[Bug 1218817] Re: [FFE] Update to Xen-4.3 in Saucy

[Stefan Bader]

I uploaded and build the new Xen package in my PPA (ppa:smb/xen):

https://launchpad.net/~smb/+archive/xen/+build/4880118/+files/buildlog_ubuntu-saucy-amd64.xen_4.3.0-0ubuntu3_UPLOADING.txt.gz
https://launchpad.net/~smb/+archive/xen/+build/4880119/+files/buildlog_ubuntu-saucy-i386.xen_4.3.0-0ubuntu3_UPLOADING.txt.gz

Testing done:
- Install and use the new packages from the PPA in Saucy (one Intel and one AMD based host)
- On each host
  - Create and use HVM guests locally with xm/xl commands.
  - Create and use HVM guests through libvirt (xm and xl stack)
    - For xl stack using qemu-xen-traditional and qemu-xen (actually qemu-system-i386)
   - Create and use PVM guests from clould-images locally with xm/xl commands.

[Note: PVM domains are not working through libvirt with the current and
all previous releases.]

** Description changed:

  Xen-4.3 released in July and beside the new features and improvements described in [1] the packaging has been improved to:
  - continue to support qemu-dm (also called qemu-xen-traditional)
  - automatically migrate xm/xend persistent domains to use the current 4.3
- - export libxenlight properly into libxen-dev (required to get libvirt libxl support)
+ - export libxenlight properly into libxen-dev (required to get libvirt libxl 
+   support)
+ - Depend on qemu to use upstream qemu in qemu-xen mode
  - add support to compile on armhf
  
  Since this new release also marks a bigger change as 32bit hypervisors
  are no longer supported and the old xm/xend stack now being officially
  deprecated for the second release [2] (making a complete removal
  expected sooner than later), it is important to get this into Saucy to
  allow this to settle before the next LTS. Also the Arm support might be
  quite important.
  
  [1] http://wiki.xen.org/wiki/Xen_4.3_Feature_List
  [2] http://wiki.xen.org/wiki/Xen_Release_Features

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https://bugs.launchpad.net/bugs/1218817

Title:
  [FFE] Update to Xen-4.3 in Saucy

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