README.spl-secure-boot 721 B

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  1. Overview of SPL verified boot on powerpc/mpc85xx & arm/layerscape platforms
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  3. Introduction
  4. ------------
  5. This document provides an overview of how SPL verified boot works on powerpc/
  6. mpc85xx & arm/layerscape platforms.
  7. Methodology
  8. -----------
  9. The SPL image is responsible for loading the next stage boot loader, which is
  10. the main u-boot image. For secure boot process on these platforms ROM verifies
  11. SPL image, so to continue chain of trust SPL image verifies U-boot image using
  12. spl_validate_uboot(). This function uses QorIQ Trust Architecture header
  13. (appended to U-boot image) to validate the U-boot binary just before passing
  14. control to it.