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

[Ben Guthro <ben@xxxxxxxxxx>]

On Mon, Sep 24, 2012 at 8:22 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:

On Mon, Sep 24, 2012 at 07:54:05AM -0400, Ben Guthro wrote:
>    I see - Konrad - do you have a changeset I can look for with the features
>    Jan describes?

xen-acpi-processor driver was merged to upstream Linux kernel v3.4.

I see - so the advanced methods are not being used then

This same kernel does work with Xen-4.0.x though. Is there an assumption in the code that ties Xen-4.2 to a newer kernel?

 

-- Pasi

>    On Mon, Sep 24, 2012 at 7:45 AM, Jan Beulich <[1]JBeulich@xxxxxxxx> wrote:

>
>      >>> On 24.09.12 at 13:25, Ben Guthro <[2]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
>

> References
>
>    Visible links
>    1. mailto:JBeulich@xxxxxxxx
>    2. mailto:ben@xxxxxxxxxx

> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel