Index: xen-3.3.1-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
===================================================================
--- xen-3.3.1-testing.orig/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c	2009-01-05 13:27:56.000000000 -0700
+++ xen-3.3.1-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c	2009-02-24 12:09:53.000000000 -0700
@@ -296,6 +296,11 @@
 	platform_mmio = mmio_addr;
 	platform_mmiolen = mmio_len;
 
+	/*
+	 * Disconnect the emulated devices.
+	 */
+	outl(1, (ioaddr + 4));
+
 	ret = init_hypercall_stubs();
 	if (ret < 0)
 		goto out;