Re: [PATCH v8 0/4] tpm: Preserve TPM measurement log across kexec (ppc64)

[Stefan Berger]

Hi Rob,

  can you take this series in your tree?

Regards,
   Stefan

On 9/1/22 17:46, Stefan Berger wrote:
> 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
>
> v8:
>   - Added Jarkko's, Coiby's, and Rob's tags
>   - Rebase on v6.0-rc3 that absorbed 2 already upstreamed patches
>
> v7:
>   - Added Nageswara's Tested-by tags
>   - Added back original comment to inline function and removed Jarkko's R-b tag
>
> v6:
>   - Add __init to get_kexec_buffer as suggested by Jonathan
>   - Fixed issue detected by kernel test robot
>
> v5:
>   - Rebased on 1 more patch that would otherwise create merge conflicts
>
> 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
>
>   drivers/char/tpm/eventlog/of.c |  31 +--
>   drivers/of/kexec.c             | 336 ++++++++++++++++++++++++++++-----
>   include/linux/kexec.h          |   6 +
>   include/linux/of.h             |   9 +-
>   include/linux/tpm.h            |  36 ++++
>   kernel/kexec_file.c            |   6 +
>   6 files changed, 346 insertions(+), 78 deletions(-)
>
>
> base-commit: b90cb1053190353cc30f0fef0ef1f378ccc063c5