diff options
author | James Bottomley <James.Bottomley@HansenPartnership.com> | 2021-01-14 02:26:34 +0300 |
---|---|---|
committer | Jarkko Sakkinen <jarkko@kernel.org> | 2021-02-16 11:40:27 +0300 |
commit | 52d0848e1d60e8884eca6a949300f8e5be094ddf (patch) | |
tree | 7e8a188f99d91231bf910f4e9a02933252c48cac | |
parent | aab73d9524026caa14aab17fa9b750a6539fd49f (diff) | |
download | linux-52d0848e1d60e8884eca6a949300f8e5be094ddf.tar.xz |
ABI: add sysfs description for tpm exports of PCR registers
Adds the ABI entries for the new
/sys/class/tpm/tpm<n>/pcr-<hash>/<m>
files which are added to export the PCR hash values on a one value per
file basis.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
-rw-r--r-- | Documentation/ABI/stable/sysfs-class-tpm | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-class-tpm b/Documentation/ABI/stable/sysfs-class-tpm index 91ca63ec7581..d897ecb9615f 100644 --- a/Documentation/ABI/stable/sysfs-class-tpm +++ b/Documentation/ABI/stable/sysfs-class-tpm @@ -194,3 +194,17 @@ Description: The "tpm_version_major" property shows the TCG spec major version Example output:: 2 + +What: /sys/class/tpm/tpmX/pcr-H/N +Date: March 2021 +KernelVersion: 5.12 +Contact: linux-integrity@vger.kernel.org +Description: produces output in compact hex representation for PCR + number N from hash bank H. N is the numeric value of + the PCR number and H is the crypto string + representation of the hash + + Example output:: + + cat /sys/class/tpm/tpm0/pcr-sha256/7 + 2ED93F199692DC6788EFA6A1FE74514AB9760B2A6CEEAEF6C808C13E4ABB0D42 |