Thursday, February 21 • 10:30am - 11:20am
FIT Image Format: Inspired by Kernel's Device Tree - Joel Fernandes, Texas Instruments, Inc.

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The legacy U-boot image format is quickly becoming outdated as multi-component images are quickly becoming necessary. Images now not only carry a kernel, but also a device tree blob, ramdisk image etc for instance. With the increasing importance of security, storing multiple signatures and certificates structures in an image are also becoming common. The struct image_header in the legacy U-boot image format is not flexible enough to cover all multi image formats. Components of a kernel boot image might have to be loaded into different parts of memory before booting. A new image format (Flattened Image tree) similar to FDT solves some these problems.

Audience is U-boot and Kernel developers who work on kernel boot and security boot. They can expect an introduction to FIT, its motivation, advantages with an example. Technical Expertise required is familiarity with kernel boot mechanisms.

avatar for Joel Fernandes

Joel Fernandes

Engineer, Amazon
Joel has worked on several domains in Embedded Systems software and hardware at both SoC vendors and OEMs alike. He has deep knowledge and understanding of Linux device drivers and kernel architecture and blogs about these at LinuxInternals.org. At his day job at Amazon, he actively... Read More →

Thursday February 21, 2013 10:30am - 11:20am
Cyril Magnin I Parc 55 Wyndham Hotel 55 Cyril Magnin Street, San Francisco, CA 94102

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