Linux microPlatform OpenEmbedded / Yocto Layers

The Linux microPlatform is composed of several OpenEmbedded and Yocto Project layers, including the core build system, distribution, images and BSPs.

Linux microPlatform Layers

Layer	Description
OpenEmbedded-Core (Base)	This is the main collaboration point when working on OpenEmbedded projects and is part of the core recipes. It is distro-less and contains only emulated machine support. It also provides the default toolchain used by the Linux microPlatform (lmp) distribution.
Meta-OpenEmbedded	This layer houses a collection of layers and recipes for the OE-core universe. Since the reduction in recipes to the core, meta-openembedded was created for everything else. There are currently approximately 650 recipes in this layer. It is used by the Linux microPlatform for additional utilities and network support.
Meta-Virtualization	This layer provides support for building Docker, LXC, Xen, KVM, Libvirt, and associated packages necessary for constructing OE-based virtualized / container solutions. It is used by the Linux microPlatform for Docker container runtime support.
Meta-Updater	This layer provides support for OTA Software Updates using OSTree and TUF / Uptane.
Meta-LMP (Distro)	This layer provides the Linux microPlatform distribution configuration, unified Kernel and images.
Meta-Intel (BSP)	This is the board support layer for Intel based devices.
Meta-RaspberryPi (BSP)	This is the board support layer for the Raspberry Pi boards.
Meta-RISC-V (BSP)	This is the general hardware specific BSP overlay for RISC-V based devices.
Meta-Yocto (BSP)	This is the board support layer for the Yocto Project hardware references, such as BeagleBone Black.
Meta-Freescale (BSP)	This is the board support layer for the Freescale platforms.
Meta-Freescale-3rdparty (BSP)	This is an additional board support layer for Freescale platforms (not officially supported by Meta-Freescale maintainers).

Linux microPlatform Meta-LMP Layer

The Meta-LMP layer provides the Linux microPlatform distribution configuration and a base set of recipes and configs, such as a unified Linux kernel and a gateway image.

The Linux microPlatform distribution configuration can be found at conf/distro/lmp.conf and conf/distro/include/lmp.inc.

The lmp-gateway-image recipe can be found at recipes-samples/images/lmp-gateway-image.bb. You can find the default set of packages used by the image via the CORE_IMAGE_BASE_INSTALL variable.