S32GのトピックExecuting two Linux kernels on S32G274A

Executing two Linux kernels on S32G274A

tony-atlismv — Thu, 12 Aug 2021 21:42:56 GMT

I would like to know how to execute two Linux kernels, one on each set of Cortex-A53s with the processors in lockstep mode. Can this be done on a single SD card, or would I have to execute one Linux kernel from the SD card, and one Linux kernel from eMMC memory? How would the peripherals be allocated among the two Linux kernels and the M7 cores? I could not find anything in the S32G Linux manual about executing two separate Linux kernels.

Thanks in advance.

Re: Executing two Linux kernels on S32G274A

bpe — Fri, 13 Aug 2021 17:10:38 GMT

You can find generic recommendations on running multiple Linux instances on
S32G2 A53 cores in AN12971. The appnote does not talk specifically about
lockstep mode but it discusses a boot scenario where it can be added.
To have an idea what changes would be necessary, see S32G2 Reference Manual,
Sections 30.15 and 5.3

Hope this helps,
Platon

Re: Executing two Linux kernels on S32G274A

tony-atlismv — Fri, 13 Aug 2021 18:02:59 GMT

Thanks Platon, the AppNote helped a lot. It's exactly what I was looking for.

tony-atlismv

Re: Executing two Linux kernels on S32G274A

shuangjunzhu — Fri, 20 Aug 2021 06:24:31 GMT

Can you please let me know where I can download the source code for M7_Firmware for this application note?

Thanks,

Jeff

Re: Executing two Linux kernels on S32G274A

bpe — Fri, 27 Aug 2021 09:03:19 GMT

Section 1 of AN12971 states:

This document should be used as a guide only and not
as a full and robust solution.

There is no ready M7 core firmware that implements all ideas discussed in the Appnote. A good starting point for your own firmware development is Platform Software Integration for S32G2XX package which is part of NXP Reference Software for S32G2.

Best Regards,
Platon

Re: Executing two Linux kernels on S32G274A

SSyb — Wed, 26 Jul 2023 10:18:12 GMT

Hi all, It seems under the link found in above solution, AN12971 can not be downloaded anymore (see error screenshot. I would like to read that one as suggested by one of the NXP FAEs).

Any hint where I can get this application note ?

best regards, Stefan

Re: Executing two Linux kernels on S32G274A

sistlajr6 — Fri, 15 Sep 2023 03:01:01 GMT

Hi ,

I would like to understand , if we can bring up hypervisor on one cluster and Linux kernel on the other cluster or A53s on S32G2 ?

Re: Executing two Linux kernels on S32G274A

sistlajr6 — Fri, 15 Sep 2023 03:04:08 GMT

I am not able to download this file, is it possible to share this file for download