Re: [Tee-dev] [PATCH v8 0/2] fTPM: firmware TPM running in TEE
From: Rouven Czerwinski <hidden>
Date: 2019-08-07 13:21:49
Also in:
linux-integrity, lkml
Hi, I spent some time with the fTPM module and TA on a Nitrogen6X with the latest OP-TEE master. After stumbling through the "tee_supplicant no persistent storage" problem, my module now issues the following error message on module load: [ 34.633252] tpm tpm0: ftpm_tee_tpm_op_send: SUBMIT_COMMAND invoke error: 0xffff0006 [ 34.641035] tpm tpm0: tpm_try_transmit: send(): error -65530 [ 34.647008] tpm tpm0: ftpm_tee_tpm_op_send: SUBMIT_COMMAND invoke error: 0xffff0006 [ 34.654788] tpm tpm0: tpm_try_transmit: send(): error -65530 [ 34.660480] ftpm-tee ftpm: ftpm_tee_probe: tpm_chip_register failed with rc=-65530 [ 34.678087] ftpm-tee: probe of ftpm failed with error -65530 To me the TEE_ERROR_BAD_PARAMETERS indicates some ABI issue between the TA and the kernel module. Note that I built the TA from https://github.com/microsoft/MSRSec.git with commit 6bb57db632c424f87cbaf7ec6f9c89be7682b3c0. Maybe this is not the correct version, I had some problems building the module from the repository mentioned in the Patches Regards, Rouven Czerwinski -- Pengutronix e.K. | | Industrial Linux Solutions | https://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |