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 */
83 extern 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 */
92 void
cpu_configure(void)93 cpu_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