Re: [seL4] Hardware Platform for sel4 and running linux as guest os

I think the only thing you can't do in linux is manage the MMU, since sel4 reserves that task to itself (plus it's a ring 0 operation and sel4 IIRC runs guests, even the linux kernel, as ring 3) What I'm not so sure about is I/O capabilities. Does seL4 require a system call to do I/O or can seL4 manipulate a task's IO permission bitmap? If the former, I think you could tie an exception handler to the linux kernel and use that to emulate any privileged opcodes. On Mon, Jan 4, 2016 at 1:35 PM, Julien Delange wrote:

So, there is no chance for running linux on top of sel4 on a beagleboard black?

On Mon, Jan 4, 2016 at 4:30 PM, Peter Chubb wrote:

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> "Andrea" == Andrea Sorbini writes:

Andrea> I can confirm from experience that seL4 supports both serial Andrea> and ethernet on the FreeScale Sabre Lite i.MX6 board (although Andrea> through some buggy, GPL'd, drivers for ethernet). No idea Andrea> about USB nor running Linux on top of seL4.

For running virtualised environments, you need a platform with the ARM virtualisation extensions -- a Cortex A53, A15 or A7. Our preferred platform was the Odroid XU; as this has been discontinued, we're looking around for a different readily available platform, preferably with a System MMU to protect all DMA. It's looking like the Nvidia Tegra TK1 will be apropriate, but we haven't started the port yet.

-- Dr Peter Chubb Tel: +61 2 8306 0552 http://www.data61.csiro.au http://www.ssrg.nicta.com.au Software Systems Research Group/NICTA/Data61

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