Re: [PATCH v4 0/7] kexec: add generic support for elf kernel images

Sven Schnelle [off-list ref] writes:

Changes to v3:
 - add support for 32-bit ELF files

Changes to v2:
 - use git format-patch -C

Changes to v1:
 - split up patch into smaller pieces
 - rebase onto powerpc/next
 - remove unused variable in kexec_elf_load()

Changes to RFC version:
 - remove unused Elf_Rel macro
 - remove section header parsing
 - remove PURGATORY_STACK_SIZE
 - change order of elf_*_to_cpu() functions
 - remove elf_addr_to_cpu macro

Sven Schnelle (7):
  kexec: add KEXEC_ELF
  kexec_elf: change order of elf_*_to_cpu() functions
  kexec_elf: remove parsing of section headers
  kexec_elf: remove PURGATORY_STACK_SIZE
  kexec_elf: remove Elf_Rel macro
  kexec_elf: remove unused variable in kexec_elf_load()
  kexec_elf: support 32 bit ELF files

 arch/Kconfig                       |   3 +
 arch/powerpc/Kconfig               |   1 +
 arch/powerpc/kernel/kexec_elf_64.c | 551 +----------------------------
 include/linux/kexec.h              |  23 ++
 kernel/Makefile                    |   1 +
 kernel/kexec_elf.c                 | 418 ++++++++++++++++++++++
 6 files changed, 456 insertions(+), 541 deletions(-)
 create mode 100644 kernel/kexec_elf.c

The series applies on v5.1 but not newer kernels, so it needs to be
rebased.

I tested with v5.1 in ppc64le kexecing to both little-endian and
big-endian kernels, and also in ppc64 kexecing to both big-endian and
little-endian kernels so:

Tested-by: Thiago Jung Bauermann <redacted>

--
Thiago Jung Bauermann
IBM Linux Technology Center