autoconf.c revision 1.2.2.2
1 1.2.2.2 joerg /* $NetBSD: autoconf.c,v 1.2.2.2 2007/11/27 19:36:17 joerg Exp $ */ 2 1.2.2.2 joerg /* NetBSD: autoconf.c,v 1.75 2003/12/30 12:33:22 pk Exp */ 3 1.2.2.2 joerg 4 1.2.2.2 joerg /*- 5 1.2.2.2 joerg * Copyright (c) 1990 The Regents of the University of California. 6 1.2.2.2 joerg * All rights reserved. 7 1.2.2.2 joerg * 8 1.2.2.2 joerg * This code is derived from software contributed to Berkeley by 9 1.2.2.2 joerg * William Jolitz. 10 1.2.2.2 joerg * 11 1.2.2.2 joerg * Redistribution and use in source and binary forms, with or without 12 1.2.2.2 joerg * modification, are permitted provided that the following conditions 13 1.2.2.2 joerg * are met: 14 1.2.2.2 joerg * 1. Redistributions of source code must retain the above copyright 15 1.2.2.2 joerg * notice, this list of conditions and the following disclaimer. 16 1.2.2.2 joerg * 2. Redistributions in binary form must reproduce the above copyright 17 1.2.2.2 joerg * notice, this list of conditions and the following disclaimer in the 18 1.2.2.2 joerg * documentation and/or other materials provided with the distribution. 19 1.2.2.2 joerg * 3. Neither the name of the University nor the names of its contributors 20 1.2.2.2 joerg * may be used to endorse or promote products derived from this software 21 1.2.2.2 joerg * without specific prior written permission. 22 1.2.2.2 joerg * 23 1.2.2.2 joerg * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 1.2.2.2 joerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 1.2.2.2 joerg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 1.2.2.2 joerg * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 1.2.2.2 joerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 1.2.2.2 joerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 1.2.2.2 joerg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.2.2.2 joerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 1.2.2.2 joerg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 1.2.2.2 joerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 1.2.2.2 joerg * SUCH DAMAGE. 34 1.2.2.2 joerg * 35 1.2.2.2 joerg * @(#)autoconf.c 7.1 (Berkeley) 5/9/91 36 1.2.2.2 joerg */ 37 1.2.2.2 joerg 38 1.2.2.2 joerg /* 39 1.2.2.2 joerg * Setup the system to run on the current machine. 40 1.2.2.2 joerg * 41 1.2.2.2 joerg * Configure() is called at boot time and initializes the vba 42 1.2.2.2 joerg * device tables and the memory controller monitoring. Available 43 1.2.2.2 joerg * devices are determined (from possibilities mentioned in ioconf.c), 44 1.2.2.2 joerg * and the drivers are initialized. 45 1.2.2.2 joerg */ 46 1.2.2.2 joerg 47 1.2.2.2 joerg #include <sys/cdefs.h> 48 1.2.2.2 joerg __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.2.2.2 2007/11/27 19:36:17 joerg Exp $"); 49 1.2.2.2 joerg 50 1.2.2.2 joerg #include "opt_xen.h" 51 1.2.2.2 joerg #include "opt_compat_oldboot.h" 52 1.2.2.2 joerg #include "opt_multiprocessor.h" 53 1.2.2.2 joerg #include "opt_nfs_boot.h" 54 1.2.2.2 joerg #include "xennet_hypervisor.h" 55 1.2.2.2 joerg #include "xennet_xenbus.h" 56 1.2.2.2 joerg 57 1.2.2.2 joerg #include <sys/param.h> 58 1.2.2.2 joerg #include <sys/systm.h> 59 1.2.2.2 joerg #include <sys/buf.h> 60 1.2.2.2 joerg #include <sys/disklabel.h> 61 1.2.2.2 joerg #include <sys/disk.h> 62 1.2.2.2 joerg #include <sys/conf.h> 63 1.2.2.2 joerg #ifdef COMPAT_OLDBOOT 64 1.2.2.2 joerg #include <sys/reboot.h> 65 1.2.2.2 joerg #endif 66 1.2.2.2 joerg #include <sys/device.h> 67 1.2.2.2 joerg #include <sys/malloc.h> 68 1.2.2.2 joerg #include <sys/vnode.h> 69 1.2.2.2 joerg #include <sys/fcntl.h> 70 1.2.2.2 joerg #include <sys/dkio.h> 71 1.2.2.2 joerg #include <sys/proc.h> 72 1.2.2.2 joerg #include <sys/user.h> 73 1.2.2.2 joerg #include <sys/kauth.h> 74 1.2.2.2 joerg 75 1.2.2.2 joerg #ifdef NFS_BOOT_BOOTSTATIC 76 1.2.2.2 joerg #include <net/if.h> 77 1.2.2.2 joerg #include <net/if_ether.h> 78 1.2.2.2 joerg #include <netinet/in.h> 79 1.2.2.2 joerg #include <nfs/rpcv2.h> 80 1.2.2.2 joerg #include <nfs/nfsproto.h> 81 1.2.2.2 joerg #include <nfs/nfs.h> 82 1.2.2.2 joerg #include <nfs/nfsmount.h> 83 1.2.2.2 joerg #include <nfs/nfsdiskless.h> 84 1.2.2.2 joerg #include <xen/if_xennetvar.h> 85 1.2.2.2 joerg #endif 86 1.2.2.2 joerg 87 1.2.2.2 joerg #include <machine/pte.h> 88 1.2.2.2 joerg #include <machine/cpu.h> 89 1.2.2.2 joerg #include <machine/gdt.h> 90 1.2.2.2 joerg #include <machine/pcb.h> 91 1.2.2.2 joerg #include <machine/bootinfo.h> 92 1.2.2.2 joerg 93 1.2.2.2 joerg static void findroot(void); 94 1.2.2.2 joerg static int is_valid_disk(struct device *); 95 1.2.2.2 joerg static void handle_wedges(struct device *, int); 96 1.2.2.2 joerg 97 1.2.2.2 joerg struct disklist *x86_alldisks; 98 1.2.2.2 joerg int x86_ndisks; 99 1.2.2.2 joerg 100 1.2.2.2 joerg #include "bios32.h" 101 1.2.2.2 joerg #if NBIOS32 > 0 102 1.2.2.2 joerg #include <machine/bios32.h> 103 1.2.2.2 joerg #endif 104 1.2.2.2 joerg 105 1.2.2.2 joerg #include "opt_pcibios.h" 106 1.2.2.2 joerg #ifdef PCIBIOS 107 1.2.2.2 joerg #include <dev/pci/pcireg.h> 108 1.2.2.2 joerg #include <dev/pci/pcivar.h> 109 1.2.2.2 joerg #include <i386/pci/pcibios.h> 110 1.2.2.2 joerg #endif 111 1.2.2.2 joerg 112 1.2.2.2 joerg #include "opt_kvm86.h" 113 1.2.2.2 joerg #ifdef KVM86 114 1.2.2.2 joerg #include <machine/kvm86.h> 115 1.2.2.2 joerg #endif 116 1.2.2.2 joerg 117 1.2.2.2 joerg /* 118 1.2.2.2 joerg * Determine i/o configuration for a machine. 119 1.2.2.2 joerg */ 120 1.2.2.2 joerg void 121 1.2.2.2 joerg cpu_configure(void) 122 1.2.2.2 joerg { 123 1.2.2.2 joerg 124 1.2.2.2 joerg startrtclock(); 125 1.2.2.2 joerg 126 1.2.2.2 joerg #if NBIOS32 > 0 && defined(DOM0OPS) 127 1.2.2.2 joerg #ifdef XEN3 128 1.2.2.2 joerg if (xen_start_info.flags & SIF_INITDOMAIN) 129 1.2.2.2 joerg #endif 130 1.2.2.2 joerg bios32_init(); 131 1.2.2.2 joerg #endif /* NBIOS32 > 0 && DOM0OPS */ 132 1.2.2.2 joerg #ifdef PCIBIOS 133 1.2.2.2 joerg pcibios_init(); 134 1.2.2.2 joerg #endif 135 1.2.2.2 joerg 136 1.2.2.2 joerg #ifdef KVM86 137 1.2.2.2 joerg kvm86_init(); 138 1.2.2.2 joerg #endif 139 1.2.2.2 joerg 140 1.2.2.2 joerg if (config_rootfound("mainbus", NULL) == NULL) 141 1.2.2.2 joerg panic("configure: mainbus not configured"); 142 1.2.2.2 joerg 143 1.2.2.2 joerg #ifdef INTRDEBUG 144 1.2.2.2 joerg intr_printconfig(); 145 1.2.2.2 joerg #endif 146 1.2.2.2 joerg 147 1.2.2.2 joerg /* resync cr0 after FPU configuration */ 148 1.2.2.2 joerg lwp0.l_addr->u_pcb.pcb_cr0 = rcr0(); 149 1.2.2.2 joerg #ifdef MULTIPROCESSOR 150 1.2.2.2 joerg /* propagate this to the idle pcb's. */ 151 1.2.2.2 joerg cpu_init_idle_lwps(); 152 1.2.2.2 joerg #endif 153 1.2.2.2 joerg 154 1.2.2.2 joerg spl0(); 155 1.2.2.2 joerg } 156 1.2.2.2 joerg 157 1.2.2.2 joerg void 158 1.2.2.2 joerg cpu_rootconf(void) 159 1.2.2.2 joerg { 160 1.2.2.2 joerg findroot(); 161 1.2.2.2 joerg 162 1.2.2.2 joerg if (booted_wedge) { 163 1.2.2.2 joerg KASSERT(booted_device != NULL); 164 1.2.2.2 joerg printf("boot device: %s (%s)\n", 165 1.2.2.2 joerg booted_wedge->dv_xname, booted_device->dv_xname); 166 1.2.2.2 joerg setroot(booted_wedge, 0); 167 1.2.2.2 joerg } else { 168 1.2.2.2 joerg printf("boot device: %s\n", 169 1.2.2.2 joerg booted_device ? booted_device->dv_xname : "<unknown>"); 170 1.2.2.2 joerg setroot(booted_device, booted_partition); 171 1.2.2.2 joerg } 172 1.2.2.2 joerg } 173 1.2.2.2 joerg 174 1.2.2.2 joerg 175 1.2.2.2 joerg /* 176 1.2.2.2 joerg * Attempt to find the device from which we were booted. 177 1.2.2.2 joerg * If we can do so, and not instructed not to do so, 178 1.2.2.2 joerg * change rootdev to correspond to the load device. 179 1.2.2.2 joerg */ 180 1.2.2.2 joerg void 181 1.2.2.2 joerg findroot(void) 182 1.2.2.2 joerg { 183 1.2.2.2 joerg struct device *dv; 184 1.2.2.2 joerg union xen_cmdline_parseinfo xcp; 185 1.2.2.2 joerg 186 1.2.2.2 joerg if (booted_device) 187 1.2.2.2 joerg return; 188 1.2.2.2 joerg 189 1.2.2.2 joerg xen_parse_cmdline(XEN_PARSE_BOOTDEV, &xcp); 190 1.2.2.2 joerg 191 1.2.2.2 joerg TAILQ_FOREACH(dv, &alldevs, dv_list) { 192 1.2.2.2 joerg if (is_valid_disk(dv) == 0) 193 1.2.2.2 joerg continue; 194 1.2.2.2 joerg 195 1.2.2.2 joerg if (xcp.xcp_bootdev[0] == 0) { 196 1.2.2.2 joerg handle_wedges(dv, 0); 197 1.2.2.2 joerg break; 198 1.2.2.2 joerg } 199 1.2.2.2 joerg 200 1.2.2.2 joerg if (strncmp(xcp.xcp_bootdev, dv->dv_xname, 201 1.2.2.2 joerg strlen(dv->dv_xname))) 202 1.2.2.2 joerg continue; 203 1.2.2.2 joerg 204 1.2.2.2 joerg if (strlen(xcp.xcp_bootdev) > strlen(dv->dv_xname)) { 205 1.2.2.2 joerg booted_partition = toupper( 206 1.2.2.2 joerg xcp.xcp_bootdev[strlen(dv->dv_xname)]) - 'A'; 207 1.2.2.2 joerg } 208 1.2.2.2 joerg 209 1.2.2.2 joerg booted_device = dv; 210 1.2.2.2 joerg break; 211 1.2.2.2 joerg } 212 1.2.2.2 joerg } 213 1.2.2.2 joerg 214 1.2.2.2 joerg #include "pci.h" 215 1.2.2.2 joerg 216 1.2.2.2 joerg #include <dev/isa/isavar.h> 217 1.2.2.2 joerg #if NPCI > 0 218 1.2.2.2 joerg #include <dev/pci/pcivar.h> 219 1.2.2.2 joerg #endif 220 1.2.2.2 joerg 221 1.2.2.2 joerg 222 1.2.2.2 joerg #if defined(NFS_BOOT_BOOTSTATIC) && defined(DOM0OPS) 223 1.2.2.2 joerg static int 224 1.2.2.2 joerg dom0_bootstatic_callback(struct nfs_diskless *nd) 225 1.2.2.2 joerg { 226 1.2.2.2 joerg #if 0 227 1.2.2.2 joerg struct ifnet *ifp = nd->nd_ifp; 228 1.2.2.2 joerg #endif 229 1.2.2.2 joerg union xen_cmdline_parseinfo xcp; 230 1.2.2.2 joerg struct sockaddr_in *sin; 231 1.2.2.2 joerg 232 1.2.2.2 joerg memset(&xcp, 0, sizeof(xcp.xcp_netinfo)); 233 1.2.2.2 joerg xcp.xcp_netinfo.xi_ifno = 0; /* XXX first interface hardcoded */ 234 1.2.2.2 joerg xcp.xcp_netinfo.xi_root = nd->nd_root.ndm_host; 235 1.2.2.2 joerg xen_parse_cmdline(XEN_PARSE_NETINFO, &xcp); 236 1.2.2.2 joerg 237 1.2.2.2 joerg nd->nd_myip.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[0]); 238 1.2.2.2 joerg nd->nd_gwip.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[2]); 239 1.2.2.2 joerg nd->nd_mask.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[3]); 240 1.2.2.2 joerg 241 1.2.2.2 joerg sin = (struct sockaddr_in *) &nd->nd_root.ndm_saddr; 242 1.2.2.2 joerg memset((void *)sin, 0, sizeof(*sin)); 243 1.2.2.2 joerg sin->sin_len = sizeof(*sin); 244 1.2.2.2 joerg sin->sin_family = AF_INET; 245 1.2.2.2 joerg sin->sin_addr.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[1]); 246 1.2.2.2 joerg 247 1.2.2.2 joerg if (nd->nd_myip.s_addr == 0) 248 1.2.2.2 joerg return NFS_BOOTSTATIC_NOSTATIC; 249 1.2.2.2 joerg else 250 1.2.2.2 joerg return (NFS_BOOTSTATIC_HAS_MYIP|NFS_BOOTSTATIC_HAS_GWIP| 251 1.2.2.2 joerg NFS_BOOTSTATIC_HAS_MASK|NFS_BOOTSTATIC_HAS_SERVADDR| 252 1.2.2.2 joerg NFS_BOOTSTATIC_HAS_SERVER); 253 1.2.2.2 joerg } 254 1.2.2.2 joerg #endif 255 1.2.2.2 joerg 256 1.2.2.2 joerg void 257 1.2.2.2 joerg device_register(struct device *dev, void *aux) 258 1.2.2.2 joerg { 259 1.2.2.2 joerg /* 260 1.2.2.2 joerg * Handle network interfaces here, the attachment information is 261 1.2.2.2 joerg * not available driver independently later. 262 1.2.2.2 joerg * For disks, there is nothing useful available at attach time. 263 1.2.2.2 joerg */ 264 1.2.2.2 joerg #if NXENNET_HYPERVISOR > 0 || NXENNET_XENBUS > 0 || defined(DOM0OPS) 265 1.2.2.2 joerg if (device_class(dev) == DV_IFNET) { 266 1.2.2.2 joerg union xen_cmdline_parseinfo xcp; 267 1.2.2.2 joerg 268 1.2.2.2 joerg xen_parse_cmdline(XEN_PARSE_BOOTDEV, &xcp); 269 1.2.2.2 joerg if (strncmp(xcp.xcp_bootdev, dev->dv_xname, 16) == 0) { 270 1.2.2.2 joerg #ifdef NFS_BOOT_BOOTSTATIC 271 1.2.2.2 joerg #ifdef DOM0OPS 272 1.2.2.2 joerg if (xen_start_info.flags & SIF_PRIVILEGED) { 273 1.2.2.2 joerg nfs_bootstatic_callback = dom0_bootstatic_callback; 274 1.2.2.2 joerg } else 275 1.2.2.2 joerg #endif 276 1.2.2.2 joerg #if NXENNET_HYPERVISOR > 0 || NXENNET_XENBUS > 0 277 1.2.2.2 joerg nfs_bootstatic_callback = xennet_bootstatic_callback; 278 1.2.2.2 joerg #endif 279 1.2.2.2 joerg #endif 280 1.2.2.2 joerg goto found; 281 1.2.2.2 joerg } 282 1.2.2.2 joerg } 283 1.2.2.2 joerg #endif 284 1.2.2.2 joerg if (device_class(dev) == DV_IFNET) { 285 1.2.2.2 joerg struct btinfo_netif *bin = lookup_bootinfo(BTINFO_NETIF); 286 1.2.2.2 joerg if (bin == NULL) 287 1.2.2.2 joerg return; 288 1.2.2.2 joerg 289 1.2.2.2 joerg /* 290 1.2.2.2 joerg * We don't check the driver name against the device name 291 1.2.2.2 joerg * passed by the boot ROM. The ROM should stay usable 292 1.2.2.2 joerg * if the driver gets obsoleted. 293 1.2.2.2 joerg * The physical attachment information (checked below) 294 1.2.2.2 joerg * must be sufficient to identify the device. 295 1.2.2.2 joerg */ 296 1.2.2.2 joerg 297 1.2.2.2 joerg if (bin->bus == BI_BUS_ISA && 298 1.2.2.2 joerg device_is_a(device_parent(dev), "isa")) { 299 1.2.2.2 joerg struct isa_attach_args *iaa = aux; 300 1.2.2.2 joerg 301 1.2.2.2 joerg /* compare IO base address */ 302 1.2.2.2 joerg /* XXXJRT what about multiple I/O addrs? */ 303 1.2.2.2 joerg if (iaa->ia_nio > 0 && 304 1.2.2.2 joerg bin->addr.iobase == iaa->ia_io[0].ir_addr) 305 1.2.2.2 joerg goto found; 306 1.2.2.2 joerg } 307 1.2.2.2 joerg #if NPCI > 0 308 1.2.2.2 joerg if (bin->bus == BI_BUS_PCI && 309 1.2.2.2 joerg device_is_a(device_parent(dev), "pci")) { 310 1.2.2.2 joerg struct pci_attach_args *paa = aux; 311 1.2.2.2 joerg int b, d, f; 312 1.2.2.2 joerg 313 1.2.2.2 joerg /* 314 1.2.2.2 joerg * Calculate BIOS representation of: 315 1.2.2.2 joerg * 316 1.2.2.2 joerg * <bus,device,function> 317 1.2.2.2 joerg * 318 1.2.2.2 joerg * and compare. 319 1.2.2.2 joerg */ 320 1.2.2.2 joerg pci_decompose_tag(paa->pa_pc, paa->pa_tag, &b, &d, &f); 321 1.2.2.2 joerg if (bin->addr.tag == ((b << 8) | (d << 3) | f)) 322 1.2.2.2 joerg goto found; 323 1.2.2.2 joerg } 324 1.2.2.2 joerg #endif 325 1.2.2.2 joerg } 326 1.2.2.2 joerg return; 327 1.2.2.2 joerg 328 1.2.2.2 joerg found: 329 1.2.2.2 joerg if (booted_device) { 330 1.2.2.2 joerg /* XXX should be a "panic()" */ 331 1.2.2.2 joerg printf("warning: double match for boot device (%s, %s)\n", 332 1.2.2.2 joerg booted_device->dv_xname, dev->dv_xname); 333 1.2.2.2 joerg return; 334 1.2.2.2 joerg } 335 1.2.2.2 joerg booted_device = dev; 336 1.2.2.2 joerg } 337 1.2.2.2 joerg 338 1.2.2.2 joerg static void 339 1.2.2.2 joerg handle_wedges(struct device *dv, int par) 340 1.2.2.2 joerg { 341 1.2.2.2 joerg if (config_handle_wedges(dv, par) == 0) 342 1.2.2.2 joerg return; 343 1.2.2.2 joerg booted_device = dv; 344 1.2.2.2 joerg booted_partition = par; 345 1.2.2.2 joerg } 346 1.2.2.2 joerg 347 1.2.2.2 joerg static int 348 1.2.2.2 joerg is_valid_disk(struct device *dv) 349 1.2.2.2 joerg { 350 1.2.2.2 joerg 351 1.2.2.2 joerg if (device_class(dv) != DV_DISK) 352 1.2.2.2 joerg return (0); 353 1.2.2.2 joerg 354 1.2.2.2 joerg return (device_is_a(dv, "dk") || 355 1.2.2.2 joerg device_is_a(dv, "sd") || 356 1.2.2.2 joerg device_is_a(dv, "wd") || 357 1.2.2.2 joerg device_is_a(dv, "ld") || 358 1.2.2.2 joerg device_is_a(dv, "ed") || 359 1.2.2.2 joerg device_is_a(dv, "xbd")); 360 1.2.2.2 joerg } 361
Indexes created Fri Oct 03 14:09:59 GMT 2025