[Buildroot] [PATCH 0/2] xtensa noMMU support

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Thu Mar 31 14:36:05 UTC 2016


Hello,

On Thu, 31 Mar 2016 06:20:51 +0300, Max Filippov wrote:

> > Is this actually the case?
> 
> The following patch would switch to elf2flt version that has xtensa support:
>   https://patchwork.ozlabs.org/patch/599708/

Ah, ok. I need to respin this series then.

> But I realize that elf2flt build is not enabled for xtensa, even with the
> above patch. I'll send a fix that enables it.

Seen your patch, thanks!

> It is possible to run noMMU kernel and userspace on MMUv3 cores
> with the mainline QEMU. Real noMMU cores need a fix that wasn't
> accepted to the QEMU mainline:
>   http://qemu.11.n7.nabble.com/PATCH-0-3-target-xtensa-xtfpga-support-cores-without-MMU-td358668.html
> I probably need to get back to it and make suggested changes.

OK.

Do you think you could submit a minimal defconfig that creates a noMMU
Xtensa system that runs under Qemu? I think it would be quite useful,
as it would the first noMMU Qemu configuration that we would have in
Buildroot.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com


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