[OpenPower-Firmware] [PATCH 0/4] kernel: add FADump awareness in petitboot kernel

[Hari Bathini]

Leveraging MPIPL feature, FADump support is added in upstream kernel
(v5.4) for OPAL based platforms. To fulfill this support, petitboot
kernel needs to be made FADump aware (config PRESERVE_FA_DUMP). So,
enable 'config PRESERVE_FA_DUMP' in skiboot defconfig.

Also, backport relevant patches to v5.3 stable release (v5.3.1) till
petitboot kernel is rebased to 5.4 version.

---

Hari Bathini (4):
      powerpc/opal: add MPIPL interface definitions
      powerpc/fadump: improve how crashed kernel's memory is reserved
      powerpc/fadump: add support to preserve crash data on FADUMP disabled kernel
      powerpc/configs: add FADump support in petitboot kernel


 arch/powerpc/Kconfig                       |    9 +
 arch/powerpc/configs/skiroot_defconfig     |    1 
 arch/powerpc/include/asm/fadump.h          |   17 ++-
 arch/powerpc/include/asm/opal-api.h        |   44 +++++++
 arch/powerpc/include/asm/opal.h            |    5 +
 arch/powerpc/kernel/Makefile               |    4 -
 arch/powerpc/kernel/fadump.c               |  176 ++++++++++++++++++++++++----
 arch/powerpc/kernel/prom.c                 |    4 -
 arch/powerpc/platforms/powernv/opal-call.c |    3 
 9 files changed, 228 insertions(+), 35 deletions(-)