freebsd-dev/sys/dev/xen/pci/xen_pci.c
2015-01-02 08:57:36 +00:00

80 lines
2.5 KiB
C

/*
* Copyright (c) 2014 Roger Pau Monné <roger.pau@citrix.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/pciio.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pci_private.h>
#include <xen/xen-os.h>
#include <xen/hypervisor.h>
#include <xen/xen_pci.h>
#include "pcib_if.h"
#include "pci_if.h"
static int
xen_pci_probe(device_t dev)
{
if (!xen_pv_domain())
return (ENXIO);
device_set_desc(dev, "Xen PCI bus");
return (BUS_PROBE_DEFAULT);
}
static device_method_t xen_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, xen_pci_probe),
/* PCI interface overwrites */
DEVMETHOD(pci_enable_msi, xen_pci_enable_msi_method),
DEVMETHOD(pci_disable_msi, xen_pci_disable_msi_method),
DEVMETHOD(pci_child_added, xen_pci_child_added_method),
DEVMETHOD_END
};
static devclass_t pci_devclass;
DEFINE_CLASS_1(pci, xen_pci_driver, xen_pci_methods, sizeof(struct pci_softc),
pci_driver);
DRIVER_MODULE(xen_pci, pcib, xen_pci_driver, pci_devclass, 0, 0);
MODULE_DEPEND(xen_pci, pci, 1, 1, 1);
MODULE_VERSION(xen_pci, 1);