Overview:
=========
This patch adds support for enabling securityfs for TPM2.0, currently
driver has eventlog support only for TPM1.2.
The patch currently adds support for only binary_bios_measurements.
The structure for TPM2.0 is compliant with TCG Spec for 2.0 family.
Also , the reading of data has the assumption that writer would have
followed TCG Spec and so everything is in little-endian.
The tpm device driver code has been refactored to:
* Identify the TPM version - 1.2 or 2.0
* Calls corresponding compatible seq_ops for iterating over eventlog.
Files Description:
===================
* tpm-chip.c : Adds call to setup bios log for TPM2.0.
* tpm2_of.c : Reads the device tree entries to find the location
and size of event.
* tpm_eventlog_init.c : Provides common initialization functions
between TPM2.0 and TPM1.2 to setup securityfs entries and seq_ops
iterator. The functions has been moved from tpm_eventlog.c into this file.
* tpm_eventlog.c : Provides functions only specific to TPM1.2
version. Common initialization functions are moved to tpm_eventlog_init.c
* tpm2_eventlog.c : Provides functions specific only for TPM2.0
eventlog format.
* tpm2.h : Header file for TPM2.0 structures and functions.
Changelog v2:
=============
* Fixes issues as given in feedback by Jason.
* Adds documentation for device tree.
Nayna Jain (3):
TPM2.0: Refactored eventlog init functions.
TPM2.0: TPM Device Tree Documentation
TPM2.0:Adds securityfs support for TPM2.0 eventlog
Documentation/devicetree/bindings/i2c/i2c-tpm.txt | 31 +++
drivers/char/tpm/Makefile | 8 +-
drivers/char/tpm/tpm-chip.c | 22 +--
drivers/char/tpm/tpm.h | 2 +-
drivers/char/tpm/tpm2.h | 85 ++++++++
drivers/char/tpm/tpm2_eventlog.c | 224 ++++++++++++++++++++++
drivers/char/tpm/tpm_acpi.c | 2 +-
drivers/char/tpm/tpm_eventlog.c | 156 +--------------
drivers/char/tpm/tpm_eventlog.h | 18 +-
drivers/char/tpm/tpm_eventlog_init.c | 174 +++++++++++++++++
drivers/char/tpm/tpm_of.c | 39 ++--
11 files changed, 570 insertions(+), 191 deletions(-)
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-tpm.txt
create mode 100644 drivers/char/tpm/tpm2.h
create mode 100644 drivers/char/tpm/tpm2_eventlog.c
create mode 100644 drivers/char/tpm/tpm_eventlog_init.c
--
2.5.0
------------------------------------------------------------------------------
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