.. _internal-subsystem:

Internal Subsystem Information
------------------------------

Details about QEMU's various subsystems including how to add features to them.

.. toctree::
   :maxdepth: 2

   qom
   atomics
   rcu
   block-coroutine-wrapper
   clocks
   ebpf_rss
   migration/index
   multi-process
   reset
   s390-cpu-topology
   s390-dasd-ipl
   tracing
   uefi-vars
   vfio-iommufd
   writing-monitor-commands
   virtio-backends
   crypto
   multiple-iothreads