[libvirt] [PATCH 0/3] Basic libxenlight driver

[Markus Groß]

Hi,

I started working on a libxenlight driver for libvirt a few weeks ago.
By that time I didn't knew Jim Fehlig was also working on a driver for that api:
http://article.gmane.org/gmane.comp.emulators.libvirt/33024

Because I already did some work and there is no driver from Jim yet,
I am posting my current version of the driver here.

It is a driver for the libxl (libxenlight) interface from the upcoming xen 4.1.

This driver is divided into 3 patches, the first adds the driver without
changing anything in libvirt, the second one integrates it into the
build system of libvirt. The last one is self explanatory.

However there are a few caveats.

1. The driver offers only basic functionality like: suspend, resume, pinvcpu, etc.
   create, restore, definexml and others are not yet implemented.

2. The driver supports libvirtxml <-> xen-xm conversion, thanks to the unified xen
   driver which already offered this functionality. But since this driver is
   not part of xen unified, I had to copy this functionality, rather than reusing it.

3. To compile libvirt with this driver, there is a new flag --with-xenlight.
   To fix some linker errors, libvirt has to link against several
   additional libraries now which are used in xen's libxenlight.
   These libraries are not directly used within libvirt,
   but I believe that some of them are GPL licensed, so that could be an issue.

4. To compile the driver you may need to copy the libxl_utils.h
   from tools/libxl of your xen-source directory to an include dir in your PATH.
   Right now this file is not copied when installing xen,
   but I will talk with the xen developers about that.

Please let me know what you think about it.

Thanks,
Markus


Markus Groß (3):
  Add basic libxenlight driver
  Integrate libxenlight driver into libvirt
  Add myself to AUTHORS

 AUTHORS                          |    1 +
 configure.ac                     |   35 +-
 include/libvirt/virterror.h      |    1 +
 po/POTFILES.in                   |    2 +
 src/Makefile.am                  |   25 +
 src/driver.h                     |    3 +-
 src/libvirt.c                    |   13 +
 src/util/virterror.c             |    3 +
 src/xenlight/xl_driver.c         |  948 ++++++++++++++++++
 src/xenlight/xl_driver.h         |   46 +
 src/xenlight/xl_driver_private.h |   52 +
 src/xenlight/xl_utils.c          | 1969 ++++++++++++++++++++++++++++++++++++++
 src/xenlight/xl_utils.h          |   90 ++
 tools/virsh.c                    |    3 +
 14 files changed, 3188 insertions(+), 3 deletions(-)
 create mode 100644 src/xenlight/xl_driver.c
 create mode 100644 src/xenlight/xl_driver.h
 create mode 100644 src/xenlight/xl_driver_private.h
 create mode 100644 src/xenlight/xl_utils.c
 create mode 100644 src/xenlight/xl_utils.h

-- 
1.7.4