[PATCH 1/2] powerpc/core-pkeys: execute-permission on keys are disabled by default

[Thiago Jung Bauermann]

Ram Pai <linuxram at us.ibm.com> writes:

> Only when the key is allocated, its permission are enabled.
>
> Signed-off-by: Ram Pai <linuxram at us.ibm.com>
> ---
>  tools/testing/selftests/powerpc/ptrace/core-pkey.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/tools/testing/selftests/powerpc/ptrace/core-pkey.c b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
> index 36bc312..b353d86 100644
> --- a/tools/testing/selftests/powerpc/ptrace/core-pkey.c
> +++ b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
> @@ -140,6 +140,10 @@ static int child(struct shared_info *info)
>
>  	if (disable_execute)
>  		info->iamr |= 1ul << pkeyshift(pkey1);
> +	else
> +		info->iamr &= ~(1ul << pkeyshift(pkey1));
> +	info->iamr &= ~(1ul << pkeyshift(pkey2) | 1ul << pkeyshift(pkey3));
> +
>
>  	info->uamor |= 3ul << pkeyshift(pkey1) | 3ul << pkeyshift(pkey2);

Reviewed-by: Thiago Jung Bauermann <bauerman at linux.ibm.com>

-- 
Thiago Jung Bauermann
IBM Linux Technology Center