[Qemu-devel] [PATCHv5 0/3] DEVICE_DELETED event

["Michael S. Tsirkin" <mst@redhat.com>]

libvirt has a long-standing bug: when removing the device,
it can request removal but does not know when the
removal completes. Add an event so we can fix this in a robust way.

First patch only adds the event for devices with ID, second path adds it
for all devices and adds a path fields. Split this way for ease of
backport (stable downstreams without QOM would want to only take the
first patch), and also because the 2nd/3rd patches might turn out to be
more controversial - if they really turn
out such I'd like just the 1st one to get applied while we discuss 2 and
3.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Changes from v4:
    - Add extra triggers and extra fields as requested by Markus

Changes from v3:
    - Document that we only emit events for devices with
      and ID, as suggested by Markus
Changes from v2:
    - move event toward the end of device_unparent,
      so that parents are reported after their children,
      as suggested by Paolo
Changes from v1:
    - move to device_unparent
    - address comments by Andreas and Eric


-- 
Anthony Liguori


Michael S. Tsirkin (3):
  qdev: DEVICE_DELETED event
  qom: pass original path to unparent method
  qmp: add path to device_deleted event

 QMP/qmp-events.txt        | 18 ++++++++++++++++++
 hw/qdev.c                 | 15 +++++++++++++--
 include/monitor/monitor.h |  1 +
 include/qom/object.h      |  3 ++-
 monitor.c                 |  1 +
 qapi-schema.json          |  4 +++-
 qom/object.c              |  4 +++-
 7 files changed, 41 insertions(+), 5 deletions(-)

-- 
MST