[PATCH v3 0/9] Add IBM PPE42 CPU support

[Glenn Miles <milesg@linux.ibm.com>]

v3:
  - Split v2 patch 1 into smaller patches 1 through 5 (Cedric)
  - Moved special PPE42 decrementer support into distinct patch (Cedric)
  - Introduced a specific MachineState for the ppe42 Machine (Cedric)
  - Use qdev_realize to create the machine (Cedric)
  - Use valid_cpu_types to determine validity of CPU (Cedric)
  - Changed machine ram limit from 2GB to 512KB (Cedric)
  - Utilize the TRANS macro to reduce TCG code (Chinmay)

This patchset adds support for the IBM PPE42 processor,
including a simple machine providing a platform for
testing the PPE42 instructions.

The PPE42 processor is used as an embedded processor in
the IBM Power9, Power10 and Power12 processors for various
tasks.  It is basically a stripped down version of the
IBM PowerPC 405 processor, with some added instructions
for handling 64-bit loads and stores and some 64-bit
logical operations.
    
For more information on the PPE 42 processor please visit:
    
https://wiki.raptorcs.com/w/images/a/a3/PPE_42X_Core_Users_Manual.pdf

A functional test is included.  This test downloads a
prebuilt test image from:

https://github.com/milesg-github/ppe42-tests

Building the image rquires a forked version of an old
version of GCC, which can be found here:

https://github.com/open-power/ppe42-gcc

Thanks,

Glenn


Glenn Miles (9):
  target/ppc: IBM PPE42 general regs and flags
  target/ppc: Add IBM PPE42 family of processors
  target/ppc: IBM PPE42 exception flags and regs
  target/ppc: Add IBM PPE42 exception model
  target/ppc: Support for IBM PPE42 MMU
  target/ppc: Add IBM PPE42 special instructions
  hw/ppc: Support for an IBM PPE42 CPU decrementer
  hw/ppc: Add a test machine for the IBM PPE42 CPU
  tests/functional: Add test for IBM PPE42 instructions

 MAINTAINERS                         |   7 +
 hw/ppc/Kconfig                      |   9 +
 hw/ppc/meson.build                  |   2 +
 hw/ppc/ppc_booke.c                  |   7 +-
 hw/ppc/ppe42_machine.c              | 102 +++++
 include/hw/ppc/ppc.h                |   1 +
 target/ppc/cpu-models.c             |   7 +
 target/ppc/cpu-models.h             |   4 +
 target/ppc/cpu.h                    |  76 +++-
 target/ppc/cpu_init.c               | 241 ++++++++--
 target/ppc/excp_helper.c            | 163 +++++++
 target/ppc/helper_regs.c            |  45 +-
 target/ppc/insn32.decode            |  66 ++-
 target/ppc/tcg-excp_helper.c        |  12 +
 target/ppc/translate.c              |  35 +-
 target/ppc/translate/ppe-impl.c.inc | 663 ++++++++++++++++++++++++++++
 tests/functional/meson.build        |   1 +
 tests/functional/test_ppc_ppe42.py  |  79 ++++
 18 files changed, 1453 insertions(+), 67 deletions(-)
 create mode 100644 hw/ppc/ppe42_machine.c
 create mode 100644 target/ppc/translate/ppe-impl.c.inc
 create mode 100644 tests/functional/test_ppc_ppe42.py

-- 
2.43.0