All of lore.kernel.org
 help / color / mirror / Atom feed
From: Shuah Khan <skhan@linuxfoundation.org>
To: Jarkko Sakkinen <jarkko@kernel.org>
Cc: shuah@kernel.org, linux-kselftest@vger.kernel.org,
	linux-sgx@vger.kernel.org,
	Reinette Chatre <reinette.chatre@intel.com>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	linux-kernel@vger.kernel.org,
	Shuah Khan <skhan@linuxfoundation.org>
Subject: Re: [PATCH v8 5/5] selftests/sgx: Refine the test enclave to have storage
Date: Tue, 15 Jun 2021 15:55:25 -0600	[thread overview]
Message-ID: <adcc7797-db49-4dbc-ef87-5c12ad1d6a44@linuxfoundation.org> (raw)
In-Reply-To: <20210615131553.5y3jssldqc3sv2ge@kernel.org>

On 6/15/21 7:15 AM, Jarkko Sakkinen wrote:
> On Tue, Jun 15, 2021 at 04:14:02PM +0300, Jarkko Sakkinen wrote:
>> On Mon, Jun 14, 2021 at 02:16:15PM -0600, Shuah Khan wrote:
>>> On 6/10/21 2:30 AM, Jarkko Sakkinen wrote:
>>>> Extend the enclave to have two operations: ENCL_OP_PUT and ENCL_OP_GET.
>>>> ENCL_OP_PUT stores value inside the enclave address space and
>>>> ENCL_OP_GET reads it. The internal buffer can be later extended to be
>>>> variable size, and allow reclaimer tests.
>>>>
>>>> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
>>>> ---
>>>>    tools/testing/selftests/sgx/defines.h     | 10 ++++
>>>>    tools/testing/selftests/sgx/main.c        | 57 ++++++++++++++++++-----
>>>>    tools/testing/selftests/sgx/test_encl.c   | 19 +++++++-
>>>>    tools/testing/selftests/sgx/test_encl.lds |  3 +-
>>>>    4 files changed, 74 insertions(+), 15 deletions(-)
>>>>
>>>
>>> Test output before applying the series:
>>>
>>> TAP version 13
>>> 1..1
>>> # selftests: sgx: test_sgx
>>> # Unable to open /dev/sgx_enclave: No such file or directory
>>> # 1..0 # SKIP cannot load enclaves
>>> ok 1 selftests: sgx: test_sgx # SKIP
>>>
>>> Test output after applying second patch
>>>
>>> selftests/sgx: Migrate to kselftest harness
>>>
>>> Output changes to the following. It doesn't look like the second
>>> patch adds any new tests. What is the point in running the tests
>>> that fail if /dev/sgx_enclave is missing.
>>>
>>> Unfortunately this series doesn't have a cover letter that explains
>>> what this series is doing. I don't like the fact that the test
>>> output and behavior changes when migrating the test to kselftest
>>> harness. Shouldn't the output stay the same as in skip the tests
>>> if /dev/sgx_enclave fails.
>>
>> I get what you are saying but actually I do not know how with
>> fixtures I can skip "the rest" when FIXTURE_SETUP() fails.
>>
>> The reason for the output below is that with fixtures for all
>> tests enclave is initialized for each test case. And it kind of
>> makes sense because all tests start from the clean expected
>> state.
>>
>> I don't how to do that with zero change in the output.
>>

Yeah. I took a look at the FIXTURE. Doesn't look like it is possible.

>> The reason to do this change is to make it easy to add more tests,
>> and return correct status codes to the framework.
> 
> To add: everything I did I based purely to the existing kernel
> documentation, following the examples on how to use fixture.
> 

I will pick these up and will add a note to the last commit that
output changes, so test rings that run kselftest are aware of the
change.

thanks,
-- Shuah

  reply	other threads:[~2021-06-15 21:55 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-10  8:30 [PATCH v8 1/5] selftests/sgx: Rename 'eenter' and 'sgx_call_vdso' Jarkko Sakkinen
2021-06-10  8:30 ` [PATCH v8 2/5] selftests/sgx: Migrate to kselftest harness Jarkko Sakkinen
2021-06-10  8:30 ` [PATCH v8 3/5] selftests/sgx: Dump enclave memory map Jarkko Sakkinen
2021-06-11 22:45   ` Shuah Khan
2021-06-12  0:34     ` Dave Hansen
2021-06-12  4:27     ` Jarkko Sakkinen
2021-06-14 16:45       ` Shuah Khan
2021-06-15 13:07         ` Jarkko Sakkinen
2021-06-10  8:30 ` [PATCH v8 4/5] selftests/sgx: Add EXPECT_EEXIT() macro Jarkko Sakkinen
2021-06-10  8:30 ` [PATCH v8 5/5] selftests/sgx: Refine the test enclave to have storage Jarkko Sakkinen
2021-06-14 20:16   ` Shuah Khan
2021-06-15 13:13     ` Jarkko Sakkinen
2021-06-15 13:15       ` Jarkko Sakkinen
2021-06-15 21:55         ` Shuah Khan [this message]
2021-06-18  9:07           ` Jarkko Sakkinen
2021-06-10 15:45 ` [PATCH v8 1/5] selftests/sgx: Rename 'eenter' and 'sgx_call_vdso' Dave Hansen
2021-06-11 17:35   ` Shuah Khan
2021-06-11 22:47     ` Shuah Khan

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=adcc7797-db49-4dbc-ef87-5c12ad1d6a44@linuxfoundation.org \
    --to=skhan@linuxfoundation.org \
    --cc=dave.hansen@linux.intel.com \
    --cc=jarkko@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-kselftest@vger.kernel.org \
    --cc=linux-sgx@vger.kernel.org \
    --cc=reinette.chatre@intel.com \
    --cc=shuah@kernel.org \
    --subject='Re: [PATCH v8 5/5] selftests/sgx: Refine the test enclave to have storage' \
    /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

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.