[Skiboot] [PATCH v4 0/6] Add support for SPIRA-H

[Stewart Smith]

Vasant Hegde <hegdevasant at linux.vnet.ibm.com> writes:
> Service Processor Interface Root Array -- defines the interface between
> the service processor and the hypervisor/firmware. Its the basic data
> format from which the device tree is built on traditional FSP based
> systems.
>
> In latest firwmare the SPIRA is split into two portions, a hypervisor
> initialized and managed portion and a service processor (FSP) built portion,
> to accommodate secure boot. The hypervisor portion will be referred to as
> the SPIRA-H and the FSP portion referred to as the SPIRA-S.
>
> The legacy N-tuples that are no logner being used have been removed. N-tuples
> that are initialized by the hypervisor at compile/build time but not modified
> by the FSP reside in the SPIRA-H. All other N-tuples reside in the SPIRA-S that
> is built dynamically by the FSP at the beginning of that HDAT memory pointed to
> by the “Host Data Area” N-tuple in SPIRA-H.
>
> This patchset adds support for new SPIRA format.
>
> @Stewart,
> I've tested this patchset on P8 and P7. Its working fine on both P8 (new SPIRA
> format) and P7 (legacy SPIRA format). Also I have discussed with Venkatesh and
> he confirmed that it will work on P7/P8 servers.
>
> Chnages in v4:
>   - As Michael suggested used HDIF_check() for SPIRAS header checking (patch 4/6)
>
> Changes in v3:
>   - Fixed broken hdata test case
>   - Added new test case
>
>
> Vasant Hegde (6):
>   hdata: Reduce reserved space in spira structure
>   hdata: Define SPIRA-H and SPIRA-S structure
>   hdata: Initialize SPIRA-H structure
>   hdata: Enable SPIRA-H
>   hdata/hdata_to_dt: Add -s option
>   hdata/test: Add new test case
>
>  asm/head.S                     |    2 +-
>  hdata/spira.c                  |   94 +
>  hdata/spira.h                  |   71 +-
>  hdata/test/Makefile.check      |    3 +
>  hdata/test/hdata_to_dt.c       |   80 +-
>  hdata/test/p8-840-spira.dt     | 4299 ++++++++++++++++++++++++++++++++++++++++
>  hdata/test/p8-840-spira.spirah |  Bin 0 -> 1024 bytes
>  hdata/test/p8-840-spira.spiras |  Bin 0 -> 2388512 bytes
>  include/mem-map.h              |    5 +-
>  skiboot.lds.S                  |    5 +
>  10 files changed, 4528 insertions(+), 31 deletions(-)
>  create mode 100644 hdata/test/p8-840-spira.dt
>  create mode 100644 hdata/test/p8-840-spira.spirah
>  create mode 100644 hdata/test/p8-840-spira.spiras

series merged to master as of a8cc0a8980fa5058464b27711d29a14e6a3fe221

I've also verified it works on P7 and P8 systems.

-- 
Stewart Smith
OPAL Architect, IBM.