Re: [opensuse-kernel] Xen compatibility

Am 05.01.2011 09:15, schrieb Jan Beulich:

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On 05.01.11 at 08:25, Wolfgang Rosenauer wrote: I'm wondering about compatibility between Xen versions. I have currently openSUSE 11.1 (2.6.27.x, Xen 3.2.0?) running as DomU on a Dom0 using 2.6.22.x / Xen 3.1.0.

The used DomU kernel config is like this: CONFIG_XEN_COMPAT_030200_AND_LATER=y CONFIG_XEN_COMPAT=0x030200

Does it mean it's pure luck that the above combination works?

Yes, unless your hypervisor has respective 3.2.0 bits backported.

No idea ;-) It's openSUSE 10.3 so you might remember?

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Is kernel 2.6.32 (Xen 3.4?) supposed to work as DomU kernel on Xen 3.1?

Kernel and Xen version aren't really tied to one another. SLE11 SP1 uses kernel 2.6.32 and Xen 4.0.0 (soon to be 4.0.1).

With the kernel config options we use (CONFIG_XEN_COMPAT=0x030200) it's going to continue to be pure luck, and may break at any time. If you used your own config, you could set the compatibility level lower, however.

Thanks for the explanation! Wolfgang -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org