1/*-
2 * Copyright (c) 2001 Benno Rice <benno@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#define __ELF_WORD_SIZE 64
31
32#include <sys/param.h>
33#include <sys/linker.h>
34
35#include <machine/metadata.h>
36#include <machine/elf.h>
37
38#include <stand.h>
39
40#include "bootstrap.h"
41#include "libofw.h"
42#include "openfirm.h"
43
44extern char		end[];
45extern vm_offset_t	reloc;	/* From <arch>/conf.c */
46
47int
48ppc64_ofw_elf_loadfile(char *filename, u_int64_t dest,
49    struct preloaded_file **result)
50{
51	int	r;
52
53	r = __elfN(loadfile)(filename, dest, result);
54	if (r != 0)
55		return (r);
56
57	/*
58	 * No need to sync the icache for modules: this will
59	 * be done by the kernel after relocation.
60	 */
61	if (!strcmp((*result)->f_type, "elf kernel"))
62		__syncicache((void *) (*result)->f_addr, (*result)->f_size);
63	return (0);
64}
65
66int
67ppc64_ofw_elf_exec(struct preloaded_file *fp)
68{
69	struct file_metadata	*fmp;
70	vm_offset_t		mdp;
71	Elf_Ehdr		*e;
72	int			error;
73	intptr_t		entry;
74
75	if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) {
76		return(EFTYPE);
77	}
78	e = (Elf_Ehdr *)&fmp->md_data;
79
80	/* Handle function descriptor */
81	entry = *(uint64_t *)e->e_entry;
82
83	if ((error = md_load64(fp->f_args, &mdp)) != 0)
84		return (error);
85
86	printf("Kernel entry at 0x%lx ...\n", entry);
87
88	dev_cleanup();
89	ofw_release_heap();
90
91	OF_chain((void *)reloc, end - (char *)reloc, (void *)entry,
92	    (void *)mdp, sizeof(mdp));
93
94	panic("exec returned");
95}
96
97struct file_format	ofw_elf64 =
98{
99	ppc64_ofw_elf_loadfile,
100	ppc64_ofw_elf_exec
101};
102