Hi AKASHI,
On 02/27/18 at 01:48pm, AKASHI Takahiro wrote:
> subject:
>
> This is a preparatory patch set for adding kexec_file support on arm64.
>
> It was originally included in a arm64 patch set[1], but Philipp is also
> working on their kexec_file support on s390[2] and some changes are now
> conflicting.
>
> So these common part was extracted and put into a separate patch set for
> better integration. What's more, my original patch#4 was split into a few
> small chunks for easier review after Dave's comment.
>
> As such, the resulting code is basically identical with my original, and
> the only difference is that kexec_file_loaders[] is now declared in kexec.h
> after Phillipp's comment[3]. Other than that, this patch set doesn't
> require any changes on the rest of my original patch set(#1, #6 to #13).
>
> Patch#1 allows making a use of purgatory optional, particularly useful
> for arm64.
> Patch#2 commonalizes arch_kexec_kernel_{image_probe, image_load,
> verify_sig}() and arch_kimage_file_post_load_cleanup() across architectures.
> Patch#3-#7 is also intended to generalize parse_elf64_headers(), along with
> exclude_mem_range(), to be made best re-use of.
>
> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2018-February/561182.html
> [2] http://lkml.iu.edu//hypermail/linux/kernel/1802.1/02596.html
> [3] http://lists.infradead.org/pipermail/linux-arm-kernel/2018-February/562041.html
>
> AKASHI Takahiro (7):
> kexec_file: make an use of purgatory optional
> kexec_file,x86,powerpc: factor out kexec_file_ops functions
> x86: kexec_file: purge system-ram walking from prepare_elf64_headers()
> x86: kexec_file: remove X86_64 dependency from prepare_elf64_headers()
> x86: kexec_file: lift CRASH_MAX_RANGES limit on crash_mem buffer
> x86: kexec_file: clean up prepare_elf64_headers()
> kexec_file, x86: move re-factored code to generic side
>
> arch/powerpc/Kconfig | 3 +
> arch/powerpc/include/asm/kexec.h | 2 +-
> arch/powerpc/kernel/kexec_elf_64.c | 2 +-
> arch/powerpc/kernel/machine_kexec_file_64.c | 39 +---
> arch/x86/Kconfig | 3 +
> arch/x86/include/asm/kexec-bzimage64.h | 2 +-
> arch/x86/kernel/crash.c | 332 +++++-----------------------
> arch/x86/kernel/kexec-bzimage64.c | 2 +-
> arch/x86/kernel/machine_kexec_64.c | 45 +---
> include/linux/kexec.h | 36 ++-
> kernel/kexec_file.c | 236 +++++++++++++++++++-
> 11 files changed, 336 insertions(+), 366 deletions(-)
>
> --
> 2.16.2
>
Reviewed them with eyes and provided some comments, but since it changed
the elf header code, I would like to do some basic vmcore related test
with crash tools. Will response later.
Overall the cleanups looks good, thank you a lot for the cleanups!
Thanks
Dave
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