1/* $NetBSD: autoconf.c,v 1.30 2020/05/02 16:44:34 bouyer Exp $ */ 2 3/*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)autoconf.c 7.1 (Berkeley) 5/9/91 35 */ 36 37/* 38 * Setup the system to run on the current machine. 39 * 40 * Configure() is called at boot time and initializes the vba 41 * device tables and the memory controller monitoring. Available 42 * devices are determined (from possibilities mentioned in ioconf.c), 43 * and the drivers are initialized. 44 * 45 * Lots of this is now in x86/x86/x86_autoconf.c 46 */ 47 48#include <sys/cdefs.h> 49__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.30 2020/05/02 16:44:34 bouyer Exp $"); 50 51#include "opt_multiprocessor.h" 52#include "opt_intrdebug.h" 53 54#include <sys/param.h> 55#include <sys/systm.h> 56#include <sys/buf.h> 57#include <sys/cpu.h> 58#include <sys/device.h> 59 60#include <machine/pte.h> 61#include <machine/cpufunc.h> 62 63#include "acpica.h" 64#include "ioapic.h" 65#include "lapic.h" 66 67#if NACPICA > 0 68#include <dev/acpi/acpi_srat.h> 69#endif 70 71#if NIOAPIC > 0 72#include <machine/i82093var.h> 73#endif 74 75#if NLAPIC > 0 76#include <machine/i82489var.h> 77#endif 78 79#include "bios32.h" 80#if NBIOS32 > 0 81#include <machine/bios32.h> 82/* XXX */ 83extern void platform_init(void); 84#endif 85 86#include <x86/efi.h> 87#include <x86/x86/tsc.h> 88 89/* 90 * Determine i/o configuration for a machine. 91 */ 92void 93cpu_configure(void) 94{ 95#ifdef XEN 96 if (vm_guest == VM_GUEST_XENPVH) 97 xen_startrtclock(); 98 else 99 startrtclock(); 100#else 101 startrtclock(); 102#endif 103 104#if NBIOS32 > 0 105 efi_init(); 106 bios32_init(); 107 platform_init(); 108 /* identify hypervisor type from SMBIOS */ 109 identify_hypervisor(); 110#endif 111 112 if (config_rootfound("mainbus", NULL) == NULL) 113 panic("configure: mainbus not configured"); 114 115#ifdef INTRDEBUG 116 intr_printconfig(); 117#endif 118 119#if NIOAPIC > 0 120 ioapic_enable(); 121#endif 122 123#ifdef MULTIPROCESSOR 124 cpu_init_idle_lwps(); 125#endif 126 127#if NACPICA > 0 128 /* Load NUMA memory regions into UVM. */ 129 acpisrat_load_uvm(); 130#endif 131 132 spl0(); 133 lcr8(0); 134} 135