On 04/01/2010 02:40 PM, Daniel P. Berrange wrote: > On Thu, Apr 01, 2010 at 07:32:52AM -0400, Tom Horsley wrote: >>>> even if it's the same layout >>>> something almost certainly moved things or flipped a flag of some sort. >>> >>> Well, what? it's a bug. >> >> It certainly seemed a bit like a bug to me, but I also can't imagine >> how it could keep things absolutely identical unless it did something >> like save the details of the pci slots, interrupt assignments, etc. >> in the .xml files it dumps, so when you reload the xml in a new >> distro, it can replicate the details. > > As of Fedora 13 we *will* be saving the PCI slots - you'll see in the XML for > any new guest you define, it will have loads of PCI info there. We also now > have ability to specify an exact CPU model, so we no longer susceptible to > changes in host CPU flags. > > In Fedora 12 we merely save the machine type eg you'll see the machine type > in the XML be changed from 'pc' to a specific version like 'pc-0.11'. This > is enough to keep some OS happy some of the time, but PCI slots is what we > really need for the full job. > >> >> I've seen the dumped xml - it ain't got that stuff in there :-). >> >> It isn't so bad when I'm just trying to boot the machine on a new >> distro, but I thought live migration was part of the feature set. >> This seems like an attempt to migrate from f12 to f13 would move >> the hardware out from under me, something I doubt even a linux >> KVM could survive :-). > > When we have PCI slot persistence you should be able to live migrate between > different versions of Fedora and have everything just work.
You're talking about migration between f12 -> f13, not live migration which is more complex and needs 2 hosts. > > > Daniel _______________________________________________ virt mailing list [email protected] https://admin.fedoraproject.org/mailman/listinfo/virt
