--- drivers/staging/hv/vmbus_drv.c

+++ drivers/staging/hv/vmbus_drv.c

@@ -24,6 +24,8 @@

#include <linux/irq.h>

#include <linux/interrupt.h>

#include <linux/sysctl.h>

+#include <linux/pci.h>

+#include <linux/dmi.h>

#include "osd.h"

#include "logging.h"

#include "vmbus.h"

@@ -946,6 +948,19 @@ static irqreturn_t vmbus_isr(int irq, vo

}

}

+static struct dmi_system_id __initdata microsoft_hv_dmi_table[] = {

+ {

+ .ident = "Hyper-V",

+ .matches = {

+ DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),

+ DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),

+ DMI_MATCH(DMI_BOARD_NAME, "Virtual Machine"),

+ },

+ },

+ { },

+};

+MODULE_DEVICE_TABLE(dmi, microsoft_hv_dmi_table);

+

static int __init vmbus_init(void)

{

int ret = 0;

@@ -957,6 +972,9 @@ static int __init vmbus_init(void)

vmbus_loglevel, HIWORD(vmbus_loglevel), LOWORD(vmbus_loglevel));

/* Todo: it is used for loglevel, to be ported to new kernel. */

+ if (!dmi_check_system(microsoft_hv_dmi_table))

+ return -ENODEV;

+

ret = vmbus_bus_init(VmbusInitialize);

DPRINT_EXIT(VMBUS_DRV);

@@ -973,6 +991,18 @@ static void __exit vmbus_exit(void)

return;

}

+/*

+ * We use a PCI table to determine if we should autoload this driver This is

+ * needed by distro tools to determine if the hyperv drivers should be

+ * installed and/or configured. We don't do anything else with the table, but

+ * it needs to be present.

+ */

+const static struct pci_device_id microsoft_hv_pci_table[] = {

+ { PCI_DEVICE(0x1414, 0x5353) }, /* VGA compatible controller */

+ { 0 }

+};

+MODULE_DEVICE_TABLE(pci, microsoft_hv_pci_table);

+

MODULE_LICENSE("GPL");

module_param(vmbus_irq, int, S_IRUGO);

module_param(vmbus_loglevel, int, S_IRUGO);