Re: [Xen-devel] Xen4.2 S3 regression?

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 24.09.12 at 13:54, Ben Guthro <ben@xxxxxxxxxx> wrote:
> I see - Konrad - do you have a changeset I can look for with the features
> Jan describes?

Alternatively you could also stick a wbinvd() in the two possibly
relevant places...

Jan

> On Mon, Sep 24, 2012 at 7:45 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
> 
>> >>> On 24.09.12 at 13:25, Ben Guthro <ben@xxxxxxxxxx> wrote:
>> > It is an older system (Core2) - so it may be using the default mechanism,
>> > but I'd have to go dig up some processor docs to be sure.
>>
>> This is not just a matter of what the CPU supports, but also what
>> info gets passed down from Dom0 - if e.g. your kernel doesn't
>> have Konrad's P-/C-state patches, then there's no way for Xen to
>> use any of the advanced methods.
>>
>> Jan
>>
>>




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