These patches apply on top of qemu.git master, and can also be obtained from:
git://github.com/mdroth/qemu.git qga-win32-v3

CHANGES SINCE V2:

- Fixed long-standing bug in getopt usage that triggered on win32 (Matsuda)
- Treat ERROR_OPERATION_ABORTED on read from unconnected/empty channel
  as eof (Matsuda)

CHANGES SINCE V1:

- Dropped guest-set-support-level patch dependency
- Rebased on master and re-tested
- Spelling/grammar fixes in commits/comments

OVERVIEW:

These patches add support for Windows to the QEMU guest agent. With these
patches the following guest agent commands are supported on Windows:

guest-ping
guest-info
guest-sync
guest-shutdown

The guest-file* commands can essentially be enabled for Windows as-is, but since
mingw does not honor the O_NONBLOCK flag, they'll need to be reworked if we're
to retain the current non-blocking behavior.

The rest of the commands are currently stubbed out for Windows (qemu-ga will
return an "unsupported" error), but it should be easy to implement these going
forward with basic Windows support/infrastructure in place.

The build was tested using Fedora15 with a MinGW cross-build target via:

configure --enable-guest-agent --cross-prefix=i686-pc-mingw32-
make qemu-ga.exe

The executable was tested using Windows XP SP3, and partially tested using
Windows Server 2008 and Windows 7 (no I/O for the latter 2, having issues with
virtio-win drivers). GLib 2.28+ for Windows is required. You can install qemu-ga
as a load-on-boot service by running:

./qemu-ga --service install

And start/stop manually via:

net start qemu-ga
net stop qemu-ga

Many thanks to Gal Hammer for contributing the service integration and shutdown
code.

 Makefile                   |    2 +-
 Makefile.objs              |    8 +-
 configure                  |    2 +-
 qapi-schema-guest.json     |  118 ++++++++--
 qemu-ga.c                  |  423 ++++++++++++++------------------
 qga/channel-posix.c        |  246 +++++++++++++++++++
 qga/channel-win32.c        |  340 +++++++++++++++++++++++++
 qga/channel.h              |   33 +++
 qga/commands-posix.c       |  528 +++++++++++++++++++++++++++++++++++++++
 qga/commands-win32.c       |  130 ++++++++++
 qga/commands.c             |   73 ++++++
 qga/guest-agent-commands.c |  585 --------------------------------------------
 qga/guest-agent-core.h     |    3 +-
 qga/service-win32.c        |  114 +++++++++
 qga/service-win32.h        |   30 +++
 15 files changed, 1790 insertions(+), 845 deletions(-)


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