12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091 |
- /*
- * 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/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"
- void
- xen_pci_enable_msi_method(device_t dev, device_t child, uint64_t address,
- uint16_t data)
- {
- struct pci_devinfo *dinfo = device_get_ivars(child);
- struct pcicfg_msi *msi = &dinfo->cfg.msi;
- /* Enable MSI in the control register. */
- msi->msi_ctrl |= PCIM_MSICTRL_MSI_ENABLE;
- pci_write_config(child, msi->msi_location + PCIR_MSI_CTRL,
- msi->msi_ctrl, 2);
- }
- void
- xen_pci_disable_msi_method(device_t dev, device_t child)
- {
- struct pci_devinfo *dinfo = device_get_ivars(child);
- struct pcicfg_msi *msi = &dinfo->cfg.msi;
- msi->msi_ctrl &= ~PCIM_MSICTRL_MSI_ENABLE;
- pci_write_config(child, msi->msi_location + PCIR_MSI_CTRL,
- msi->msi_ctrl, 2);
- }
- void
- xen_pci_child_added_method(device_t dev, device_t child)
- {
- struct pci_devinfo *dinfo;
- struct physdev_pci_device_add add_pci;
- int error;
- dinfo = device_get_ivars(child);
- KASSERT((dinfo != NULL),
- ("xen_pci_add_child_method called with NULL dinfo"));
- bzero(&add_pci, sizeof(add_pci));
- add_pci.seg = dinfo->cfg.domain;
- add_pci.bus = dinfo->cfg.bus;
- add_pci.devfn = (dinfo->cfg.slot << 3) | dinfo->cfg.func;
- error = HYPERVISOR_physdev_op(PHYSDEVOP_pci_device_add, &add_pci);
- if (error)
- panic("unable to add device bus %u devfn %u error: %d\n",
- add_pci.bus, add_pci.devfn, error);
- }
|