diff --git a/vfio-Change-default-dirty-pages-tracking-behavior-du.patch b/vfio-Change-default-dirty-pages-tracking-behavior-du.patch
new file mode 100644
index 0000000..d34f054
--- /dev/null
+++ b/vfio-Change-default-dirty-pages-tracking-behavior-du.patch
@@ -0,0 +1,87 @@
+From 69d1cc17c0a77dbd0d8e811cfaa899b01bf2e5bc Mon Sep 17 00:00:00 2001
+From: Kirti Wankhede <kwankhede@nvidia.com>
+Date: Mon, 23 Nov 2020 19:53:19 +0530
+Subject: [PATCH] vfio: Change default dirty pages tracking behavior during
+ migration
+
+By default dirty pages tracking is enabled during iterative phase
+(pre-copy phase).
+Added per device opt-out option 'x-pre-copy-dirty-page-tracking' to
+disable dirty pages tracking during iterative phase. If the option
+'x-pre-copy-dirty-page-tracking=off' is set for any VFIO device, dirty
+pages tracking during iterative phase will be disabled.
+
+Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
+Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
+Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
+---
+ hw/vfio/common.c              | 11 +++++++----
+ hw/vfio/pci.c                 |  3 +++
+ include/hw/vfio/vfio-common.h |  1 +
+ 3 files changed, 11 insertions(+), 4 deletions(-)
+
+diff --git a/hw/vfio/common.c b/hw/vfio/common.c
+index a86a4c4506..d9cc3509ef 100644
+--- a/hw/vfio/common.c
++++ b/hw/vfio/common.c
+@@ -310,7 +310,7 @@ bool vfio_mig_active(void)
+     return true;
+ }
+ 
+-static bool vfio_devices_all_stopped_and_saving(VFIOContainer *container)
++static bool vfio_devices_all_saving(VFIOContainer *container)
+ {
+     VFIOGroup *group;
+     VFIODevice *vbasedev;
+@@ -328,8 +328,11 @@ static bool vfio_devices_all_stopped_and_saving(VFIOContainer *container)
+                 return false;
+             }
+ 
+-            if ((migration->device_state & VFIO_DEVICE_STATE_SAVING) &&
+-                !(migration->device_state & VFIO_DEVICE_STATE_RUNNING)) {
++            if (migration->device_state & VFIO_DEVICE_STATE_SAVING) {
++                if ((vbasedev->pre_copy_dirty_page_tracking == ON_OFF_AUTO_OFF)
++                    && (migration->device_state & VFIO_DEVICE_STATE_RUNNING)) {
++                        return false;
++                }
+                 continue;
+             } else {
+                 return false;
+@@ -1088,7 +1091,7 @@ static void vfio_listerner_log_sync(MemoryListener *listener,
+         return;
+     }
+ 
+-    if (vfio_devices_all_stopped_and_saving(container)) {
++    if (vfio_devices_all_saving(container)) {
+         vfio_sync_dirty_bitmap(container, section);
+     }
+ }
+diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
+index 2795b8bd12..3641ad0c5c 100644
+--- a/hw/vfio/pci.c
++++ b/hw/vfio/pci.c
+@@ -3180,6 +3180,9 @@ static void vfio_instance_init(Object *obj)
+ static Property vfio_pci_dev_properties[] = {
+     DEFINE_PROP_PCI_HOST_DEVADDR("host", VFIOPCIDevice, host),
+     DEFINE_PROP_STRING("sysfsdev", VFIOPCIDevice, vbasedev.sysfsdev),
++    DEFINE_PROP_ON_OFF_AUTO("x-pre-copy-dirty-page-tracking", VFIOPCIDevice,
++                            vbasedev.pre_copy_dirty_page_tracking,
++                            ON_OFF_AUTO_ON),
+     DEFINE_PROP_ON_OFF_AUTO("display", VFIOPCIDevice,
+                             display, ON_OFF_AUTO_OFF),
+     DEFINE_PROP_UINT32("xres", VFIOPCIDevice, display_xres, 0),
+diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
+index 7398631d4c..475aa9fb40 100644
+--- a/include/hw/vfio/vfio-common.h
++++ b/include/hw/vfio/vfio-common.h
+@@ -130,6 +130,7 @@ typedef struct VFIODevice {
+     unsigned int flags;
+     VFIOMigration *migration;
+     Error *migration_blocker;
++    OnOffAuto pre_copy_dirty_page_tracking;
+ } VFIODevice;
+ 
+ struct VFIODeviceOps {
+-- 
+2.27.0
+