qxl: stop dirty loging when not in vga mode

Tested with linux guest. Not sure how to check actual performance affect
of this. Checked with the previously send traceevent that the kvm ioctl
to start/stop dirty logging is being called.
(KVM_SET_USER_MEMORY_REGION).

Signed-off-by: Alon Levy <[email protected]>
Signed-off-by: Gerd Hoffmann <[email protected]>

diff --git a/hw/qxl.c b/hw/qxl.c
index 8777ba9615c3838e1284faa8e2ddd4b73016d3ff..5a7be60668415bc22812b7b8e705597586817167 100644 (file)
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -932,6 +932,7 @@ static void qxl_enter_vga_mode(PCIQXLDevice *d)
     qemu_spice_create_host_primary(&d->ssd);
     d->mode = QXL_MODE_VGA;
     memset(&d->ssd.dirty, 0, sizeof(d->ssd.dirty));
+    vga_dirty_log_start(&d->vga);
 }
 
 static void qxl_exit_vga_mode(PCIQXLDevice *d)
@@ -940,6 +941,7 @@ static void qxl_exit_vga_mode(PCIQXLDevice *d)
         return;
     }
     trace_qxl_exit_vga_mode(d->id);
+    vga_dirty_log_stop(&d->vga);
     qxl_destroy_primary(d, QXL_SYNC);
 }