From: Hari Bathini <hbathini@linux.ibm.com>
To: linuxppc-dev <linuxppc-dev@ozlabs.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.ibm.com>,
Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
Vasant Hegde <hegdevasant@linux.ibm.com>,
Oliver <oohall@gmail.com>, Nicholas Piggin <npiggin@gmail.com>,
Stewart Smith <stewart@linux.ibm.com>,
Daniel Axtens <dja@axtens.net>
Subject: [PATCH v3 00/16] Add FADump support on PowerNV platform
Date: Wed, 26 Jun 2019 02:15:37 +0530 [thread overview]
Message-ID: <156149548694.9094.3211954809582123798.stgit@hbathini.in.ibm.com> (raw)
Firmware-Assisted Dump (FADump) is currently supported only on pseries
platform. This patch series adds support for powernv platform too.
The first and third patches refactor the FADump code to make use of common
code across multiple platforms. The fifth patch adds basic FADump support
for powernv platform. Patches seven & eight honour reserved-ranges DT node
while reserving/releasing memory used by FADump. The next patch processes
CPU state data provided by firmware to create and append core notes to the
ELF core file. The tenth patch adds support for preserving crash data for
subsequent boots (useful in cases like petitboot). Patch twelve provides
support to export opalcore. This is to make debugging of failures in OPAL
code easier. The subsequent patch ensures vmcore processing is skipped
when only OPAL core is exported by f/w. The next patch provides option to
release the kernel memory used to export opalcore. The remaining patches
update Firmware-Assisted Dump documentation appropriately.
The patch series is tested with the latest firmware plus the below skiboot
changes for MPIPL support:
https://patchwork.ozlabs.org/project/skiboot/list/?series=114104
("MPIPL support")
Changes in v3:
* Rebased to latest upstream kernel version.
* Updated according to latest OPAL changes.
* Using metadata tags instead of structs between kernel & OPAL.
* Exporting OPAL core as /sys/firmware/opal/core (not /proc/opalcore)
---
Hari Bathini (16):
powerpc/fadump: move internal fadump code to a new file
powerpc/fadump: Improve fadump documentation
pseries/fadump: move out platform specific support from generic code
powerpc/fadump: use FADump instead of fadump for how it is pronounced
powerpc/fadump: enable fadump support on OPAL based POWER platform
powerpc/fadump: Update documentation about OPAL platform support
powerpc/fadump: consider reserved ranges while reserving memory
powerpc/fadump: consider reserved ranges while releasing memory
powernv/fadump: process architected register state data provided by firmware
powernv/fadump: add support to preserve crash data on FADUMP disabled kernel
powerpc/fadump: update documentation about CONFIG_PRESERVE_FA_DUMP
powerpc/powernv: export /sys/firmware/opal/core for analysing opal crashes
powernv/fadump: Skip processing /proc/vmcore when only OPAL core exists
powernv/opalcore: provide an option to invalidate /sys/firmware/opal/core file
powernv/fadump: consider f/w load area
powernv/fadump: update documentation about option to release opalcore
Documentation/powerpc/firmware-assisted-dump.txt | 193 ++--
arch/powerpc/Kconfig | 23
arch/powerpc/include/asm/fadump.h | 190 ----
arch/powerpc/include/asm/opal-api.h | 89 ++
arch/powerpc/include/asm/opal.h | 4
arch/powerpc/kernel/Makefile | 6
arch/powerpc/kernel/fadump-common.c | 196 ++++
arch/powerpc/kernel/fadump-common.h | 203 ++++
arch/powerpc/kernel/fadump.c | 1183 +++++++++-------------
arch/powerpc/kernel/prom.c | 4
arch/powerpc/platforms/powernv/Makefile | 3
arch/powerpc/platforms/powernv/opal-call.c | 2
arch/powerpc/platforms/powernv/opal-core.c | 634 ++++++++++++
arch/powerpc/platforms/powernv/opal-fadump.c | 661 ++++++++++++
arch/powerpc/platforms/powernv/opal-fadump.h | 117 ++
arch/powerpc/platforms/pseries/Makefile | 1
arch/powerpc/platforms/pseries/rtas-fadump.c | 557 ++++++++++
arch/powerpc/platforms/pseries/rtas-fadump.h | 106 ++
18 files changed, 3187 insertions(+), 985 deletions(-)
create mode 100644 arch/powerpc/kernel/fadump-common.c
create mode 100644 arch/powerpc/kernel/fadump-common.h
create mode 100644 arch/powerpc/platforms/powernv/opal-core.c
create mode 100644 arch/powerpc/platforms/powernv/opal-fadump.c
create mode 100644 arch/powerpc/platforms/powernv/opal-fadump.h
create mode 100644 arch/powerpc/platforms/pseries/rtas-fadump.c
create mode 100644 arch/powerpc/platforms/pseries/rtas-fadump.h
next reply other threads:[~2019-06-25 20:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-25 20:45 Hari Bathini [this message]
2019-06-25 20:45 ` [PATCH v3 01/16] powerpc/fadump: move internal fadump code to a new file Hari Bathini
2019-06-28 4:55 ` Stewart Smith
2019-06-28 5:51 ` Hari Bathini
2019-07-03 3:30 ` Oliver O'Halloran
2019-07-03 17:36 ` Hari Bathini
2019-06-25 20:45 ` [PATCH v3 02/16] powerpc/fadump: Improve fadump documentation Hari Bathini
2019-06-25 20:46 ` [PATCH v3 03/16] pseries/fadump: move out platform specific support from generic code Hari Bathini
2019-07-03 4:04 ` Oliver O'Halloran
2019-07-03 17:48 ` Hari Bathini
2019-06-25 20:46 ` [PATCH v3 04/16] powerpc/fadump: use FADump instead of fadump for how it is pronounced Hari Bathini
2019-06-25 20:46 ` [PATCH v3 05/16] powerpc/fadump: enable fadump support on OPAL based POWER platform Hari Bathini
2019-06-25 20:46 ` [PATCH v3 06/16] powerpc/fadump: Update documentation about OPAL platform support Hari Bathini
2019-06-25 20:46 ` [PATCH v3 07/16] powerpc/fadump: consider reserved ranges while reserving memory Hari Bathini
2019-06-25 20:46 ` [PATCH v3 08/16] powerpc/fadump: consider reserved ranges while releasing memory Hari Bathini
2019-06-25 20:46 ` [PATCH v3 09/16] powernv/fadump: process architected register state data provided by firmware Hari Bathini
2019-06-25 20:47 ` [PATCH v3 10/16] powernv/fadump: add support to preserve crash data on FADUMP disabled kernel Hari Bathini
2019-06-25 20:47 ` [PATCH v3 11/16] powerpc/fadump: update documentation about CONFIG_PRESERVE_FA_DUMP Hari Bathini
2019-06-25 20:47 ` [PATCH v3 12/16] powerpc/powernv: export /sys/firmware/opal/core for analysing opal crashes Hari Bathini
2019-06-25 20:47 ` [PATCH v3 13/16] powernv/fadump: Skip processing /proc/vmcore when only OPAL core exists Hari Bathini
2019-06-25 20:47 ` [PATCH v3 14/16] powernv/opalcore: provide an option to invalidate /sys/firmware/opal/core file Hari Bathini
2019-06-25 20:47 ` [PATCH v3 15/16] powernv/fadump: consider f/w load area Hari Bathini
2019-06-25 20:48 ` [PATCH v3 16/16] powernv/fadump: update documentation about option to release opalcore Hari Bathini
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