Re: [PATCH v3 4/4] tools/kselftest: add MTE_STORE_ONLY feature hwcap test

[Catalin Marinas <catalin.marinas@arm.com>]

On Thu, Apr 10, 2025 at 09:07:23AM +0100, Yeoreum Yun wrote:
> add MTE_STORE_ONLY feature hwcap test.
> 
> Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com>
> Reviewed-by: Mark Brown <broonie@kernel.org>
> ---
>  tools/testing/selftests/arm64/abi/hwcap.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
> index a539eeb0bfc0..32385f67498e 100644
> --- a/tools/testing/selftests/arm64/abi/hwcap.c
> +++ b/tools/testing/selftests/arm64/abi/hwcap.c
> @@ -1104,6 +1104,12 @@ static const struct hwcap_data {
>  		.hwcap_bit = HWCAP3_MTE_FAR,
>  		.cpuinfo = "mte_far",
>  	},
> +	{
> +		.name = "MTE_STOREONLY",
> +		.at_hwcap = AT_HWCAP3,
> +		.hwcap_bit = HWCAP3_MTE_STORE_ONLY,
> +		.cpuinfo = "mte_store_only",
> +	},
>  };

Please also add checks to tools/testing/selftests/arm64/mte/ to verify
that read tag check faults are ignored when this is enabled.

-- 
Catalin