--- /dev/null
+/*
+ * QEMU Executable loader
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * Gunzip functionality in this file is derived from u-boot:
+ *
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hw/hw.h"
+#include "disas/disas.h"
+#include "monitor/monitor.h"
+#include "sysemu/sysemu.h"
+#include "uboot_image.h"
+#include "hw/loader.h"
+#include "hw/nvram/fw_cfg.h"
+#include "exec/memory.h"
+#include "exec/address-spaces.h"
+
+#include <zlib.h>
+
+bool option_rom_has_mr = false;
+bool rom_file_has_mr = true;
+
+static int roms_loaded;
+
+/* return the size or -1 if error */
+int get_image_size(const char *filename)
+{
+ int fd, size;
+ fd = open(filename, O_RDONLY | O_BINARY);
+ if (fd < 0)
+ return -1;
+ size = lseek(fd, 0, SEEK_END);
+ close(fd);
+ return size;
+}
+
+/* return the size or -1 if error */
+/* deprecated, because caller does not specify buffer size! */
+int load_image(const char *filename, uint8_t *addr)
+{
+ int fd, size;
+ fd = open(filename, O_RDONLY | O_BINARY);
+ if (fd < 0)
+ return -1;
+ size = lseek(fd, 0, SEEK_END);
+ if (size == -1) {
+ fprintf(stderr, "file %-20s: get size error: %s\n",
+ filename, strerror(errno));
+ close(fd);
+ return -1;
+ }
+
+ lseek(fd, 0, SEEK_SET);
+ if (read(fd, addr, size) != size) {
+ close(fd);
+ return -1;
+ }
+ close(fd);
+ return size;
+}
+
+/* return the size or -1 if error */
+ssize_t load_image_size(const char *filename, void *addr, size_t size)
+{
+ int fd;
+ ssize_t actsize;
+
+ fd = open(filename, O_RDONLY | O_BINARY);
+ if (fd < 0) {
+ return -1;
+ }
+
+ actsize = read(fd, addr, size);
+ if (actsize < 0) {
+ close(fd);
+ return -1;
+ }
+ close(fd);
+
+ return actsize;
+}
+
+/* read()-like version */
+ssize_t read_targphys(const char *name,
+ int fd, hwaddr dst_addr, size_t nbytes)
+{
+ uint8_t *buf;
+ ssize_t did;
+
+ buf = g_malloc(nbytes);
+ did = read(fd, buf, nbytes);
+ if (did > 0)
+ rom_add_blob_fixed("read", buf, did, dst_addr);
+ g_free(buf);
+ return did;
+}
+
+/* return the size or -1 if error */
+int load_image_targphys(const char *filename,
+ hwaddr addr, uint64_t max_sz)
+{
+ int size;
+
+ size = get_image_size(filename);
+ if (size > max_sz) {
+ return -1;
+ }
+ if (size > 0) {
+ rom_add_file_fixed(filename, addr, -1);
+ }
+ return size;
+}
+
+void pstrcpy_targphys(const char *name, hwaddr dest, int buf_size,
+ const char *source)
+{
+ const char *nulp;
+ char *ptr;
+
+ if (buf_size <= 0) return;
+ nulp = memchr(source, 0, buf_size);
+ if (nulp) {
+ rom_add_blob_fixed(name, source, (nulp - source) + 1, dest);
+ } else {
+ rom_add_blob_fixed(name, source, buf_size, dest);
+ ptr = rom_ptr(dest + buf_size - 1);
+ *ptr = 0;
+ }
+}
+
+/* A.OUT loader */
+
+struct exec
+{
+ uint32_t a_info; /* Use macros N_MAGIC, etc for access */
+ uint32_t a_text; /* length of text, in bytes */
+ uint32_t a_data; /* length of data, in bytes */
+ uint32_t a_bss; /* length of uninitialized data area, in bytes */
+ uint32_t a_syms; /* length of symbol table data in file, in bytes */
+ uint32_t a_entry; /* start address */
+ uint32_t a_trsize; /* length of relocation info for text, in bytes */
+ uint32_t a_drsize; /* length of relocation info for data, in bytes */
+};
+
+static void bswap_ahdr(struct exec *e)
+{
+ bswap32s(&e->a_info);
+ bswap32s(&e->a_text);
+ bswap32s(&e->a_data);
+ bswap32s(&e->a_bss);
+ bswap32s(&e->a_syms);
+ bswap32s(&e->a_entry);
+ bswap32s(&e->a_trsize);
+ bswap32s(&e->a_drsize);
+}
+
+#define N_MAGIC(exec) ((exec).a_info & 0xffff)
+#define OMAGIC 0407
+#define NMAGIC 0410
+#define ZMAGIC 0413
+#define QMAGIC 0314
+#define _N_HDROFF(x) (1024 - sizeof (struct exec))
+#define N_TXTOFF(x) \
+ (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \
+ (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec)))
+#define N_TXTADDR(x, target_page_size) (N_MAGIC(x) == QMAGIC ? target_page_size : 0)
+#define _N_SEGMENT_ROUND(x, target_page_size) (((x) + target_page_size - 1) & ~(target_page_size - 1))
+
+#define _N_TXTENDADDR(x, target_page_size) (N_TXTADDR(x, target_page_size)+(x).a_text)
+
+#define N_DATADDR(x, target_page_size) \
+ (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x, target_page_size)) \
+ : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x, target_page_size), target_page_size)))
+
+
+int load_aout(const char *filename, hwaddr addr, int max_sz,
+ int bswap_needed, hwaddr target_page_size)
+{
+ int fd;
+ ssize_t size, ret;
+ struct exec e;
+ uint32_t magic;
+
+ fd = open(filename, O_RDONLY | O_BINARY);
+ if (fd < 0)
+ return -1;
+
+ size = read(fd, &e, sizeof(e));
+ if (size < 0)
+ goto fail;
+
+ if (bswap_needed) {
+ bswap_ahdr(&e);
+ }
+
+ magic = N_MAGIC(e);
+ switch (magic) {
+ case ZMAGIC:
+ case QMAGIC:
+ case OMAGIC:
+ if (e.a_text + e.a_data > max_sz)
+ goto fail;
+ lseek(fd, N_TXTOFF(e), SEEK_SET);
+ size = read_targphys(filename, fd, addr, e.a_text + e.a_data);
+ if (size < 0)
+ goto fail;
+ break;
+ case NMAGIC:
+ if (N_DATADDR(e, target_page_size) + e.a_data > max_sz)
+ goto fail;
+ lseek(fd, N_TXTOFF(e), SEEK_SET);
+ size = read_targphys(filename, fd, addr, e.a_text);
+ if (size < 0)
+ goto fail;
+ ret = read_targphys(filename, fd, addr + N_DATADDR(e, target_page_size),
+ e.a_data);
+ if (ret < 0)
+ goto fail;
+ size += ret;
+ break;
+ default:
+ goto fail;
+ }
+ close(fd);
+ return size;
+ fail:
+ close(fd);
+ return -1;
+}
+
+/* ELF loader */
+
+static void *load_at(int fd, off_t offset, size_t size)
+{
+ void *ptr;
+ if (lseek(fd, offset, SEEK_SET) < 0)
+ return NULL;
+ ptr = g_malloc(size);
+ if (read(fd, ptr, size) != size) {
+ g_free(ptr);
+ return NULL;
+ }
+ return ptr;
+}
+
+#ifdef ELF_CLASS
+#undef ELF_CLASS
+#endif
+
+#define ELF_CLASS ELFCLASS32
+#include "elf.h"
+
+#define SZ 32
+#define elf_word uint32_t
+#define elf_sword int32_t
+#define bswapSZs bswap32s
+#include "hw/elf_ops.h"
+
+#undef elfhdr
+#undef elf_phdr
+#undef elf_shdr
+#undef elf_sym
+#undef elf_rela
+#undef elf_note
+#undef elf_word
+#undef elf_sword
+#undef bswapSZs
+#undef SZ
+#define elfhdr elf64_hdr
+#define elf_phdr elf64_phdr
+#define elf_note elf64_note
+#define elf_shdr elf64_shdr
+#define elf_sym elf64_sym
+#define elf_rela elf64_rela
+#define elf_word uint64_t
+#define elf_sword int64_t
+#define bswapSZs bswap64s
+#define SZ 64
+#include "hw/elf_ops.h"
+
+const char *load_elf_strerror(int error)
+{
+ switch (error) {
+ case 0:
+ return "No error";
+ case ELF_LOAD_FAILED:
+ return "Failed to load ELF";
+ case ELF_LOAD_NOT_ELF:
+ return "The image is not ELF";
+ case ELF_LOAD_WRONG_ARCH:
+ return "The image is from incompatible architecture";
+ case ELF_LOAD_WRONG_ENDIAN:
+ return "The image has incorrect endianness";
+ default:
+ return "Unknown error";
+ }
+}
+
+/* return < 0 if error, otherwise the number of bytes loaded in memory */
+int load_elf(const char *filename, uint64_t (*translate_fn)(void *, uint64_t),
+ void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
+ uint64_t *highaddr, int big_endian, int elf_machine, int clear_lsb)
+{
+ int fd, data_order, target_data_order, must_swab, ret = ELF_LOAD_FAILED;
+ uint8_t e_ident[EI_NIDENT];
+
+ fd = open(filename, O_RDONLY | O_BINARY);
+ if (fd < 0) {
+ perror(filename);
+ return -1;
+ }
+ if (read(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident))
+ goto fail;
+ if (e_ident[0] != ELFMAG0 ||
+ e_ident[1] != ELFMAG1 ||
+ e_ident[2] != ELFMAG2 ||
+ e_ident[3] != ELFMAG3) {
+ ret = ELF_LOAD_NOT_ELF;
+ goto fail;
+ }
+#ifdef HOST_WORDS_BIGENDIAN
+ data_order = ELFDATA2MSB;
+#else
+ data_order = ELFDATA2LSB;
+#endif
+ must_swab = data_order != e_ident[EI_DATA];
+ if (big_endian) {
+ target_data_order = ELFDATA2MSB;
+ } else {
+ target_data_order = ELFDATA2LSB;
+ }
+
+ if (target_data_order != e_ident[EI_DATA]) {
+ ret = ELF_LOAD_WRONG_ENDIAN;
+ goto fail;
+ }
+
+ lseek(fd, 0, SEEK_SET);
+ if (e_ident[EI_CLASS] == ELFCLASS64) {
+ ret = load_elf64(filename, fd, translate_fn, translate_opaque, must_swab,
+ pentry, lowaddr, highaddr, elf_machine, clear_lsb);
+ } else {
+ ret = load_elf32(filename, fd, translate_fn, translate_opaque, must_swab,
+ pentry, lowaddr, highaddr, elf_machine, clear_lsb);
+ }
+
+ fail:
+ close(fd);
+ return ret;
+}
+
+static void bswap_uboot_header(uboot_image_header_t *hdr)
+{
+#ifndef HOST_WORDS_BIGENDIAN
+ bswap32s(&hdr->ih_magic);
+ bswap32s(&hdr->ih_hcrc);
+ bswap32s(&hdr->ih_time);
+ bswap32s(&hdr->ih_size);
+ bswap32s(&hdr->ih_load);
+ bswap32s(&hdr->ih_ep);
+ bswap32s(&hdr->ih_dcrc);
+#endif
+}
+
+
+#define ZALLOC_ALIGNMENT 16
+
+static void *zalloc(void *x, unsigned items, unsigned size)
+{
+ void *p;
+
+ size *= items;
+ size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
+
+ p = g_malloc(size);
+
+ return (p);
+}
+
+static void zfree(void *x, void *addr)
+{
+ g_free(addr);
+}
+
+
+#define HEAD_CRC 2
+#define EXTRA_FIELD 4
+#define ORIG_NAME 8
+#define COMMENT 0x10
+#define RESERVED 0xe0
+
+#define DEFLATED 8
+
+/* This is the usual maximum in uboot, so if a uImage overflows this, it would
+ * overflow on real hardware too. */
+#define UBOOT_MAX_GUNZIP_BYTES (64 << 20)
+
+static ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src,
+ size_t srclen)
+{
+ z_stream s;
+ ssize_t dstbytes;
+ int r, i, flags;
+
+ /* skip header */
+ i = 10;
+ flags = src[3];
+ if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
+ puts ("Error: Bad gzipped data\n");
+ return -1;
+ }
+ if ((flags & EXTRA_FIELD) != 0)
+ i = 12 + src[10] + (src[11] << 8);
+ if ((flags & ORIG_NAME) != 0)
+ while (src[i++] != 0)
+ ;
+ if ((flags & COMMENT) != 0)
+ while (src[i++] != 0)
+ ;
+ if ((flags & HEAD_CRC) != 0)
+ i += 2;
+ if (i >= srclen) {
+ puts ("Error: gunzip out of data in header\n");
+ return -1;
+ }
+
+ s.zalloc = zalloc;
+ s.zfree = zfree;
+
+ r = inflateInit2(&s, -MAX_WBITS);
+ if (r != Z_OK) {
+ printf ("Error: inflateInit2() returned %d\n", r);
+ return (-1);
+ }
+ s.next_in = src + i;
+ s.avail_in = srclen - i;
+ s.next_out = dst;
+ s.avail_out = dstlen;
+ r = inflate(&s, Z_FINISH);
+ if (r != Z_OK && r != Z_STREAM_END) {
+ printf ("Error: inflate() returned %d\n", r);
+ return -1;
+ }
+ dstbytes = s.next_out - (unsigned char *) dst;
+ inflateEnd(&s);
+
+ return dstbytes;
+}
+
+/* Load a U-Boot image. */
+static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr,
+ int *is_linux, uint8_t image_type,
+ uint64_t (*translate_fn)(void *, uint64_t),
+ void *translate_opaque)
+{
+ int fd;
+ int size;
+ hwaddr address;
+ uboot_image_header_t h;
+ uboot_image_header_t *hdr = &h;
+ uint8_t *data = NULL;
+ int ret = -1;
+ int do_uncompress = 0;
+
+ fd = open(filename, O_RDONLY | O_BINARY);
+ if (fd < 0)
+ return -1;
+
+ size = read(fd, hdr, sizeof(uboot_image_header_t));
+ if (size < 0)
+ goto out;
+
+ bswap_uboot_header(hdr);
+
+ if (hdr->ih_magic != IH_MAGIC)
+ goto out;
+
+ if (hdr->ih_type != image_type) {
+ fprintf(stderr, "Wrong image type %d, expected %d\n", hdr->ih_type,
+ image_type);
+ goto out;
+ }
+
+ /* TODO: Implement other image types. */
+ switch (hdr->ih_type) {
+ case IH_TYPE_KERNEL:
+ address = hdr->ih_load;
+ if (translate_fn) {
+ address = translate_fn(translate_opaque, address);
+ }
+ if (loadaddr) {
+ *loadaddr = hdr->ih_load;
+ }
+
+ switch (hdr->ih_comp) {
+ case IH_COMP_NONE:
+ break;
+ case IH_COMP_GZIP:
+ do_uncompress = 1;
+ break;
+ default:
+ fprintf(stderr,
+ "Unable to load u-boot images with compression type %d\n",
+ hdr->ih_comp);
+ goto out;
+ }
+
+ if (ep) {
+ *ep = hdr->ih_ep;
+ }
+
+ /* TODO: Check CPU type. */
+ if (is_linux) {
+ if (hdr->ih_os == IH_OS_LINUX) {
+ *is_linux = 1;
+ } else {
+ *is_linux = 0;
+ }
+ }
+
+ break;
+ case IH_TYPE_RAMDISK:
+ address = *loadaddr;
+ break;
+ default:
+ fprintf(stderr, "Unsupported u-boot image type %d\n", hdr->ih_type);
+ goto out;
+ }
+
+ data = g_malloc(hdr->ih_size);
+
+ if (read(fd, data, hdr->ih_size) != hdr->ih_size) {
+ fprintf(stderr, "Error reading file\n");
+ goto out;
+ }
+
+ if (do_uncompress) {
+ uint8_t *compressed_data;
+ size_t max_bytes;
+ ssize_t bytes;
+
+ compressed_data = data;
+ max_bytes = UBOOT_MAX_GUNZIP_BYTES;
+ data = g_malloc(max_bytes);
+
+ bytes = gunzip(data, max_bytes, compressed_data, hdr->ih_size);
+ g_free(compressed_data);
+ if (bytes < 0) {
+ fprintf(stderr, "Unable to decompress gzipped image!\n");
+ goto out;
+ }
+ hdr->ih_size = bytes;
+ }
+
+ rom_add_blob_fixed(filename, data, hdr->ih_size, address);
+
+ ret = hdr->ih_size;
+
+out:
+ if (data)
+ g_free(data);
+ close(fd);
+ return ret;
+}
+
+int load_uimage(const char *filename, hwaddr *ep, hwaddr *loadaddr,
+ int *is_linux,
+ uint64_t (*translate_fn)(void *, uint64_t),
+ void *translate_opaque)
+{
+ return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL,
+ translate_fn, translate_opaque);
+}
+
+/* Load a ramdisk. */
+int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz)
+{
+ return load_uboot_image(filename, NULL, &addr, NULL, IH_TYPE_RAMDISK,
+ NULL, NULL);
+}
+
+/* Load a gzip-compressed kernel to a dynamically allocated buffer. */
+int load_image_gzipped_buffer(const char *filename, uint64_t max_sz,
+ uint8_t **buffer)
+{
+ uint8_t *compressed_data = NULL;
+ uint8_t *data = NULL;
+ gsize len;
+ ssize_t bytes;
+ int ret = -1;
+
+ if (!g_file_get_contents(filename, (char **) &compressed_data, &len,
+ NULL)) {
+ goto out;
+ }
+
+ /* Is it a gzip-compressed file? */
+ if (len < 2 ||
+ compressed_data[0] != 0x1f ||
+ compressed_data[1] != 0x8b) {
+ goto out;
+ }
+
+ if (max_sz > LOAD_IMAGE_MAX_GUNZIP_BYTES) {
+ max_sz = LOAD_IMAGE_MAX_GUNZIP_BYTES;
+ }
+
+ data = g_malloc(max_sz);
+ bytes = gunzip(data, max_sz, compressed_data, len);
+ if (bytes < 0) {
+ fprintf(stderr, "%s: unable to decompress gzipped kernel file\n",
+ filename);
+ goto out;
+ }
+
+ /* trim to actual size and return to caller */
+ *buffer = g_realloc(data, bytes);
+ ret = bytes;
+ /* ownership has been transferred to caller */
+ data = NULL;
+
+ out:
+ g_free(compressed_data);
+ g_free(data);
+ return ret;
+}
+
+/* Load a gzip-compressed kernel. */
+int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz)
+{
+ int bytes;
+ uint8_t *data;
+
+ bytes = load_image_gzipped_buffer(filename, max_sz, &data);
+ if (bytes != -1) {
+ rom_add_blob_fixed(filename, data, bytes, addr);
+ g_free(data);
+ }
+ return bytes;
+}
+
+/*
+ * Functions for reboot-persistent memory regions.
+ * - used for vga bios and option roms.
+ * - also linux kernel (-kernel / -initrd).
+ */
+
+typedef struct Rom Rom;
+
+struct Rom {
+ char *name;
+ char *path;
+
+ /* datasize is the amount of memory allocated in "data". If datasize is less
+ * than romsize, it means that the area from datasize to romsize is filled
+ * with zeros.
+ */
+ size_t romsize;
+ size_t datasize;
+
+ uint8_t *data;
+ MemoryRegion *mr;
+ int isrom;
+ char *fw_dir;
+ char *fw_file;
+
+ hwaddr addr;
+ QTAILQ_ENTRY(Rom) next;
+};
+
+static FWCfgState *fw_cfg;
+static QTAILQ_HEAD(, Rom) roms = QTAILQ_HEAD_INITIALIZER(roms);
+
+static void rom_insert(Rom *rom)
+{
+ Rom *item;
+
+ if (roms_loaded) {
+ hw_error ("ROM images must be loaded at startup\n");
+ }
+
+ /* list is ordered by load address */
+ QTAILQ_FOREACH(item, &roms, next) {
+ if (rom->addr >= item->addr)
+ continue;
+ QTAILQ_INSERT_BEFORE(item, rom, next);
+ return;
+ }
+ QTAILQ_INSERT_TAIL(&roms, rom, next);
+}
+
+static void fw_cfg_resized(const char *id, uint64_t length, void *host)
+{
+ if (fw_cfg) {
+ fw_cfg_modify_file(fw_cfg, id + strlen("/rom@"), host, length);
+ }
+}
+
+static void *rom_set_mr(Rom *rom, Object *owner, const char *name)
+{
+ void *data;
+
+ rom->mr = g_malloc(sizeof(*rom->mr));
+ memory_region_init_resizeable_ram(rom->mr, owner, name,
+ rom->datasize, rom->romsize,
+ fw_cfg_resized,
+ &error_abort);
+ memory_region_set_readonly(rom->mr, true);
+ vmstate_register_ram_global(rom->mr);
+
+ data = memory_region_get_ram_ptr(rom->mr);
+ memcpy(data, rom->data, rom->datasize);
+
+ return data;
+}
+
+int rom_add_file(const char *file, const char *fw_dir,
+ hwaddr addr, int32_t bootindex,
+ bool option_rom)
+{
+ Rom *rom;
+ int rc, fd = -1;
+ char devpath[100];
+
+ rom = g_malloc0(sizeof(*rom));
+ rom->name = g_strdup(file);
+ rom->path = qemu_find_file(QEMU_FILE_TYPE_BIOS, rom->name);
+ if (rom->path == NULL) {
+ rom->path = g_strdup(file);
+ }
+
+ fd = open(rom->path, O_RDONLY | O_BINARY);
+ if (fd == -1) {
+ fprintf(stderr, "Could not open option rom '%s': %s\n",
+ rom->path, strerror(errno));
+ goto err;
+ }
+
+ if (fw_dir) {
+ rom->fw_dir = g_strdup(fw_dir);
+ rom->fw_file = g_strdup(file);
+ }
+ rom->addr = addr;
+ rom->romsize = lseek(fd, 0, SEEK_END);
+ if (rom->romsize == -1) {
+ fprintf(stderr, "rom: file %-20s: get size error: %s\n",
+ rom->name, strerror(errno));
+ goto err;
+ }
+
+ rom->datasize = rom->romsize;
+ rom->data = g_malloc0(rom->datasize);
+ lseek(fd, 0, SEEK_SET);
+ rc = read(fd, rom->data, rom->datasize);
+ if (rc != rom->datasize) {
+ fprintf(stderr, "rom: file %-20s: read error: rc=%d (expected %zd)\n",
+ rom->name, rc, rom->datasize);
+ goto err;
+ }
+ close(fd);
+ rom_insert(rom);
+ if (rom->fw_file && fw_cfg) {
+ const char *basename;
+ char fw_file_name[FW_CFG_MAX_FILE_PATH];
+ void *data;
+
+ basename = strrchr(rom->fw_file, '/');
+ if (basename) {
+ basename++;
+ } else {
+ basename = rom->fw_file;
+ }
+ snprintf(fw_file_name, sizeof(fw_file_name), "%s/%s", rom->fw_dir,
+ basename);
+ snprintf(devpath, sizeof(devpath), "/rom@%s", fw_file_name);
+
+ if ((!option_rom || option_rom_has_mr) && rom_file_has_mr) {
+ data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
+ } else {
+ data = rom->data;
+ }
+
+ fw_cfg_add_file(fw_cfg, fw_file_name, data, rom->romsize);
+ } else {
+ snprintf(devpath, sizeof(devpath), "/rom@" TARGET_FMT_plx, addr);
+ }
+
+ add_boot_device_path(bootindex, NULL, devpath);
+ return 0;
+
+err:
+ if (fd != -1)
+ close(fd);
+ g_free(rom->data);
+ g_free(rom->path);
+ g_free(rom->name);
+ g_free(rom);
+ return -1;
+}
+
+MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
+ size_t max_len, hwaddr addr, const char *fw_file_name,
+ FWCfgReadCallback fw_callback, void *callback_opaque)
+{
+ Rom *rom;
+ MemoryRegion *mr = NULL;
+
+ rom = g_malloc0(sizeof(*rom));
+ rom->name = g_strdup(name);
+ rom->addr = addr;
+ rom->romsize = max_len ? max_len : len;
+ rom->datasize = len;
+ rom->data = g_malloc0(rom->datasize);
+ memcpy(rom->data, blob, len);
+ rom_insert(rom);
+ if (fw_file_name && fw_cfg) {
+ char devpath[100];
+ void *data;
+
+ snprintf(devpath, sizeof(devpath), "/rom@%s", fw_file_name);
+
+ if (rom_file_has_mr) {
+ data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
+ mr = rom->mr;
+ } else {
+ data = rom->data;
+ }
+
+ fw_cfg_add_file_callback(fw_cfg, fw_file_name,
+ fw_callback, callback_opaque,
+ data, rom->datasize);
+ }
+ return mr;
+}
+
+/* This function is specific for elf program because we don't need to allocate
+ * all the rom. We just allocate the first part and the rest is just zeros. This
+ * is why romsize and datasize are different. Also, this function seize the
+ * memory ownership of "data", so we don't have to allocate and copy the buffer.
+ */
+int rom_add_elf_program(const char *name, void *data, size_t datasize,
+ size_t romsize, hwaddr addr)
+{
+ Rom *rom;
+
+ rom = g_malloc0(sizeof(*rom));
+ rom->name = g_strdup(name);
+ rom->addr = addr;
+ rom->datasize = datasize;
+ rom->romsize = romsize;
+ rom->data = data;
+ rom_insert(rom);
+ return 0;
+}
+
+int rom_add_vga(const char *file)
+{
+ return rom_add_file(file, "vgaroms", 0, -1, true);
+}
+
+int rom_add_option(const char *file, int32_t bootindex)
+{
+ return rom_add_file(file, "genroms", 0, bootindex, true);
+}
+
+static void rom_reset(void *unused)
+{
+ Rom *rom;
+
+ QTAILQ_FOREACH(rom, &roms, next) {
+ if (rom->fw_file) {
+ continue;
+ }
+ if (rom->data == NULL) {
+ continue;
+ }
+ if (rom->mr) {
+ void *host = memory_region_get_ram_ptr(rom->mr);
+ memcpy(host, rom->data, rom->datasize);
+ } else {
+ cpu_physical_memory_write_rom(&address_space_memory,
+ rom->addr, rom->data, rom->datasize);
+ }
+ if (rom->isrom) {
+ /* rom needs to be written only once */
+ g_free(rom->data);
+ rom->data = NULL;
+ }
+ /*
+ * The rom loader is really on the same level as firmware in the guest
+ * shadowing a ROM into RAM. Such a shadowing mechanism needs to ensure
+ * that the instruction cache for that new region is clear, so that the
+ * CPU definitely fetches its instructions from the just written data.
+ */
+ cpu_flush_icache_range(rom->addr, rom->datasize);
+ }
+}
+
+int rom_check_and_register_reset(void)
+{
+ hwaddr addr = 0;
+ MemoryRegionSection section;
+ Rom *rom;
+
+ QTAILQ_FOREACH(rom, &roms, next) {
+ if (rom->fw_file) {
+ continue;
+ }
+ if (addr > rom->addr) {
+ fprintf(stderr, "rom: requested regions overlap "
+ "(rom %s. free=0x" TARGET_FMT_plx
+ ", addr=0x" TARGET_FMT_plx ")\n",
+ rom->name, addr, rom->addr);
+ return -1;
+ }
+ addr = rom->addr;
+ addr += rom->romsize;
+ section = memory_region_find(get_system_memory(), rom->addr, 1);
+ rom->isrom = int128_nz(section.size) && memory_region_is_rom(section.mr);
+ memory_region_unref(section.mr);
+ }
+ qemu_register_reset(rom_reset, NULL);
+ roms_loaded = 1;
+ return 0;
+}
+
+void rom_set_fw(FWCfgState *f)
+{
+ fw_cfg = f;
+}
+
+static Rom *find_rom(hwaddr addr)
+{
+ Rom *rom;
+
+ QTAILQ_FOREACH(rom, &roms, next) {
+ if (rom->fw_file) {
+ continue;
+ }
+ if (rom->mr) {
+ continue;
+ }
+ if (rom->addr > addr) {
+ continue;
+ }
+ if (rom->addr + rom->romsize < addr) {
+ continue;
+ }
+ return rom;
+ }
+ return NULL;
+}
+
+/*
+ * Copies memory from registered ROMs to dest. Any memory that is contained in
+ * a ROM between addr and addr + size is copied. Note that this can involve
+ * multiple ROMs, which need not start at addr and need not end at addr + size.
+ */
+int rom_copy(uint8_t *dest, hwaddr addr, size_t size)
+{
+ hwaddr end = addr + size;
+ uint8_t *s, *d = dest;
+ size_t l = 0;
+ Rom *rom;
+
+ QTAILQ_FOREACH(rom, &roms, next) {
+ if (rom->fw_file) {
+ continue;
+ }
+ if (rom->mr) {
+ continue;
+ }
+ if (rom->addr + rom->romsize < addr) {
+ continue;
+ }
+ if (rom->addr > end) {
+ break;
+ }
+
+ d = dest + (rom->addr - addr);
+ s = rom->data;
+ l = rom->datasize;
+
+ if ((d + l) > (dest + size)) {
+ l = dest - d;
+ }
+
+ if (l > 0) {
+ memcpy(d, s, l);
+ }
+
+ if (rom->romsize > rom->datasize) {
+ /* If datasize is less than romsize, it means that we didn't
+ * allocate all the ROM because the trailing data are only zeros.
+ */
+
+ d += l;
+ l = rom->romsize - rom->datasize;
+
+ if ((d + l) > (dest + size)) {
+ /* Rom size doesn't fit in the destination area. Adjust to avoid
+ * overflow.
+ */
+ l = dest - d;
+ }
+
+ if (l > 0) {
+ memset(d, 0x0, l);
+ }
+ }
+ }
+
+ return (d + l) - dest;
+}
+
+void *rom_ptr(hwaddr addr)
+{
+ Rom *rom;
+
+ rom = find_rom(addr);
+ if (!rom || !rom->data)
+ return NULL;
+ return rom->data + (addr - rom->addr);
+}
+
+void hmp_info_roms(Monitor *mon, const QDict *qdict)
+{
+ Rom *rom;
+
+ QTAILQ_FOREACH(rom, &roms, next) {
+ if (rom->mr) {
+ monitor_printf(mon, "%s"
+ " size=0x%06zx name=\"%s\"\n",
+ memory_region_name(rom->mr),
+ rom->romsize,
+ rom->name);
+ } else if (!rom->fw_file) {
+ monitor_printf(mon, "addr=" TARGET_FMT_plx
+ " size=0x%06zx mem=%s name=\"%s\"\n",
+ rom->addr, rom->romsize,
+ rom->isrom ? "rom" : "ram",
+ rom->name);
+ } else {
+ monitor_printf(mon, "fw=%s/%s"
+ " size=0x%06zx name=\"%s\"\n",
+ rom->fw_dir,
+ rom->fw_file,
+ rom->romsize,
+ rom->name);
+ }
+ }
+}
Code Review / kvmfornfv.git / blobdiff