From patchwork Sat Sep 1 11:28:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fengguang Wu X-Patchwork-Id: 10584949 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8722216B1 for ; Sun, 2 Sep 2018 02:21:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 78E0329FC7 for ; Sun, 2 Sep 2018 02:21:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6CFC229FCA; Sun, 2 Sep 2018 02:21:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,DATE_IN_PAST_12_24, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 19F4329FC7 for ; Sun, 2 Sep 2018 02:21:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727141AbeIBGfK (ORCPT ); Sun, 2 Sep 2018 02:35:10 -0400 Received: from mga18.intel.com ([134.134.136.126]:13094 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726749AbeIBGfK (ORCPT ); Sun, 2 Sep 2018 02:35:10 -0400 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Sep 2018 19:21:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,318,1531810800"; d="scan'208";a="80211548" Received: from dbxu-mobl.ccr.corp.intel.com (HELO wfg-t570.sh.intel.com) ([10.254.212.218]) by orsmga003.jf.intel.com with ESMTP; 01 Sep 2018 19:20:58 -0700 Received: from wfg by wfg-t570.sh.intel.com with local (Exim 4.89) (envelope-from ) id 1fwI0X-0003Zq-7h; Sun, 02 Sep 2018 10:20:57 +0800 Message-Id: <20180901124811.703808090@intel.com> User-Agent: quilt/0.63-1 Date: Sat, 01 Sep 2018 19:28:23 +0800 From: Fengguang Wu To: Andrew Morton cc: Linux Memory Management List , Fengguang Wu cc: Peng DongX cc: Liu Jingqi cc: Dong Eddie CC: Dave Hansen cc: Huang Ying CC: Brendan Gregg cc: kvm@vger.kernel.org Cc: LKML Subject: [RFC][PATCH 5/5] [PATCH 5/5] kvm-ept-idle: enable module References: <20180901112818.126790961@intel.com> MIME-Version: 1.0 Content-Disposition: inline; filename=0005-kvm-ept-idle-enable-module.patch Lines: 47 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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" + 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