Thanks Kathleen.

Hi All,

The change related to migrating Hafnium CI to using the standard FFA_CONSOLE_LOG [1] is merged.

Kathleen is now preparing changes to deprecate the former proprietary HF_DEBUG_LOG ABI in Hafnium [2] and TF-a-tests.

As this can lead to breaking downstream platforms, please provide feedback if you disagree with the approach.

Thanks, Olivier.

________________________________ From: Kathleen Capella via Hafnium hafnium@lists.trustedfirmware.org Sent: 23 February 2023 20:51 To: hafnium@lists.trustedfirmware.org hafnium@lists.trustedfirmware.org Subject: [Hafnium] Removing support for HF_DEBUG_LOG

Hi,

With the introduction of FFA_CONSOLE_LOG ABI [1], we are intending to replace and remove support for HF_DEBUG_LOG.

This proposal is in review in the following stages: 1) Remove the dependency of hftest VMs on HF_DEBUG_LOG and move to FFA_CONSOLE_LOG [2] 2) Remove the support for HF_DEBUG_LOG (i.e. api_debug_log) from hafnium project. [3]

The adoption of FFA_CONSOLE_LOG will allow us to make use of its ability to log multiple characters at a time, as opposed to HF_DEBUG_LOG which writes one character at a time. This improvement will be enabled in a future patch. Also, should [3] be adopted, we will make accompanying changes to tf-a-tests Cactus-based tests.

We want to know if there are any concerns about removing support for HF_DEBUG_LOG at this time as we realize other downstream SPs may rely on its support.

Thank you, Kathleen Capella

[1] feat(console_log): add FFA_CONSOLE_LOG ABI https://review.trustedfirmware.org/c/hafnium/hafnium/+/15334 [2] feat(ffa_console_log): replace hf_debug_log https://review.trustedfirmware.org/c/hafnium/hafnium/+/19513 [3] refactor: remove support for HF_DEBUG_LOG https://review.trustedfirmware.org/c/hafnium/hafnium/+/19681 -- Hafnium mailing list -- hafnium@lists.trustedfirmware.org To unsubscribe send an email to hafnium-leave@lists.trustedfirmware.org

Hello Olivier,

Let me provide feedback for NVIDIA platforms by early next week.

Thanks.

-----Original Message----- From: Olivier Deprez via Hafnium hafnium@lists.trustedfirmware.org Sent: Tuesday, March 14, 2023 12:47 PM To: hafnium@lists.trustedfirmware.org Subject: [Hafnium] Re: Removing support for HF_DEBUG_LOG

External email: Use caution opening links or attachments

(*) corrections below

________________________________ From: Olivier Deprez Olivier.Deprez@arm.com Sent: 14 March 2023 13:45 To: hafnium@lists.trustedfirmware.org hafnium@lists.trustedfirmware.org; Kathleen Capella Kathleen.Capella@arm.com Subject: Re: [Hafnium] Removing support for HF_DEBUG_LOG

Thanks Kathleen.

Hi All,

The change related to migrating Hafnium CI to using the standard FFA_CONSOLE_LOG [2] (*) is merged.

Kathleen is now preparing changes to deprecate the former proprietary HF_DEBUG_LOG ABI in Hafnium [3] (*) and TF-a-tests.

As this can lead to breaking downstream platforms, please provide feedback if you disagree with the approach.

Thanks, Olivier.

________________________________ From: Kathleen Capella via Hafnium hafnium@lists.trustedfirmware.org Sent: 23 February 2023 20:51 To: hafnium@lists.trustedfirmware.org hafnium@lists.trustedfirmware.org Subject: [Hafnium] Removing support for HF_DEBUG_LOG

Hi,

With the introduction of FFA_CONSOLE_LOG ABI [1], we are intending to replace and remove support for HF_DEBUG_LOG.

This proposal is in review in the following stages: 1) Remove the dependency of hftest VMs on HF_DEBUG_LOG and move to FFA_CONSOLE_LOG [2] 2) Remove the support for HF_DEBUG_LOG (i.e. api_debug_log) from hafnium project. [3]

The adoption of FFA_CONSOLE_LOG will allow us to make use of its ability to log multiple characters at a time, as opposed to HF_DEBUG_LOG which writes one character at a time. This improvement will be enabled in a future patch. Also, should [3] be adopted, we will make accompanying changes to tf-a-tests Cactus-based tests.

We want to know if there are any concerns about removing support for HF_DEBUG_LOG at this time as we realize other downstream SPs may rely on its support.

Thank you, Kathleen Capella

[1] feat(console_log): add FFA_CONSOLE_LOG ABI https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Freview.tru... [2] feat(ffa_console_log): replace hf_debug_log https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Freview.tru... [3] refactor: remove support for HF_DEBUG_LOG https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Freview.tru... -- Hafnium mailing list -- hafnium@lists.trustedfirmware.org To unsubscribe send an email to hafnium-leave@lists.trustedfirmware.org -- Hafnium mailing list -- hafnium@lists.trustedfirmware.org To unsubscribe send an email to hafnium-leave@lists.trustedfirmware.org