On Sat, Jan 29 2022 at 09:36, Chang S. Bae wrote:
> Update the arch_prctl test to check the permission bitmap whether the
> requested feature is added as expected or not.
>
> Every non-dynamic feature that is enabled is permitted already for use.
> TILECFG is not dynamic feature. Ensure the bit is always on from
> ARCH_GET_XCOMP_PERM.
Running it on a machine which does not have AMX results in:
amx_64: [FAIL] xstate cpuid: invalid tile data size/offset: 0/0: Success
It's not a failure, really. Selftests are supposed to run on all
machines and the proper thing to do if a hardware feature is not
available is to SKIP the test and return 0.
Thanks,
tglx
