On 11/07/18 11:15, Woodhouse, David wrote:
> On Wed, 2018-05-30 at 13:09 +0200, Juergen Gross wrote:
>> There is no need to set the same capabilities for each cpu
>> individually. This can easily be done for all cpus when starting the
>> kernel.
>>
>> Upstream commit: 0808e80cb760de2733c0527d2090ed2205a1eef8 ("xen: set
>> cpu capabilities from xen_start_kernel()")
>>
>> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
>> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
>
> That breaks PV guests because they get KAISER enabled — when
> kaiser_check_boottime_disable() runs, X86_FEATURE_XENPV isn't set.
Which kernel version are you talking about?
With upstream commit 60d3450167433f2d099ce2869dc52dd9e7dc9b29 which will
be part of next stable-4.9 everything is fine.
Juergen
