From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758923Ab0JVT3P (ORCPT ); Fri, 22 Oct 2010 15:29:15 -0400 Received: from smtp-outbound-2.vmware.com ([65.115.85.73]:55374 "EHLO smtp-outbound-2.vmware.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753444Ab0JVT3M (ORCPT ); Fri, 22 Oct 2010 15:29:12 -0400 Subject: [PATCH 0/2] x86, apic: APIC timer calibration hook From: Alok Kataria Reply-To: akataria@vmware.com To: Thomas Gleixner Cc: "H. Peter Anvin" , Ingo Molnar , the arch/x86 maintainers , LKML Content-Type: text/plain Organization: VMware INC. Date: Fri, 22 Oct 2010 12:29:12 -0700 Message-Id: <1287775752.27008.57.camel@ank32.eng.vmware.com> Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 (2.12.3-8.el5_2.3) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, We need a APIC calibration hook so that we can get the APIC frequency directly from the hypervisor instead of calibrating it, since calibration can be error prone in some cases when the kernel is running virtualized. These patches were posted earlier over here http://lkml.org/lkml/2010/9/20/424 to which Thomas did reply with some comments. There was no activity of on the thread after some email exchanges. I will like to post the 2 broken out patches for the 2.6.37 merge window. Please take a look and let me know if you have any comments. 1. Preparatory change to add apic timer calibration hook. 2. Adds apic timer calibration hook. Thanks, Alok