Re: [Qemu-devel] [PATCH v2 01/11] target/arm: Add ARM_FEATURE_V8_1_SIMD

[Peter Maydell <peter.maydell@linaro.org>]

On 18 December 2017 at 17:24, Richard Henderson
<richard.henderson@linaro.org> wrote:
> Enable it for the "any" CPU used by *-linux-user.
>
> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  target/arm/cpu.h     | 1 +
>  linux-user/elfload.c | 9 +++++++++
>  target/arm/cpu.c     | 1 +
>  target/arm/cpu64.c   | 1 +
>  4 files changed, 12 insertions(+)
>
> diff --git a/target/arm/cpu.h b/target/arm/cpu.h
> index 715ec6a476..e047756b80 100644
> --- a/target/arm/cpu.h
> +++ b/target/arm/cpu.h
> @@ -1351,6 +1351,7 @@ enum arm_features {
>      ARM_FEATURE_VBAR, /* has cp15 VBAR */
>      ARM_FEATURE_M_SECURITY, /* M profile Security Extension */
>      ARM_FEATURE_JAZELLE, /* has (trivial) Jazelle implementation */
> +    ARM_FEATURE_V8_1_SIMD, /* has ARMv8.1-SIMD */
>      ARM_FEATURE_V8_FP16, /* implements v8.2 half-precision float */
>  };

I kind of prefer the kernel's choice of ASIMDRDM rather than
V8_1_SIMD, but the latter is the official architectural feature
name, so oh well.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM