19dc70af8SWarner Losh /*- 29dc70af8SWarner Losh * Copyright (c) 2001 Benno Rice <benno@FreeBSD.org> 39dc70af8SWarner Losh * All rights reserved. 49dc70af8SWarner Losh * 59dc70af8SWarner Losh * Redistribution and use in source and binary forms, with or without 69dc70af8SWarner Losh * modification, are permitted provided that the following conditions 79dc70af8SWarner Losh * are met: 89dc70af8SWarner Losh * 1. Redistributions of source code must retain the above copyright 99dc70af8SWarner Losh * notice, this list of conditions and the following disclaimer. 109dc70af8SWarner Losh * 2. Redistributions in binary form must reproduce the above copyright 119dc70af8SWarner Losh * notice, this list of conditions and the following disclaimer in the 129dc70af8SWarner Losh * documentation and/or other materials provided with the distribution. 139dc70af8SWarner Losh * 149dc70af8SWarner Losh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 159dc70af8SWarner Losh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 169dc70af8SWarner Losh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 179dc70af8SWarner Losh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 189dc70af8SWarner Losh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 199dc70af8SWarner Losh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 209dc70af8SWarner Losh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 219dc70af8SWarner Losh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 229dc70af8SWarner Losh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 239dc70af8SWarner Losh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 249dc70af8SWarner Losh * SUCH DAMAGE. 259dc70af8SWarner Losh */ 269dc70af8SWarner Losh 279dc70af8SWarner Losh #include <sys/cdefs.h> 289dc70af8SWarner Losh __FBSDID("$FreeBSD$"); 299dc70af8SWarner Losh 309dc70af8SWarner Losh #define __ELF_WORD_SIZE 64 319dc70af8SWarner Losh 329dc70af8SWarner Losh #include <sys/param.h> 339dc70af8SWarner Losh #include <sys/linker.h> 349dc70af8SWarner Losh 359dc70af8SWarner Losh #include <machine/metadata.h> 369dc70af8SWarner Losh #include <machine/elf.h> 379dc70af8SWarner Losh #include <machine/md_var.h> 389dc70af8SWarner Losh 399dc70af8SWarner Losh #include <stand.h> 409dc70af8SWarner Losh 419dc70af8SWarner Losh #include "bootstrap.h" 429dc70af8SWarner Losh #include "libuboot.h" 43*335615c4SWarner Losh #include "modinfo.h" 449dc70af8SWarner Losh 459dc70af8SWarner Losh int 469dc70af8SWarner Losh ppc64_uboot_elf_loadfile(char *filename, uint64_t dest, 479dc70af8SWarner Losh struct preloaded_file **result) 489dc70af8SWarner Losh { 499dc70af8SWarner Losh int r; 509dc70af8SWarner Losh 519dc70af8SWarner Losh r = __elfN(loadfile)(filename, dest, result); 529dc70af8SWarner Losh if (r != 0) 539dc70af8SWarner Losh return (r); 549dc70af8SWarner Losh 559dc70af8SWarner Losh /* 569dc70af8SWarner Losh * No need to sync the icache for modules: this will 579dc70af8SWarner Losh * be done by the kernel after relocation. 589dc70af8SWarner Losh */ 599dc70af8SWarner Losh if (!strcmp((*result)->f_type, "elf kernel")) 609dc70af8SWarner Losh __syncicache((void *) (*result)->f_addr, (*result)->f_size); 619dc70af8SWarner Losh return (0); 629dc70af8SWarner Losh } 639dc70af8SWarner Losh 649dc70af8SWarner Losh int 659dc70af8SWarner Losh ppc64_uboot_elf_exec(struct preloaded_file *fp) 669dc70af8SWarner Losh { 679dc70af8SWarner Losh struct file_metadata *fmp; 689dc70af8SWarner Losh vm_offset_t mdp, dtbp; 699dc70af8SWarner Losh Elf_Ehdr *e; 709dc70af8SWarner Losh int error; 719dc70af8SWarner Losh void (*entry)(void *); 729dc70af8SWarner Losh 739dc70af8SWarner Losh if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) { 749dc70af8SWarner Losh return(EFTYPE); 759dc70af8SWarner Losh } 769dc70af8SWarner Losh e = (Elf_Ehdr *)&fmp->md_data; 779dc70af8SWarner Losh 789dc70af8SWarner Losh /* Handle function descriptor for ELFv1 kernels */ 799dc70af8SWarner Losh if ((e->e_flags & 3) == 2) 809dc70af8SWarner Losh entry = (void (*)(void*))(intptr_t)e->e_entry; 819dc70af8SWarner Losh else 829dc70af8SWarner Losh entry = *(void (*)(void*))(uint64_t *)(intptr_t)e->e_entry; 839dc70af8SWarner Losh 849dc70af8SWarner Losh if ((error = md_load64(fp->f_args, &mdp, &dtbp)) != 0) 859dc70af8SWarner Losh return (error); 869dc70af8SWarner Losh 879dc70af8SWarner Losh dev_cleanup(); 889dc70af8SWarner Losh printf("Kernel args: %s\n", fp->f_args); 899dc70af8SWarner Losh 909dc70af8SWarner Losh (*entry)((void *)mdp); 919dc70af8SWarner Losh panic("exec returned"); 929dc70af8SWarner Losh } 939dc70af8SWarner Losh 949dc70af8SWarner Losh struct file_format uboot_elf64 = 959dc70af8SWarner Losh { 969dc70af8SWarner Losh ppc64_uboot_elf_loadfile, 979dc70af8SWarner Losh ppc64_uboot_elf_exec 989dc70af8SWarner Losh }; 99