On Sun, 2018-11-11 at 18:55 +0100, Michael Niewöhner wrote: > Hi all, > > Nuvoton NCPT650 does not work in TPM 2.0 mode with tpm_tis / tpm_i2c_nuvoton > while it works in TPM 1.2 mode (I can reflash it via UEFI setup). > Kernel version is 4.19.1 > > Kernel config: > > $ cat .config | egrep 'TCG|TPM|CRB|_TIS' > CONFIG_TCG_TPM=y > CONFIG_HW_RANDOM_TPM=y > CONFIG_TCG_TIS_CORE=y > CONFIG_TCG_TIS=y > CONFIG_TCG_TIS_SPI=y > # CONFIG_TCG_TIS_I2C_ATMEL is not set > # CONFIG_TCG_TIS_I2C_INFINEON is not set > CONFIG_TCG_TIS_I2C_NUVOTON=y > # CONFIG_TCG_NSC is not set > # CONFIG_TCG_ATMEL is not set > # CONFIG_TCG_INFINEON is not set > CONFIG_TCG_CRB=y > # CONFIG_TCG_VTPM_PROXY is not set > # CONFIG_TCG_TIS_ST33ZP24_I2C is not set > # CONFIG_TCG_TIS_ST33ZP24_SPI is not set > > > TPM 1.2 mode dmesg: > > $ dmesg | egrep -i tis\|tpm\|crb > [ 3.210040] tpm_tis 00:0a: 1.2 TPM (device-id 0xFE, rev-id 2) > > > TPM 2.0 mode dmesg: > > $ dmesg | egrep -i tis\|tpm\|crb > [ 0.000000] efi: ACPI > 2.0=0x9e457000 ACPI=0x9e457000 SMBIOS=0x9ec44000 SMBIOS > 3.0=0x9ec43000 TPMEventLog=0x9711f018 > [ 0.003517] ACPI: TPM2 0x000000009E490ED8 000034 (v03 LENOVO TC- > S06 00001300 AMI 00000000) > [ 4.071550] ima: No TPM chip found, activating TPM-bypass! It's possible that eventually the TPM is initialized, but not in time for IMA. Could you you check to see if the TPM is responding to userspace commands after boot? Mimi
