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Linux User-Mode Port |
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Welcome to the Fiasco-UX Microkernel!
Fiasco-UX is a port of the Fiasco microkernel to the Linux system-call interface. Due to its special design, it runs without kernel-level privileges, despite the fact that it is a fully functional L4 microkernel. Because it uses GNU/Linux as host system, it can run on any x86-based system as a normal user-mode application.Fiasco-UX has become a valuable part of the L4 toolchain. Compared to using a native L4 microkernel for developing and testing L4 applications it has some major advantages:
- Rapid Prototyping:
Application development and testing can be done on the same machine. Rebooting of the test machine is now unnecessary. By simply ending and restarting Fiasco-UX, the "virtual L4 box" is rebooted and tests can be repeated. With the complex BIOS versions of today's hardware, this is a real time saver. - Multiple Users:
Since Fiasco-UX runs as an application on a standard, unmodified Linux machine, multiple users can test their L4 applications on the same machine at the same time. - Availability:
Linux machines for running Fiasco-UX are available almost everywhere. In a new environment, it is sometimes difficult or for security reasons not permitted to change the operating system of machines. Hence, an L4 or L4Linux machine is not always available.
