From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47E70C43334 for ; Tue, 4 Sep 2018 19:14:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 02C6B2075E for ; Tue, 4 Sep 2018 19:14:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 02C6B2075E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728041AbeIDXlL (ORCPT ); Tue, 4 Sep 2018 19:41:11 -0400 Received: from mga11.intel.com ([192.55.52.93]:48036 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727941AbeIDXlK (ORCPT ); Tue, 4 Sep 2018 19:41:10 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Sep 2018 12:14:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,330,1531810800"; d="scan'208";a="260670318" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.20]) by fmsmga006.fm.intel.com with ESMTP; 04 Sep 2018 12:14:25 -0700 Date: Tue, 4 Sep 2018 12:14:25 -0700 From: Sean Christopherson To: Fengguang Wu Cc: Andrew Morton , Linux Memory Management List , Peng DongX , Liu Jingqi , Dong Eddie , Dave Hansen , Huang Ying , Brendan Gregg , kvm@vger.kernel.org, LKML Subject: Re: [RFC][PATCH 5/5] [PATCH 5/5] kvm-ept-idle: enable module Message-ID: <20180904191424.GC5869@linux.intel.com> References: <20180901112818.126790961@intel.com> <20180901124811.703808090@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180901124811.703808090@intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Sep 01, 2018 at 07:28:23PM +0800, Fengguang Wu wrote: > Signed-off-by: Fengguang Wu > --- > arch/x86/kvm/Kconfig | 11 +++++++++++ > arch/x86/kvm/Makefile | 4 ++++ > 2 files changed, 15 insertions(+) > > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig > index 1bbec387d289..4c6dec47fac6 100644 > --- a/arch/x86/kvm/Kconfig > +++ b/arch/x86/kvm/Kconfig > @@ -96,6 +96,17 @@ config KVM_MMU_AUDIT > This option adds a R/W kVM module parameter 'mmu_audit', which allows > auditing of KVM MMU events at runtime. > > +config KVM_EPT_IDLE > + tristate "KVM EPT idle page tracking" KVM_MMU_IDLE_INTEL might be a more user friendly name, I doubt that all Kconfig users would immediately associate EPT with Intel's two dimensional paging. And it meshes nicely with KVM_MMU_IDLE as a base name if we ever want to move common functionality to its own module, as well as all of the other KVM_MMU_* nomenclature. > + depends on KVM_INTEL > + depends on PROC_PAGE_MONITOR > + ---help--- > + Provides support for walking EPT to get the A bits on Intel > + processors equipped with the VT extensions. > + > + To compile this as a module, choose M here: the module > + will be called kvm-ept-idle. > + > # OK, it's a little counter-intuitive to do this, but it puts it neatly under > # the virtualization menu. > source drivers/vhost/Kconfig > diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile > index dc4f2fdf5e57..5cad0590205d 100644 > --- a/arch/x86/kvm/Makefile > +++ b/arch/x86/kvm/Makefile > @@ -19,6 +19,10 @@ kvm-y += x86.o mmu.o emulate.o i8259.o irq.o lapic.o \ > kvm-intel-y += vmx.o pmu_intel.o > kvm-amd-y += svm.o pmu_amd.o > > +kvm-ept-idle-y += ept_idle.o > + > obj-$(CONFIG_KVM) += kvm.o > obj-$(CONFIG_KVM_INTEL) += kvm-intel.o > obj-$(CONFIG_KVM_AMD) += kvm-amd.o > + > +obj-$(CONFIG_KVM_EPT_IDLE) += kvm-ept-idle.o > -- > 2.15.0 > > >