2 * Copyright (c) 2001 Benno Rice <benno@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #define __ELF_WORD_SIZE 64
32 #include <sys/param.h>
33 #include <sys/linker.h>
35 #include <machine/metadata.h>
36 #include <machine/elf.h>
40 #include "bootstrap.h"
41 #include "host_syscall.h"
44 extern void *kerneltramp;
45 extern size_t szkerneltramp;
46 extern int nkexec_segments;
47 extern void * loaded_segments;
50 ppc64_elf_loadfile(char *filename, u_int64_t dest,
51 struct preloaded_file **result)
55 r = __elfN(loadfile)(filename, dest, result);
63 ppc64_elf_exec(struct preloaded_file *fp)
65 struct file_metadata *fmp;
71 vm_offset_t trampolinebase;
73 if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) {
76 e = (Elf_Ehdr *)&fmp->md_data;
78 /* Figure out where to put it */
79 trampolinebase = archsw.arch_loadaddr(LOAD_RAW, NULL, 0);
81 /* Set up loader trampoline */
82 trampoline = malloc(szkerneltramp);
83 memcpy(trampoline, &kerneltramp, szkerneltramp);
84 /* Parse function descriptor for ELFv1 kernels */
85 if ((e->e_flags & 3) == 2)
88 archsw.arch_copyout(e->e_entry + elf64_relocation_offset,
90 trampoline[2] = entry + elf64_relocation_offset;
91 trampoline[4] = 0; /* Phys. mem offset */
92 trampoline[5] = 0; /* OF entry point */
94 if ((error = md_load64(fp->f_args, &mdp, &dtb)) != 0)
99 trampoline[7] = sizeof(mdp);
100 printf("Kernel entry at %#jx (%#x) ...\n", e->e_entry, trampoline[2]);
101 printf("DTB at %#x, mdp at %#x\n", dtb, mdp);
105 archsw.arch_copyin(trampoline, trampolinebase, szkerneltramp);
108 error = kexec_load(trampolinebase, nkexec_segments, &loaded_segments);
110 panic("kexec_load returned error: %d", error);
111 error = host_reboot(0xfee1dead, 672274793,
112 0x45584543 /* LINUX_REBOOT_CMD_KEXEC */, NULL);
114 panic("reboot returned error: %d", error);
117 panic("exec returned");
120 struct file_format ppc_elf64 =