[GIT PULL] kexec: updates for 7.3-rc1

[GIT PULL] kexec: updates for 7.3-rc1

[Mike Rapoport]

Hi Linus,

The following changes since commit dc59e4fea9d83f03bad6bddf3fa2e52491777482:

  Linux 7.2-rc1 (2026-06-28 12:01:31 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux.git tags/kexec-v7.3-rc1

for you to fetch changes up to 9d50f7c5ad5b4b031c9b85f9a43c626d8268ab51:

  Merge branch 'crashkernel-cma' into kexec-next (2026-08-04 10:48:21 +0300)

----------------------------------------------------------------
kexec: updates for v7.3-rc1

* Deduplicate crash memory allocation and the exclusion of reserved crash
  kernel regions from architecture specific code into a generic
  crash_prepare_headers() and enable crashkernel CMA reservation on arm64 and
  riscv reservation on arm64 and riscv.
* Skip purgatory checksum verification when the kexec segments cannot be
  corrupted by DMA, which saves about 250ms on kexec.
* Replace __ASSEMBLY__ with the compiler provided __ASSEMBLER__ in
  include/linux/kexec.h.
* Fix a keyring refcount imbalance in the kdump kernel's dm-crypt key restore
  path, which over-dropped the user keyring reference when more than one key
  was restored.

----------------------------------------------------------------
Guangshuo Li (1):
      crash_dump: release keyring reference at the correct time

Jinjie Ruan (9):
      riscv: kexec_file: Fix crashk_low_res not exclude bug
      crash: Add crash_prepare_headers() to exclude crash kernel memory
      arm64: kexec_file: Use crash_prepare_headers() helper to simplify code
      x86/crash: Use crash_prepare_headers() helper to simplify code
      riscv: kexec_file: Use crash_prepare_headers() helper to simplify code
      LoongArch: kexec_file: Use crash_prepare_headers() helper to simplify code
      powerpc/kexec_file: Use crash_exclude_core_ranges() helper
      arm64: kexec_file: Add support for crashkernel CMA reservation
      riscv: kexec_file: Add support for crashkernel CMA reservation

Michal Clapinski (1):
      kexec_file: skip checksum verification when safe

Mike Rapoport (Microsoft) (4):
      Merge patch series "arm64/riscv: Add support for crashkernel CMA reservation"
      Merge branch 'kexec-fixes' into kexec-next
      Merge branch 'kexec-misc' into kexec-next
      Merge branch 'crashkernel-cma' into kexec-next

Sourabh Jain (1):
      powerpc/crash: sort crash memory ranges before preparing elfcorehdr

Thomas Huth (1):
      kexec: Replace __ASSEMBLY__ with __ASSEMBLER__ in header file

 Documentation/admin-guide/kernel-parameters.txt |  16 ++--
 arch/arm64/kernel/machine_kexec_file.c          |  40 +++-------
 arch/arm64/mm/init.c                            |   5 +-
 arch/loongarch/kernel/machine_kexec_file.c      |  40 +++-------
 arch/powerpc/include/asm/kexec_ranges.h         |   1 -
 arch/powerpc/kexec/crash.c                      |   5 +-
 arch/powerpc/kexec/ranges.c                     | 101 +-----------------------
 arch/riscv/kernel/machine_kexec_file.c          |  39 +++------
 arch/riscv/mm/init.c                            |   5 +-
 arch/x86/kernel/crash.c                         |  89 +++------------------
 drivers/of/fdt.c                                |   9 ++-
 drivers/of/kexec.c                              |   9 +++
 include/linux/crash_core.h                      |   9 +++
 include/linux/crash_reserve.h                   |   4 +-
 include/linux/kexec.h                           |   2 +-
 kernel/crash_core.c                             |  89 ++++++++++++++++++++-
 kernel/crash_dump_dm_crypt.c                    |  15 ++--
 kernel/kexec_file.c                             |  27 +++++++
 18 files changed, 218 insertions(+), 287 deletions(-)