/* $OpenBSD: autoconf.c,v 1.75 2007/06/01 19:25:10 deraadt Exp $ */
/* $NetBSD: autoconf.c,v 1.20 1996/05/03 19:41:56 christos 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.
*
* cpu_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 <sys/param.h>
#include <sys/systm.h>
#include <sys/user.h>
#include <sys/buf.h>
#include <sys/dkstat.h>
#include <sys/disklabel.h>
#include <sys/conf.h>
#include <sys/reboot.h>
#include <sys/device.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <net/if.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <uvm/uvm_extern.h>
#include <machine/pte.h>
#include <machine/cpu.h>
#include <machine/gdt.h>
#include <machine/biosvar.h>
#include <machine/kvm86.h>
#include <dev/cons.h>
#include "ioapic.h"
#if NIOAPIC > 0
#include <machine/i82093var.h>
#endif
/*
* The following several variables are related to
* the configuration process, and are used in initializing
* the machine.
*/
extern dev_t bootdev;
/* Support for VIA C3 RNG */
#ifdef I686_CPU
extern struct timeout viac3_rnd_tmo;
extern int viac3_rnd_present;
void viac3_rnd(void *);
#ifdef CRYPTO
void viac3_crypto_setup(void);
extern int i386_has_xcrypt;
#endif /* CRYPTO */
#endif
/*
* Determine i/o configuration for a machine.
*/
void
cpu_configure(void)
{
/*
* Note, on i386, configure is not running under splhigh unlike other
* architectures. This fact is used by the pcmcia irq line probing.
*/
startrtclock();
gdt_init(); /* XXX - pcibios uses gdt stuff */
/* Set up proc0's TSS and LDT */
i386_proc0_tss_ldt_init();
#ifdef KVM86
kvm86_init();
#endif
if (config_rootfound("mainbus", NULL) == NULL)
panic("cpu_configure: mainbus not configured");
#if NIOAPIC > 0
if (nioapics > 0)
goto nomasks;
#endif
printf("biomask %x netmask %x ttymask %x\n", (u_short)IMASK(IPL_BIO),
(u_short)IMASK(IPL_NET), (u_short)IMASK(IPL_TTY));
#if NIOAPIC > 0
nomasks:
ioapic_enable();
#endif
proc0.p_addr->u_pcb.pcb_cr0 = rcr0();
#ifdef MULTIPROCESSOR
/* propagate TSS and LDT configuration to the idle pcb's. */
cpu_init_idle_pcbs();
#endif
spl0();
/*
* We can not know which is our root disk, defer
* until we can checksum blocks to figure it out.
*/
cold = 0;
#ifdef I686_CPU
/*
* At this point the RNG is running, and if FSXR is set we can
* use it. Here we setup a periodic timeout to collect the data.
*/
if (viac3_rnd_present) {
timeout_set(&viac3_rnd_tmo, viac3_rnd, &viac3_rnd_tmo);
viac3_rnd(&viac3_rnd_tmo);
}
#ifdef CRYPTO
/*
* Also, if the chip has crypto available, enable it.
*/
if (i386_has_xcrypt)
viac3_crypto_setup();
#endif /* CRYPTO */
#endif
}
void
device_register(struct device *dev, void *aux)
{
}
/*
* Now that we are fully operational, we can checksum the
* disks, and using some heuristics, hopefully are able to
* always determine the correct root disk.
*/
void
diskconf(void)
{
int majdev, unit, part = 0;
struct device *bootdv = NULL;
dev_t tmpdev;
char buf[128];
#if defined(NFSCLIENT)
extern bios_bootmac_t *bios_bootmac;
#endif
dkcsumattach();
if ((bootdev & B_MAGICMASK) == (u_int)B_DEVMAGIC) {
majdev = B_TYPE(bootdev);
unit = B_UNIT(bootdev);
part = B_PARTITION(bootdev);
snprintf(buf, sizeof buf, "%s%d%c", findblkname(majdev),
unit, part + 'a');
bootdv = parsedisk(buf, strlen(buf), part, &tmpdev);
}
#if defined(NFSCLIENT)
if (bios_bootmac) {
struct ifnet *ifp;
printf("PXE boot MAC address %s, ",
ether_sprintf(bios_bootmac->mac));
for (ifp = TAILQ_FIRST(&ifnet); ifp != NULL;
ifp = TAILQ_NEXT(ifp, if_list)) {
if ((ifp->if_type == IFT_ETHER ||
ifp->if_type == IFT_FDDI) &&
bcmp(bios_bootmac->mac,
((struct arpcom *)ifp)->ac_enaddr,
ETHER_ADDR_LEN) == 0)
break;
}
if (ifp) {
printf("interface %s\n", ifp->if_xname);
mountroot = nfs_mountroot; /* potentially */
bootdv = parsedisk(ifp->if_xname, strlen(ifp->if_xname),
0, &tmpdev);
part = 0;
} else
printf("unknown interface\n");
}
#endif
setroot(bootdv, part, RB_USERREQ);
dumpconf();
}
struct nam2blk nam2blk[] = {
{ "wd", 0 },
{ "fd", 2 },
{ "sd", 4 },
{ "cd", 6 },
{ "mcd", 7 },
{ "rd", 17 },
{ "raid", 19 },
{ NULL, -1 }
};