#include "hw.h"
#include "disas.h"
+#include "monitor.h"
#include "sysemu.h"
#include "uboot_image.h"
#include "loader.h"
+#include "fw_cfg.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(a_target_phys_addr dst_addr, size_t nbytes, FILE *f)
-{
- uint8_t buf[4096];
- a_target_phys_addr 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(a_target_phys_addr dst_addr, size_t nbytes, FILE *f)
-{
- return fread_targphys(dst_addr, nbytes, f) == nbytes;
-}
-
/* read()-like version */
-int read_targphys(int fd, a_target_phys_addr dst_addr, size_t nbytes)
+int read_targphys(const char *name,
+ int fd, target_phys_addr_t dst_addr, size_t nbytes)
{
- uint8_t buf[4096];
- a_target_phys_addr 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;
+ size_t did;
+
+ buf = qemu_malloc(nbytes);
+ did = read(fd, buf, nbytes);
+ if (did > 0)
+ rom_add_blob_fixed("read", buf, did, dst_addr);
+ qemu_free(buf);
+ return did;
}
/* return the size or -1 if error */
int load_image_targphys(const char *filename,
- a_target_phys_addr addr, int max_sz)
+ target_phys_addr_t addr, int 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 > 0)
+ rom_add_file_fixed(filename, addr, -1);
+ return size;
}
-void pstrcpy_targphys(a_target_phys_addr dest, int buf_size,
+void pstrcpy_targphys(const char *name, target_phys_addr_t 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, a_target_phys_addr addr, int max_sz,
- int bswap_needed, a_target_phys_addr 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 fd, size, ret;
struct exec e;
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;
#include "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);
return -1;
}
-static void bswap_uboot_header(an_uboot_image_header *hdr)
+static void bswap_uboot_header(uboot_image_header_t *hdr)
{
#ifndef HOST_WORDS_BIGENDIAN
bswap32s(&hdr->ih_magic);
}
/* Load a U-Boot image. */
-int load_uimage(const char *filename, a_target_phys_addr *ep,
- a_target_phys_addr *loadaddr, int *is_linux)
+int load_uimage(const char *filename, target_phys_addr_t *ep,
+ target_phys_addr_t *loadaddr, int *is_linux)
{
int fd;
int size;
- an_uboot_image_header h;
- an_uboot_image_header *hdr = &h;
+ uboot_image_header_t h;
+ uboot_image_header_t *hdr = &h;
uint8_t *data = NULL;
int ret = -1;
if (fd < 0)
return -1;
- size = read(fd, hdr, sizeof(an_uboot_image_header));
+ size = read(fd, hdr, sizeof(uboot_image_header_t));
if (size < 0)
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;
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;
+ size_t romsize;
+ uint8_t *data;
+ int isrom;
+ char *fw_dir;
+ char *fw_file;
+
+ target_phys_addr_t 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,
+ target_phys_addr_t addr, int32_t bootindex)
+{
+ Rom *rom;
+ int rc, fd = -1;
+ char devpath[100];
+
+ rom = qemu_mallocz(sizeof(*rom));
+ rom->name = qemu_strdup(file);
+ rom->path = qemu_find_file(QEMU_FILE_TYPE_BIOS, rom->name);
+ if (rom->path == NULL) {
+ rom->path = qemu_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 = qemu_strdup(fw_dir);
+ rom->fw_file = qemu_strdup(file);
+ }
+ rom->addr = addr;
+ rom->romsize = lseek(fd, 0, SEEK_END);
+ rom->data = qemu_mallocz(rom->romsize);
+ lseek(fd, 0, SEEK_SET);
+ rc = read(fd, rom->data, rom->romsize);
+ if (rc != rom->romsize) {
+ fprintf(stderr, "rom: file %-20s: read error: rc=%d (expected %zd)\n",
+ rom->name, rc, rom->romsize);
+ 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);
+ qemu_free(rom->data);
+ qemu_free(rom->path);
+ qemu_free(rom->name);
+ qemu_free(rom);
+ return -1;
+}
+
+int rom_add_blob(const char *name, const void *blob, size_t len,
+ target_phys_addr_t addr)
+{
+ Rom *rom;
+
+ rom = qemu_mallocz(sizeof(*rom));
+ rom->name = qemu_strdup(name);
+ rom->addr = addr;
+ rom->romsize = len;
+ rom->data = qemu_mallocz(rom->romsize);
+ memcpy(rom->data, blob, len);
+ 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->romsize);
+ if (rom->isrom) {
+ /* rom needs to be written only once */
+ qemu_free(rom->data);
+ rom->data = NULL;
+ }
+ }
+}
+
+int rom_load_all(void)
+{
+ target_phys_addr_t addr = 0;
+ int memtype;
+ 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;
+ memtype = cpu_get_physical_page_desc(rom->addr) & (3 << IO_MEM_SHIFT);
+ if (memtype == IO_MEM_ROM)
+ rom->isrom = 1;
+ }
+ qemu_register_reset(rom_reset, NULL);
+ roms_loaded = 1;
+ return 0;
+}
+
+void rom_set_fw(void *f)
+{
+ fw_cfg = f;
+}
+
+static Rom *find_rom(target_phys_addr_t 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, target_phys_addr_t addr, size_t size)
+{
+ target_phys_addr_t 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->romsize;
+
+ if ((d + l) > (dest + size)) {
+ l = dest - d;
+ }
+
+ memcpy(d, s, l);
+ }
+
+ return (d + l) - dest;
+}
+
+void *rom_ptr(target_phys_addr_t 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)
+{
+ 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