freebsd-dev/usr.sbin/bhyve/pci_hostbridge.c
Neel Natu 74f80b236d Advertise PCI-E capability in the hostbridge device presented to the guest.
FreeBSD wants to see this capability in at least one device in the PCI
hierarchy before it allows use of MSI or MSI-X.

Obtained from:	NetApp
2013-02-15 18:41:36 +00:00

55 lines
2.0 KiB
C

/*-
* Copyright (c) 2011 NetApp, Inc.
* 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 NETAPP, INC ``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 NETAPP, INC 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.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "pci_emul.h"
static int
pci_hostbridge_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
{
/* config space */
pci_set_cfgdata16(pi, PCIR_VENDOR, 0x1275); /* NetApp */
pci_set_cfgdata16(pi, PCIR_DEVICE, 0x1275); /* NetApp */
pci_set_cfgdata8(pi, PCIR_HDRTYPE, PCIM_HDRTYPE_BRIDGE);
pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_BRIDGE);
pci_set_cfgdata8(pi, PCIR_SUBCLASS, PCIS_BRIDGE_HOST);
pci_emul_add_pciecap(pi, PCIEM_TYPE_ROOT_PORT);
return (0);
}
struct pci_devemu pci_de_hostbridge = {
.pe_emu = "hostbridge",
.pe_init = pci_hostbridge_init,
};
PCI_EMUL_SET(pci_de_hostbridge);