From bb0990d1740f6dced5b50a923677034c9399c213 Mon Sep 17 00:00:00 2001 From: Kirti Wankhede Date: Mon, 23 Nov 2020 19:53:19 +0530 Subject: 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 Signed-off-by: Alex Williamson --- hw/vfio/pci.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'hw/vfio/pci.c') diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 1349b900e5..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), -- cgit 1.4.1