The of-tree subsystem does not currently preserve the IBM vTPM 1.2 and vTPM 2.0 measurement logs across a kexec on PowerVM and PowerKVM. This series fixes this for the kexec_file_load() syscall using the flattened device tree (fdt) to carry the TPM measurement log's buffer across kexec. Stefan v4: - Rebased on 2 patches that would otherwise create merge conflicts; posting these patches in this series with several tags removed so krobot can test the series already - Changes to individual patches documented in patch descripitons v3: - Moved TPM Open Firmware related function to drivers/char/tpm/eventlog/tpm_of.c v2: - rearranged patches - fixed compilation issues for x86 Palmer Dabbelt (1): drivers: of: kexec ima: Support 32-bit platforms Stefan Berger (3): tpm: of: Make of-tree specific function commonly available of: kexec: Refactor IMA buffer related functions to make them reusable tpm/kexec: Duplicate TPM measurement log in of-tree for kexec Vaibhav Jain (1): of: check previous kernel's ima-kexec-buffer against memory bounds drivers/char/tpm/eventlog/of.c | 31 +--- drivers/of/kexec.c | 328 +++++++++++++++++++++++++++++---- include/linux/kexec.h | 6 + include/linux/of.h | 8 +- include/linux/tpm.h | 27 +++ kernel/kexec_file.c | 6 + 6 files changed, 340 insertions(+), 66 deletions(-) base-commit: 03c765b0e3b4cb5063276b086c76f7a612856a9a -- 2.35.1
