[PATCH v3 3/3] tools/kselftest: add MTE_FAR hwcap test

Catalin Marinas catalin.marinas at arm.com
Fri May 2 10:15:54 PDT 2025


On Thu, Apr 10, 2025 at 08:47:21AM +0100, Yeoreum Yun wrote:
> diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
> index 35f521e5f41c..a539eeb0bfc0 100644
> --- a/tools/testing/selftests/arm64/abi/hwcap.c
> +++ b/tools/testing/selftests/arm64/abi/hwcap.c
> @@ -1098,6 +1098,12 @@ static const struct hwcap_data {
>  		.sigill_fn = hbc_sigill,
>  		.sigill_reliable = true,
>  	},
> +	{
> +		.name = "MTE_FAR",
> +		.at_hwcap = AT_HWCAP3,
> +		.hwcap_bit = HWCAP3_MTE_FAR,
> +		.cpuinfo = "mte_far",
> +	},
>  };

This is all good but I'd also like to see a test to check the FAR_EL1
bits are actually exposed to the signal handler when the hwcap is
present.

-- 
Catalin



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