Re: [Minios-devel] [PATCH 00/40] MINI-OS: enable the arm64 support

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

Julien Grall, on ven. 03 nov. 2017 11:49:16 +0000, wrote:
> I can see two solutions going forward:
>       1) The arm directory is first reshaped to welcome arm64. This means:
>               * moving out arm32 specific code
>               * switch to LPAE page-table
>               * introducing helpers for common code to call arch-specific code
>          On the code is reshaped, the arm64 series is added on top.
> 
>       2) Start the arm64 port from a clean slate and then port arm32 over.
> 
> Knowing the state of the arm32 port, I would lean towards 2). This would
> allow more flexibility and make easier to review. At the moment, I have to
> hunt down the code to see what is missing.
> 
> I would be interested to hear the opinion of the maintainers here.

Personally I almost don't know ARM, so I can't speak for the code
itself.  Is the arm32 port actually used by somebody?  If it doesn't
even compile, it's probably "no", and thus possibly not worth trying to
reuse it, and going straight to 2) would be easier indeed.

Samuel

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