Re: [Xen-devel] [PATCH v3 2/4] x86: possibly bring up all CPUs even if not all are supposed to be used

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 19.07.18 at 13:16, <joao.m.martins@xxxxxxxxxx> wrote:
> On 07/19/2018 11:32 AM, Jan Beulich wrote:
>> Note: On one of my test systems the parked CPUs get _PSD data reported
>>       by Dom0 that is different from the non-parked ones (coord_type is
>>       0xFC instead of 0xFE). Giving Dom0 enough vCPU-s eliminates this
>>       problem, so there is apparently something amiss in the processor
>>       driver. I've tried to figure out what, but I couldn't, despite the
>>       AML suggesting that this might be some _OSC invocation (but if it
>>       is, I can't find it - acpi_run_osc() clearly does not anywhere get
>>       invoked in a per-CPU fashion).
>> 
> 
> Regarding your second note, could the commit below (in the linux acpi 
> processor
> driver) help/fixes it?
> 
> 4d0f1ce69559 xen/acpi: upload _PSD info for non Dom0 CPUs too

No, that is in place already.

Jan



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