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gerrit.openfyde.cn / chromium.googlesource.com / chromiumos / platform / pinweaver / refs/heads/stabilize-14106.B
commitb736a545db18d6e4f34b7201c177e514f3aeb0aa[log] [tgz]
authorAndrey Pronin <apronin@google.com>Thu Jul 22 11:20:28 2021 +0300
committerLeo Lai <cylai@google.com>Thu Jul 22 08:27:24 2021 +0000
treee5dc5336a26ce3b86ab6dce7e6f3ffb19aa0c342
parent43f74f2e0d1e364c77b343a656c15d9c692ba654 [diff]
tpm_storage: start PW nvmem spaces from 01800007

This CL shifts the start of PinWeaver nvmem space indices by 1,
placing the tree descriptor space at 01800007 instead of 01800006,
to avoid the conflict with bootlockbox space.

BUG=none
TEST=make all

Change-Id: I76bb41ea35a349da1952d4faebc4bf954d68d180
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/pinweaver/+/3045260
Reviewed-by: Andrey Pronin <apronin@chromium.org>
Reviewed-by: Leo Lai <cylai@google.com>
Tested-by: Andrey Pronin <apronin@chromium.org>
Tested-by: Leo Lai <cylai@google.com>
Commit-Queue: Leo Lai <cylai@google.com>
1 file changed
tree: e5dc5336a26ce3b86ab6dce7e6f3ffb19aa0c342
  1. eal/
  2. OWNERS
  3. pinweaver.c
  4. pinweaver.h
  5. pinweaver_eal.h
  6. pinweaver_types.h
  7. README.md
README.md

Common PinWeaver Code

This directory contains reference PinWeaver code that can be used across implementation platforms.

It consists of:

  • PinWeaver reference code:
    • pinweaver.h - PinWeaver embedded API definition
    • pinweaver.c - implementation
    • pinweaver_eal.h - API for Environment Abstraction Layer (EAL) used by PinWeaver
      • note that some types used in this API are platform-specific and are defined in eal/**/pinweaver_eal_types.h
    • pinweaver_types.h - header that is shared by PinWeaver implementation and PinWeaver clients that call it through platform-specific interface.
  • Environment Abstraction Layer (EAL) implementations - in eal/ folder
    • eal/cr50 - implementation for cr50
      • pinweaver_eal_types.h - cr50-specific EAL API types
      • pinweaver_eal.c - cr50 implementation of EAL
    • eal/tpm_storage - implementation for platforms that use TPM as PinWeaver data storage
      • pinweaver_eal_types.h - TPM-storage-specific EAL API types
      • pinweaver_eal_tpm.h - additional EAL functions required by TPM storage
      • pinweaver_eal_linux.c - implementation of non-storage EAL methods for Linux case
      • tpm_storage_stubs.c - empty implementation of storage EAL methods
      • tpm_storage.c - implementation of storage EAL methods on top of TSS
      • mini_trunks/ - mini-TSS (TPM client software stack) used by TPM storage implementation
        • created from trunks TSS used by ChromeOS reduced to the minimal required set of TPM commands and ported from C++ to C
        • relies on pinweaver_eal.h + pinweaver_eal_tpm.h EAL methods
        • TSS API is defined in tss.h + *authorization_delegate.h

A platform implementation that uses TPM storage EAL option needs to implement all EAL methods implemented in pinweaver_eal_linux.c (or use it as-is, if Linux compatible).