From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755429AbdBGRXT (ORCPT ); Tue, 7 Feb 2017 12:23:19 -0500 Received: from mail-wm0-f68.google.com ([74.125.82.68]:34796 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754217AbdBGRXR (ORCPT ); Tue, 7 Feb 2017 12:23:17 -0500 Subject: Re: [PATCH v2 0/6] KVM: x86: cleanup and speedup for APICv To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org References: <1482164232-130035-1-git-send-email-pbonzini@redhat.com> From: Paolo Bonzini Message-ID: Date: Tue, 7 Feb 2017 18:23:04 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <1482164232-130035-1-git-send-email-pbonzini@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 19/12/2016 17:17, Paolo Bonzini wrote: > These are the fixed patches that now pass vmx.flat. The issue in > "KVM: x86: do not scan IRR twice on APICv vmentry" was that, > in v1 of the patches, kvm_cpu_get_interrupt did not scan IRR > at all if it found PIR.ON=0. This is now fixed in patches 4 and 5. > > Another latent bug has to be fixed in patch 2. The patch also > highlights the maze that check_nested_events has become. Fixing > that is left for later. > > The patches are on top of the (non-APICv-related) KVM_REQ_EVENT > patches from this morning. According to kvm-unit-tests, patch 6 speeds > up self-IPIs (if not done through the accelerated self-IPI MSR) by 5-10%. > > Paolo Ping? Paolo