#include <zlib.h>
-bool rom_file_in_ram = true;
+bool option_rom_has_mr = false;
+bool rom_file_has_mr = true;
static int roms_loaded;
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 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)
#undef elf_phdr
#undef elf_shdr
#undef elf_sym
+#undef elf_rela
#undef elf_note
#undef elf_word
#undef elf_sword
#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;
+ 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 (e_ident[0] != ELFMAG0 ||
e_ident[1] != ELFMAG1 ||
e_ident[2] != ELFMAG2 ||
- e_ident[3] != ELFMAG3)
+ e_ident[3] != ELFMAG3) {
+ ret = ELF_LOAD_NOT_ELF;
goto fail;
+ }
#ifdef HOST_WORDS_BIGENDIAN
data_order = ELFDATA2MSB;
#else
}
if (target_data_order != e_ident[EI_DATA]) {
+ ret = ELF_LOAD_WRONG_ENDIAN;
goto fail;
}
pentry, lowaddr, highaddr, elf_machine, clear_lsb);
}
- close(fd);
- return ret;
-
fail:
close(fd);
- return -1;
+ return ret;
}
static void bswap_uboot_header(uboot_image_header_t *hdr)
/* Load a U-Boot image. */
static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr,
- int *is_linux, uint8_t image_type)
+ int *is_linux, uint8_t image_type,
+ uint64_t (*translate_fn)(void *, uint64_t),
+ void *translate_opaque)
{
int fd;
int size;
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;
}
}
int load_uimage(const char *filename, hwaddr *ep, hwaddr *loadaddr,
- int *is_linux)
+ 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);
+ 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);
+ 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;
}
/*
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_ram(rom->mr, owner, name, rom->datasize);
+ 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);
}
int rom_add_file(const char *file, const char *fw_dir,
- hwaddr addr, int32_t bootindex)
+ hwaddr addr, int32_t bootindex,
+ bool option_rom)
{
Rom *rom;
int rc, fd = -1;
}
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);
rom_insert(rom);
if (rom->fw_file && fw_cfg) {
const char *basename;
- char fw_file_name[56];
+ char fw_file_name[FW_CFG_MAX_FILE_PATH];
void *data;
basename = strrchr(rom->fw_file, '/');
basename);
snprintf(devpath, sizeof(devpath), "/rom@%s", fw_file_name);
- if (rom_file_in_ram) {
+ if ((!option_rom || option_rom_has_mr) && rom_file_has_mr) {
data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
} else {
data = rom->data;
return -1;
}
-void *rom_add_blob(const char *name, const void *blob, size_t len,
- hwaddr addr, const char *fw_file_name,
+ram_addr_t 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;
- void *data = NULL;
+ ram_addr_t ret = RAM_ADDR_MAX;
rom = g_malloc0(sizeof(*rom));
rom->name = g_strdup(name);
rom->addr = addr;
- rom->romsize = len;
+ 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_in_ram) {
+ if (rom_file_has_mr) {
data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
+ ret = memory_region_get_ram_addr(rom->mr);
} else {
data = rom->data;
}
fw_cfg_add_file_callback(fw_cfg, fw_file_name,
fw_callback, callback_opaque,
- data, rom->romsize);
+ data, rom->datasize);
}
- return data;
+ return ret;
}
/* This function is specific for elf program because we don't need to allocate
int rom_add_vga(const char *file)
{
- return rom_add_file(file, "vgaroms", 0, -1);
+ 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);
+ return rom_add_file(file, "genroms", 0, bootindex, true);
}
static void rom_reset(void *unused)
void *host = memory_region_get_ram_ptr(rom->mr);
memcpy(host, rom->data, rom->datasize);
} else {
- cpu_physical_memory_write_rom(rom->addr, rom->data, rom->datasize);
+ 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);
}
}
memory_region_unref(section.mr);
}
qemu_register_reset(rom_reset, NULL);
- roms_loaded = 1;
return 0;
}
+void rom_load_done(void)
+{
+ roms_loaded = 1;
+}
+
void rom_set_fw(FWCfgState *f)
{
fw_cfg = f;
return rom->data + (addr - rom->addr);
}
-void do_info_roms(Monitor *mon, const QDict *qdict)
+void hmp_info_roms(Monitor *mon, const QDict *qdict)
{
Rom *rom;
if (rom->mr) {
monitor_printf(mon, "%s"
" size=0x%06zx name=\"%s\"\n",
- rom->mr->name,
+ memory_region_name(rom->mr),
rom->romsize,
rom->name);
} else if (!rom->fw_file) {
projects / qemu.git / blobdiff