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 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 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