References: fate#311487

Provide a modalias entry in xen-plaform-pci.ko to allow early autoloading in
initrd based on /sys/class/dmi/id/modalias

Signed-off-by: Olaf Hering <olaf@aepfle.de>

---
 unmodified_drivers/linux-2.6/platform-pci/platform-pci.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

Index: xen-4.1.1-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
===================================================================
--- xen-4.1.1-testing.orig/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
+++ xen-4.1.1-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
@@ -27,6 +27,7 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/version.h>
+#include <linux/dmi.h>
 #include <linux/interrupt.h>
 #include <linux/vmalloc.h>
 #include <linux/mm.h>
@@ -480,6 +481,18 @@ static struct pci_device_id platform_pci
 
 MODULE_DEVICE_TABLE(pci, platform_pci_tbl);
 
+static const struct dmi_system_id platform_dmi_tbl[] = {
+	{
+		.ident = "Xen PV-on-HVM",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Xen"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "HVM domU"),
+		},
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(dmi, platform_dmi_tbl);
+
 static struct pci_driver platform_driver = {
 	name:     DRV_NAME,
 	probe:    platform_pci_init,