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[20110126] NetBSD/emips port committed (Update #2)
I've mentioned this in the past, and it's in the official tree now - citing from Antti Kantee's posting: ``I have just committed support for the Extensible MIPS ("eMIPS") platform. The NetBSD/emips port runs on Xilinx and Beecube FPGA systems and the Giano system simulator.

eMIPS is a platform developed at Microsoft Research for researching reconfigurable computing. eMIPS allows dynamic loading and scheduling of application-specific circuits for the purpose of accelerating computations based on the current workload.

NetBSD eMIPS support for NetBSD 4.x was written at Microsoft Research by Alessandro Forin and Neil Pittman. Microsoft Corporation has donated full copyright to The NetBSD Foundation.

Platform support for eMIPS is the first part of Microsoft's contribution. The second part includes the hardware accelerator framework and will be proposed on tech-kern soon.''

Update: The NetBSD Blog has an entry with more details, including a screenshot with boot output. Oh, and there's a NetBSD/emips port page, too!

Update #2: Antti was so kind to point me at the paper published by the people behind NetBSD/emips, titled An online scheduler for hardware accelerators on general- purpose operating systems: ``This paper presents an online scheduling algorithm for hardware accelerators and its implementation on the NetBSD operating system. The scheduler uses the current performance characteristics of the accelerators to select which accelerators to load and unload. [...] The NetBSD modifications consist primarily in loadable kernel modules, with minimal changes to the operating system itself.''. Secion 7 goes into details WRT NetBSD and the (LKM based) kernel modules..

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[20101222] Microsoft offers download for NetBSD/eMIPS
NetBSD has quite a number of mirror sites, but I wasn't aware that Microsoft (yes, THE Microsoft) is also offering NetBSD for download: ``NetBSD for eMIPS - This download contains the ISO CD image for installing NetBSD 4.0.1 on an eMIPS processor system. The download works for the Xilinx XUP board and the Giano simulator.''

A bit dated, but hey! More information about the "extensible MIPS" project is also available on Microsoft's website.

Maybe it's time to update my 2005 research WRT NetBSD at Microsoft? (Thanks for the initial hint, Volkmar!)

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