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review.trustedfirmware.org / mirror / mcuboot / 2473ac0e5b6020109eb45387022031fbd0382a98
commit2473ac0e5b6020109eb45387022031fbd0382a98[log] [tgz]
authorFabio Utzig <utzig@utzig.org>Tue May 02 12:45:02 2017 -0300
committerFabio Utzig <utzig@utzig.org>Wed May 24 08:58:59 2017 -0400
tree834ff2856845f0dfc53240885b46b6f9ec3ac5a6
parent7ebb7c23d90fba468c73951c66bd5f1bae11a2d8 [diff]
Add support for swapping only fw sectors in use

Before this patch, the swapping would process all sectors in a slot
not matter what the size of the binary firmware was. This changes the
swap process to swap only sectors that are in use by firmware.

Also, if the last slot sector, which stores the trailer, is actually not
in use by the binary firmware, now trailer is never written to scratch.
`use_scratch` temp variable was added to boot_status struct to control
this (this var is never written to disk).

Random other small refactorings were applied.
3 files changed
tree: 834ff2856845f0dfc53240885b46b6f9ec3ac5a6
  1. apps/
  2. boot/
  3. doc/
  4. imgtool/
  5. scripts/
  6. sim/
  7. .gitignore
  8. .travis.yml
  9. build_boot.sh
  10. Makefile
  11. project.yml
  12. README-zephyr.rst
  13. README.md
  14. repository.yml
  15. root-ec-p256.pem
  16. root-rsa-2048.pem
  17. sign.sh
README.md

mcuboot

Overview

MCUBoot is a secure bootloader for 32-bit MCUs. The goal of MCUBoot is to define a common infrastructure for the bootloader, system flash layout on microcontroller systems, and to provide a secure bootloader that enables easy software upgrade.

MCUboot is operating system and hardware independent, and relies on hardware porting layers from the operating system it works with. Currently mcuboot works with both the Apache Mynewt, and Zephyr operating systems, but more ports are planned in the future.

Roadmap

The MCUBoot project was originally taken from the Apache Mynewt operating system, which had secure boot and software upgrade functionality instrinsic to it. Currently development is heads down on a first release of MCUboot that works across both the Zephyr operating system and Apache Mynewt operating system.

For more information on what's being planned, and worked on, please visit:

https://runtimeco.atlassian.net/projects/MCUB/summary

Browsing

Information and documentation on the bootloader is stored within the source, and on confluence:

https://runtimeco.atlassian.net/wiki/discover/all-updates

For more information in the source, here are some pointers:

  • boot/bootutil: The core of the bootloader itself.
  • boot/boot_serial: Support for serial upgrade within the bootloader itself.
  • boot/zephyr: Port of the bootloader to Zephyr
  • imgtool: A tool to securely sign firmware images for booting by mcuboot.
  • sim: A bootloader simulator for testing and regression

Joining

Developers welcome! To join in the discussion, please join the developer mailing list:

http://lists.runtime.co/mailman/listinfo/dev-mcuboot_lists.runtime.co