1 /*-
2 * Copyright (c) 2001 Benno Rice <benno@FreeBSD.org>
3 * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * 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 #include <sys/cdefs.h>
29 #include <sys/param.h>
30 #include <sys/linker.h>
31
32 #include <machine/md_var.h>
33 #include <machine/metadata.h>
34 #include <machine/elf.h>
35
36 #include <stand.h>
37
38 #include <efi.h>
39 #include <efilib.h>
40
41 #include "bootstrap.h"
42 #include "loader_efi.h"
43
44 extern int bi_load(char *, vm_offset_t *, vm_offset_t *, bool);
45
46 static int
__elfN(arm_load)47 __elfN(arm_load)(char *filename, uint64_t dest,
48 struct preloaded_file **result)
49 {
50 int r;
51
52 r = __elfN(loadfile)(filename, dest, result);
53 if (r != 0)
54 return (r);
55
56 return (0);
57 }
58
59 static int
__elfN(arm_exec)60 __elfN(arm_exec)(struct preloaded_file *fp)
61 {
62 struct file_metadata *fmp;
63 vm_offset_t modulep, kernend;
64 Elf_Ehdr *e;
65 int error;
66 void (*entry)(void *);
67
68 if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
69 return (EFTYPE);
70
71 e = (Elf_Ehdr *)&fmp->md_data;
72
73 efi_time_fini();
74
75 entry = efi_translate(e->e_entry);
76
77 printf("Kernel entry at %p...\n", entry);
78 printf("Kernel args: %s\n", fp->f_args);
79
80 if ((error = bi_load(fp->f_args, &modulep, &kernend, true)) != 0) {
81 efi_time_init();
82 return (error);
83 }
84
85 /* At this point we've called ExitBootServices, so we can't call
86 * printf or any other function that uses Boot Services */
87
88 dev_cleanup();
89
90 (*entry)((void *)modulep);
91 panic("exec returned");
92 }
93
94 static struct file_format arm_elf = {
95 __elfN(arm_load),
96 __elfN(arm_exec)
97 };
98
99 struct file_format *file_formats[] = {
100 &arm_elf,
101 NULL
102 };
103
104