Hey, On Thu, Mar 10, 2016 at 03:20:59PM +0100, Martin Kletzander wrote: > So this is an old, tiny series that was posted some time ago; actually > a lot of time ago. I complained because of two things. First one > being that there are no tests, so this series has them in. The second > one was that this could break migration from old code since the > parameter was not used before. So I coded up a migration flag, > handled all the special cases and then started testing it. And while > testing it, I've found out that QEMU doesn't care at all about this > parameter being there and there is no point in keeping it > super-stable, especially when it can be changed on the fly. So I > removed all that code and ended up with tiny series very similar to > previous attempts by various people. I think the main problem was that if you upgrade from a QEMU which did not care to a QEMU with the option and a libvirt which supports it, suddenly your VMs are going to go from supporting multiple heads (4) to only supporting one as older libvirt always add a 'heads=1' to the XML. Christophe
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