Hi Mudit,

Thanks for checking.   Is the build you tested using the same mix of SFN and IPC as I was? 

Regards,
Brian

From: Mudit Sharma <mudit.sharma@arm.com>
Sent: Thursday, May 8, 2025 5:21 AM
To: Quach, Brian <brian@ti.com>; tf-m@lists.trustedfirmware.org
Cc: Antonio.DeAngelis@arm.com
Subject: [EXTERNAL] Re: [TF-M] Attestation calls to PSA Crypto

Hi Brian, We built secure world TF-M test for AN521 platform: ``` cmake -S spe -B build_spe -DTFM_PLATFORM=arm/mps2/an521 \ -DCONFIG_TFM_SOURCE_PATH="$TFM_SOURCE_DIR" \ -DCMAKE_BUILD_TYPE=Debug \ -DTEST_S=ON -DTEST_NS=OFF ``` We ran this test

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Hi Brian,
 
We built secure world TF-M test for AN521 platform:
 
```
cmake -S spe -B build_spe -DTFM_PLATFORM=arm/mps2/an521 \
       -DCONFIG_TFM_SOURCE_PATH="$TFM_SOURCE_DIR" \
       -DCMAKE_BUILD_TYPE=Debug \
       -DTEST_S=ON -DTEST_NS=OFF
```
 
We ran this test on a FVP model and stepped through 
`tfm_attest_test_1001`. Please find attached a screenshot of the call stack.
 
Function in `attest_core` (in the Attestation partition) invokes 
function in the `tfm_crypto_api`. This request is routed by the Secure 
Partition Manager (SPM) into the Crypto partition via `psa_call()`.
 
 
On 5/6/25 00:33, Quach, Brian wrote:
> 
> Is my configuration valid?   How should it work?
> 
Any time you call a function across partitions, regardless of isolation 
level, the SPM forwards it to the target partition using `psa_call()`
> 
 
Best regards,
Mudit Sharma