Hi tomoki,
I test the patch v6.
When calling the command " guest-fsfreeze-freeze ", an error occurs.
The desc is "{"error": {"class": "GenericError", "desc": "failed to
initialize for backup: (error: 80042302)"}}"
The eventlog in the guest is : EventID 8193;CoCreateInstanceerror hr=
0x800401f0,CoInitialize is not called.Opertion :backup init.
When executing the qemu-ga.exe from the commandline,it goes well.
Running the same configuration with the patch v5,it goes well.
I can provide more information if need.
Thanks
Baiqing.
> -----Original Message-----
> From: Tomoki Sekiyama [mailto:tomoki.sekiy...@hds.com]
> Sent: Thursday, July 11, 2013 5:02 AM
> To: qemu-devel@nongnu.org
> Cc: Libaiqing; ler...@redhat.com; gham...@redhat.com;
> stefa...@gmail.com; mdr...@linux.vnet.ibm.com; lcapitul...@redhat.com;
> vroze...@redhat.com; pbonz...@redhat.com; seiji.agu...@hds.com;
> ebl...@redhat.com; ar...@redhat.com
> Subject: [PATCH v6 00/10] qemu-ga: fsfreeze on Windows using VSS
>
> Hi,
>
> This is v6 of patch series to add fsfreeze for Windows qemu-guest-agent.
>
> changes from v5:
> - Move VSS requester code into the DLL
> -- Merge patch v5 06/11(add provider) and patch v5 08/11(add requester)
> (-> patch v6 07/10)
> -- Rename qga-provider.dll to qga-vss.dll
> -- Rearrange files in qga/vss-win32* and rename some functions
> -- Introduce ErrorSet structure to call error_set_win32() as callback
> in order to set errors in the DLL without linking glib etc.
> - Make qemu-ga.exe work without qga-vss.dll even though it is configured
> "--with-vss-sdk", although fsfreeze is disabled. (patch 08/10, 09/10)
> - Introduce COMPointer<T> that automates release of COM objects to
> avoid
> leaks. (patch 07/10)
>
> v5:
> http://lists.nongnu.org/archive/html/qemu-devel/2013-07/msg00605.html
>
>
> * Description
> In Windows, VSS (Volume Shadow Copy Service) provides a facility to
> quiesce filesystems and applications before disk snapshots are taken.
> This patch series implements "fsfreeze" command of qemu-ga using VSS.
>
>
> * How to build & run qemu-ga with VSS support
>
> - Download Microsoft VSS SDK from:
> http://www.microsoft.com/en-us/download/details.aspx?id=23490
>
> - Setup the SDK
> scripts/extract-vsssdk-headers setup.exe (on POSIX-systems)
>
> - Specify installed SDK directory to configure option as:
> ./configure -with-vss-sdk="path/to/VSS SDK"
> --cross-prefix=i686-w64-mingw32-
>
> - make qemu-ga.exe qga/vss-win32/qga-vss.{dll,tlb}
>
> - Install qemu-ga.exe, qga/vss-win32/qga-vss.{dll,tlb}, and
> the other required mingw libraries into the same directory in guests
>
> - Run `qemu-ga.exe -s install' and `net start qemu-ga' in the guests
>
> Any feedback are appreciated.
>
> ---
> Tomoki Sekiyama (10):
> configure: Support configuring C++ compiler
> Add c++ keywords to QAPI helper script
> checkpatch.pl: Check .cpp files
> Add a script to extract VSS SDK headers on POSIX system
> qemu-ga: Add configure options to specify path to Windows/VSS SDK
> error: Add error_set_win32 and error_setg_win32
> qemu-ga: Add Windows VSS provider and requester as DLL
> qemu-ga: Call Windows VSS requester in fsfreeze command handler
> qemu-ga: Install Windows VSS provider on `qemu-ga -s install'
> QMP/qemu-ga-client: Make timeout longer for guest-fsfreeze-freeze
> command
>
>
> .gitignore | 1
> Makefile | 3
> Makefile.objs | 2
> QMP/qemu-ga-client | 4
> configure | 87 +++++++
> hmp.c | 2
> hw/pci/pci.c | 2
> include/qapi/error.h | 13 +
> qga/Makefile.objs | 5
> qga/commands-win32.c | 82 ++++++
> qga/main.c | 10 +
> qga/vss-win32.c | 154 ++++++++++++
> qga/vss-win32.h | 27 ++
> qga/vss-win32/Makefile.objs | 23 ++
> qga/vss-win32/install.cpp | 424
> +++++++++++++++++++++++++++++++++
> qga/vss-win32/provider.cpp | 513
> ++++++++++++++++++++++++++++++++++++++++
> qga/vss-win32/qga-vss.def | 13 +
> qga/vss-win32/qga-vss.idl | 20 ++
> qga/vss-win32/qga-vss.tlb | Bin
> qga/vss-win32/requester.cpp | 486
> ++++++++++++++++++++++++++++++++++++++
> qga/vss-win32/requester.h | 42 +++
> qga/vss-win32/vss-common.h | 128 ++++++++++
> rules.mak | 9 +
> scripts/checkpatch.pl | 37 ++-
> scripts/extract-vsssdk-headers | 35 +++
> scripts/qapi.py | 12 +
> util/error.c | 35 +++
> 27 files changed, 2145 insertions(+), 24 deletions(-)
> create mode 100644 qga/vss-win32.c
> create mode 100644 qga/vss-win32.h
> create mode 100644 qga/vss-win32/Makefile.objs
> create mode 100644 qga/vss-win32/install.cpp
> create mode 100644 qga/vss-win32/provider.cpp
> create mode 100644 qga/vss-win32/qga-vss.def
> create mode 100644 qga/vss-win32/qga-vss.idl
> create mode 100644 qga/vss-win32/qga-vss.tlb
> create mode 100644 qga/vss-win32/requester.cpp
> create mode 100644 qga/vss-win32/requester.h
> create mode 100644 qga/vss-win32/vss-common.h
> create mode 100755 scripts/extract-vsssdk-headers
