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Hi all,
I've received very little feedback on version 2 of the proposal, which
hints that we are reaching an agreement. Thus, I plan to finalize the
proposal this week. This can then become part of our development flow
for all trustedfirmware.org projects.
Thanks again for all the inputs!
Regards,
Sandrine Bailleux
Hi all,
I uploaded a patch (https://review.trustedfirmware.org/c/trusted-firmware-m/+/4009) to simplify/improve the entry points of secure functions in Library model.
In current Library model implementation, each secure function includes the same inline entry point tfm_core_partition_request(). Actually, only the NS client check is required to be inline. The duplicated entry points cost much code size.
Thus this patch extracts NS client check and make it as a simple inline function tfm_core_is_ns_client(). tfm_core_partition_request() becomes a normal function called by each secure function.
Some quantitative results of code size optimization (about 3KB) are shown below:
Profile Small (ConfigDefaultProfileS) is based on https://review.trustedfirmware.org/q/topic:%22symmetric-attest%22+(status:o…
ConfigDefault + Armclang 6.10 + Release + AN521
Code
RO-data
RW-data
ZI-data
Current impl
129778
8994
272
50108
Improved
126294
8994
272
50108
ConfigDefaultProfileS + Armclang 6.10 + Release + AN521
Code
RO-data
RW-data
ZI-data
Current impl
55886
3274
200
31664
Improved
52930
3274
200
31664
Best regards,
Hu Ziji
Hi Raymond,
There are some changes required for PSoC64 target with the recent changes from Jamie on persistent key support for test_c050 (api-tests/dev_apis/crypto/test_c050).
I will be pushing changes to GitHub today.
You could try them and let us know if you are still facing problem.
Regards,
Vinay
________________________________
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> on behalf of David Hu via TF-M <tf-m(a)lists.trustedfirmware.org>
Sent: Monday, April 27, 2020 8:03 AM
To: Raymond Ngun <Raymond.Ngun(a)cypress.com>; Jamie Fox <Jamie.Fox(a)arm.com>
Cc: tf-m(a)lists.trustedfirmware.org <tf-m(a)lists.trustedfirmware.org>
Subject: Re: [TF-M] PSA Crypto failure with addition of persistent keys
Hi Raymond,
Sorry for the trouble. Sorry that I cannot find a Crypto test case with index 250.
Could you please share more details and error logs of this test case?
Best regards,
Hu Ziji
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Raymond Ngun via TF-M
Sent: Monday, April 27, 2020 10:26 AM
To: tf-m(a)lists.trustedfirmware.org; Jamie Fox <Jamie.Fox(a)arm.com>
Subject: [TF-M] PSA Crypto failure with addition of persistent keys
Hi Jamie,
With the addition of persistent key support, we have seen the PSA Crypto test hang at test 250. Although we originally saw this with PSoC64, I was able to reproduce this problem on a Musca-B1. Can you please have a look please? Note that the behavior is not always the same. I have 2x Musca-B1 boards and they both failed the first time I ran the PSA Crypto test suite. However, they both did not freeze on a 2nd run. Possibly a stack issue such that the behavior is dependent on what is in stack.
Thank you,
Ray
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Hello,
The agenda of the call is:
1. introduction to a mechanism efficiency improvement by reducing 'psa_connect'/'psa_close'calls.
2. Mailing List topics discussion (optional)
3. AOB
Best regards,
Anton Komlev
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Ken Liu via TF-M
Sent: 28 April 2020 07:17
To: tf-m(a)lists.trustedfirmware.org
Cc: nd <nd(a)arm.com>
Subject: Re: [TF-M] TF-M Technical Forum call - April 30
Hi Anton,
I would like to give a brief introduction for a mechanism which would improve the coding efficiency and performance for RoT Service API by avoiding 'psa_connect'/'psa_close'.
BR.
/Ken
From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Anton Komlev via TF-M
Sent: Thursday, April 23, 2020 3:29 PM
To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org>
Cc: nd <nd(a)arm.com<mailto:nd@arm.com>>
Subject: [TF-M] TF-M Technical Forum call - April 30
Hello,
The next Technical Forum is planned on Thursday, April 30 at 7:00-8:00 UTC.
Please reply on this email with your proposals for agenda topics.
Best regards,
Anton Komlev