Re: [Xen-devel] [PATCH v4 for-4.9] x86/vpmu: add cpu hot unplug notifier for vpmu

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 31.05.17 at 11:23, <julien.grall@xxxxxxx> wrote:
> On 05/31/2017 07:54 AM, Jan Beulich wrote:
>>>>> On 26.05.17 at 07:20, <luwei.kang@xxxxxxxxx> wrote:
>>> Hi Julien,
>>>     Follow your advice, I change the tag to [PATCH v4 for-4.9] because of we
>>> hope this patch can be merged in Xen 4.9.
>>
>> Ping?
> 
> Sorry for the late reply. I was waiting for staging to re-open before 
> going through the potential list of patches to go in Xen 4.9.
> 
> Am I right that vPMU is disabled by default? I.e a user would have to 
> pass "vpmu" on the command line to use it? ([1] seems to confirm that)

Yes. And enabling it renders the entire configuration unsupported
(XSA-163).

Jan


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