Merge tag 'migration-20240116-pull-request' of https://gitlab.com/pet…

…erx/qemu into staging

Migration pull request 2nd batch for 9.0

- Het's cleanup on migration qmp command paths
- Fabiano's migration cleanups and test improvements
- Fabiano's patch to re-enable multifd-cancel test
- Peter's migration doc reorganizations
- Nick Briggs's fix for Solaries build on rdma

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* tag 'migration-20240116-pull-request' of https://gitlab.com/peterx/qemu:
  migration/rdma: define htonll/ntohll only if not predefined
  docs/migration: Further move virtio to be feature of migration
  docs/migration: Further move vfio to be feature of migration
  docs/migration: Organize "Postcopy" page
  docs/migration: Split "dirty limit"
  docs/migration: Split "Postcopy"
  docs/migration: Split "Debugging" and "Firmware"
  docs/migration: Split "Backwards compatibility" separately
  docs/migration: Convert virtio.txt into rST
  docs/migration: Create index page
  docs/migration: Create migration/ directory
  tests/qtest: Re-enable multifd cancel test
  tests/qtest/migration: Use the new migration_test_add
  tests/qtest/migration: Add a wrapper to print test names
  tests/qtest/migration: Print migration incoming errors
  migration: Report error in incoming migration
  migration/multifd: Change multifd_pages_init argument
  migration/multifd: Remove QEMUFile from where it is not needed
  migration/multifd: Remove MultiFDPages_t::packet_num
  migration: Simplify initial conditionals in migration for better readability

Signed-off-by: Peter Maydell <[email protected]>

docs/devel/index-internals.rst

@@ -11,13 +11,12 @@ Details about QEMU's various subsystems including how to add features to them.
    block-coroutine-wrapper
    clocks
    ebpf_rss
-   migration
+   migration/index
    multi-process
    reset
    s390-cpu-topology
    s390-dasd-ipl
    tracing
-   vfio-migration
    vfio-iommufd
    writing-monitor-commands
    virtio-backends