Hi Chris,
Conditional dependency is not supported by FF-M.
So I think changing the check_config.cmake will clearly tell the users the dependencies.
Best Regards,
Kevin
From: Chris.Brand--- via TF-M <tf-m@lists.trustedfirmware.org>
Sent: Saturday, June 25, 2022 12:56 AM
To: tf-m@lists.trustedfirmware.org
Subject: [TF-M] PS partition dependencies
I’m experimenting with a build with the SFN backend, and I’ve hit an error.
cmake -S . -B build_musca_sse200_GNUARM_Release -DTFM_PLATFORM=arm/musca_b1/sse_200 -DCONFIG_TFM_SPM_BACKEND=SFN -DTFM_PARTITION_PLATFORM=OFF -DTFM_PARTITION_FIRMWARE_UPDATE=OFF
-DPS_ROLLBACK_PROTECTION=OFF
cmake --build build_musca_sse200_GNUARM_Release
results in
…/build_musca_sse200_GNUARM_Release/generated/secure_fw/partitions/protected_storage/auto_generated/load_info_tfm_protected_storage.c:85:9: error: 'TFM_SP_PLATFORM_NV_COUNTER_SID'
undeclared here (not in a function); did you mean 'TFM_SP_NON_SECURE_ID'?
TFM_SP_PLATFORM_NV_COUNTER_SID,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
TFM_SP_NON_SECURE_ID
Config/check_config.cmake line 93 is
tfm_invalid_config((TFM_PARTITION_PROTECTED_STORAGE AND PS_ROLLBACK_PROTECTION) AND NOT TFM_PARTITION_PLATFORM)
but
secure_fw/partitions/protected_storage/tfm_protected_storage.yaml lists
TFM_SP_PLATFORM_NV_COUNTER as a dependency unconditionally.
The easy fix is to change check_config.cmake to have the PS partition unconditionally require the platform partition, but it seems that the intent is that it should still be possible to enable PS without rollback protection.
Chris Brand
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