[GIT PULL] integrity subsystem updates for v6.0

[Mimi Zohar <zohar@linux.ibm.com>]

Hi Linus,

Aside from the one EVM cleanup patch, all the other changes are kexec
related.

On different architectures different keyrings are used to verify the
kexec'ed kernel image signature.  Here are a number of preparatory
cleanup patches and the patches themselves for making the keyrings -
builtin_trusted_keyring, .machine, .secondary_trusted_keyring, and
.platform - consistent across the different architectures.

The root of trust for the different keyrings was described in the cover
letter and is retained in the merge message.

Note: Stephen is carrying a merge conflict patch with
commit 68b8e9713c8e ("x86/setup: Use rng seeds from setup_data").

thanks,

Mimi

The following changes since commit 067d2521874135267e681c19d42761c601d503d6:

  ima: Fix potential memory leak in ima_init_crypto() (2022-07-13 10:13:58 -0400)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git tags/integrity-v6.0

for you to fetch changes up to 88b61b130334212f8f05175e291c04adeb2bf30b:

  Merge remote-tracking branch 'linux-integrity/kexec-keyrings' into next-integrity (2022-07-26 15:58:49 -0400)

----------------------------------------------------------------
integrity-v6.0

----------------------------------------------------------------
Coiby Xu (3):
      kexec: clean up arch_kexec_kernel_verify_sig
      kexec, KEYS: make the code in bzImage64_verify_sig generic
      arm64: kexec_file: use more system keyrings to verify kernel image signature

Michal Suchanek (1):
      kexec, KEYS, s390: Make use of built-in and secondary keyring for signature verification

Mimi Zohar (1):
      Merge remote-tracking branch 'linux-integrity/kexec-keyrings' into next-integrity

Naveen N. Rao (2):
      kexec_file: drop weak attribute from functions
      kexec: drop weak attribute from functions

Xiu Jianfeng (1):
      evm: Use IS_ENABLED to initialize .enabled

 arch/arm64/include/asm/kexec.h        | 18 +++++++-
 arch/arm64/kernel/kexec_image.c       | 11 +----
 arch/powerpc/include/asm/kexec.h      | 14 ++++++
 arch/s390/include/asm/kexec.h         | 14 ++++++
 arch/s390/kernel/machine_kexec_file.c | 18 +++++---
 arch/x86/include/asm/kexec.h          | 12 +++++
 arch/x86/kernel/kexec-bzimage64.c     | 20 +--------
 include/linux/kexec.h                 | 82 +++++++++++++++++++++++++++++-----
 kernel/kexec_core.c                   | 27 ------------
 kernel/kexec_file.c                   | 83 +++++++++++++----------------------
 security/integrity/evm/evm_main.c     | 52 ++++++++++------------
 11 files changed, 195 insertions(+), 156 deletions(-)