Re: Booting NetBSD/evbarm on QEMU (IntegratorCP)

[Nick Hudson <skrll%netbsd.org@localhost>]

On 02/06/13 22:43, Sergio López wrote:
> Hi,
>
> As part of a personal project to get familiar with the ARM
> architecture, I've been working on getting NetBSD/evbarm to boot on
> QEMU. I've based my work on the present support for ARM Integrator
> evaluation board.
>
> Right now, it boots and its able to mount root from ramdisk and NFS
> (though I've only tested the latter). This emulated board also
> includes a PL181 device for memory cards, but is not yet supported.
>
> You can find the patch here:
>
> http://blogs.nologin.es/slopez/uploads/integrator-qemu-2012-02-06.diff
>
> And a ready to use image here:
>
> http://blogs.nologin.es/slopez/uploads/netbsd.gz.ub

Cool. I wanted to do this myself, but never got around to it.

I'd prefer to see it called INTEGRATOR_CP and match the real hardware as 
close as
possible. If someone has real hardware to test on that'd be even better.


> It can be used with something like this: "qemu-system-arm -M
> integratorcp -cpu arm1136 -m 128m -kernel netbsd.gz.ub -serial stdio
> -net nic -net tap". This image doesn't contain a ramdisk, so you'll
> need an NFS with NetBSD/evbarm root, and a properly configured DHCP
> server.

I doubt the CPU will make a difference to qemu, so maybe default to the 
minimum CPU.

"Integrator/CP is compatible with the following Integrator Core Modules: 
ARM920T,
ARM922T-XA10, ARM926EJ-S, ARM946E-S and ARM966E-S, ARM1026EJ-S and 
ARM1136J(F)-S."

There appears to be a few magic numbers in there - can these be 
replaced, please? I'll look at some of the other details later

Nick