* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
-#include "hw.h"
-#include "disas.h"
-#include "sysemu.h"
-#include "uboot_image.h"
-#include "loader.h"
+#include "hw/hw.h"
+#include "disas/disas.h"
+#include "monitor/monitor.h"
+#include "sysemu/sysemu.h"
+#include "hw/uboot_image.h"
+#include "hw/loader.h"
+#include "hw/fw_cfg.h"
+#include "exec/memory.h"
+#include "exec/address-spaces.h"
#include <zlib.h>
+static int roms_loaded;
+
/* return the size or -1 if error */
int get_image_size(const char *filename)
{
return size;
}
-/* return the amount read, just like fread. 0 may mean error or eof */
-int fread_targphys(target_phys_addr_t dst_addr, size_t nbytes, FILE *f)
-{
- uint8_t buf[4096];
- target_phys_addr_t dst_begin = dst_addr;
- size_t want, did;
-
- while (nbytes) {
- want = nbytes > sizeof(buf) ? sizeof(buf) : nbytes;
- did = fread(buf, 1, want, f);
-
- cpu_physical_memory_write_rom(dst_addr, buf, did);
- dst_addr += did;
- nbytes -= did;
- if (did != want)
- break;
- }
- return dst_addr - dst_begin;
-}
-
-/* returns 0 on error, 1 if ok */
-int fread_targphys_ok(target_phys_addr_t dst_addr, size_t nbytes, FILE *f)
-{
- return fread_targphys(dst_addr, nbytes, f) == nbytes;
-}
-
/* read()-like version */
-int read_targphys(int fd, target_phys_addr_t dst_addr, size_t nbytes)
+ssize_t read_targphys(const char *name,
+ int fd, hwaddr dst_addr, size_t nbytes)
{
- uint8_t buf[4096];
- target_phys_addr_t dst_begin = dst_addr;
- size_t want, did;
-
- while (nbytes) {
- want = nbytes > sizeof(buf) ? sizeof(buf) : nbytes;
- did = read(fd, buf, want);
- if (did != want) break;
-
- cpu_physical_memory_write_rom(dst_addr, buf, did);
- dst_addr += did;
- nbytes -= did;
- }
- return dst_addr - dst_begin;
+ 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,
- target_phys_addr_t addr, int max_sz)
+ hwaddr addr, uint64_t max_sz)
{
- FILE *f;
- size_t got;
-
- f = fopen(filename, "rb");
- if (!f) return -1;
-
- got = fread_targphys(addr, max_sz, f);
- if (ferror(f)) { fclose(f); return -1; }
- fclose(f);
+ int size;
- return got;
+ 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(target_phys_addr_t dest, int buf_size,
+void pstrcpy_targphys(const char *name, hwaddr dest, int buf_size,
const char *source)
{
- static const uint8_t nul_byte = 0;
const char *nulp;
+ char *ptr;
if (buf_size <= 0) return;
nulp = memchr(source, 0, buf_size);
if (nulp) {
- cpu_physical_memory_write_rom(dest, (uint8_t *)source,
- (nulp - source) + 1);
+ rom_add_blob_fixed(name, source, (nulp - source) + 1, dest);
} else {
- cpu_physical_memory_write_rom(dest, (uint8_t *)source, buf_size - 1);
- cpu_physical_memory_write_rom(dest, &nul_byte, 1);
+ rom_add_blob_fixed(name, source, buf_size, dest);
+ ptr = rom_ptr(dest + buf_size - 1);
+ *ptr = 0;
}
}
: (_N_SEGMENT_ROUND (_N_TXTENDADDR(x, target_page_size), target_page_size)))
-int load_aout(const char *filename, target_phys_addr_t addr, int max_sz,
- int bswap_needed, target_phys_addr_t target_page_size)
+int load_aout(const char *filename, hwaddr addr, int max_sz,
+ int bswap_needed, hwaddr target_page_size)
{
- int fd, size, ret;
+ int fd;
+ ssize_t size, ret;
struct exec e;
uint32_t magic;
if (e.a_text + e.a_data > max_sz)
goto fail;
lseek(fd, N_TXTOFF(e), SEEK_SET);
- size = read_targphys(fd, addr, e.a_text + e.a_data);
+ size = read_targphys(filename, fd, addr, e.a_text + e.a_data);
if (size < 0)
goto fail;
break;
if (N_DATADDR(e, target_page_size) + e.a_data > max_sz)
goto fail;
lseek(fd, N_TXTOFF(e), SEEK_SET);
- size = read_targphys(fd, addr, e.a_text);
+ size = read_targphys(filename, fd, addr, e.a_text);
if (size < 0)
goto fail;
- ret = read_targphys(fd, addr + N_DATADDR(e, target_page_size),
+ ret = read_targphys(filename, fd, addr + N_DATADDR(e, target_page_size),
e.a_data);
if (ret < 0)
goto fail;
void *ptr;
if (lseek(fd, offset, SEEK_SET) < 0)
return NULL;
- ptr = qemu_malloc(size);
+ ptr = g_malloc(size);
if (read(fd, ptr, size) != size) {
- qemu_free(ptr);
+ g_free(ptr);
return NULL;
}
return ptr;
#define elf_word uint32_t
#define elf_sword int32_t
#define bswapSZs bswap32s
-#include "elf_ops.h"
+#include "hw/elf_ops.h"
#undef elfhdr
#undef elf_phdr
#define elf_sword int64_t
#define bswapSZs bswap64s
#define SZ 64
-#include "elf_ops.h"
+#include "hw/elf_ops.h"
/* return < 0 if error, otherwise the number of bytes loaded in memory */
-int load_elf(const char *filename, int64_t address_offset,
- uint64_t *pentry, uint64_t *lowaddr, uint64_t *highaddr,
- int big_endian, int elf_machine, int clear_lsb)
+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;
uint8_t e_ident[EI_NIDENT];
target_data_order = ELFDATA2LSB;
}
- if (target_data_order != e_ident[EI_DATA])
- return -1;
+ if (target_data_order != e_ident[EI_DATA]) {
+ goto fail;
+ }
lseek(fd, 0, SEEK_SET);
if (e_ident[EI_CLASS] == ELFCLASS64) {
- ret = load_elf64(fd, address_offset, must_swab, pentry,
- lowaddr, highaddr, elf_machine, clear_lsb);
+ ret = load_elf64(filename, fd, translate_fn, translate_opaque, must_swab,
+ pentry, lowaddr, highaddr, elf_machine, clear_lsb);
} else {
- ret = load_elf32(fd, address_offset, must_swab, pentry,
- lowaddr, highaddr, elf_machine, clear_lsb);
+ ret = load_elf32(filename, fd, translate_fn, translate_opaque, must_swab,
+ pentry, lowaddr, highaddr, elf_machine, clear_lsb);
}
close(fd);
size *= items;
size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
- p = qemu_malloc(size);
+ p = g_malloc(size);
return (p);
}
static void zfree(void *x, void *addr)
{
- qemu_free(addr);
+ g_free(addr);
}
#define DEFLATED 8
-/* This is the maximum in uboot, so if a uImage overflows this, it would
+/* 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 0x800000
+#define UBOOT_MAX_GUNZIP_BYTES (64 << 20)
static ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src,
size_t srclen)
}
/* Load a U-Boot image. */
-int load_uimage(const char *filename, target_phys_addr_t *ep,
- target_phys_addr_t *loadaddr, int *is_linux)
+int load_uimage(const char *filename, hwaddr *ep,
+ hwaddr *loadaddr, int *is_linux)
{
int fd;
int size;
}
*ep = hdr->ih_ep;
- data = qemu_malloc(hdr->ih_size);
+ data = g_malloc(hdr->ih_size);
if (read(fd, data, hdr->ih_size) != hdr->ih_size) {
fprintf(stderr, "Error reading file\n");
compressed_data = data;
max_bytes = UBOOT_MAX_GUNZIP_BYTES;
- data = qemu_malloc(max_bytes);
+ data = g_malloc(max_bytes);
bytes = gunzip(data, max_bytes, compressed_data, hdr->ih_size);
- qemu_free(compressed_data);
+ g_free(compressed_data);
if (bytes < 0) {
fprintf(stderr, "Unable to decompress gzipped image!\n");
goto out;
hdr->ih_size = bytes;
}
- cpu_physical_memory_write_rom(hdr->ih_load, data, hdr->ih_size);
+ rom_add_blob_fixed(filename, data, hdr->ih_size, hdr->ih_load);
if (loadaddr)
*loadaddr = hdr->ih_load;
out:
if (data)
- qemu_free(data);
+ g_free(data);
close(fd);
return ret;
}
+
+/*
+ * 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;
+ 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);
+}
+
+int rom_add_file(const char *file, const char *fw_dir,
+ hwaddr addr, int32_t bootindex)
+{
+ 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);
+ 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[56];
+
+ 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);
+ fw_cfg_add_file(fw_cfg, fw_file_name, rom->data, rom->romsize);
+ snprintf(devpath, sizeof(devpath), "/rom@%s", fw_file_name);
+ } 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;
+}
+
+int rom_add_blob(const char *name, const void *blob, size_t len,
+ hwaddr addr)
+{
+ Rom *rom;
+
+ rom = g_malloc0(sizeof(*rom));
+ rom->name = g_strdup(name);
+ rom->addr = addr;
+ rom->romsize = len;
+ rom->datasize = len;
+ rom->data = g_malloc0(rom->datasize);
+ memcpy(rom->data, blob, len);
+ rom_insert(rom);
+ return 0;
+}
+
+/* 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);
+}
+
+int rom_add_option(const char *file, int32_t bootindex)
+{
+ return rom_add_file(file, "genroms", 0, bootindex);
+}
+
+static void rom_reset(void *unused)
+{
+ Rom *rom;
+
+ QTAILQ_FOREACH(rom, &roms, next) {
+ if (rom->fw_file) {
+ continue;
+ }
+ if (rom->data == NULL) {
+ continue;
+ }
+ cpu_physical_memory_write_rom(rom->addr, rom->data, rom->datasize);
+ if (rom->isrom) {
+ /* rom needs to be written only once */
+ g_free(rom->data);
+ rom->data = NULL;
+ }
+ }
+}
+
+int rom_load_all(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 = section.size && memory_region_is_rom(section.mr);
+ }
+ qemu_register_reset(rom_reset, NULL);
+ roms_loaded = 1;
+ return 0;
+}
+
+void rom_set_fw(void *f)
+{
+ fw_cfg = f;
+}
+
+static Rom *find_rom(hwaddr addr)
+{
+ Rom *rom;
+
+ QTAILQ_FOREACH(rom, &roms, next) {
+ if (rom->fw_file) {
+ 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->addr + rom->romsize < addr) {
+ continue;
+ }
+ if (rom->addr > end) {
+ break;
+ }
+ if (!rom->data) {
+ continue;
+ }
+
+ d = dest + (rom->addr - addr);
+ s = rom->data;
+ l = rom->datasize;
+
+ if ((d + l) > (dest + size)) {
+ l = dest - d;
+ }
+
+ 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 do_info_roms(Monitor *mon, const QDict *qdict)
+{
+ Rom *rom;
+
+ QTAILQ_FOREACH(rom, &roms, next) {
+ 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);
+ }
+ }
+}
projects / qemu.git / blobdiff