static void generic_loader_reset(void *opaque)
{
GenericLoaderState *s = GENERIC_LOADER(opaque);
if (s->set_pc) {
CPUClass *cc = CPU_GET_CLASS(s->cpu);
cpu_reset(s->cpu);
if (cc) {
cc->set_pc(s->cpu, s->addr);
}
}
if (s->data_len) {
MemTxAttrs attrs = { .unspecified = 0,
.secure = 0,
.user = 0,
.debug = 0,
.requester_id = 0,
};
attrs.debug = s->attrs.debug;
attrs.secure = s->attrs.secure;
attrs.requester_id = s->attrs.requester_id;
assert(s->data_len < sizeof(s->data));
address_space_rw(s->cpu->as, s->addr, attrs, (uint8_t *)&s->data,
s->data_len, true);
}
}
static void generic_loader_reset(void *opaque)
{
GenericLoaderState *s = GENERIC_LOADER(opaque);
if (s->set_pc) {
CPUClass *cc = CPU_GET_CLASS(s->cpu);
cpu_reset(s->cpu);
if (cc) {
cc->set_pc(s->cpu, s->addr);
}
}
if (s->data_len) {
assert(s->data_len < sizeof(s->data));
dma_memory_write(s->cpu->as, s->addr, &s->data, s->data_len);
}
}
static void generic_loader_realize(DeviceState *dev, Error **errp)
{
GenericLoaderState *s = GENERIC_LOADER(dev);
hwaddr entry;
int big_endian;
int size = 0;
s->set_pc = false;
/* Perform some error checking on the user's options */
if (s->data || s->data_len || s->data_be) {
/* User is loading memory values */
if (s->file) {
error_setg(errp, "Specifying a file is not supported when loading "
"memory values");
return;
} else if (s->force_raw) {
error_setg(errp, "Specifying force-raw is not supported when "
"loading memory values");
return;
} else if (!s->data_len) {
/* We can't check for !data here as a value of 0 is still valid. */
error_setg(errp, "Both data and data-len must be specified");
return;
} else if (s->data_len > 8) {
error_setg(errp, "data-len cannot be greater then 8 bytes");
return;
}
} else if (s->file || s->force_raw) {
/* User is loading an image */
if (s->data || s->data_len || s->data_be) {
error_setg(errp, "data can not be specified when loading an "
"image");
return;
}
/* The user specified a file, only set the PC if they also specified
* a CPU to use.
*/
if (s->cpu_num != CPU_NONE) {
s->set_pc = true;
}
} else if (s->addr) {
/* User is setting the PC */
if (s->data || s->data_len || s->data_be) {
error_setg(errp, "data can not be specified when setting a "
"program counter");
return;
} else if (!s->cpu_num) {
error_setg(errp, "cpu_num must be specified when setting a "
"program counter");
return;
}
s->set_pc = true;
} else {
/* Did the user specify anything? */
error_setg(errp, "please include valid arguments");
return;
}
qemu_register_reset_loader(generic_loader_reset, dev);
if (s->cpu_num != CPU_NONE) {
s->cpu = qemu_get_cpu(s->cpu_num);
if (!s->cpu) {
error_setg(errp, "Specified boot CPU#%d is nonexistent",
s->cpu_num);
return;
}
} else {
s->cpu = first_cpu;
}
#ifdef TARGET_WORDS_BIGENDIAN
big_endian = 1;
#else
big_endian = 0;
#endif
if (s->file) {
AddressSpace *as = s->cpu ? s->cpu->as : NULL;
if (!s->force_raw) {
size = load_elf_as(s->file, NULL, NULL, &entry, NULL, NULL,
big_endian, 0, 0, 0, as);
if (size < 0) {
size = load_uimage_as(s->file, &entry, NULL, NULL, NULL, NULL,
as);
}
}
if (size < 0 || s->force_raw) {
/* Default to the maximum size being the machine's ram size */
size = load_image_targphys_as(s->file, s->addr, ram_size, as);
} else {
s->addr = entry;
}
if (size < 0) {
error_setg(errp, "Cannot load specified image %s", s->file);
return;
}
}
/* Convert the data endiannes */
if (s->data_be) {
s->data = cpu_to_be64(s->data);
} else {
s->data = cpu_to_le64(s->data);
}
/* Xilinx: If qdev_hotplug is set then the machine has already been
* created. This means we are hot-plugging a device. We need to forefully
* call the reset function to ensure the operation completes.
*/
if (qdev_hotplug) {
generic_loader_reset(dev);
}
}
static void generic_loader_realize(DeviceState *dev, Error **errp)
{
GenericLoaderState *s = GENERIC_LOADER(dev);
hwaddr entry;
int big_endian;
int size = 0;
s->set_pc = false;
/* Xilinx: This is the old deprecated command line argument.
* Print a warning to tell users that it will be removed.
*/
if (s->cpu_num_dep != CPU_NONE) {
fprintf(stderr, "The 'cpu=' command line option has been deprecated " \
"and replaced with 'cpu-num='. Please update your command " \
"line to use 'cpu-num=' as 'cpu=' will be removed after the " \
"2017.4 release.\n");
if (s->cpu_num == CPU_NONE) {
s->cpu_num = s->cpu_num_dep;
}
}
/* Perform some error checking on the user's options */
if (s->data || s->data_len || s->data_be) {
/* User is loading memory values */
if (s->file) {
error_setg(errp, "Specifying a file is not supported when loading "
"memory values");
return;
} else if (s->force_raw) {
error_setg(errp, "Specifying force-raw is not supported when "
"loading memory values");
return;
} else if (!s->data_len) {
/* We can't check for !data here as a value of 0 is still valid. */
error_setg(errp, "Both data and data-len must be specified");
return;
} else if (s->data_len > 8) {
error_setg(errp, "data-len cannot be greater then 8 bytes");
return;
}
} else if (s->file || s->force_raw) {
/* User is loading an image */
if (s->data || s->data_len || s->data_be) {
error_setg(errp, "data can not be specified when loading an "
"image");
return;
}
/* The user specified a file, only set the PC if they also specified
* a CPU to use.
*/
if (s->cpu_num != CPU_NONE) {
s->set_pc = true;
}
} else if (s->addr) {
/* User is setting the PC */
if (s->data || s->data_len || s->data_be) {
error_setg(errp, "data can not be specified when setting a "
"program counter");
return;
} else if (!s->cpu_num) {
error_setg(errp, "cpu_num must be specified when setting a "
"program counter");
return;
}
s->set_pc = true;
} else {
/* Did the user specify anything? */
error_setg(errp, "please include valid arguments");
return;
}
qemu_register_reset(generic_loader_reset, dev);
if (s->cpu_num != CPU_NONE) {
s->cpu = qemu_get_cpu(s->cpu_num);
if (!s->cpu) {
error_setg(errp, "Specified boot CPU#%d is nonexistent",
s->cpu_num);
return;
}
} else {
s->cpu = first_cpu;
}
#ifdef TARGET_WORDS_BIGENDIAN
big_endian = 1;
#else
big_endian = 0;
#endif
if (s->file) {
AddressSpace *as = s->cpu ? s->cpu->as : NULL;
if (!s->force_raw) {
size = load_elf_as(s->file, NULL, NULL, &entry, NULL, NULL,
big_endian, 0, 0, 0, as);
if (size < 0) {
size = load_uimage_as(s->file, &entry, NULL, NULL, NULL, NULL,
as);
}
}
if (size < 0 || s->force_raw) {
/* Default to the maximum size being the machine's ram size */
size = load_image_targphys_as(s->file, s->addr, ram_size, as);
} else {
s->addr = entry;
}
if (size < 0) {
error_setg(errp, "Cannot load specified image %s", s->file);
return;
}
}
/* Convert the data endiannes */
if (s->data_be) {
s->data = cpu_to_be64(s->data);
} else {
s->data = cpu_to_le64(s->data);
}
}
