libvirt event before migration












0















I'm trying to remove a pci device "ivshmem" which can't be migrated before migration.



I have used libvirt hook script which can't connect libvirtd when hooking, so failed to remove pci device .



then, i found libvirt api "libvirt-event" and register with "VIR_DOMAIN_EVENT_ID_LIFECYCLE", but which is the event "before migrate"



here is my code:



libvirt.virEventRegisterDefaultImpl()

def event_lifecycle_cb(conn, dom, event, detail, opaque):
print ""
print "=-" * 25
print "%s event: %s detail %s" % (dom.name(), str(event), str(detail))
#print "%s: event: %s (%s)" % (dom.name(), VIR_DOMAIN_EVENT_MAPPING.get(event, "?"), event)
#print "%s: state: %s (%s)" % (dom.name(), VIR_DOMAIN_STATE_MAPPING.get(dom.state()[0], "?"), dom.state()[0])
if event == 2:
#
if event == 3 and detail == 1:
# delete the pci device
print "=-" * 25


def conn_register_event_id_lifecycle(conn):
conn.domainEventRegisterAny(
None,
libvirt.VIR_DOMAIN_EVENT_ID_LIFECYCLE,
event_lifecycle_cb,
conn)

# setup connection
#conn=libvirt.open("xen:///")
conn=libvirt.open("qemu:///system")
if conn == None:
print 'Failed to open connection to the hypervisor'
sys.exit(1)

# register events
conn_register_event_id_lifecycle(conn)

# event loop
while True:
libvirt.virEventRunDefaultImpl()


thanks in advance for any pointer










share|improve this question



























    0















    I'm trying to remove a pci device "ivshmem" which can't be migrated before migration.



    I have used libvirt hook script which can't connect libvirtd when hooking, so failed to remove pci device .



    then, i found libvirt api "libvirt-event" and register with "VIR_DOMAIN_EVENT_ID_LIFECYCLE", but which is the event "before migrate"



    here is my code:



    libvirt.virEventRegisterDefaultImpl()

    def event_lifecycle_cb(conn, dom, event, detail, opaque):
    print ""
    print "=-" * 25
    print "%s event: %s detail %s" % (dom.name(), str(event), str(detail))
    #print "%s: event: %s (%s)" % (dom.name(), VIR_DOMAIN_EVENT_MAPPING.get(event, "?"), event)
    #print "%s: state: %s (%s)" % (dom.name(), VIR_DOMAIN_STATE_MAPPING.get(dom.state()[0], "?"), dom.state()[0])
    if event == 2:
    #
    if event == 3 and detail == 1:
    # delete the pci device
    print "=-" * 25


    def conn_register_event_id_lifecycle(conn):
    conn.domainEventRegisterAny(
    None,
    libvirt.VIR_DOMAIN_EVENT_ID_LIFECYCLE,
    event_lifecycle_cb,
    conn)

    # setup connection
    #conn=libvirt.open("xen:///")
    conn=libvirt.open("qemu:///system")
    if conn == None:
    print 'Failed to open connection to the hypervisor'
    sys.exit(1)

    # register events
    conn_register_event_id_lifecycle(conn)

    # event loop
    while True:
    libvirt.virEventRunDefaultImpl()


    thanks in advance for any pointer










    share|improve this question

























      0












      0








      0








      I'm trying to remove a pci device "ivshmem" which can't be migrated before migration.



      I have used libvirt hook script which can't connect libvirtd when hooking, so failed to remove pci device .



      then, i found libvirt api "libvirt-event" and register with "VIR_DOMAIN_EVENT_ID_LIFECYCLE", but which is the event "before migrate"



      here is my code:



      libvirt.virEventRegisterDefaultImpl()

      def event_lifecycle_cb(conn, dom, event, detail, opaque):
      print ""
      print "=-" * 25
      print "%s event: %s detail %s" % (dom.name(), str(event), str(detail))
      #print "%s: event: %s (%s)" % (dom.name(), VIR_DOMAIN_EVENT_MAPPING.get(event, "?"), event)
      #print "%s: state: %s (%s)" % (dom.name(), VIR_DOMAIN_STATE_MAPPING.get(dom.state()[0], "?"), dom.state()[0])
      if event == 2:
      #
      if event == 3 and detail == 1:
      # delete the pci device
      print "=-" * 25


      def conn_register_event_id_lifecycle(conn):
      conn.domainEventRegisterAny(
      None,
      libvirt.VIR_DOMAIN_EVENT_ID_LIFECYCLE,
      event_lifecycle_cb,
      conn)

      # setup connection
      #conn=libvirt.open("xen:///")
      conn=libvirt.open("qemu:///system")
      if conn == None:
      print 'Failed to open connection to the hypervisor'
      sys.exit(1)

      # register events
      conn_register_event_id_lifecycle(conn)

      # event loop
      while True:
      libvirt.virEventRunDefaultImpl()


      thanks in advance for any pointer










      share|improve this question














      I'm trying to remove a pci device "ivshmem" which can't be migrated before migration.



      I have used libvirt hook script which can't connect libvirtd when hooking, so failed to remove pci device .



      then, i found libvirt api "libvirt-event" and register with "VIR_DOMAIN_EVENT_ID_LIFECYCLE", but which is the event "before migrate"



      here is my code:



      libvirt.virEventRegisterDefaultImpl()

      def event_lifecycle_cb(conn, dom, event, detail, opaque):
      print ""
      print "=-" * 25
      print "%s event: %s detail %s" % (dom.name(), str(event), str(detail))
      #print "%s: event: %s (%s)" % (dom.name(), VIR_DOMAIN_EVENT_MAPPING.get(event, "?"), event)
      #print "%s: state: %s (%s)" % (dom.name(), VIR_DOMAIN_STATE_MAPPING.get(dom.state()[0], "?"), dom.state()[0])
      if event == 2:
      #
      if event == 3 and detail == 1:
      # delete the pci device
      print "=-" * 25


      def conn_register_event_id_lifecycle(conn):
      conn.domainEventRegisterAny(
      None,
      libvirt.VIR_DOMAIN_EVENT_ID_LIFECYCLE,
      event_lifecycle_cb,
      conn)

      # setup connection
      #conn=libvirt.open("xen:///")
      conn=libvirt.open("qemu:///system")
      if conn == None:
      print 'Failed to open connection to the hypervisor'
      sys.exit(1)

      # register events
      conn_register_event_id_lifecycle(conn)

      # event loop
      while True:
      libvirt.virEventRunDefaultImpl()


      thanks in advance for any pointer







      virtualization qemu kvm libvirt






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 21 '18 at 2:52









      chen.jtchen.jt

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