1/*
2 * Copyright (c) 2014 Roger Pau Monné <roger.pau@citrix.com>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bus.h>
33#include <sys/kernel.h>
34#include <sys/malloc.h>
35#include <sys/module.h>
36
37#include <sys/pciio.h>
38#include <dev/pci/pcireg.h>
39#include <dev/pci/pcivar.h>
40#include <dev/pci/pci_private.h>
41
42#include <xen/xen-os.h>
43#include <xen/hypervisor.h>
44#include <xen/xen_pci.h>
45
46#include "pcib_if.h"
47#include "pci_if.h"
48
49static int
50xen_pci_probe(device_t dev)
51{
52
53	if (!xen_pv_domain())
54		return (ENXIO);
55
56	device_set_desc(dev, "Xen PCI bus");
57
58	return (BUS_PROBE_DEFAULT);
59}
60
61static device_method_t xen_pci_methods[] = {
62	/* Device interface */
63	DEVMETHOD(device_probe,		xen_pci_probe),
64
65	/* PCI interface overwrites */
66	DEVMETHOD(pci_enable_msi,	xen_pci_enable_msi_method),
67	DEVMETHOD(pci_disable_msi,	xen_pci_disable_msi_method),
68	DEVMETHOD(pci_child_added,	xen_pci_child_added_method),
69
70	DEVMETHOD_END
71};
72
73static devclass_t pci_devclass;
74
75DEFINE_CLASS_1(pci, xen_pci_driver, xen_pci_methods, sizeof(struct pci_softc),
76    pci_driver);
77DRIVER_MODULE(xen_pci, pcib, xen_pci_driver, pci_devclass, 0, 0);
78MODULE_DEPEND(xen_pci, pci, 1, 1, 1);
79MODULE_VERSION(xen_pci, 1);
80