Re: [PATCH] KVM: selftests: arm64: Correct feature test for S1PIE in get-reg-list

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On Wed, Jul 31, 2024 at 05:21:13PM +0100, Mark Brown wrote:
> The ID register for S1PIE is ID_AA64MMFR3_EL1.S1PIE which is bits 11:8 but
> get-reg-list uses a shift of 4, checking SCTLRX instead. Use a shift of 8
> instead.
> 
> Fixes: 5f0419a0083b ("KVM: selftests: get-reg-list: add Permission Indirection registers")
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>

Argh!

Thanks for spotting that.

Reviewed-by: Joey Gouly <joey.gouly@xxxxxxx>

> ---
>  tools/testing/selftests/kvm/aarch64/get-reg-list.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/kvm/aarch64/get-reg-list.c b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
> index 709d7d721760..4abebde78187 100644
> --- a/tools/testing/selftests/kvm/aarch64/get-reg-list.c
> +++ b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
> @@ -32,13 +32,13 @@ static struct feature_id_reg feat_id_regs[] = {
>  	{
>  		ARM64_SYS_REG(3, 0, 10, 2, 2),	/* PIRE0_EL1 */
>  		ARM64_SYS_REG(3, 0, 0, 7, 3),	/* ID_AA64MMFR3_EL1 */
> -		4,
> +		8,
>  		1
>  	},
>  	{
>  		ARM64_SYS_REG(3, 0, 10, 2, 3),	/* PIR_EL1 */
>  		ARM64_SYS_REG(3, 0, 0, 7, 3),	/* ID_AA64MMFR3_EL1 */
> -		4,
> +		8,
>  		1
>  	}
>  };
> 
> ---
> base-commit: 8400291e289ee6b2bf9779ff1c83a291501f017b
> change-id: 20240731-kvm-arm64-fix-s1pie-test-a40b6be58d7b
> 
> Best regards,
> -- 
> Mark Brown <broonie@xxxxxxxxxx>
> 




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