[Qemu-ppc] [Qemu-devel] [PATCH v1 0/3] add Homer/OCC common area emulation for PowerNV

[Balamuruhan S]

Hi All,

This is follow-up patch that implements HOMER and OCC SRAM device
models to emulate homer memory and occ common area access for pstate
table, occ sensors, runtime data and slw.

This version addresses review comments in previous patchset and
breaks it to have separate patch series for Homer and OCC emulation,

https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg00979.html

currently skiboot disables the homer/occ code path with `QUIRK_NO_PBA`,
this quirk have to be removed in skiboot for it to use HOMER and OCC
SRAM device models along with few bug fixes,

https://github.com/balamuruhans/skiboot/commit/a655514d2a730e0372a2faee277d1cf01f71a524
https://github.com/balamuruhans/skiboot/commit/fd3d93d92ec66a7494346d6d24ced7b48264c9a0
https://github.com/balamuruhans/skiboot/commit/165b3829a93bc177c18133945a8cca3a2d701173

changes from v1:
    * reuse PnvOCC device model to implement SRAM device.
    * implement PnvHomer as separate device model.
    * have core max base address as part of PnvHOMERClass.
    * reuse PNV_CHIP_INDEX() instead of introducing new `chip_num`.
    * define all the memory ops access address as macros.
    * few coding style warnings given by checkpatch.pl.

I request for review, comments and suggestions for the changes.

Balamuruhan S (3):
  hw/ppc/pnv_xscom: retrieve homer/occ base address from PBA BARs
  hw/ppc/pnv_occ: add sram device model for occ common area
  hw/ppc/pnv_homer: add PowerNV homer device model

 hw/ppc/Makefile.objs       |   1 +
 hw/ppc/pnv.c               |  87 ++++++++++++---
 hw/ppc/pnv_homer.c         | 258 +++++++++++++++++++++++++++++++++++++++++++++
 hw/ppc/pnv_occ.c           |  78 ++++++++++++++
 hw/ppc/pnv_xscom.c         |  34 +++++-
 include/hw/ppc/pnv.h       |  21 ++++
 include/hw/ppc/pnv_homer.h |  52 +++++++++
 include/hw/ppc/pnv_occ.h   |   3 +
 8 files changed, 513 insertions(+), 21 deletions(-)
 create mode 100644 hw/ppc/pnv_homer.c
 create mode 100644 include/hw/ppc/pnv_homer.h

-- 
2.14.5