# HG changeset patch
# User kfraser@localhost.localdomain
# Date 1154527641 -3600
# Node ID ab86a6f3b5ee3be0550194362f64c3aebfecefbf
# Parent  08415dfc5918b43c79177237362237b2e3b6bca3
[PCI] Transparent virtualization for pcifront and pciback.
Signed-off-by: Tristan Gingold <tristan.gingold@bull.net>


diff -r 08415dfc5918 -r ab86a6f3b5ee linux-2.6-xen-sparse/drivers/xen/pciback/xenbus.c
--- a/linux-2.6-xen-sparse/drivers/xen/pciback/xenbus.c	Wed Aug 02 15:06:29 2006 +0100
+++ b/linux-2.6-xen-sparse/drivers/xen/pciback/xenbus.c	Wed Aug 02 15:07:21 2006 +0100
@@ -445,6 +445,9 @@ static struct xenbus_driver xenbus_pciba
 
 int __init pciback_xenbus_register(void)
 {
+	if (!is_running_on_xen())
+		return -ENODEV;
+
 	return xenbus_register_backend(&xenbus_pciback_driver);
 }
 
diff -r 08415dfc5918 -r ab86a6f3b5ee linux-2.6-xen-sparse/drivers/xen/pcifront/xenbus.c
--- a/linux-2.6-xen-sparse/drivers/xen/pcifront/xenbus.c	Wed Aug 02 15:06:29 2006 +0100
+++ b/linux-2.6-xen-sparse/drivers/xen/pcifront/xenbus.c	Wed Aug 02 15:07:21 2006 +0100
@@ -284,11 +284,10 @@ static struct xenbus_driver xenbus_pcifr
 
 static int __init pcifront_init(void)
 {
-	int err = 0;
+	if (!is_running_on_xen())
+		return -ENODEV;
 
-	err = xenbus_register_frontend(&xenbus_pcifront_driver);
-
-	return err;
+	return xenbus_register_frontend(&xenbus_pcifront_driver);
 }
 
 /* Initialize after the Xen PCI Frontend Stub is initialized */