[PATCH V4 6/6] riscv: Test for specific SBI implementation ID

[Andrew Jones]

On Wed, Mar 13, 2024 at 10:50:57PM +0100, cem at kernel.org wrote:
> From: Carlos Maiolino <cem at kernel.org>
> 
> Retrieve the ID from the SBI, and test it against the IMPL_ID
> enviroment variable.
> 
> Signed-off-by: Carlos Maiolino <cmaiolino at redhat.com>
> 
> ---
> V4:
> 	- Definitely update to use __base_sbi_ecall
> V3:
> 	- Update to use __base_sbi_ecall (also fixes the correct paramenters)
> 	- Rename env var to IMPL_ID to match the other tests
> V2:
> 	- Update commit description to fit 70 chars
> 	- Move sbi_ecall() after expected assignment to make consistent with
> 	  other tests
> 
>  riscv/sbi.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/riscv/sbi.c b/riscv/sbi.c
> index 043beb04..2a4002df 100644
> --- a/riscv/sbi.c
> +++ b/riscv/sbi.c
> @@ -58,6 +58,14 @@ static void check_base(void)
>  	}
>  	report_prefix_pop();
>  
> +	report_prefix_push("impl_id");
> +	if (env_or_skip("IMPL_ID")) {
> +		expected = strtol(getenv("IMPL_ID"), NULL, 0);
> +		ret = __base_sbi_ecall(SBI_EXT_BASE_GET_IMP_ID, 0);
> +		gen_report(&ret, 0, expected);
> +	}
> +	report_prefix_pop();
> +
>  	report_prefix_push("probe_ext");
>  	expected = getenv("PROBE_EXT") ? strtol(getenv("PROBE_EXT"), NULL, 0) : 1;
>  	ret = __base_sbi_ecall(SBI_EXT_BASE_PROBE_EXT, SBI_EXT_BASE);
> -- 
> 2.44.0
>

Reviewed-by: Andrew Jones <ajones at ventanamicro.com>