[Qemu-devel] [PATCH v4 upstream 00/21] Win32 iothread support

[Paolo Bonzini]

Here is again the full series for Win32 iothread support.  It should be
ready now.

Patches 1 to 5 are generic Win32 improvements, including the qemu-thread
implementation.  To simplify the dependencies, I think it's better if
this part is also routed through uq/master.

Patches 6 to 8 are generic threading improvements, including using
PTHREAD_MUTEX_ERRORCHECK as suggested by Jan.

Patches 9 to 16 eliminate polling, replacing condition variable
timedwait with wait.

Patch 17 removes a redundant condition from the TCG cpu_exec_all
function.

Patches 18 to 20 add all necessary stubs to make iothread compile
with Win32, except the IPI calls.  These are provided by patch 21.

Tested on Wine and Linux, not on "real" Windows.  The series introduces
a dependency on Windows 2K or newer.  I don't think either 95/98/ME
or Windows NT 3.x are reasonable host systems for QEMU, anyway.

v1->v2
    I incorporated all suggestions from Jan, including his renaming patch
    for qemu_*_is_self; sh4 now doesn't have a special cpu_halted anymore.

v2->v3
    Fixed structure naming, renamed qemu_signalfd_init, dropped ownership
    tracking in QemuMutex for now.

v3->v4
    Consistently using qemu_free.

Jan Kiszka (1):
  Refactor thread retrieval and check

Paolo Bonzini (20):
  unlock iothread during WaitForMultipleObjects
  implement win32 dynticks timer
  use win32 timer queues
  add win32 qemu-thread implementation
  include qemu-thread.h early
  add assertions on the owner of a QemuMutex
  remove CONFIG_THREAD
  inline cpu_halted into sole caller
  always qemu_cpu_kick after unhalting a cpu
  exit round-robin vcpu loop if cpu->stopped is true
  always signal pause_cond after stopping a VCPU
  do not use timedwait on qemu_halt_cond
  do not use timedwait on qemu_system_cond
  do not use timedwait on qemu_pause_cond
  do not use timedwait on qemu_cpu_cond
  iothread stops the vcpu thread via IPI
  merge all signal initialization with qemu_signalfd_init, rename
  provide dummy signal init functions for win32
  protect qemu_cpu_kick_self for Win32
  add Win32 IPI service

 Makefile.objs                        |    4 +-
 configure                            |    2 -
 cpu-exec.c                           |    9 +-
 cpus.c                               |  298 +++++++++++++++++-----------------
 exec.c                               |    2 +-
 hw/ppc.c                             |    2 +
 hw/sun4m.c                           |   10 +-
 hw/sun4u.c                           |    4 +-
 os-win32.c                           |    2 +
 qemu-common.h                        |    2 +-
 qemu-thread.c => qemu-thread-posix.c |   21 +--
 qemu-thread-posix.h                  |   17 ++
 qemu-thread-win32.c                  |  260 +++++++++++++++++++++++++++++
 qemu-thread-win32.h                  |   21 +++
 qemu-thread.h                        |   31 ++--
 qemu-timer.c                         |   89 +++++------
 target-alpha/exec.h                  |   11 --
 target-arm/exec.h                    |   13 --
 target-cris/exec.h                   |   11 --
 target-i386/exec.h                   |   12 --
 target-i386/kvm.c                    |    4 +-
 target-m68k/exec.h                   |   10 --
 target-microblaze/exec.h             |   11 --
 target-mips/exec.h                   |   11 --
 target-ppc/exec.h                    |   11 --
 target-s390x/exec.h                  |   12 --
 target-s390x/kvm.c                   |    1 +
 target-sh4/exec.h                    |   10 --
 target-sparc/exec.h                  |   10 --
 ui/vnc-jobs-async.c                  |    2 +-
 30 files changed, 541 insertions(+), 362 deletions(-)
 rename qemu-thread.c => qemu-thread-posix.c (90%)
 create mode 100644 qemu-thread-posix.h
 create mode 100644 qemu-thread-win32.c
 create mode 100644 qemu-thread-win32.h

-- 
1.7.4