Re: [PATCH 2/2] tpm: enhance TPM 2.0 PCR extend to support multiple banks

[Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>]

On Sat, Oct 08, 2016 at 10:15:57PM -0400, Nayna Jain wrote:
> Like TPM 1.2, the current device driver for TPM 2.0 supports
> extending only to the SHA1 PCR bank. But the TPM 2.0 supports multiple
> PCR banks and the specification recommends extending to all active PCR
> banks, this patch enhances the existing device driver support for
> TPM 2.0 extend function and its in-kernel interface to extend to all
> active PCR banks.
> 
> The existing in-kernel interface expects only a SHA1 digest.
> Hence, to extend all active PCR banks with differing digest sizes
> for TPM 2.0, the SHA1 digest is padded with trailing 0's as needed.
> 
> Signed-off-by: Nayna Jain <nayna-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
> ---
>  drivers/char/tpm/tpm-interface.c | 17 ++++++++--
>  drivers/char/tpm/tpm2-cmd.c      | 71 ++++++++++++++++++++++++++--------------
>  drivers/char/tpm/tpm2.h          | 18 ++++++++++
>  3 files changed, 79 insertions(+), 27 deletions(-)

I'll ignore this commit because:

1. This is not used anywhere.
2. Does not apply to upstream.

/Jarkko

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