On Sun, 2016-11-20 at 23:37 +0100, Martin Kletzander wrote:
I'm not familiar with Xen to such detail, particularly with its history, but allow me to (hopefully) help you with the decision by saying that we dropped support for any QEmu older than 0.12.0 (released on December 2009). And by that I don't mean that we stopped fixing bugs for those, but that libvirt now *mandates* version 0.12.0 or newer. That is what is available in CentOS 6 and similar (or as Dan stated it "RHEL-6 era distros). For others like me, who don't know when the Xen releases were made, I found out (for you) that it should be March 2011 for 4.1 and September that year for 4.2. So I'm not even going to ask in which version xl/libxl was introduced.
FYI, xl was introduced in Xen 4.1: https://wiki.xen.org/wiki/XL Xen 4.1 was indeed released on 25th March 2011: https://wiki.xen.org/wiki/Xen_4.1_Release_Notes Xen 4.2 was released on 17 Sept _2012_: https://wiki.xen.org/wiki/Xen_Project_Release_Features Regards, Dario -- <<This happens because I choose it to happen!>> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)