On Wed, 5 Jun 2024, Babu Moger wrote:
> The selftest noncont_cat_run_test fails on AMD with the warnings. Reason
> is, AMD supports non contiguous CBM masks but does not report it via CPUID.
>
> Update noncont_cat_run_test to check for the vendor when verifying CPUID.
>
> Fixes: ae638551ab64 ("selftests/resctrl: Add non-contiguous CBMs CAT test")
> Signed-off-by: Babu Moger <[email protected]>
> ---
> This was part of the series
> https://lore.kernel.org/lkml/[email protected]/
> Sending this as a separate fix per review comments.
> ---
> tools/testing/selftests/resctrl/cat_test.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/resctrl/cat_test.c
> b/tools/testing/selftests/resctrl/cat_test.c
> index d4dffc934bc3..b2988888786e 100644
> --- a/tools/testing/selftests/resctrl/cat_test.c
> +++ b/tools/testing/selftests/resctrl/cat_test.c
> @@ -308,7 +308,7 @@ static int noncont_cat_run_test(const struct resctrl_test
> *test,
> else
> return -EINVAL;
>
> - if (sparse_masks != ((ecx >> 3) & 1)) {
> + if ((get_vendor() == ARCH_INTEL) && sparse_masks != ((ecx >> 3) & 1)) {
> ksft_print_msg("CPUID output doesn't match 'sparse_masks' file
> content!\n");
> return 1;
> }
>
Reviewed-by: Ilpo Järvinen <[email protected]>
--
i.
