This release

• Fix the remoteproc lelf loader,
• add API release callback for the endpoint management to ensure that endpoint is released before freeing associate resources,
• add API wait callback to avoid looping in tx buffer get,
• add API for retrieving message buffer sizes,
• various code improvement in the library and application,
• fixes various bugs.

API Updates:

Deprecated APIs:

• cmake:

  • Deprecate VIRTIO_DEVICE_ONLY and VIRTIO_DRIVER_ONLY that are replaced by VIRTIO_DEVICE_SUPPORT=0/1 and VIRTIO_DEVICE_SUPPORT=0/1.
  • Remove deprecated VIRTIO_MASTER_ONLY and VIRTIO_MASTER_ONLY configs.

• virtio:

  • Deprecate virtio_create_virtqueues and virtio_delete_virtqueues that should only be used internally.

• virtio rpmsg:

  • deprecate rpmsg_virtio_set_status and rpmsg_virtio_get_status, virtio API should be used instead.

New APIs:

• rpmsg:

  • Add new rpmsg_ept_release_cb to inform application that a endpoint has been released.

• virtio rpmsg:

  • rpmsg_virtio_get_rx_buffer_sizeand rpmsg_get_rx_buffer_size: get the RPMsg buffer payload size.

• virtio:

  • wait_notified ops to implement specific action in virtio transport layer waiting new TX free buffer.

What's Changed

• rpmsg: set ept address to incease num when alloc from the bitmap by @GUIDINGLI in https://github.com/OpenAMP/open-amp/pull/514
• openamp: add new API rpmsg_virtio_get_rx_buffer_size() by @CV-Bowen in https://github.com/OpenAMP/open-amp/pull/521
• apps: Add use of rpmsg_virtio_get_tx/rx_buffer_size API by @arnopo in https://github.com/OpenAMP/open-amp/pull/535
• Fix https://github.com/OpenAMP/open-amp/issues/455 by @danmilea in https://github.com/OpenAMP/open-amp/pull/533
• rpmsg: let rpmsg_virtio_get_tx_buffer() always return idx in host side by @CV-Bowen in https://github.com/OpenAMP/open-amp/pull/520
• rpmsg: add release cb and refcnt in endpoint to fix ept used-after-free by @yintao707 in https://github.com/OpenAMP/open-amp/pull/508
• openamp: add new ops wait_notified() to avoid looping in tx buffer get by @CV-Bowen in https://github.com/OpenAMP/open-amp/pull/518
• remoteproc: clear bitmap when stop/shutdown by @CV-Bowen in https://github.com/OpenAMP/open-amp/pull/522
• rpmsg_virtio: add RPMSG_ASSERT to check the virtqueue add error by @CV-Bowen in https://github.com/OpenAMP/open-amp/pull/526
• Add missing include with EINVAL definition by @zaporozhets in https://github.com/OpenAMP/open-amp/pull/544
• lib: add include directory to open_amp-static target by @zaporozhets in https://github.com/OpenAMP/open-amp/pull/545
• remoteproc_virtio: initialize the virtio device id when create vdev by @CV-Bowen in https://github.com/OpenAMP/open-amp/pull/540
• openamp: change rx buffer hold flag to count by @CV-Bowen in https://github.com/OpenAMP/open-amp/pull/524
• remoteproc_virtio: fix vrings_info structure init by @arnopo in https://github.com/OpenAMP/open-amp/pull/554
• Fixes #550: OpenAMP elf loader loads ELF sections to their load addresses by @UmairKhanUET in https://github.com/OpenAMP/open-amp/pull/551
• load_fw: The firmware loading loop terminates prematurely by @UmairKhanUET in https://github.com/OpenAMP/open-amp/pull/556
• remoteproc_virtio: optimize the remoteproc virtio transport layer by @CV-Bowen in https://github.com/OpenAMP/open-amp/pull/489
• remoteproc: fix management of non loadable segments by @UmairKhanUET in https://github.com/OpenAMP/open-amp/pull/553
• openamp: decouple rpmsg virtio and remoteproc by @wyr8899 in https://github.com/OpenAMP/open-amp/pull/549
• Cleanup rsc_table_parser code and API by @glneo in https://github.com/OpenAMP/open-amp/pull/562
• Remove layer breaking functions from rpmsg_virtio by @glneo in https://github.com/OpenAMP/open-amp/pull/561
• remoteproc: Fix the NULL vs RPROC_IS_ERR() bug for remoteproc_get_rsc_table() by @mengtanhzc in https://github.com/OpenAMP/open-amp/pull/571
• apps: system: linux: Use metal_io_finish() for closing io by @glneo in https://github.com/OpenAMP/open-amp/pull/573

New Contributors

• @yintao707 made their first contribution in https://github.com/OpenAMP/open-amp/pull/508
• @zaporozhets made their first contribution in https://github.com/OpenAMP/open-amp/pull/544
• @UmairKhanUET made their first contribution in https://github.com/OpenAMP/open-amp/pull/551
• @wyr8899 made their first contribution in https://github.com/OpenAMP/open-amp/pull/549
• @mengtanhzc made their first contribution in https://github.com/OpenAMP/open-amp/pull/571

Full Changelog: https://github.com/OpenAMP/open-amp/compare/v2023.10.0...v2024.05.0