From patchwork Wed Dec 26 13:15:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fengguang Wu X-Patchwork-Id: 10743127 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 4A30391E for ; Wed, 26 Dec 2018 13:38:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 389EC28495 for ; Wed, 26 Dec 2018 13:38:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2C31628938; Wed, 26 Dec 2018 13:38:26 +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=-7.9 required=2.0 tests=BAYES_00,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 D2AD328495 for ; Wed, 26 Dec 2018 13:38:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726867AbeLZNiO (ORCPT ); Wed, 26 Dec 2018 08:38:14 -0500 Received: from mga04.intel.com ([192.55.52.120]:33941 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726957AbeLZNhH (ORCPT ); Wed, 26 Dec 2018 08:37:07 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Dec 2018 05:37:04 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,400,1539673200"; d="scan'208";a="121185467" Received: from wangdan1-mobl1.ccr.corp.intel.com (HELO wfg-t570.sh.intel.com) ([10.254.210.154]) by FMSMGA003.fm.intel.com with ESMTP; 26 Dec 2018 05:37:02 -0800 Received: from wfg by wfg-t570.sh.intel.com with local (Exim 4.89) (envelope-from ) id 1gc9Mr-0005PI-LE; Wed, 26 Dec 2018 21:37:01 +0800 Message-Id: <20181226133352.133164898@intel.com> User-Agent: quilt/0.65 Date: Wed, 26 Dec 2018 21:15:04 +0800 From: Fengguang Wu To: Andrew Morton cc: Linux Memory Management List , Fengguang Wu cc: kvm@vger.kernel.org Cc: LKML cc: Fan Du cc: Yao Yuan cc: Peng Dong cc: Huang Ying CC: Liu Jingqi cc: Dong Eddie cc: Dave Hansen cc: Zhang Yi cc: Dan Williams Subject: [RFC][PATCH v2 18/21] kvm-ept-idle: enable module References: <20181226131446.330864849@intel.com> MIME-Version: 1.0 Content-Disposition: inline; filename=0007-kvm-ept-idle-enable-module.patch 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(+) --- linux.orig/arch/x86/kvm/Kconfig 2018-12-23 20:09:04.628882396 +0800 +++ linux/arch/x86/kvm/Kconfig 2018-12-23 20:09:04.628882396 +0800 @@ -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 --- linux.orig/arch/x86/kvm/Makefile 2018-12-23 20:09:04.628882396 +0800 +++ linux/arch/x86/kvm/Makefile 2018-12-23 20:09:04.628882396 +0800 @@ -19,6 +19,10 @@ kvm-y += x86.o mmu.o emulate.o i8259.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