On Tue, 2018-03-06 at 23:26 -0600, Jiandi An wrote:
> TPM_CRB driver is the TPM support for ARM64.  If it
> is built as module, TPM chip is registered after IMA
> init.  tpm_pcr_read() in IMA driver would fail and
> display the following message even though eventually
> there is TPM chip on the system:
> 
> ima: No TPM chip found, activating TPM-bypass! (rc=-19)
> 
> Fix IMA Kconfig to select TPM_CRB so TPM_CRB driver is
> built in kernel and initializes before IMA driver.
> 
> Signed-off-by: Jiandi An <anjia...@codeaurora.org>

Thanks, this patch has been applied.

Mimi

> ---
>  security/integrity/ima/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
> index 35ef693..6a8f677 100644
> --- a/security/integrity/ima/Kconfig
> +++ b/security/integrity/ima/Kconfig
> @@ -10,6 +10,7 @@ config IMA
>       select CRYPTO_HASH_INFO
>       select TCG_TPM if HAS_IOMEM && !UML
>       select TCG_TIS if TCG_TPM && X86
> +     select TCG_CRB if TCG_TPM && ACPI
>       select TCG_IBMVTPM if TCG_TPM && PPC_PSERIES
>       help
>         The Trusted Computing Group(TCG) runtime Integrity

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