From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: Re: [PATCH 0/9] Rework architected timer and fix UEFI reset Date: Thu, 03 Sep 2015 18:10:56 +0100 Message-ID: <55E87F20.40900@arm.com> References: <1440942866-23802-1-git-send-email-christoffer.dall@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit To: Christoffer Dall , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org Return-path: Received: from foss.arm.com ([217.140.101.70]:41042 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754025AbbICRK7 (ORCPT ); Thu, 3 Sep 2015 13:10:59 -0400 In-Reply-To: <1440942866-23802-1-git-send-email-christoffer.dall@linaro.org> Sender: kvm-owner@vger.kernel.org List-ID: Hi Christoffer, On 30/08/15 14:54, Christoffer Dall wrote: > The architected timer integration with the vgic had some shortcomings in > that certain guests (one being UEFI) weren't fully supported. > > In fixing this I also found that we are scheduling the hrtimer for the > virtual timer way too often, with a potential performance overhead. > > This series tries to address these problems in proviging level-triggered > semantics for the arch timer and vgic intergration and seeks to clarify > the behavior when setting/clearing the active state on the physical > distributor. > > Series based on kvmarm/next and also available at: > https://git.linaro.org/people/christoffer.dall/linux-kvm-arm.git timer-rework I'm quite pleased with the overall look of this series. It fixes a number of issues that have been around for a while, plus some others I've recently introduced... Now, I fear this is probably too big a series to be shipped as a fix for 4.3. Can you come up with a minimal series that we could merge quickly (I'm thinking patches 7 and 9), and leave the rest for the following merge window? Thanks, M. -- Jazz is not dead. It just smells funny...