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
36 static int
pci_hostbridge_init(struct pci_devinst * pi,nvlist_t * nvl)37 pci_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
68 static int
pci_amd_hostbridge_legacy_config(nvlist_t * nvl,const char * opts __unused)69 pci_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
86 static int
pci_de_snapshot(struct vm_snapshot_meta * meta __unused)87 pci_de_snapshot(struct vm_snapshot_meta *meta __unused)
88 {
89 return (0);
90 }
91 #endif
92
93 static 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 };
98 PCI_EMUL_SET(pci_de_amd_hostbridge);
99
100 static 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 };
107 PCI_EMUL_SET(pci_de_hostbridge);
108