L4/Iguana

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L4/Iguana
Software Details:
Version: 1.0
Upload Date: 3 Jun 15
Distribution Type: Freeware
Downloads: 8

Rating: 3.0/5 (Total Votes: 1)

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Iguana is designed as a base for the provision of operating system (OS) services for embedded systems. Among others, it provides the underlying OS for Wombat, our version of paravirtualised Linux designed to provide legacy support for embedded systems.

Iguana runs on top of the L4 microkernel, presently the Version 4 API as implemented by L4Ka::Pistachio. L4/Iguana is designed to support a painless transition to the new security-oriented API being developed for L4.

While it borrows many ideas from the Mungi operating system, Iguana's target domain of embedded systems requires a different approach to a number of issues. The main characteristics of Iguana's design are:

- Iguana complements, rather than hides the underlying L4 API. It provides services virtually every OS environment requires, such as memory and protection management, and a device driver framework;
- the memory and cache footprints of Iguana are kept small;
- low-overhead sharing of data is supported;
- Iguana supports the separation of protection and translation, by encouraging a non-overlapping address-space layout. This means that Iguana-based systems can be readily deployed on processors without virtual memory, and can also obtain the best possible performance on the ARM7 and ARM9 cores widely used in embedded systems.

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