xref: /freebsd/usr.sbin/bhyve/pci_hostbridge.c (revision c7046f76c2c027b00c0e6ba57cfd28f1a78f5e23)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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  * $FreeBSD$
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include <stdlib.h>
35 
36 #include "config.h"
37 #include "pci_emul.h"
38 
39 static int
40 pci_hostbridge_init(struct vmctx *ctx, struct pci_devinst *pi, nvlist_t *nvl)
41 {
42 	const char *value;
43 	u_int vendor, device;
44 
45 	vendor = 0x1275;	/* NetApp */
46 	device = 0x1275;	/* NetApp */
47 
48 	value = get_config_value_node(nvl, "vendor");
49 	if (value != NULL)
50 		vendor = strtol(value, NULL, 0);
51 	value = get_config_value_node(nvl, "devid");
52 	if (value != NULL)
53 		device = strtol(value, NULL, 0);
54 
55 	/* config space */
56 	pci_set_cfgdata16(pi, PCIR_VENDOR, vendor);
57 	pci_set_cfgdata16(pi, PCIR_DEVICE, device);
58 	pci_set_cfgdata8(pi, PCIR_HDRTYPE, PCIM_HDRTYPE_NORMAL);
59 	pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_BRIDGE);
60 	pci_set_cfgdata8(pi, PCIR_SUBCLASS, PCIS_BRIDGE_HOST);
61 
62 	pci_emul_add_pciecap(pi, PCIEM_TYPE_ROOT_PORT);
63 
64 	return (0);
65 }
66 
67 static int
68 pci_amd_hostbridge_legacy_config(nvlist_t *nvl, const char *opts)
69 {
70 
71 	set_config_value_node(nvl, "vendor", "0x1022");	/* AMD */
72 	set_config_value_node(nvl, "devid", "0x7432");	/* made up */
73 
74 	return (0);
75 }
76 
77 static const struct pci_devemu pci_de_amd_hostbridge = {
78 	.pe_emu = "amd_hostbridge",
79 	.pe_legacy_config = pci_amd_hostbridge_legacy_config,
80 	.pe_alias = "hostbridge",
81 };
82 PCI_EMUL_SET(pci_de_amd_hostbridge);
83 
84 static const struct pci_devemu pci_de_hostbridge = {
85 	.pe_emu = "hostbridge",
86 	.pe_init = pci_hostbridge_init,
87 };
88 PCI_EMUL_SET(pci_de_hostbridge);
89