[v4,00/25] Add FADump support on PowerNV platform
mbox series

Message ID 156327668777.27462.5297279227799429100.stgit@hbathini.in.ibm.com
Headers show
Series
  • Add FADump support on PowerNV platform
Related show

Message

Hari Bathini July 16, 2019, 11:31 a.m. UTC
Firmware-Assisted Dump (FADump) is currently supported only on pSeries
platform. This patch series adds support for PowerNV platform too.

The first few patches refactor the FADump code to make use of common
code across multiple platforms. Then basic FADump support is added for
PowerNV platform. Followed by patches to honour reserved-ranges DT node
while reserving/releasing memory used by FADump. The subsequent patch
processes CPU state data provided by firmware to create and append core
notes to the ELF core file and the next patch adds support to preserve
crash data for subsequent boots (useful in cases like petitboot). The
subsequent patches add support to export opalcore. opalcore makes
debugging of failures in OPAL code easier. Firmware-Assisted Dump
documentation is also updated 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=119169
    ("MPIPL support")


Changes in v4:
  * Split the patches.
  * Rebased to latest upstream kernel version.
  * Updated according to latest OPAL changes.

---

Hari Bathini (25):
      powerpc/fadump: move internal macros/definitions to a new header
      powerpc/fadump: move internal code to a new file
      powerpc/fadump: Improve fadump documentation
      pseries/fadump: move rtas specific definitions to platform code
      pseries/fadump: introduce callbacks for platform specific operations
      pseries/fadump: define register/un-register callback functions
      pseries/fadump: move out platform specific support from generic code
      powerpc/fadump: use FADump instead of fadump for how it is pronounced
      opal: add MPIPL interface definitions
      powernv/fadump: add fadump support on powernv
      powernv/fadump: register kernel metadata address with opal
      powernv/fadump: define register/un-register callback functions
      powernv/fadump: support copying multiple kernel memory regions
      powernv/fadump: process the crashdump by exporting it as /proc/vmcore
      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
      powernv/opalcore: export /sys/firmware/opal/core for analysing opal crashes
      powernv/fadump: Warn before processing partial crashdump
      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 |  224 +++-
 arch/powerpc/Kconfig                             |   23 
 arch/powerpc/include/asm/fadump.h                |  190 ----
 arch/powerpc/include/asm/opal-api.h              |   50 +
 arch/powerpc/include/asm/opal.h                  |    6 
 arch/powerpc/kernel/Makefile                     |    6 
 arch/powerpc/kernel/fadump-common.c              |  153 +++
 arch/powerpc/kernel/fadump-common.h              |  203 ++++
 arch/powerpc/kernel/fadump.c                     | 1181 ++++++++--------------
 arch/powerpc/kernel/prom.c                       |    4 
 arch/powerpc/platforms/powernv/Makefile          |    3 
 arch/powerpc/platforms/powernv/opal-call.c       |    3 
 arch/powerpc/platforms/powernv/opal-core.c       |  637 ++++++++++++
 arch/powerpc/platforms/powernv/opal-fadump.c     |  671 ++++++++++++
 arch/powerpc/platforms/powernv/opal-fadump.h     |  154 +++
 arch/powerpc/platforms/pseries/Makefile          |    1 
 arch/powerpc/platforms/pseries/rtas-fadump.c     |  595 +++++++++++
 arch/powerpc/platforms/pseries/rtas-fadump.h     |  123 ++
 18 files changed, 3231 insertions(+), 996 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

Comments

Hari Bathini July 19, 2019, 6:19 a.m. UTC | #1
Sorry, I missed mentioning that this patchset is based on top of upstream kernel
plus the below patches:

   https://patchwork.ozlabs.org/patch/1123582/
    https://patchwork.ozlabs.org/patch/1123583/ <https://patchwork.ozlabs.org/patch/1123583/>

On 16/07/19 5:01 PM, Hari Bathini wrote:
> Firmware-Assisted Dump (FADump) is currently supported only on pSeries
> platform. This patch series adds support for PowerNV platform too.
>
> The first few patches refactor the FADump code to make use of common
> code across multiple platforms. Then basic FADump support is added for
> PowerNV platform. Followed by patches to honour reserved-ranges DT node
> while reserving/releasing memory used by FADump. The subsequent patch
> processes CPU state data provided by firmware to create and append core
> notes to the ELF core file and the next patch adds support to preserve
> crash data for subsequent boots (useful in cases like petitboot). The
> subsequent patches add support to export opalcore. opalcore makes
> debugging of failures in OPAL code easier. Firmware-Assisted Dump
> documentation is also updated 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=119169
>     ("MPIPL support")
>
>
> Changes in v4:
>   * Split the patches.
>   * Rebased to latest upstream kernel version.
>   * Updated according to latest OPAL changes.
>
> ---
>
> Hari Bathini (25):
>       powerpc/fadump: move internal macros/definitions to a new header
>       powerpc/fadump: move internal code to a new file
>       powerpc/fadump: Improve fadump documentation
>       pseries/fadump: move rtas specific definitions to platform code
>       pseries/fadump: introduce callbacks for platform specific operations
>       pseries/fadump: define register/un-register callback functions
>       pseries/fadump: move out platform specific support from generic code
>       powerpc/fadump: use FADump instead of fadump for how it is pronounced
>       opal: add MPIPL interface definitions
>       powernv/fadump: add fadump support on powernv
>       powernv/fadump: register kernel metadata address with opal
>       powernv/fadump: define register/un-register callback functions
>       powernv/fadump: support copying multiple kernel memory regions
>       powernv/fadump: process the crashdump by exporting it as /proc/vmcore
>       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
>       powernv/opalcore: export /sys/firmware/opal/core for analysing opal crashes
>       powernv/fadump: Warn before processing partial crashdump
>       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 |  224 +++-
>  arch/powerpc/Kconfig                             |   23 
>  arch/powerpc/include/asm/fadump.h                |  190 ----
>  arch/powerpc/include/asm/opal-api.h              |   50 +
>  arch/powerpc/include/asm/opal.h                  |    6 
>  arch/powerpc/kernel/Makefile                     |    6 
>  arch/powerpc/kernel/fadump-common.c              |  153 +++
>  arch/powerpc/kernel/fadump-common.h              |  203 ++++
>  arch/powerpc/kernel/fadump.c                     | 1181 ++++++++--------------
>  arch/powerpc/kernel/prom.c                       |    4 
>  arch/powerpc/platforms/powernv/Makefile          |    3 
>  arch/powerpc/platforms/powernv/opal-call.c       |    3 
>  arch/powerpc/platforms/powernv/opal-core.c       |  637 ++++++++++++
>  arch/powerpc/platforms/powernv/opal-fadump.c     |  671 ++++++++++++
>  arch/powerpc/platforms/powernv/opal-fadump.h     |  154 +++
>  arch/powerpc/platforms/pseries/Makefile          |    1 
>  arch/powerpc/platforms/pseries/rtas-fadump.c     |  595 +++++++++++
>  arch/powerpc/platforms/pseries/rtas-fadump.h     |  123 ++
>  18 files changed, 3231 insertions(+), 996 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
>