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/param.h>
29 #include <sys/linker.h>
30
31 #include <machine/md_var.h>
32 #include <machine/metadata.h>
33 #include <machine/elf.h>
34
35 #include <stand.h>
36
37 #include <efi.h>
38 #include <efilib.h>
39
40 #include "bootstrap.h"
41 #include "loader_efi.h"
42
43 static int
__elfN(arm_load)44 __elfN(arm_load)(char *filename, uint64_t dest,
45 struct preloaded_file **result)
46 {
47 int r;
48
49 r = __elfN(loadfile)(filename, dest, result);
50 if (r != 0)
51 return (r);
52
53 return (0);
54 }
55
56 static int
__elfN(arm_exec)57 __elfN(arm_exec)(struct preloaded_file *fp)
58 {
59 struct file_metadata *fmp;
60 vm_offset_t modulep, kernend;
61 Elf_Ehdr *e;
62 int error;
63 void (*entry)(void *);
64
65 if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
66 return (EFTYPE);
67
68 e = (Elf_Ehdr *)&fmp->md_data;
69
70 efi_time_fini();
71
72 entry = efi_translate(e->e_entry);
73
74 printf("Kernel entry at %p...\n", entry);
75 printf("Kernel args: %s\n", fp->f_args);
76
77 if ((error = bi_load(fp->f_args, &modulep, &kernend, true)) != 0) {
78 efi_time_init();
79 return (error);
80 }
81
82 /* At this point we've called ExitBootServices, so we can't call
83 * printf or any other function that uses Boot Services */
84
85 dev_cleanup();
86
87 (*entry)((void *)modulep);
88 panic("exec returned");
89 }
90
91 static struct file_format arm_elf = {
92 __elfN(arm_load),
93 __elfN(arm_exec)
94 };
95
96 struct file_format *file_formats[] = {
97 &arm_elf,
98 NULL
99 };
100
101