On Thu, 2023-03-02 at 17:31 +0100, Thomas Huth wrote:
> Hardly anybody still uses 32-bit x86 hosts today, so we should start
> deprecating them to stop wasting our time and CI minutes here.
> For example, there are also still some unresolved problems with
> these:
> When emulating 64-bit binaries in user mode, TCG does not honor
> atomicity
> for 64-bit accesses, which is "perhaps worse than not working at all"
> (quoting Richard). Let's simply make it clear that people should use
> 64-bit x86 hosts nowadays and we do not intend to fix/maintain the
> old
> 32-bit stuff.
>
> Signed-off-by: Thomas Huth <th...@redhat.com>
> ---
> docs/about/deprecated.rst | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
Reviewed-by: Wilfred Mallawa <wilfred.mall...@wdc.com>
>
> diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
> index 11700adac9..a30aa8dfdf 100644
> --- a/docs/about/deprecated.rst
> +++ b/docs/about/deprecated.rst
> @@ -208,6 +208,18 @@ CI coverage support may bitrot away before the
> deprecation process
> completes. The little endian variants of MIPS (both 32 and 64 bit)
> are
> still a supported host architecture.
>
> +32-bit x86 hosts (since 8.0)
> +''''''''''''''''''''''''''''
> +
> +Support for 32-bit x86 host deployments is increasingly uncommon in
> +mainstream OS distributions given the widespread availability of 64-
> bit
> +x86 hardware. The QEMU project no longer considers 32-bit x86
> support
> +to be an effective use of its limited resources, and thus intends to
> +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.
> +
> +
> QEMU API (QAPI) events
> ----------------------
>
