Re: [PATCH v2 3/3] tpm: parse TPM event logs based on EFI table

From: Thiebaud Weksteen
Date: Tue Sep 12 2017 - 04:49:34 EST


On Mon, Sep 11, 2017 at 10:47:50AM -0600, Jason Gunthorpe wrote:
> On Mon, Sep 11, 2017 at 12:00:22PM +0200, Thiebaud Weksteen wrote:
>
> > chip->bin_log_seqops.chip = chip;
> > - if (chip->flags & TPM_CHIP_FLAG_TPM2)
> > +
> > + if (log_version == EFI_TCG2_EVENT_LOG_FORMAT_TCG_2 ||
> > + (!log_version && (chip->flags & TPM_CHIP_FLAG_TPM2)))
> > chip->bin_log_seqops.seqops =
> > &tpm2_binary_b_measurements_seqops;
>
> Lets have all the read_log_* versions return the postitive log_version
> and get rid of the chip->flags check here.
>
> ie Doesn't ACPI always return the TPM 1 version?

That is my understanding. Ashley, Nayna, could you confirm the format
version expected by tpm_of? Could it be both?

>
> Jason