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Re: [PATCH v2 5/6] docs/about/deprecated: Deprecate 32-bit arm hosts
- To: "berrange@xxxxxxxxxx" <berrange@xxxxxxxxxx>, "peter.maydell@xxxxxxxxxx" <peter.maydell@xxxxxxxxxx>, "pbonzini@xxxxxxxxxx" <pbonzini@xxxxxxxxxx>, "thuth@xxxxxxxxxx" <thuth@xxxxxxxxxx>, "qemu-devel@xxxxxxxxxx" <qemu-devel@xxxxxxxxxx>
- From: Wilfred Mallawa <wilfred.mallawa@xxxxxxx>
- Date: Fri, 3 Mar 2023 00:57:12 +0000
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- Thread-topic: [PATCH v2 5/6] docs/about/deprecated: Deprecate 32-bit arm hosts
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On Thu, 2023-03-02 at 17:31 +0100, Thomas Huth wrote:
> For running QEMU in system emulation mode, the user needs a rather
> strong host system, i.e. not only an embedded low-frequency
> controller.
> All recent beefy arm host machines should support 64-bit now, it's
> unlikely that anybody is still seriously using QEMU on a 32-bit arm
> CPU, so we deprecate the 32-bit arm hosts here to finally save use
> some time and precious CI minutes.
>
> Signed-off-by: Thomas Huth <thuth@xxxxxxxxxx>
> ---
> docs/about/deprecated.rst | 9 +++++++++
> 1 file changed, 9 insertions(+)
Reviewed-by: Wilfred Mallawa <wilfred.mallawa@xxxxxxx>
>
> diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
> index 21ce70b5c9..c7113a7510 100644
> --- a/docs/about/deprecated.rst
> +++ b/docs/about/deprecated.rst
> @@ -229,6 +229,15 @@ discontinue it. Since all recent x86 hardware
> from the past >10 years
> is capable of the 64-bit x86 extensions, a corresponding 64-bit OS
> should be used instead.
>
> +System emulation on 32-bit arm hosts (since 8.0)
> +''''''''''''''''''''''''''''''''''''''''''''''''
> +
> +Since QEMU needs a strong host machine for running full system
> emulation, and
> +all recent powerful arm hosts support 64-bit, the QEMU project
> deprecates the
> +support for running any system emulation on 32-bit arm hosts in
> general. Use
> +64-bit arm hosts for system emulation instead. (Note: "user" mode
> emulation
> +continuous to be supported on 32-bit arm hosts, too)
> +
>
> QEMU API (QAPI) events
> ----------------------
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