser'>
      <mac address='52:54:00:3b:83:1b'/>
      <source type='unix' path='/tmp/vhost2.sock' mode='server'/>
      <virtualport type='openvswitch'>
        <parameters interfaceid='9317d6b7-5fae-4464-a7e9-87d90eff2204'/>
      </virtualport>
      <backend type='openvswitch' autoiface='yes'>
        <parameters bridge='ovsbr-ddpbxnhaq'/>
      </backend>
      <model type='virtio'/>
      <driver queues='5'/>
    </interface>

The backend element specifies the backend implementation of the vhostuser
interface type. The type attribute is required and currently supports
supports openvswitch and passt.

If type is openvswitch, the autoiface attribute may be specified (yes
or no), if autoiface is yes, the parameters element bridge attribute
is mandatory. Libvirt will derive the interface name by extracting the
substring after the '/' character in the vhostuser server path, and
attach it to the bridge specified by the bridge attribute.

Please review. Thanks.

Yong

Hyman Huang (4):
  qemu_passt: Make logFile backend-specific
  conf: Introduce autoiface attribute for vhostuser interface
  util: Add iface argument to virNetDevOpenvswitchAddPort
  qemu: Implement automatic attachment of the vhostuser port

 docs/formatdomain.rst                         | 37 ++++++++-
 src/conf/domain_conf.c                        | 75 +++++++++++++++++--
 src/conf/domain_conf.h                        | 13 +++-
 src/conf/domain_postparse.c                   | 46 ++++++++++++
 src/conf/domain_validate.c                    | 24 ++++++
 src/conf/schemas/domaincommon.rng             | 20 +++++
 src/lxc/lxc_process.c                         |  3 +-
 src/qemu/qemu_command.c                       |  3 +
 src/qemu/qemu_hotplug.c                       |  4 +
 src/qemu/qemu_interface.c                     | 46 ++++++++++++
 src/qemu/qemu_interface.h                     |  3 +
 src/qemu/qemu_passt.c                         |  4 +-
 src/qemu/qemu_process.c                       |  4 +
 src/util/virnetdevopenvswitch.c               | 36 ++++++++-
 src/util/virnetdevopenvswitch.h               | 10 ++-
 src/util/virnetdevtap.c                       |  3 +-
 .../net-vhostuser.x86_64-latest.xml           | 10 +++
 tests/qemuxmlconfdata/net-vhostuser.xml       | 10 +++
 18 files changed, 336 insertions(+), 15 deletions(-)

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2.27.0