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 extern int bi_load(char *, vm_offset_t *, vm_offset_t *, bool);
44
45 static int
__elfN(arm_load)46 __elfN(arm_load)(char *filename, uint64_t dest,
47 struct preloaded_file **result)
48 {
49 int r;
50
51 r = __elfN(loadfile)(filename, dest, result);
52 if (r != 0)
53 return (r);
54
55 return (0);
56 }
57
58 static int
__elfN(arm_exec)59 __elfN(arm_exec)(struct preloaded_file *fp)
60 {
61 struct file_metadata *fmp;
62 vm_offset_t modulep, kernend;
63 Elf_Ehdr *e;
64 int error;
65 void (*entry)(void *);
66
67 if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
68 return (EFTYPE);
69
70 e = (Elf_Ehdr *)&fmp->md_data;
71
72 efi_time_fini();
73
74 entry = efi_translate(e->e_entry);
75
76 printf("Kernel entry at %p...\n", entry);
77 printf("Kernel args: %s\n", fp->f_args);
78
79 if ((error = bi_load(fp->f_args, &modulep, &kernend, true)) != 0) {
80 efi_time_init();
81 return (error);
82 }
83
84 /* At this point we've called ExitBootServices, so we can't call
85 * printf or any other function that uses Boot Services */
86
87 dev_cleanup();
88
89 (*entry)((void *)modulep);
90 panic("exec returned");
91 }
92
93 static struct file_format arm_elf = {
94 __elfN(arm_load),
95 __elfN(arm_exec)
96 };
97
98 struct file_format *file_formats[] = {
99 &arm_elf,
100 NULL
101 };
102
103