Thx all,
Yes, it does look then like kernel-xen is required for both Dom0 and
DomU for the kernels openSUSE/SUSE currently provides.

Tony

On Fri, Mar 13, 2015 at 9:13 AM, Jim Fehlig <[email protected]> wrote:
> Tony Su wrote:
>>  Additional information selecting kernels for use in Xen (Dom0 or DomU)
>> http://wiki.xen.org/wiki/Xen_Kernel_Feature_Matrix
>>
>
> That is upstream documentation.  Distros may be configured differently.
>
>> Unless I am misunderstanding the information on this official source
>> - All modern implementations of Xen features for DomU is now
>> implemented through the pvops framework.
>> - The pvops framework is part of the mainline Linux kernel.
>>
>
> Right.
>
>> This suggests that a special kernel-xen is not needed for DomU and
>> supports all current documented features.
>>
>
> The pvops kernel is missing features wrt to the xenified kernel.  SUSE
> is actively working on closing the feature gap and moving to pvops, but
> currently we still use the xenified kernel (kernel-xen).
>
>> So, maybe kernel-xen used for DomU would be just another choice to
>> avoid possible issues in another kernel choice but not necessarily
>> recommended?
>>
>
> It's not only recommended, but required in a PV VM.  kernel-default,
> which currently doesn't have pvops enabled, wont boot in a PV VM.
>
> Regards,
> Jim
>
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