--- zzzz-none-000/linux-3.10.107/drivers/input/misc/xen-kbdfront.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/input/misc/xen-kbdfront.c	2021-02-04 17:41:59.000000000 +0000
@@ -29,6 +29,7 @@
 #include <xen/interface/io/fbif.h>
 #include <xen/interface/io/kbdif.h>
 #include <xen/xenbus.h>
+#include <xen/platform_pci.h>
 
 struct xenkbd_info {
 	struct input_dev *kbd;
@@ -128,8 +129,14 @@
 
 	if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-abs-pointer", "%d", &abs) < 0)
 		abs = 0;
-	if (abs)
-		xenbus_printf(XBT_NIL, dev->nodename, "request-abs-pointer", "1");
+	if (abs) {
+		ret = xenbus_printf(XBT_NIL, dev->nodename,
+				    "request-abs-pointer", "1");
+		if (ret) {
+			pr_warning("xenkbd: can't request abs-pointer");
+			abs = 0;
+		}
+	}
 
 	/* keyboard */
 	kbd = input_allocate_device();
@@ -231,7 +238,7 @@
 	struct xenbus_transaction xbt;
 
 	ret = gnttab_grant_foreign_access(dev->otherend_id,
-	                                  virt_to_mfn(info->page), 0);
+	                                  virt_to_gfn(info->page), 0);
 	if (ret < 0)
 		return ret;
 	info->gref = ret;
@@ -254,7 +261,7 @@
 		goto error_irqh;
 	}
 	ret = xenbus_printf(xbt, dev->nodename, "page-ref", "%lu",
-			    virt_to_mfn(info->page));
+			    virt_to_gfn(info->page));
 	if (ret)
 		goto error_xenbus;
 	ret = xenbus_printf(xbt, dev->nodename, "page-gref", "%u", info->gref);
@@ -284,7 +291,7 @@
  error_evtchan:
 	xenbus_free_evtchn(dev, evtchn);
  error_grant:
-	gnttab_end_foreign_access_ref(info->gref, 0);
+	gnttab_end_foreign_access(info->gref, 0, 0UL);
 	info->gref = -1;
 	return ret;
 }
@@ -295,7 +302,7 @@
 		unbind_from_irqhandler(info->irq, info);
 	info->irq = -1;
 	if (info->gref >= 0)
-		gnttab_end_foreign_access_ref(info->gref, 0);
+		gnttab_end_foreign_access(info->gref, 0, 0UL);
 	info->gref = -1;
 }
 
@@ -364,12 +371,13 @@
 	{ "" }
 };
 
-static DEFINE_XENBUS_DRIVER(xenkbd, ,
+static struct xenbus_driver xenkbd_driver = {
+	.ids = xenkbd_ids,
 	.probe = xenkbd_probe,
 	.remove = xenkbd_remove,
 	.resume = xenkbd_resume,
 	.otherend_changed = xenkbd_backend_changed,
-);
+};
 
 static int __init xenkbd_init(void)
 {
@@ -380,6 +388,9 @@
 	if (xen_initial_domain())
 		return -ENODEV;
 
+	if (!xen_has_pv_devices())
+		return -ENODEV;
+
 	return xenbus_register_frontend(&xenkbd_driver);
 }