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xen-devel
RE: [Xen-devel] Xen compatibility interface numbering
> Questions about compatibility between dom0 and domU kernels. In the
> ideal situation, all domU kernels would be patched to the
> same level of
> Xen in dom0. What happens if they are not?
>
> 1. Can an incompatible domU take down or in any way
> interfere with dom0?
No.
> 2. Does Xen/dom0/Xend perform version checking on domUs?
Yes.
> 3. Can a binary Xen kernel be queried for its compatibility version?
There's a dom0 op that queries the interface version.
> 4. How frequently does the Xen compatibility interface change?
Only when there's a major release number change.
> 5. Can I run a 2.4 domU against a 2.6 dom0 and vice-versa,
> if both are
> patched to the same level of Xen?
Yes. You can play with this on the Demo CD.
Ian
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