[PATCH v3 0/6] tpm: Support boot measurements

Eddie James
2023-01-12T16:16:41Z

This series adds support for measuring the boot images more generically
than the existing EFI support. Several EFI functions have been moved to
the TPM layer. The series includes optional measurement from the bootm
command.
A new test case has been added for the bootm measurement to test the new
path, and the sandbox TPM2 driver has been updated to support this use
case.

Changes since v2:
- Add documentation.
- Changed reserved memory address to the top of the RAM for sandbox dts.
- Add measure state to booti and bootz.
- Skip measurement for EFI images that should be measured

Changes since v1:
- Refactor TPM layer functions to allow EFI system to use them, and
remove duplicate EFI functions.
- Add test case
- Drop #ifdefs for bootm
- Add devicetree measurement config option
- Update sandbox TPM driver

Eddie James (6):
tpm: Fix spelling for tpmu_ha union
tpm: Support boot measurements
bootm: Support boot measurement
tpm: sandbox: Update for needed TPM2 capabilities
test: Add sandbox TPM boot measurement
doc: Add measured boot documentation

arch/sandbox/dts/sandbox.dtsi | 14 +
arch/sandbox/dts/test.dts | 13 +
boot/Kconfig | 23 ++
boot/bootm.c | 70 ++++
cmd/booti.c | 1 +
cmd/bootm.c | 2 +
cmd/bootz.c | 1 +
configs/sandbox_defconfig | 1 +
doc/usage/index.rst | 1 +
doc/usage/measured_boot.rst | 23 ++
drivers/tpm/tpm2_tis_sandbox.c | 100 +++--
include/bootm.h | 2 +
include/efi_tcg2.h | 44 --
include/image.h | 1 +
include/test/suites.h | 1 +
include/tpm-v2.h | 215 +++++++++-
lib/efi_loader/efi_tcg2.c | 362 +----------------
lib/tpm-v2.c | 708 +++++++++++++++++++++++++++++++++
test/boot/Makefile | 1 +
test/boot/measurement.c | 66 +++
test/cmd_ut.c | 2 +
21 files changed, 1234 insertions(+), 417 deletions(-)
create mode 100644 doc/usage/measured_boot.rst
create mode 100644 test/boot/measurement.c

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2.31.1