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/*
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* QEMU Executable loader
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*
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* Copyright (c) 2006 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* Gunzip functionality in this file is derived from u-boot:
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*
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* (C) Copyright 2008 Semihalf
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*
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* (C) Copyright 2000-2005
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "hw.h" |
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#include "disas.h" |
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#include "monitor.h" |
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#include "sysemu.h" |
49 |
#include "uboot_image.h" |
50 |
#include "loader.h" |
51 |
|
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#include <zlib.h> |
53 |
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static int roms_loaded; |
55 |
|
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/* return the size or -1 if error */
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int get_image_size(const char *filename) |
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{ |
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int fd, size;
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fd = open(filename, O_RDONLY | O_BINARY); |
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if (fd < 0) |
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return -1; |
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size = lseek(fd, 0, SEEK_END);
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close(fd); |
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return size;
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} |
67 |
|
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/* return the size or -1 if error */
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/* deprecated, because caller does not specify buffer size! */
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int load_image(const char *filename, uint8_t *addr) |
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{ |
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int fd, size;
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fd = open(filename, O_RDONLY | O_BINARY); |
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if (fd < 0) |
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return -1; |
76 |
size = lseek(fd, 0, SEEK_END);
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lseek(fd, 0, SEEK_SET);
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if (read(fd, addr, size) != size) {
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close(fd); |
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return -1; |
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} |
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close(fd); |
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return size;
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} |
85 |
|
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/* read()-like version */
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int read_targphys(const char *name, |
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int fd, target_phys_addr_t dst_addr, size_t nbytes)
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{ |
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uint8_t *buf; |
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size_t did; |
92 |
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buf = qemu_malloc(nbytes); |
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did = read(fd, buf, nbytes); |
95 |
if (did > 0) |
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rom_add_blob_fixed("read", buf, did, dst_addr);
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qemu_free(buf); |
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return did;
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} |
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|
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/* return the size or -1 if error */
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int load_image_targphys(const char *filename, |
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target_phys_addr_t addr, int max_sz)
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{ |
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int size;
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size = get_image_size(filename); |
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if (size > 0) |
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rom_add_file_fixed(filename, addr); |
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return size;
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} |
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|
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void pstrcpy_targphys(const char *name, target_phys_addr_t dest, int buf_size, |
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const char *source) |
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{ |
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const char *nulp; |
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char *ptr;
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if (buf_size <= 0) return; |
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nulp = memchr(source, 0, buf_size);
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if (nulp) {
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rom_add_blob_fixed(name, source, (nulp - source) + 1, dest);
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} else {
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rom_add_blob_fixed(name, source, buf_size, dest); |
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ptr = rom_ptr(dest + buf_size - 1);
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*ptr = 0;
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} |
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} |
129 |
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/* A.OUT loader */
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|
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struct exec
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{ |
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uint32_t a_info; /* Use macros N_MAGIC, etc for access */
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uint32_t a_text; /* length of text, in bytes */
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uint32_t a_data; /* length of data, in bytes */
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uint32_t a_bss; /* length of uninitialized data area, in bytes */
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uint32_t a_syms; /* length of symbol table data in file, in bytes */
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uint32_t a_entry; /* start address */
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uint32_t a_trsize; /* length of relocation info for text, in bytes */
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uint32_t a_drsize; /* length of relocation info for data, in bytes */
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}; |
143 |
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static void bswap_ahdr(struct exec *e) |
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{ |
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bswap32s(&e->a_info); |
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bswap32s(&e->a_text); |
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bswap32s(&e->a_data); |
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bswap32s(&e->a_bss); |
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bswap32s(&e->a_syms); |
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bswap32s(&e->a_entry); |
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bswap32s(&e->a_trsize); |
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bswap32s(&e->a_drsize); |
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} |
155 |
|
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#define N_MAGIC(exec) ((exec).a_info & 0xffff) |
157 |
#define OMAGIC 0407 |
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#define NMAGIC 0410 |
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#define ZMAGIC 0413 |
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#define QMAGIC 0314 |
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#define _N_HDROFF(x) (1024 - sizeof (struct exec)) |
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#define N_TXTOFF(x) \
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(N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \ |
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(N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec))) |
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#define N_TXTADDR(x, target_page_size) (N_MAGIC(x) == QMAGIC ? target_page_size : 0) |
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#define _N_SEGMENT_ROUND(x, target_page_size) (((x) + target_page_size - 1) & ~(target_page_size - 1)) |
167 |
|
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#define _N_TXTENDADDR(x, target_page_size) (N_TXTADDR(x, target_page_size)+(x).a_text)
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|
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#define N_DATADDR(x, target_page_size) \
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(N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x, target_page_size)) \ |
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: (_N_SEGMENT_ROUND (_N_TXTENDADDR(x, target_page_size), target_page_size))) |
173 |
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int load_aout(const char *filename, target_phys_addr_t addr, int max_sz, |
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int bswap_needed, target_phys_addr_t target_page_size)
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{ |
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int fd, size, ret;
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struct exec e;
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uint32_t magic; |
181 |
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fd = open(filename, O_RDONLY | O_BINARY); |
183 |
if (fd < 0) |
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return -1; |
185 |
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size = read(fd, &e, sizeof(e));
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if (size < 0) |
188 |
goto fail;
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if (bswap_needed) {
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bswap_ahdr(&e); |
192 |
} |
193 |
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magic = N_MAGIC(e); |
195 |
switch (magic) {
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case ZMAGIC:
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case QMAGIC:
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case OMAGIC:
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if (e.a_text + e.a_data > max_sz)
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goto fail;
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lseek(fd, N_TXTOFF(e), SEEK_SET); |
202 |
size = read_targphys(filename, fd, addr, e.a_text + e.a_data); |
203 |
if (size < 0) |
204 |
goto fail;
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break;
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case NMAGIC:
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if (N_DATADDR(e, target_page_size) + e.a_data > max_sz)
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goto fail;
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lseek(fd, N_TXTOFF(e), SEEK_SET); |
210 |
size = read_targphys(filename, fd, addr, e.a_text); |
211 |
if (size < 0) |
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goto fail;
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ret = read_targphys(filename, fd, addr + N_DATADDR(e, target_page_size), |
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e.a_data); |
215 |
if (ret < 0) |
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goto fail;
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size += ret; |
218 |
break;
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default:
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goto fail;
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} |
222 |
close(fd); |
223 |
return size;
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fail:
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close(fd); |
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return -1; |
227 |
} |
228 |
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/* ELF loader */
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static void *load_at(int fd, int offset, int size) |
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{ |
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void *ptr;
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if (lseek(fd, offset, SEEK_SET) < 0) |
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return NULL; |
236 |
ptr = qemu_malloc(size); |
237 |
if (read(fd, ptr, size) != size) {
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qemu_free(ptr); |
239 |
return NULL; |
240 |
} |
241 |
return ptr;
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} |
243 |
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#ifdef ELF_CLASS
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#undef ELF_CLASS
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#endif
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#define ELF_CLASS ELFCLASS32
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#include "elf.h" |
250 |
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#define SZ 32 |
252 |
#define elf_word uint32_t
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#define elf_sword int32_t
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#define bswapSZs bswap32s
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#include "elf_ops.h" |
256 |
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#undef elfhdr
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#undef elf_phdr
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#undef elf_shdr
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260 |
#undef elf_sym
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261 |
#undef elf_note
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#undef elf_word
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#undef elf_sword
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#undef bswapSZs
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#undef SZ
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#define elfhdr elf64_hdr
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#define elf_phdr elf64_phdr
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#define elf_note elf64_note
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#define elf_shdr elf64_shdr
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#define elf_sym elf64_sym
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#define elf_word uint64_t
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#define elf_sword int64_t
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#define bswapSZs bswap64s
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#define SZ 64 |
275 |
#include "elf_ops.h" |
276 |
|
277 |
/* return < 0 if error, otherwise the number of bytes loaded in memory */
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278 |
int load_elf(const char *filename, int64_t address_offset, |
279 |
uint64_t *pentry, uint64_t *lowaddr, uint64_t *highaddr, |
280 |
int big_endian, int elf_machine, int clear_lsb) |
281 |
{ |
282 |
int fd, data_order, target_data_order, must_swab, ret;
|
283 |
uint8_t e_ident[EI_NIDENT]; |
284 |
|
285 |
fd = open(filename, O_RDONLY | O_BINARY); |
286 |
if (fd < 0) { |
287 |
perror(filename); |
288 |
return -1; |
289 |
} |
290 |
if (read(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident)) |
291 |
goto fail;
|
292 |
if (e_ident[0] != ELFMAG0 || |
293 |
e_ident[1] != ELFMAG1 ||
|
294 |
e_ident[2] != ELFMAG2 ||
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295 |
e_ident[3] != ELFMAG3)
|
296 |
goto fail;
|
297 |
#ifdef HOST_WORDS_BIGENDIAN
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298 |
data_order = ELFDATA2MSB; |
299 |
#else
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300 |
data_order = ELFDATA2LSB; |
301 |
#endif
|
302 |
must_swab = data_order != e_ident[EI_DATA]; |
303 |
if (big_endian) {
|
304 |
target_data_order = ELFDATA2MSB; |
305 |
} else {
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306 |
target_data_order = ELFDATA2LSB; |
307 |
} |
308 |
|
309 |
if (target_data_order != e_ident[EI_DATA])
|
310 |
return -1; |
311 |
|
312 |
lseek(fd, 0, SEEK_SET);
|
313 |
if (e_ident[EI_CLASS] == ELFCLASS64) {
|
314 |
ret = load_elf64(filename, fd, address_offset, must_swab, pentry, |
315 |
lowaddr, highaddr, elf_machine, clear_lsb); |
316 |
} else {
|
317 |
ret = load_elf32(filename, fd, address_offset, must_swab, pentry, |
318 |
lowaddr, highaddr, elf_machine, clear_lsb); |
319 |
} |
320 |
|
321 |
close(fd); |
322 |
return ret;
|
323 |
|
324 |
fail:
|
325 |
close(fd); |
326 |
return -1; |
327 |
} |
328 |
|
329 |
static void bswap_uboot_header(uboot_image_header_t *hdr) |
330 |
{ |
331 |
#ifndef HOST_WORDS_BIGENDIAN
|
332 |
bswap32s(&hdr->ih_magic); |
333 |
bswap32s(&hdr->ih_hcrc); |
334 |
bswap32s(&hdr->ih_time); |
335 |
bswap32s(&hdr->ih_size); |
336 |
bswap32s(&hdr->ih_load); |
337 |
bswap32s(&hdr->ih_ep); |
338 |
bswap32s(&hdr->ih_dcrc); |
339 |
#endif
|
340 |
} |
341 |
|
342 |
|
343 |
#define ZALLOC_ALIGNMENT 16 |
344 |
|
345 |
static void *zalloc(void *x, unsigned items, unsigned size) |
346 |
{ |
347 |
void *p;
|
348 |
|
349 |
size *= items; |
350 |
size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1); |
351 |
|
352 |
p = qemu_malloc(size); |
353 |
|
354 |
return (p);
|
355 |
} |
356 |
|
357 |
static void zfree(void *x, void *addr) |
358 |
{ |
359 |
qemu_free(addr); |
360 |
} |
361 |
|
362 |
|
363 |
#define HEAD_CRC 2 |
364 |
#define EXTRA_FIELD 4 |
365 |
#define ORIG_NAME 8 |
366 |
#define COMMENT 0x10 |
367 |
#define RESERVED 0xe0 |
368 |
|
369 |
#define DEFLATED 8 |
370 |
|
371 |
/* This is the maximum in uboot, so if a uImage overflows this, it would
|
372 |
* overflow on real hardware too. */
|
373 |
#define UBOOT_MAX_GUNZIP_BYTES 0x800000 |
374 |
|
375 |
static ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src, |
376 |
size_t srclen) |
377 |
{ |
378 |
z_stream s; |
379 |
ssize_t dstbytes; |
380 |
int r, i, flags;
|
381 |
|
382 |
/* skip header */
|
383 |
i = 10;
|
384 |
flags = src[3];
|
385 |
if (src[2] != DEFLATED || (flags & RESERVED) != 0) { |
386 |
puts ("Error: Bad gzipped data\n");
|
387 |
return -1; |
388 |
} |
389 |
if ((flags & EXTRA_FIELD) != 0) |
390 |
i = 12 + src[10] + (src[11] << 8); |
391 |
if ((flags & ORIG_NAME) != 0) |
392 |
while (src[i++] != 0) |
393 |
; |
394 |
if ((flags & COMMENT) != 0) |
395 |
while (src[i++] != 0) |
396 |
; |
397 |
if ((flags & HEAD_CRC) != 0) |
398 |
i += 2;
|
399 |
if (i >= srclen) {
|
400 |
puts ("Error: gunzip out of data in header\n");
|
401 |
return -1; |
402 |
} |
403 |
|
404 |
s.zalloc = zalloc; |
405 |
s.zfree = zfree; |
406 |
|
407 |
r = inflateInit2(&s, -MAX_WBITS); |
408 |
if (r != Z_OK) {
|
409 |
printf ("Error: inflateInit2() returned %d\n", r);
|
410 |
return (-1); |
411 |
} |
412 |
s.next_in = src + i; |
413 |
s.avail_in = srclen - i; |
414 |
s.next_out = dst; |
415 |
s.avail_out = dstlen; |
416 |
r = inflate(&s, Z_FINISH); |
417 |
if (r != Z_OK && r != Z_STREAM_END) {
|
418 |
printf ("Error: inflate() returned %d\n", r);
|
419 |
return -1; |
420 |
} |
421 |
dstbytes = s.next_out - (unsigned char *) dst; |
422 |
inflateEnd(&s); |
423 |
|
424 |
return dstbytes;
|
425 |
} |
426 |
|
427 |
/* Load a U-Boot image. */
|
428 |
int load_uimage(const char *filename, target_phys_addr_t *ep, |
429 |
target_phys_addr_t *loadaddr, int *is_linux)
|
430 |
{ |
431 |
int fd;
|
432 |
int size;
|
433 |
uboot_image_header_t h; |
434 |
uboot_image_header_t *hdr = &h; |
435 |
uint8_t *data = NULL;
|
436 |
int ret = -1; |
437 |
|
438 |
fd = open(filename, O_RDONLY | O_BINARY); |
439 |
if (fd < 0) |
440 |
return -1; |
441 |
|
442 |
size = read(fd, hdr, sizeof(uboot_image_header_t));
|
443 |
if (size < 0) |
444 |
goto out;
|
445 |
|
446 |
bswap_uboot_header(hdr); |
447 |
|
448 |
if (hdr->ih_magic != IH_MAGIC)
|
449 |
goto out;
|
450 |
|
451 |
/* TODO: Implement other image types. */
|
452 |
if (hdr->ih_type != IH_TYPE_KERNEL) {
|
453 |
fprintf(stderr, "Can only load u-boot image type \"kernel\"\n");
|
454 |
goto out;
|
455 |
} |
456 |
|
457 |
switch (hdr->ih_comp) {
|
458 |
case IH_COMP_NONE:
|
459 |
case IH_COMP_GZIP:
|
460 |
break;
|
461 |
default:
|
462 |
fprintf(stderr, |
463 |
"Unable to load u-boot images with compression type %d\n",
|
464 |
hdr->ih_comp); |
465 |
goto out;
|
466 |
} |
467 |
|
468 |
/* TODO: Check CPU type. */
|
469 |
if (is_linux) {
|
470 |
if (hdr->ih_os == IH_OS_LINUX)
|
471 |
*is_linux = 1;
|
472 |
else
|
473 |
*is_linux = 0;
|
474 |
} |
475 |
|
476 |
*ep = hdr->ih_ep; |
477 |
data = qemu_malloc(hdr->ih_size); |
478 |
|
479 |
if (read(fd, data, hdr->ih_size) != hdr->ih_size) {
|
480 |
fprintf(stderr, "Error reading file\n");
|
481 |
goto out;
|
482 |
} |
483 |
|
484 |
if (hdr->ih_comp == IH_COMP_GZIP) {
|
485 |
uint8_t *compressed_data; |
486 |
size_t max_bytes; |
487 |
ssize_t bytes; |
488 |
|
489 |
compressed_data = data; |
490 |
max_bytes = UBOOT_MAX_GUNZIP_BYTES; |
491 |
data = qemu_malloc(max_bytes); |
492 |
|
493 |
bytes = gunzip(data, max_bytes, compressed_data, hdr->ih_size); |
494 |
qemu_free(compressed_data); |
495 |
if (bytes < 0) { |
496 |
fprintf(stderr, "Unable to decompress gzipped image!\n");
|
497 |
goto out;
|
498 |
} |
499 |
hdr->ih_size = bytes; |
500 |
} |
501 |
|
502 |
rom_add_blob_fixed(filename, data, hdr->ih_size, hdr->ih_load); |
503 |
|
504 |
if (loadaddr)
|
505 |
*loadaddr = hdr->ih_load; |
506 |
|
507 |
ret = hdr->ih_size; |
508 |
|
509 |
out:
|
510 |
if (data)
|
511 |
qemu_free(data); |
512 |
close(fd); |
513 |
return ret;
|
514 |
} |
515 |
|
516 |
/*
|
517 |
* Functions for reboot-persistent memory regions.
|
518 |
* - used for vga bios and option roms.
|
519 |
* - also linux kernel (-kernel / -initrd).
|
520 |
*/
|
521 |
|
522 |
typedef struct Rom Rom; |
523 |
|
524 |
struct Rom {
|
525 |
char *name;
|
526 |
char *path;
|
527 |
size_t romsize; |
528 |
uint8_t *data; |
529 |
int align;
|
530 |
int isrom;
|
531 |
|
532 |
target_phys_addr_t min; |
533 |
target_phys_addr_t max; |
534 |
target_phys_addr_t addr; |
535 |
QTAILQ_ENTRY(Rom) next; |
536 |
}; |
537 |
|
538 |
static QTAILQ_HEAD(, Rom) roms = QTAILQ_HEAD_INITIALIZER(roms);
|
539 |
int rom_enable_driver_roms;
|
540 |
|
541 |
static void rom_insert(Rom *rom) |
542 |
{ |
543 |
Rom *item; |
544 |
|
545 |
if (roms_loaded) {
|
546 |
hw_error ("ROM images must be loaded at startup\n");
|
547 |
} |
548 |
|
549 |
/* list is ordered by load address */
|
550 |
QTAILQ_FOREACH(item, &roms, next) { |
551 |
if (rom->min >= item->min)
|
552 |
continue;
|
553 |
QTAILQ_INSERT_BEFORE(item, rom, next); |
554 |
return;
|
555 |
} |
556 |
QTAILQ_INSERT_TAIL(&roms, rom, next); |
557 |
} |
558 |
|
559 |
int rom_add_file(const char *file, |
560 |
target_phys_addr_t min, target_phys_addr_t max, int align)
|
561 |
{ |
562 |
Rom *rom; |
563 |
int rc, fd = -1; |
564 |
|
565 |
rom = qemu_mallocz(sizeof(*rom));
|
566 |
rom->name = qemu_strdup(file); |
567 |
rom->path = qemu_find_file(QEMU_FILE_TYPE_BIOS, rom->name); |
568 |
if (rom->path == NULL) { |
569 |
rom->path = qemu_strdup(file); |
570 |
} |
571 |
|
572 |
fd = open(rom->path, O_RDONLY | O_BINARY); |
573 |
if (fd == -1) { |
574 |
fprintf(stderr, "Could not open option rom '%s': %s\n",
|
575 |
rom->path, strerror(errno)); |
576 |
goto err;
|
577 |
} |
578 |
|
579 |
rom->align = align; |
580 |
rom->min = min; |
581 |
rom->max = max; |
582 |
rom->romsize = lseek(fd, 0, SEEK_END);
|
583 |
rom->data = qemu_mallocz(rom->romsize); |
584 |
lseek(fd, 0, SEEK_SET);
|
585 |
rc = read(fd, rom->data, rom->romsize); |
586 |
if (rc != rom->romsize) {
|
587 |
fprintf(stderr, "rom: file %-20s: read error: rc=%d (expected %zd)\n",
|
588 |
rom->name, rc, rom->romsize); |
589 |
goto err;
|
590 |
} |
591 |
close(fd); |
592 |
rom_insert(rom); |
593 |
return 0; |
594 |
|
595 |
err:
|
596 |
if (fd != -1) |
597 |
close(fd); |
598 |
qemu_free(rom->data); |
599 |
qemu_free(rom->path); |
600 |
qemu_free(rom->name); |
601 |
qemu_free(rom); |
602 |
return -1; |
603 |
} |
604 |
|
605 |
int rom_add_blob(const char *name, const void *blob, size_t len, |
606 |
target_phys_addr_t min, target_phys_addr_t max, int align)
|
607 |
{ |
608 |
Rom *rom; |
609 |
|
610 |
rom = qemu_mallocz(sizeof(*rom));
|
611 |
rom->name = qemu_strdup(name); |
612 |
rom->align = align; |
613 |
rom->min = min; |
614 |
rom->max = max; |
615 |
rom->romsize = len; |
616 |
rom->data = qemu_mallocz(rom->romsize); |
617 |
memcpy(rom->data, blob, len); |
618 |
rom_insert(rom); |
619 |
return 0; |
620 |
} |
621 |
|
622 |
int rom_add_vga(const char *file) |
623 |
{ |
624 |
if (!rom_enable_driver_roms)
|
625 |
return 0; |
626 |
return rom_add_file(file, PC_ROM_MIN_VGA, PC_ROM_MAX, PC_ROM_ALIGN);
|
627 |
} |
628 |
|
629 |
int rom_add_option(const char *file) |
630 |
{ |
631 |
if (!rom_enable_driver_roms)
|
632 |
return 0; |
633 |
return rom_add_file(file, PC_ROM_MIN_OPTION, PC_ROM_MAX, PC_ROM_ALIGN);
|
634 |
} |
635 |
|
636 |
static void rom_reset(void *unused) |
637 |
{ |
638 |
Rom *rom; |
639 |
|
640 |
QTAILQ_FOREACH(rom, &roms, next) { |
641 |
if (rom->data == NULL) |
642 |
continue;
|
643 |
cpu_physical_memory_write_rom(rom->addr, rom->data, rom->romsize); |
644 |
if (rom->isrom) {
|
645 |
/* rom needs to be written only once */
|
646 |
qemu_free(rom->data); |
647 |
rom->data = NULL;
|
648 |
} |
649 |
} |
650 |
} |
651 |
|
652 |
int rom_load_all(void) |
653 |
{ |
654 |
target_phys_addr_t addr = 0;
|
655 |
int memtype;
|
656 |
Rom *rom; |
657 |
|
658 |
QTAILQ_FOREACH(rom, &roms, next) { |
659 |
if (addr < rom->min)
|
660 |
addr = rom->min; |
661 |
if (rom->max) {
|
662 |
/* load address range */
|
663 |
if (rom->align) {
|
664 |
addr += (rom->align-1);
|
665 |
addr &= ~(rom->align-1);
|
666 |
} |
667 |
if (addr + rom->romsize > rom->max) {
|
668 |
fprintf(stderr, "rom: out of memory (rom %s, "
|
669 |
"addr 0x" TARGET_FMT_plx
|
670 |
", size 0x%zx, max 0x" TARGET_FMT_plx ")\n", |
671 |
rom->name, addr, rom->romsize, rom->max); |
672 |
return -1; |
673 |
} |
674 |
} else {
|
675 |
/* fixed address requested */
|
676 |
if (addr != rom->min) {
|
677 |
fprintf(stderr, "rom: requested regions overlap "
|
678 |
"(rom %s. free=0x" TARGET_FMT_plx
|
679 |
", addr=0x" TARGET_FMT_plx ")\n", |
680 |
rom->name, addr, rom->min); |
681 |
return -1; |
682 |
} |
683 |
} |
684 |
rom->addr = addr; |
685 |
addr += rom->romsize; |
686 |
memtype = cpu_get_physical_page_desc(rom->addr) & (3 << IO_MEM_SHIFT);
|
687 |
if (memtype == IO_MEM_ROM)
|
688 |
rom->isrom = 1;
|
689 |
} |
690 |
qemu_register_reset(rom_reset, NULL);
|
691 |
roms_loaded = 1;
|
692 |
return 0; |
693 |
} |
694 |
|
695 |
static Rom *find_rom(target_phys_addr_t addr)
|
696 |
{ |
697 |
Rom *rom; |
698 |
|
699 |
QTAILQ_FOREACH(rom, &roms, next) { |
700 |
if (rom->max)
|
701 |
continue;
|
702 |
if (rom->min > addr)
|
703 |
continue;
|
704 |
if (rom->min + rom->romsize < addr)
|
705 |
continue;
|
706 |
return rom;
|
707 |
} |
708 |
return NULL; |
709 |
} |
710 |
|
711 |
int rom_copy(uint8_t *dest, target_phys_addr_t addr, size_t size)
|
712 |
{ |
713 |
target_phys_addr_t end = addr + size; |
714 |
uint8_t *s, *d = dest; |
715 |
size_t l = 0;
|
716 |
Rom *rom; |
717 |
|
718 |
QTAILQ_FOREACH(rom, &roms, next) { |
719 |
if (rom->max)
|
720 |
continue;
|
721 |
if (rom->min + rom->romsize < addr)
|
722 |
continue;
|
723 |
if (rom->min > end)
|
724 |
break;
|
725 |
if (!rom->data)
|
726 |
continue;
|
727 |
|
728 |
d = dest + (rom->min - addr); |
729 |
s = rom->data; |
730 |
l = rom->romsize; |
731 |
|
732 |
if (rom->min < addr) {
|
733 |
d = dest; |
734 |
s += (addr - rom->min); |
735 |
l -= (addr - rom->min); |
736 |
} |
737 |
if ((d + l) > (dest + size)) {
|
738 |
l = dest - d; |
739 |
} |
740 |
|
741 |
memcpy(d, s, l); |
742 |
} |
743 |
|
744 |
return (d + l) - dest;
|
745 |
} |
746 |
|
747 |
void *rom_ptr(target_phys_addr_t addr)
|
748 |
{ |
749 |
Rom *rom; |
750 |
|
751 |
rom = find_rom(addr); |
752 |
if (!rom || !rom->data)
|
753 |
return NULL; |
754 |
return rom->data + (addr - rom->min);
|
755 |
} |
756 |
|
757 |
void do_info_roms(Monitor *mon)
|
758 |
{ |
759 |
Rom *rom; |
760 |
|
761 |
QTAILQ_FOREACH(rom, &roms, next) { |
762 |
monitor_printf(mon, "addr=" TARGET_FMT_plx
|
763 |
" size=0x%06zx mem=%s name=\"%s\" \n",
|
764 |
rom->addr, rom->romsize, |
765 |
rom->isrom ? "rom" : "ram", |
766 |
rom->name); |
767 |
} |
768 |
} |