/* $NetBSD: autoconf.c,v 1.23 2019/05/24 14:28:48 nonaka Exp $ */ /* NetBSD: autoconf.c,v 1.75 2003/12/30 12:33:22 pk Exp */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)autoconf.c 7.1 (Berkeley) 5/9/91 */ /* * Setup the system to run on the current machine. * * Configure() is called at boot time and initializes the vba * device tables and the memory controller monitoring. Available * devices are determined (from possibilities mentioned in ioconf.c), * and the drivers are initialized. */ #include __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.23 2019/05/24 14:28:48 nonaka Exp $"); #include "opt_xen.h" #include "opt_multiprocessor.h" #include "opt_nfs_boot.h" #include #include #include #include #include #include #include #include #include #include #include #include #ifdef NFS_BOOT_BOOTSTATIC #include #include #include #include #include #include #include #include #include #endif #include #include #include #include #include static int is_valid_disk(device_t); struct disklist *x86_alldisks; int x86_ndisks; int x86_found_console; #include "bios32.h" #if NBIOS32 > 0 #include /* XXX */ extern void platform_init(void); #endif #include "opt_pcibios.h" #ifdef PCIBIOS #include #include #include #endif #ifdef DEBUG_GEOM #define DPRINTF(a) printf a #else #define DPRINTF(a) #endif /* * Determine i/o configuration for a machine. */ void cpu_configure(void) { struct pcb *pcb; startrtclock(); #if defined(DOM0OPS) if (xendomain_is_dom0()) { #if NBIOS32 > 0 bios32_init(); platform_init(); /* identify hypervisor type from SMBIOS */ identify_hypervisor(); #endif /* NBIOS32 > 0 */ } else #endif /* DOM0OPS */ vm_guest = VM_GUEST_XEN; #ifdef PCIBIOS pcibios_init(); #endif if (config_rootfound("mainbus", NULL) == NULL) panic("configure: mainbus not configured"); #ifdef INTRDEBUG intr_printconfig(); #endif #if NIOAPIC > 0 ioapic_enable(); #endif /* resync cr0 after FPU configuration */ pcb = lwp_getpcb(&lwp0); pcb->pcb_cr0 = rcr0(); #ifdef MULTIPROCESSOR /* propagate this to the idle pcb's. */ cpu_init_idle_lwps(); #endif spl0(); } void cpu_rootconf(void) { cpu_bootconf(); printf("boot device: %s\n", booted_device ? device_xname(booted_device) : bootspec ? bootspec : ""); rootconf(); } /* * Attempt to find the device from which we were booted. */ void cpu_bootconf(void) { device_t dv; deviter_t di; union xen_cmdline_parseinfo xcp; static char bootspecbuf[sizeof(xcp.xcp_bootdev)]; if (booted_device) { DPRINTF(("%s: preset booted_device: %s\n", __func__, device_xname(booted_device))); return; } xen_parse_cmdline(XEN_PARSE_BOOTDEV, &xcp); for (dv = deviter_first(&di, DEVITER_F_ROOT_FIRST); dv != NULL; dv = deviter_next(&di)) { bool is_ifnet, is_disk; const char *devname; is_ifnet = (device_class(dv) == DV_IFNET); is_disk = is_valid_disk(dv); devname = device_xname(dv); if (!is_ifnet && !is_disk) continue; if (is_disk && xcp.xcp_bootdev[0] == 0) { booted_device = dv; break; } if (strncmp(xcp.xcp_bootdev, devname, strlen(devname))) continue; if (is_disk && strlen(xcp.xcp_bootdev) > strlen(devname)) { /* XXX check device_cfdata as in x86_autoconf.c? */ booted_partition = toupper( xcp.xcp_bootdev[strlen(devname)]) - 'A'; DPRINTF(("%s: booted_partition: %d\n", __func__, booted_partition)); } booted_device = dv; booted_method = "bootinfo/bootdev"; break; } deviter_release(&di); if (booted_device) { DPRINTF(("%s: booted_device: %s\n", __func__, device_xname(booted_device))); return; } /* * not a boot device name, pass through to MI code */ if (xcp.xcp_bootdev[0] != '\0') { strlcpy(bootspecbuf, xcp.xcp_bootdev, sizeof(bootspecbuf)); bootspec = bootspecbuf; booted_method = "bootinfo/bootspec"; DPRINTF(("%s: bootspec: %s\n", __func__, bootspec)); return; } } #include "pci.h" #include #if NPCI > 0 #include #endif #if defined(NFS_BOOT_BOOTSTATIC) && defined(DOM0OPS) static int dom0_bootstatic_callback(struct nfs_diskless *nd) { #if 0 struct ifnet *ifp = nd->nd_ifp; #endif int flags = 0; union xen_cmdline_parseinfo xcp; struct sockaddr_in *sin; memset(&xcp, 0, sizeof(xcp.xcp_netinfo)); xcp.xcp_netinfo.xi_ifno = 0; /* XXX first interface hardcoded */ xcp.xcp_netinfo.xi_root = nd->nd_root.ndm_host; xen_parse_cmdline(XEN_PARSE_NETINFO, &xcp); if (xcp.xcp_netinfo.xi_root[0] != '\0') { flags |= NFS_BOOT_HAS_SERVER; if (strchr(xcp.xcp_netinfo.xi_root, ':') != NULL) flags |= NFS_BOOT_HAS_ROOTPATH; } nd->nd_myip.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[0]); nd->nd_gwip.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[2]); nd->nd_mask.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[3]); sin = (struct sockaddr_in *) &nd->nd_root.ndm_saddr; memset((void *)sin, 0, sizeof(*sin)); sin->sin_len = sizeof(*sin); sin->sin_family = AF_INET; sin->sin_addr.s_addr = ntohl(xcp.xcp_netinfo.xi_ip[1]); if (nd->nd_myip.s_addr) flags |= NFS_BOOT_HAS_MYIP; if (nd->nd_gwip.s_addr) flags |= NFS_BOOT_HAS_GWIP; if (nd->nd_mask.s_addr) flags |= NFS_BOOT_HAS_MASK; if (sin->sin_addr.s_addr) flags |= NFS_BOOT_HAS_SERVADDR; return flags; } #endif void device_register(device_t dev, void *aux) { /* * Handle network interfaces here, the attachment information is * not available driver independently later. * For disks, there is nothing useful available at attach time. */ #if NXENNET_HYPERVISOR > 0 || NXENNET_XENBUS > 0 || defined(DOM0OPS) if (device_class(dev) == DV_IFNET) { union xen_cmdline_parseinfo xcp; #ifdef NFS_BOOT_BOOTSTATIC #ifdef DOM0OPS if (xendomain_is_privileged()) { nfs_bootstatic_callback = dom0_bootstatic_callback; } else #endif #if NXENNET_HYPERVISOR > 0 || NXENNET_XENBUS > 0 nfs_bootstatic_callback = xennet_bootstatic_callback; #endif #endif xen_parse_cmdline(XEN_PARSE_BOOTDEV, &xcp); if (strncmp(xcp.xcp_bootdev, device_xname(dev), sizeof(xcp.xcp_bootdev)) == 0) { goto found; } } #endif if (device_class(dev) == DV_IFNET) { struct btinfo_netif *bin = lookup_bootinfo(BTINFO_NETIF); if (bin == NULL) return; /* * We don't check the driver name against the device name * passed by the boot ROM. The ROM should stay usable * if the driver gets obsoleted. * The physical attachment information (checked below) * must be sufficient to identify the device. */ if (bin->bus == BI_BUS_ISA && device_is_a(device_parent(dev), "isa")) { struct isa_attach_args *iaa = aux; /* compare IO base address */ /* XXXJRT what about multiple I/O addrs? */ if (iaa->ia_nio > 0 && bin->addr.iobase == iaa->ia_io[0].ir_addr) goto found; } #if NPCI > 0 if (bin->bus == BI_BUS_PCI && device_is_a(device_parent(dev), "pci")) { struct pci_attach_args *paa = aux; int b, d, f; /* * Calculate BIOS representation of: * * * * and compare. */ pci_decompose_tag(paa->pa_pc, paa->pa_tag, &b, &d, &f); if (bin->addr.tag == ((b << 8) | (d << 3) | f)) goto found; } #endif } return; found: if (booted_device) { /* XXX should be a "panic()" */ printf("warning: double match for boot device (%s, %s)\n", device_xname(booted_device), device_xname(dev)); return; } booted_device = dev; } static int is_valid_disk(device_t dv) { if (device_class(dv) != DV_DISK) return (0); return (device_is_a(dv, "dk") || device_is_a(dv, "sd") || device_is_a(dv, "wd") || device_is_a(dv, "ld") || device_is_a(dv, "ed") || device_is_a(dv, "xbd")); }