linux-kernel - [PATCH linux-next v2 0/3] powerpc/kexec: split CONFIG_CRASH_DUMP out from CONFIG_KEXEC

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Message-ID: <20240226103010.589537-1-hbathini@linux.ibm.com>
Date: Mon, 26 Feb 2024 16:00:07 +0530
From: Hari Bathini <hbathini@...ux.ibm.com>
To: linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Kexec-ml <kexec@...ts.infradead.org>
Cc: lkml <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>, Baoquan He <bhe@...hat.com>,
        Sourabh Jain <sourabhjain@...ux.ibm.com>,
        Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
        "Naveen N. Rao" <naveen.n.rao@...ux.ibm.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>, Dave Young <dyoung@...hat.com>
Subject: [PATCH linux-next v2 0/3] powerpc/kexec: split CONFIG_CRASH_DUMP out from CONFIG_KEXEC_CORE

This patch series is a follow-up to [1] based on discussions at [2]
about additional work needed to get it working on powerpc.

The first patch in the series makes struct crash_mem available with or
without CONFIG_CRASH_DUMP enabled. The next patch moves kdump specific
code for kexec_file_load syscall under CONFIG_CRASH_DUMP and the last
patch splits other kdump specific code under CONFIG_CRASH_DUMP and
removes dependency with CONFIG_CRASH_DUMP for CONFIG_KEXEC_CORE.

[1] https://lore.kernel.org/all/20240124051254.67105-1-bhe@redhat.com/
[2] https://lore.kernel.org/all/9101bb07-70f1-476c-bec9-ec67e9899744@linux.ibm.com/

Changes in v2:
* Fixed a compile error for POWERNV build reported by Sourabh.

Hari Bathini (3):
  kexec/kdump: make struct crash_mem available without CONFIG_CRASH_DUMP
  powerpc/kexec: split CONFIG_KEXEC_FILE and CONFIG_CRASH_DUMP
  powerpc/kdump: Split KEXEC_CORE and CRASH_DUMP dependency

 arch/powerpc/Kconfig                 |   9 +-
 arch/powerpc/include/asm/kexec.h     |  98 +++++-----
 arch/powerpc/kernel/prom.c           |   2 +-
 arch/powerpc/kernel/setup-common.c   |   2 +-
 arch/powerpc/kernel/smp.c            |   4 +-
 arch/powerpc/kexec/Makefile          |   3 +-
 arch/powerpc/kexec/core.c            |   4 +
 arch/powerpc/kexec/elf_64.c          |   4 +-
 arch/powerpc/kexec/file_load_64.c    | 269 ++++++++++++++-------------
 arch/powerpc/platforms/powernv/smp.c |   2 +-
 include/linux/crash_core.h           |  12 +-
 11 files changed, 209 insertions(+), 200 deletions(-)

-- 
2.43.2