main.c revision 83192 
1263320Sdim/*-
2263320Sdim * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3263320Sdim * Copyright (c) 1998,2000 Doug Rabson <dfr@freebsd.org>
4269012Semaste * All rights reserved.
5263320Sdim *
6263320Sdim * Redistribution and use in source and binary forms, with or without
7263320Sdim * modification, are permitted provided that the following conditions
8263320Sdim * are met:
9263320Sdim * 1. Redistributions of source code must retain the above copyright
10263320Sdim *    notice, this list of conditions and the following disclaimer.
11263320Sdim * 2. Redistributions in binary form must reproduce the above copyright
12263320Sdim *    notice, this list of conditions and the following disclaimer in the
13263320Sdim *    documentation and/or other materials provided with the distribution.
14263320Sdim *
15263320Sdim * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16263320Sdim * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17263320Sdim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18263320Sdim * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef lint
29static const char rcsid[] =
30  "$FreeBSD: head/sys/boot/ia64/efi/main.c 83192 2001-09-07 08:52:26Z dfr $";
31#endif /* not lint */
32
33#include <stand.h>
34#include <string.h>
35#include <setjmp.h>
36
37#include <efi.h>
38#include <efilib.h>
39
40#include "bootstrap.h"
41#include "efiboot.h"
42
43extern char bootprog_name[];
44extern char bootprog_rev[];
45extern char bootprog_date[];
46extern char bootprog_maker[];
47
48struct efi_devdesc	currdev;	/* our current device */
49struct arch_switch	archsw;		/* MI/MD interface boundary */
50
51EFI_STATUS
52efi_main (EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *system_table)
53{
54	int i;
55	EFI_PHYSICAL_ADDRESS mem;
56
57	efi_init(image_handle, system_table);
58
59	/*
60	 * Initialise the heap as early as possible.  Once this is done,
61	 * alloc() is usable. The stack is buried inside us, so this is
62	 * safe.
63	 */
64	BS->AllocatePages(AllocateAnyPages, EfiLoaderData,
65			  512*1024/4096, &mem);
66	setheap((void *)mem, (void *)(mem + 512*1024));
67
68	/*
69	 * XXX Chicken-and-egg problem; we want to have console output
70	 * early, but some console attributes may depend on reading from
71	 * eg. the boot device, which we can't do yet.  We can use
72	 * printf() etc. once this is done.
73	 */
74	cons_probe();
75
76	/*
77	 * Initialise the block cache
78	 */
79	bcache_init(32, 512);		/* 16k XXX tune this */
80
81	/*
82	 * March through the device switch probing for things.
83	 */
84	for (i = 0; devsw[i] != NULL; i++)
85		if (devsw[i]->dv_init != NULL)
86			(devsw[i]->dv_init)();
87
88	printf("\n");
89	printf("%s, Revision %s\n", bootprog_name, bootprog_rev);
90	printf("(%s, %s)\n", bootprog_maker, bootprog_date);
91#if 0
92	printf("Memory: %ld k\n", memsize() / 1024);
93#endif
94
95	/* XXX presumes that biosdisk is first in devsw */
96	currdev.d_dev = devsw[0];
97	currdev.d_type = currdev.d_dev->dv_type;
98	currdev.d_kind.efidisk.unit = 0;
99	/* XXX should be able to detect this, default to autoprobe */
100	currdev.d_kind.efidisk.slice = -1;
101	/* default to 'a' */
102	currdev.d_kind.efidisk.partition = 0;
103
104#if 0
105	/* Create arc-specific variables */
106	bootfile = GetEnvironmentVariable(ARCENV_BOOTFILE);
107	if (bootfile)
108		setenv("bootfile", bootfile, 1);
109#endif
110
111	env_setenv("currdev", EV_VOLATILE, efi_fmtdev(&currdev),
112	    efi_setcurrdev, env_nounset);
113	env_setenv("loaddev", EV_VOLATILE, efi_fmtdev(&currdev), env_noset,
114	    env_nounset);
115
116	setenv("LINES", "24", 1);	/* optional */
117
118	archsw.arch_autoload = efi_autoload;
119	archsw.arch_getdev = efi_getdev;
120	archsw.arch_copyin = efi_copyin;
121	archsw.arch_copyout = efi_copyout;
122	archsw.arch_readin = efi_readin;
123
124	interact();			/* doesn't return */
125
126	return (EFI_SUCCESS);		/* keep compiler happy */
127}
128
129COMMAND_SET(quit, "quit", "exit the loader", command_quit);
130
131static int
132command_quit(int argc, char *argv[])
133{
134	exit(0);
135	return (CMD_OK);
136}
137