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Linux/MIPS enables software fixups for user-mode unaligned scalar accesses by default through MIPS_FIXADE/TIF_FIXADE. QEMU linux-user did not model that ABI, so MIPS guests took fatal AdEL/AdES exceptions unless translation was forced to use unaligned host accesses. Key MIPS translation blocks on the linux-user unaligned policy, implement sysmips(MIPS_FIXADE) to toggle that policy, and raise SIGBUS/BUS_ADRALN when fixups are disabled. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: James Hilliard <james.hilliard1@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20260520172313.23777-4-philmd@linaro.org>