Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Message-Id: <20180901124811.703808090@intel.com>
User-Agent: quilt/0.63-1
Date:   Sat, 01 Sep 2018 19:28:23 +0800
From:   Fengguang Wu <fengguang.wu@intel.com>
To:     Andrew Morton <akpm@linux-foundation.org>
cc:     Linux Memory Management List <linux-mm@kvack.org>,
        Fengguang Wu <fengguang.wu@intel.com>
cc:     Peng DongX <dongx.peng@intel.com>
cc:     Liu Jingqi <jingqi.liu@intel.com>
cc:     Dong Eddie <eddie.dong@intel.com>
CC:     Dave Hansen <dave.hansen@intel.com>
cc:     Huang Ying <ying.huang@intel.com>
CC:     Brendan Gregg <bgregg@netflix.com>
cc:     kvm@vger.kernel.org
Cc:     LKML <linux-kernel@vger.kernel.org>
Subject: [RFC][PATCH 5/5] [PATCH 5/5] kvm-ept-idle: enable module
References: <20180901112818.126790961@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Disposition: inline; filename=0005-kvm-ept-idle-enable-module.patch
Content-Length: 1444
Lines:  47
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---
 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
-- 
2.15.0