Re: [PATCH RESEND v4 1/1] tpm: add sysfs exports for all banks of PCR registers

On Sun, Nov 29, 2020 at 02:30:22PM -0800, James Bottomley wrote:

Create sysfs per hash groups with 24 PCR files in them one group,
named pcr-<hash>, for each agile hash of the TPM.  The files are
plugged in to a PCR read function which is TPM version agnostic, so
this works also for TPM 1.2 but the hash is only sha1 in that case.

Note: the macros used to create the hashes emit spurious checkpatch
warnings.  Do not try to "fix" them as checkpatch recommends, otherwise
they'll break.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reviewed-by: Jerry Snitselaar <redacted>
Tested-by: Thiago Jung Bauermann <redacted>

---

v2: fix TPM 1.2 legacy links failure
v3: fix warn on and add note to tpm_algorithms
v4: reword commit and add tested-by
---
 drivers/char/tpm/tpm-sysfs.c | 178 +++++++++++++++++++++++++++++++++++
 include/linux/tpm.h          |   9 +-
 2 files changed, 186 insertions(+), 1 deletion(-)

No Documentation/ABI/ entry for new sysfs files?

:(