Re: [PATCH 04/31] docs: mark CRIS support as deprecated

[Daniel P . Berrangé]

On Mon, Sep 25, 2023 at 03:48:27PM +0100, Alex Bennée wrote:
> This might be premature but while streamling the avocado tests I
> realised the only tests we have are "check-tcg" ones. The aging
> fedora-criss-cross image works well enough for developers but can't be
> used in CI as we need supported build platforms to build QEMU.
> 
> Does this mean the writing is on the wall for this architecture?

It was deleted in Linux, and GCC dropped the cris-*linux target,
but GCC keeps other cris targets.

IOW, at very least, it has become a niche use case target.

We don't need Linux/GCC support as a pre-requisite for having a
target in QEMU, but it sure makes it increasingly challenging
to test.

> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> Cc: Rabin Vincent <rabinv@axis.com>
> Cc: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
> ---
>  docs/about/deprecated.rst | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
> index dc4da95329..7cfe313aa6 100644
> --- a/docs/about/deprecated.rst
> +++ b/docs/about/deprecated.rst
> @@ -399,6 +399,17 @@ Specifying the iSCSI password in plain text on the 
> command line using the
>  used instead, to refer to a ``--object secret...`` instance that provides
>  a password via a file, or encrypted.
>  
> +TCG CPUs
> +--------
> +
> +CRIS CPU architecture (since 8.1)
> +'''''''''''''''''''''''''''''''''
> +
> +The CRIS architecture was pulled from Linux in 4.17 and the compiler
> +is no longer packaged in any distro making it harder to run the
> +``check-tcg`` tests. Unless we can improve the testing situation there
> +is a chance the code will bitrot without anyone noticing.
> +
>  Backwards compatibility
>  -----------------------
>  
> -- 
> 2.39.2
> 

With regards,
Daniel
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