Overview ======== Start preparing TPM driver for Trenchboot by decoupling tpm_buf from driver and memory allocation.
Backlog (of stuff that will end up to a follow-up patch sets): 1. Static flat duration table for TPM 1.2. Such feature already landed in v6.17 for TPM 2.0. We probably can figure out some sane roof values for the legacy standard, right? This allows to share more code "via data". 2. Not a blocker for sending subsequent versions of Trenchboot patch set but we could look at slicing tpm_tis code at some point of future. It could be even that redundant parts could be "merged" after the feature lands but this is neither a promise (depends on how things look overall). This patch set does not do a lot heavy-lifting but is beefed enough that it is better not fatten it up too much anymore. Sane buffering is a great starting point. v7: - Fixed reported issues. v6: - Fixed a memory leak that I found trom trusted keys. v5: - Order sobs correctly. - Fixed a minor glitch in 9/9. v4: - PCR patch has been removed because it does not fly without Trenchboot context. v3: - I think 6.19 is a better goal for this and thus expanded the series to be a generic Trenchboot enablers series. This version also consolidates my two separate ongoing series. v2: - While including fixes from v1, this patch set has a refocus in order to do minimal changes to make code base more compatible Trenchboot. Jarkko Sakkinen (11): tpm: Cap the number of PCR banks tpm: Use -EPERM as fallback error code in tpm_ret_to_err KEYS: trusted: remove redundant instance of tpm2_hash_map KEYS: trusted: Fix memory leak in tpm2_load() KEYS: trusted: Use tpm_ret_to_err() in trusted_tpm2 tpm2-sessions: Remove 'attributes' from tpm_buf_append_auth tpm2-sessions: Unmask tpm_buf_append_hmac_session() KEYS: trusted: Open code tpm2_buf_append() tpm-buf: unify TPM_BUF_BOUNDARY_ERROR and TPM_BUF_OVERFLOW tpm-buf: Remove chip parameter from tpm_buf_append_handle tpm-buf: Enable managed and stack allocations. drivers/char/tpm/tpm-buf.c | 143 ++++++---- drivers/char/tpm/tpm-chip.c | 13 +- drivers/char/tpm/tpm-sysfs.c | 21 +- drivers/char/tpm/tpm.h | 2 - drivers/char/tpm/tpm1-cmd.c | 185 +++++------- drivers/char/tpm/tpm2-cmd.c | 332 +++++++++++----------- drivers/char/tpm/tpm2-sessions.c | 129 ++++----- drivers/char/tpm/tpm2-space.c | 44 ++- drivers/char/tpm/tpm_vtpm_proxy.c | 30 +- include/linux/tpm.h | 74 ++--- security/keys/trusted-keys/trusted_tpm1.c | 36 +-- security/keys/trusted-keys/trusted_tpm2.c | 291 ++++++++----------- 12 files changed, 584 insertions(+), 716 deletions(-) -- 2.52.0
