From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-x242.google.com (mail-qk0-x242.google.com [IPv6:2607:f8b0:400d:c09::242]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 41VMC24M3SzF3Hk for ; Tue, 17 Jul 2018 23:51:42 +1000 (AEST) Received: by mail-qk0-x242.google.com with SMTP id c192-v6so513023qkg.12 for ; Tue, 17 Jul 2018 06:51:42 -0700 (PDT) Sender: Ram Pai From: Ram Pai To: mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, hbabu@us.ibm.com, mhocko@kernel.org, bauerman@linux.vnet.ibm.com, linuxram@us.ibm.com, Ulrich.Weigand@de.ibm.com, fweimer@redhat.com, msuchanek@suse.de Subject: [PATCH v3 8/9] powerpc/core-pkeys: execute-permission on keys are disabled by default Date: Tue, 17 Jul 2018 06:51:09 -0700 Message-Id: <1531835470-32691-9-git-send-email-linuxram@us.ibm.com> In-Reply-To: <1531835470-32691-1-git-send-email-linuxram@us.ibm.com> References: <1531835470-32691-1-git-send-email-linuxram@us.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Only when the key is allocated, its permission are enabled. Reviewed-by: Thiago Jung Bauermann Signed-off-by: Ram Pai --- 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); -- 1.7.1