This brings behavior of passt+vhostuser in line with trad-passt - if
the passt process is somehow terminated, libvirt will start a new
passt process that qemu will connect to.

You'll notice no change in behavior if your QEMU binary doesn't have
the patches that add NETDEV_VHOST_USER_DISCONNECTED to qemu, but also
nothing extra will fail. The requisite QEMU patches are upstream in
commit 02fd9f8aeeb1 ("net: vhost-user: add QAPI events to report
connection state"), which will be in upstream qemu-10.0.0.

Resolves: https://issues.redhat.com/browse/RHEL-80169

Laine Stump (5):
  qemu: remove nonsensical sanity check in
    processNetdevStreamDisconnectedEvent()
  qemu: make processNetDevStreamDisconnectedEvent() reusable
  qemu: respond to NETDEV_VHOST_USER_DISCONNECTED event
  qemu: put vhost-user code that's special for passt in a helper
    function
  qemu: make passt+vhostuser reconnect behave identically to passt+user

 src/qemu/qemu_domain.c                        |  1 +
 src/qemu/qemu_domain.h                        |  1 +
 src/qemu/qemu_driver.c                        | 55 ++++++++++++-------
 src/qemu/qemu_hotplug.c                       |  7 +--
 src/qemu/qemu_monitor.c                       | 11 ++++
 src/qemu/qemu_monitor.h                       |  6 ++
 src/qemu/qemu_monitor_json.c                  | 16 ++++++
 src/qemu/qemu_passt.c                         | 25 +++++++++
 src/qemu/qemu_passt.h                         |  3 +
 src/qemu/qemu_process.c                       | 27 ++++++---
 .../net-vhostuser-passt.x86_64-latest.args    |  6 +-
 ...rder-domain-subelements.x86_64-latest.args |  2 +-
 12 files changed, 122 insertions(+), 38 deletions(-)

-- 
2.49.0

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