From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
To: Ram Pai <linuxram@us.ibm.com>
Cc: mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org,
hbabu@us.ibm.com, mhocko@kernel.org, bauerman@linux.vnet.ibm.com,
Ulrich.Weigand@de.ibm.com, fweimer@redhat.com, msuchanek@suse.de
Subject: Re: [PATCH 1/2] powerpc/core-pkeys: execute-permission on keys are disabled by default
Date: Tue, 03 Jul 2018 00:30:25 -0300 [thread overview]
Message-ID: <87y3etknce.fsf@morokweng.localdomain> (raw)
In-Reply-To: <1529979376-7292-3-git-send-email-linuxram@us.ibm.com>
Ram Pai <linuxram@us.ibm.com> writes:
> Only when the key is allocated, its permission are enabled.
>
> Signed-off-by: Ram Pai <linuxram@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@linux.ibm.com>
--
Thiago Jung Bauermann
IBM Linux Technology Center
next prev parent reply other threads:[~2018-07-03 3:30 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-26 2:16 [PATCH 1/2] powerpc/pkeys: preallocate execute_only key only if the key is available Ram Pai
2018-06-26 2:16 ` [PATCH 2/2] powerpc/pkeys: key allocation/deallocation must not change pkey registers Ram Pai
2018-07-03 1:35 ` Thiago Jung Bauermann
2018-06-26 2:16 ` [PATCH 1/2] powerpc/core-pkeys: execute-permission on keys are disabled by default Ram Pai
2018-07-03 3:30 ` Thiago Jung Bauermann [this message]
2018-06-26 2:16 ` [PATCH 2/2] powerpc/ptrace-pkeys: " Ram Pai
2018-07-03 3:30 ` Thiago Jung Bauermann
2018-06-29 2:56 ` [PATCH 1/2] powerpc/pkeys: preallocate execute_only key only if the key is available Thiago Jung Bauermann
2018-06-29 6:07 ` Gabriel Paubert
2018-06-30 0:58 ` Thiago Jung Bauermann
2018-06-30 1:40 ` Ram Pai
2018-06-30 16:56 ` Gabriel Paubert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87y3etknce.fsf@morokweng.localdomain \
--to=bauerman@linux.ibm.com \
--cc=Ulrich.Weigand@de.ibm.com \
--cc=bauerman@linux.vnet.ibm.com \
--cc=fweimer@redhat.com \
--cc=hbabu@us.ibm.com \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=linuxram@us.ibm.com \
--cc=mhocko@kernel.org \
--cc=mpe@ellerman.id.au \
--cc=msuchanek@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox