From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Xen4.2 S3 regression? Date: Mon, 24 Sep 2012 10:02:37 -0400 Message-ID: <20120924140236.GG31618@phenom.dumpdata.com> References: <50605E9A020000780009D486@nat28.tlf.novell.com> <5060640B020000780009D4D2@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Ben Guthro Cc: Thomas Goetz , Keir Fraser , john.baboval@citrix.com, Jan Beulich , xen-devel List-Id: xen-devel@lists.xenproject.org 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? konrad@phenom:~/work/linux$ git log --oneline drivers/xen/xen-acpi-processor.c 17f9b89 xen/acpi: Fix potential memory leak. 323f90a xen-acpi-processor: Add missing #include b930fe5 xen/acpi: Workaround broken BIOSes exporting non-existing C-states. 27257fc xen/acpi: Remove the WARN's as they just create noise. 59a5680 xen/acpi-processor: C and P-state driver that uploads said data to hypervisor. > > > On Mon, Sep 24, 2012 at 7:45 AM, Jan Beulich wrote: > > > >>> On 24.09.12 at 13:25, Ben Guthro 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 > > > >