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[Xen-devel] Xen compatibility interface numbering

To: xen-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Xen compatibility interface numbering
From: Rich Persaud <rich.p@xxxxxxxxxxxxx>
Date: Sun, 06 Mar 2005 19:26:32 -0500
Delivery-date: Mon, 07 Mar 2005 05:27:36 +0000
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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?

2.  Does Xen/dom0/Xend perform version checking on domUs?

3.  Can a binary Xen kernel be queried for its compatibility version?

4.  How frequently does the Xen compatibility interface 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?


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