[Qemu-devel] [PATCH v14 0/3] PTimer fixes/features and ARM MPTimer conversion

[Dmitry Osipenko <digetx@gmail.com>]

Hello,

Current QEMU ARM MPTimer device model provides only a certain subset of the
emulation behavior, so this patch series is supposed to add missing parts by
converting the MPTimer to use generic ptimer helper. It fixes some important
ptimer bugs and provides new features that are required for the ARM MPTimer.

Emulation behavior is verified against the real HW by running specially
crafted MPTimer tests in both icount and non-icount modes:

https://gist.github.com/digetx/dbd46109503b1a91941a

Changelog:

    I ommitted old changelog since the rest of the precursor ptimer patches
    already been applied and the ARM MPTimer patch has Peter's Crosthwaite r-b.

    V14: Set the ptimer policy in the ptimer_init() instead of adding
         ptimer_set_policy(), keeping ptimer VMState unchanged and dropped
         hw_error() hardening asserts as per Peter's Maydell V13 review
         comments, addressed the rest of the review comments.

Dmitry Osipenko (3):
  hw/ptimer: Support running with counter = 0 by introducing new policy
    feature
  hw/ptimer: Fix counter - 1 returned by ptimer_get_count for the active
    timer
  arm_mptimer: Convert to use ptimer

 hw/arm/musicpal.c              |   2 +-
 hw/core/ptimer.c               |  49 ++++++++-------
 hw/dma/xilinx_axidma.c         |   2 +-
 hw/m68k/mcf5206.c              |   2 +-
 hw/m68k/mcf5208.c              |   2 +-
 hw/net/fsl_etsec/etsec.c       |   2 +-
 hw/net/lan9118.c               |   2 +-
 hw/timer/allwinner-a10-pit.c   |   2 +-
 hw/timer/arm_mptimer.c         | 133 +++++++++++++++++++++--------------------
 hw/timer/arm_timer.c           |   2 +-
 hw/timer/aspeed_timer.c        |   2 +-
 hw/timer/digic-timer.c         |   2 +-
 hw/timer/etraxfs_timer.c       |   6 +-
 hw/timer/exynos4210_mct.c      |   7 ++-
 hw/timer/exynos4210_pwm.c      |   2 +-
 hw/timer/exynos4210_rtc.c      |   4 +-
 hw/timer/grlib_gptimer.c       |   2 +-
 hw/timer/imx_epit.c            |   4 +-
 hw/timer/imx_gpt.c             |   2 +-
 hw/timer/lm32_timer.c          |   2 +-
 hw/timer/milkymist-sysctl.c    |   4 +-
 hw/timer/puv3_ost.c            |   2 +-
 hw/timer/sh_timer.c            |   2 +-
 hw/timer/slavio_timer.c        |   2 +-
 hw/timer/xilinx_timer.c        |   2 +-
 include/hw/ptimer.h            |   7 ++-
 include/hw/timer/arm_mptimer.h |   5 +-
 27 files changed, 133 insertions(+), 122 deletions(-)

-- 
2.9.0