1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2011 NetApp, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30#include <err.h>
31#include <stdlib.h>
32
33#include "config.h"
34#include "pci_emul.h"
35
36static int
37pci_hostbridge_init(struct pci_devinst *pi, nvlist_t *nvl)
38{
39	const char *value;
40	u_int vendor, device;
41
42	vendor = 0x1275;	/* NetApp */
43	device = 0x1275;	/* NetApp */
44
45	value = get_config_value_node(nvl, "vendor");
46	if (value != NULL)
47		vendor = strtol(value, NULL, 0);
48	else
49		vendor = pci_config_read_reg(NULL, nvl, PCIR_VENDOR, 2, vendor);
50	value = get_config_value_node(nvl, "devid");
51	if (value != NULL)
52		device = strtol(value, NULL, 0);
53	else
54		device = pci_config_read_reg(NULL, nvl, PCIR_DEVICE, 2, device);
55
56	/* config space */
57	pci_set_cfgdata16(pi, PCIR_VENDOR, vendor);
58	pci_set_cfgdata16(pi, PCIR_DEVICE, device);
59	pci_set_cfgdata8(pi, PCIR_HDRTYPE, PCIM_HDRTYPE_NORMAL);
60	pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_BRIDGE);
61	pci_set_cfgdata8(pi, PCIR_SUBCLASS, PCIS_BRIDGE_HOST);
62
63	pci_emul_add_pciecap(pi, PCIEM_TYPE_ROOT_PORT);
64
65	return (0);
66}
67
68static int
69pci_amd_hostbridge_legacy_config(nvlist_t *nvl, const char *opts __unused)
70{
71	nvlist_t *pci_regs;
72
73	pci_regs = create_relative_config_node(nvl, "pcireg");
74	if (pci_regs == NULL) {
75		warnx("amd_hostbridge: failed to create pciregs node");
76		return (-1);
77	}
78
79	set_config_value_node(pci_regs, "vendor", "0x1022"); /* AMD */
80	set_config_value_node(pci_regs, "device", "0x7432"); /* made up */
81
82	return (0);
83}
84
85#ifdef BHYVE_SNAPSHOT
86static int
87pci_de_snapshot(struct vm_snapshot_meta *meta __unused)
88{
89	return (0);
90}
91#endif
92
93static const struct pci_devemu pci_de_amd_hostbridge = {
94	.pe_emu = "amd_hostbridge",
95	.pe_legacy_config = pci_amd_hostbridge_legacy_config,
96	.pe_alias = "hostbridge",
97};
98PCI_EMUL_SET(pci_de_amd_hostbridge);
99
100static const struct pci_devemu pci_de_hostbridge = {
101	.pe_emu = "hostbridge",
102	.pe_init = pci_hostbridge_init,
103#ifdef BHYVE_SNAPSHOT
104	.pe_snapshot =	pci_de_snapshot,
105#endif
106};
107PCI_EMUL_SET(pci_de_hostbridge);
108