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Release 3 - UEFI

Changes Since Release 2 - SMP

  • Added U-Boot v2021.07 for UEFI support
  • Updated boot-wrapper-aarch64 revision and added support for booting U-Boot
  • Included boot-wrapper-aarch64 PSCI services in /memreserve/ region
  • Fixed the counter frequency initialization in boot-wrapper-aarch64
  • Configured the FVP to use the default RAM size of 4 Gb
  • Fixed PL011 and SP805 register sizes in the device tree
  • Added virtio_net User Networking mode by default and removed instructions about tap networking setup
  • Updated Linux kernel version from 5.10 to 5.14 for both standard and Real-Time (PREEMPT_RT) builds

BSP Support

The fvp-baser-aemv8r64 Yocto MACHINE supports the following BSP components, where either a standard or Real-Time Linux kernel (PREEMPT_RT) can be built and run:

  • boot-wrapper-aarch64: provides PSCI support
  • U-Boot: v2021.07: provides UEFI services
  • Linux kernel: linux-yocto-5.14

  • Linux kernel with PREEMPT_RT support: linux-yocto-rt-5.14

Note that the Real-Time Linux kernel (PREEMPT_RT) does not use the real-time architectural extensions of the Armv8-R feature set

High-Level Architecture

The diagram below shows the current boot flow:

BSP Support

The fvp-baser-aemv8r64 Yocto MACHINE supports the following BSP components, where either a standard or Real-Time Linux kernel (PREEMPT_RT) can be built and run