diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index 50af91ebd07522e84461f3eecbb5c84f431da61e..07c2cd43109c1ea0332cfaefa0bdb30ceb801db3 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -165,6 +165,7 @@ config XEN_KBDDEV_FRONTEND
 	tristate "Xen virtual keyboard and mouse support"
 	depends on XEN_FBDEV_FRONTEND
 	default y
+	select XEN_XENBUS_FRONTEND
 	help
 	  This driver implements the front-end of the Xen virtual
 	  keyboard and mouse device driver.  It communicates with a back-end
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 6b89eb55ed327d56bf16e02d58db2aebac611d67..e9f193e6b27e2dea82849740d1947bd506f7266d 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2066,6 +2066,7 @@ config XEN_FBDEV_FRONTEND
 	select FB_SYS_IMAGEBLIT
 	select FB_SYS_FOPS
 	select FB_DEFERRED_IO
+	select XEN_XENBUS_FRONTEND
 	default y
 	help
 	  This driver implements the front-end of the Xen virtual
diff --git a/drivers/video/broadsheetfb.c b/drivers/video/broadsheetfb.c
index 509cb92e873105b8874ea08cdacca171636c4651..df9ccb901d86f442d7359294ab01b55486f4be54 100644
--- a/drivers/video/broadsheetfb.c
+++ b/drivers/video/broadsheetfb.c
@@ -470,7 +470,7 @@ static int __devinit broadsheetfb_probe(struct platform_device *dev)
 	par->read_reg = broadsheet_read_reg;
 	init_waitqueue_head(&par->waitq);
 
-	info->flags = FBINFO_FLAG_DEFAULT;
+	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
 
 	info->fbdefio = &broadsheetfb_defio;
 	fb_deferred_io_init(info);
diff --git a/drivers/video/fb_defio.c b/drivers/video/fb_defio.c
index e59c083208866611472f4f570485a798d930c201..44ce908a478b5f4d4ef116e6e92c93172e44b760 100644
--- a/drivers/video/fb_defio.c
+++ b/drivers/video/fb_defio.c
@@ -144,7 +144,9 @@ static const struct address_space_operations fb_deferred_io_aops = {
 static int fb_deferred_io_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	vma->vm_ops = &fb_deferred_io_vm_ops;
-	vma->vm_flags |= ( VM_IO | VM_RESERVED | VM_DONTEXPAND );
+	vma->vm_flags |= ( VM_RESERVED | VM_DONTEXPAND );
+	if (!(info->flags & FBINFO_VIRTFB))
+		vma->vm_flags |= VM_IO;
 	vma->vm_private_data = info;
 	return 0;
 }
diff --git a/drivers/video/hecubafb.c b/drivers/video/hecubafb.c
index 0b4bffbe67c812ff71fcc385efdbfc8acde82af4..f9d77adf035d92a027ef29a2d376eb2e237b23a9 100644
--- a/drivers/video/hecubafb.c
+++ b/drivers/video/hecubafb.c
@@ -253,7 +253,7 @@ static int __devinit hecubafb_probe(struct platform_device *dev)
 	par->send_command = apollo_send_command;
 	par->send_data = apollo_send_data;
 
-	info->flags = FBINFO_FLAG_DEFAULT;
+	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
 
 	info->fbdefio = &hecubafb_defio;
 	fb_deferred_io_init(info);
diff --git a/drivers/video/metronomefb.c b/drivers/video/metronomefb.c
index df1f757a6161cde2f7d189be4501567af96fd6f2..661bfd20d1943e805dd6aa2865d4c2f361a38eb1 100644
--- a/drivers/video/metronomefb.c
+++ b/drivers/video/metronomefb.c
@@ -700,7 +700,7 @@ static int __devinit metronomefb_probe(struct platform_device *dev)
 	if (retval < 0)
 		goto err_free_irq;
 
-	info->flags = FBINFO_FLAG_DEFAULT;
+	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
 
 	info->fbdefio = &metronomefb_defio;
 	fb_deferred_io_init(info);
diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c
index 54cd916101744ff7c5c1c21d68d4d4f6b028f066..91a68e9eb66d7ff7ad8fd866d1266bd2ebf6dd10 100644
--- a/drivers/video/xen-fbfront.c
+++ b/drivers/video/xen-fbfront.c
@@ -440,7 +440,7 @@ static int __devinit xenfb_probe(struct xenbus_device *dev,
 	fb_info->fix.type = FB_TYPE_PACKED_PIXELS;
 	fb_info->fix.accel = FB_ACCEL_NONE;
 
-	fb_info->flags = FBINFO_FLAG_DEFAULT;
+	fb_info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
 
 	ret = fb_alloc_cmap(&fb_info->cmap, 256, 0);
 	if (ret < 0) {
diff --git a/include/linux/fb.h b/include/linux/fb.h
index de9c722e7b90e0827bb39a9ce3c26eb641914599..369767bd873efe5bafedb6b5936982952848a914 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -763,6 +763,7 @@ struct fb_tile_ops {
 	 *  takes over; acceleration engine should be in a quiescent state */
 
 /* hints */
+#define FBINFO_VIRTFB		0x0004 /* FB is System RAM, not device. */
 #define FBINFO_PARTIAL_PAN_OK	0x0040 /* otw use pan only for double-buffering */
 #define FBINFO_READS_FAST	0x0080 /* soft-copy faster than rendering */