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