[Qemu-devel] [PATCH v3 0/7] ppc: compute cpu_dt_id in the machine code

[Greg Kurz]

This series is a sequel to the discussion on a patch from Ben's powernv
patchset:

        http://patchwork.ozlabs.org/patch/597153/

Indeed, since the DT is a machine abstraction, it should definitely sit
under hw/ppc and not in the target code:
- all machine types are forced to share the same numbering logic
- user mode does not need that => there are #ifdef everywhere

So this series moves all the current numbering logic to the machine
code.

This v3 is nearly a total rewrite (only patches 1/7 and 4/7 come from
v2). The most notable changes are:
- vcpu_dt_id is computed earlier instead of passing a cpu_index and
  a function pointer to the generic code
- parse cpu features only once (*)
- consolidate the vcpu_dt_id logic in sPAPR

(*) this depends on recent work by Igor. The code is not upstream yet,
    but should be in Eduardo Habkost's next pull request, later this
    week according to:

https://lists.nongnu.org/archive/html/qemu-devel/2016-07/msg00543.html

In the meantime, I've merged Eduardo's branch into master, added my
patches and pushed that to:

git://github.com/gkurz/qemu.git ppc-vcpu-dt-id-rework

Please comment.

---

Greg Kurz (7):
      ppc: different creation paths for cpus in system and user mode
      ppc: move smp_threads sanity checks to spapr
      ppc: parse cpu features once
      ppc: open code cpu creation for machine types
      ppc: each machine type to provide vcpu_dt_id
      ppc: drop vcpu_idt_id bits from the target code
      spapr: consolidate the logic of core cpu_dt_id


 hw/ppc/e500.c                   |    4 ++
 hw/ppc/mac_newworld.c           |    3 +-
 hw/ppc/mac_oldworld.c           |    3 +-
 hw/ppc/ppc.c                    |   64 +++++++++++++++++++++++++++++++++++++++
 hw/ppc/ppc440_bamboo.c          |    3 +-
 hw/ppc/ppc4xx_devs.c            |    3 +-
 hw/ppc/prep.c                   |    3 +-
 hw/ppc/spapr.c                  |   30 +++++++++++++-----
 hw/ppc/spapr_cpu_core.c         |   33 +++++++++++++++-----
 hw/ppc/virtex_ml507.c           |    3 +-
 include/hw/ppc/ppc.h            |    2 +
 include/hw/ppc/spapr_cpu_core.h |    9 +++++
 target-ppc/cpu.h                |    5 ++-
 target-ppc/translate_init.c     |   35 ---------------------
 14 files changed, 139 insertions(+), 61 deletions(-)

--
Greg