1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2011 NetApp, Inc. 5 * Copyright (c) 2018 Joyent, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef __FreeBSD__ 34 #include <errno.h> 35 #include <stdlib.h> 36 #include <stdio.h> 37 #include <strings.h> 38 #endif 39 __FBSDID("$FreeBSD$"); 40 41 #include <stdlib.h> 42 43 #include "config.h" 44 #include "pci_emul.h" 45 46 #ifndef __FreeBSD__ 47 static struct pci_hostbridge_model { 48 const char *phm_model; 49 uint16_t phm_vendor; 50 uint16_t phm_device; 51 } pci_hb_models[] = { 52 { "amd", 0x1022, 0x7432 }, /* AMD/made-up */ 53 { "netapp", 0x1275, 0x1275 }, /* NetApp/NetApp */ 54 { "i440fx", 0x8086, 0x1237 }, /* Intel/82441 */ 55 { "q35", 0x8086, 0x29b0 }, /* Intel/Q35 HB */ 56 }; 57 58 #define NUM_HB_MODELS (sizeof (pci_hb_models) / sizeof (pci_hb_models[0])) 59 #endif 60 61 static int 62 pci_hostbridge_init(struct vmctx *ctx, struct pci_devinst *pi, nvlist_t *nvl) 63 { 64 const char *value; 65 u_int vendor, device; 66 67 #ifdef __FreeBSD__ 68 vendor = 0x1275; /* NetApp */ 69 device = 0x1275; /* NetApp */ 70 #else 71 vendor = device = 0; 72 #endif 73 74 value = get_config_value_node(nvl, "vendor"); 75 if (value != NULL) 76 vendor = strtol(value, NULL, 0); 77 value = get_config_value_node(nvl, "devid"); 78 if (value != NULL) 79 device = strtol(value, NULL, 0); 80 81 #ifndef __FreeBSD__ 82 const char *model = get_config_value_node(nvl, "model"); 83 84 if (model != NULL && (vendor != 0 || device != 0)) { 85 fprintf(stderr, "pci_hostbridge: cannot specify model " 86 "and vendor/device"); 87 return (-1); 88 } else if ((vendor != 0 && device == 0) || 89 (vendor == 0 && device != 0)) { 90 fprintf(stderr, "pci_hostbridge: must specify both vendor and" 91 "device for custom hostbridge"); 92 return (-1); 93 } 94 if (model == NULL && vendor == 0 && device == 0) 95 model = "netapp"; 96 97 if (model != NULL) { 98 for (uint_t i = 0; i < NUM_HB_MODELS; i++) { 99 if (strcmp(model, pci_hb_models[i].phm_model) != 0) 100 continue; 101 102 /* found a model match */ 103 vendor = pci_hb_models[i].phm_vendor; 104 device = pci_hb_models[i].phm_device; 105 break; 106 } 107 if (vendor == 0) { 108 fprintf(stderr, "pci_hostbridge: invalid model '%s'", 109 model); 110 return (-1); 111 } 112 } 113 #endif /* !__FreeBSD__ */ 114 115 /* config space */ 116 pci_set_cfgdata16(pi, PCIR_VENDOR, vendor); 117 pci_set_cfgdata16(pi, PCIR_DEVICE, device); 118 pci_set_cfgdata8(pi, PCIR_HDRTYPE, PCIM_HDRTYPE_NORMAL); 119 pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_BRIDGE); 120 pci_set_cfgdata8(pi, PCIR_SUBCLASS, PCIS_BRIDGE_HOST); 121 122 pci_emul_add_pciecap(pi, PCIEM_TYPE_ROOT_PORT); 123 124 return (0); 125 } 126 127 static int 128 pci_amd_hostbridge_legacy_config(nvlist_t *nvl, const char *opts) 129 { 130 131 set_config_value_node(nvl, "vendor", "0x1022"); /* AMD */ 132 set_config_value_node(nvl, "devid", "0x7432"); /* made up */ 133 134 return (0); 135 } 136 137 struct pci_devemu pci_de_amd_hostbridge = { 138 .pe_emu = "amd_hostbridge", 139 .pe_legacy_config = pci_amd_hostbridge_legacy_config, 140 .pe_alias = "hostbridge", 141 }; 142 PCI_EMUL_SET(pci_de_amd_hostbridge); 143 144 struct pci_devemu pci_de_hostbridge = { 145 .pe_emu = "hostbridge", 146 .pe_init = pci_hostbridge_init, 147 }; 148 PCI_EMUL_SET(pci_de_hostbridge); 149