Merge remote-tracking branch 'jkiszka/queues/qemu-merge' into next

Merge remote-tracking branch 'jkiszka/queues/qemu-merge' into next

* jkiszka/queues/qemu-merge: (103 commits)
  vnc: Limit r/w access to size of allocated memory
  vnc: don't mess up with iohandlers in the vnc thread
  qom: Introduce object_class_get_list()
  qom/object.c: rename type_class_init() to type_initialize()
  qom: if @instance_size==0, assign size of object to parent object size
  kvmvapic: align start address as well as size
  qom: Add QOM support to user emulators
  qom: Register QOM infrastructure early
  kvmclock: Always register type
  slirp: Fix compiler warning for w64
  slirp: Cleanup resources on instance removal
  slirp: Remove unneeded if_queued
  slirp: Fix queue walking in if_start
  slirp: Prevent recursion of if_start
  slirp: Keep next_m always valid
  Endian fix an assertion in usb-msd
  uhci: alloc can't fail, drop check.
  uhci: new uhci_handle_td return code for tds still in flight
  uhci: renumber uhci_handle_td return codes
  uhci: use enum for uhci_handle_td return codes
  ...

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>