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

[Vasant Hegde]

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

-- 
Vasant
2.5.0