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-rw-r--r--hw/vfio/common.c11
-rw-r--r--hw/vfio/migration.c2
-rw-r--r--hw/vfio/pci.c5
3 files changed, 13 insertions, 5 deletions
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index c1fdbf17f2..6ff1daa763 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -311,7 +311,7 @@ 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;
@@ -329,8 +329,11 @@ 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;
@@ -1125,7 +1128,7 @@ 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/migration.c b/hw/vfio/migration.c
index 55261562d4..00daa50ed8 100644
--- a/hw/vfio/migration.c
+++ b/hw/vfio/migration.c
@@ -882,7 +882,7 @@ int vfio_migration_probe(VFIODevice *vbasedev, Error **errp)
Error *local_err = NULL;
int ret = -ENOTSUP;
- if (!container->dirty_pages_supported) {
+ if (!vbasedev->enable_migration || !container->dirty_pages_supported) {
goto add_blocker;
}
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 58c0ce8971..51dc373695 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -3182,6 +3182,9 @@ 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),
@@ -3194,6 +3197,8 @@ static Property vfio_pci_dev_properties[] = {
VFIO_FEATURE_ENABLE_REQ_BIT, true),
DEFINE_PROP_BIT("x-igd-opregion", VFIOPCIDevice, features,
VFIO_FEATURE_ENABLE_IGD_OPREGION_BIT, false),
+ DEFINE_PROP_BOOL("x-enable-migration", VFIOPCIDevice,
+ vbasedev.enable_migration, false),
DEFINE_PROP_BOOL("x-no-mmap", VFIOPCIDevice, vbasedev.no_mmap, false),
DEFINE_PROP_BOOL("x-balloon-allowed", VFIOPCIDevice,
vbasedev.ram_block_discard_allowed, false),