Disable the emulated devices when we are loading PV drivers.

Signed-off-by: K. Y. Srinivasan <ksrinivasan@novell.com>

Index: xen-unstable/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
===================================================================
--- xen-unstable.orig/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
+++ xen-unstable/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
@@ -247,6 +247,11 @@ static int __devinit platform_pci_init(s
 	platform_mmio = mmio_addr;
 	platform_mmiolen = mmio_len;
 
+	/*
+	 * Disconnect the emulated devices.
+	 */
+	outl(1, (ioaddr + 4));
+
 	ret = get_hypercall_stubs();
 	if (ret < 0)
 		goto out;