static int bootm_load_os(bootm_headers_t *images, int boot_progress)
{
image_info_t os = images->os;
ulong load = os.load;
ulong load_end;
ulong blob_start = os.start;
ulong blob_end = os.end;
ulong image_start = os.image_start;
ulong image_len = os.image_len;
ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN);
ulong flush_len;
bool no_overlap;
void *load_buf, *image_buf;
int err;
load_buf = map_sysmem(load, 0);
image_buf = map_sysmem(os.image_start, image_len);
err = bootm_decomp_image(os.comp, load, os.image_start, os.type,
load_buf, image_buf, image_len,
CONFIG_SYS_BOOTM_LEN, &load_end);
if (err) {
bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
return err;
}
flush_len = load_end - load;
if (flush_start < load)
flush_len += load - flush_start;
flush_cache(flush_start, ALIGN(flush_len, ARCH_DMA_MINALIGN));
debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end);
bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
no_overlap = (os.comp == IH_COMP_NONE && load == image_start);
if (!no_overlap && load < blob_end && load_end > blob_start) {
debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
blob_start, blob_end);
debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
load_end);
/* Check what type of image this is. */
if (images->legacy_hdr_valid) {
if (image_get_type(&images->legacy_hdr_os_copy)
== IH_TYPE_MULTI)
puts("WARNING: legacy format multi component image overwritten\n");
return BOOTM_ERR_OVERLAP;
} else {
puts("ERROR: new format image overwritten - must RESET the board to recover\n");
bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
return BOOTM_ERR_RESET;
}
}
lmb_reserve(&images->lmb, images->os.load, (load_end -
images->os.load));
return 0;
}
/**
* run_bootm_test() - Run tests on the bootm decopmression function
*
* @comp_type: Compression type to test
* @compress: Our function to compress data
* @return 0 if OK, non-zero on failure
*/
static int run_bootm_test(int comp_type, mutate_func compress)
{
ulong compress_size = 1024;
void *compress_buff;
int unc_len;
int err = 0;
const ulong image_start = 0;
const ulong load_addr = 0x1000;
ulong load_end;
printf("Testing: %s\n", genimg_get_comp_name(comp_type));
compress_buff = map_sysmem(image_start, 0);
unc_len = strlen(plain);
compress((void *)plain, unc_len, compress_buff, compress_size,
&compress_size);
err = bootm_decomp_image(comp_type, load_addr, image_start,
IH_TYPE_KERNEL, map_sysmem(load_addr, 0),
compress_buff, compress_size, unc_len,
&load_end);
if (err)
return err;
err = bootm_decomp_image(comp_type, load_addr, image_start,
IH_TYPE_KERNEL, map_sysmem(load_addr, 0),
compress_buff, compress_size, unc_len - 1,
&load_end);
if (!err)
return -EINVAL;
/* We can't detect corruption when not decompressing */
if (comp_type == IH_COMP_NONE)
return 0;
memset(compress_buff + compress_size / 2, '\x49',
compress_size / 2);
err = bootm_decomp_image(comp_type, load_addr, image_start,
IH_TYPE_KERNEL, map_sysmem(load_addr, 0),
compress_buff, compress_size, 0x10000,
&load_end);
if (!err)
return -EINVAL;
return 0;
}
static int bootm_host_load_image(const void *fit, int req_image_type)
{
const char *fit_uname_config = NULL;
ulong data, len;
bootm_headers_t images;
int noffset;
ulong load_end;
uint8_t image_type;
uint8_t imape_comp;
void *load_buf;
int ret;
memset(&images, '\0', sizeof(images));
images.verify = 1;
noffset = fit_image_load(&images, (ulong)fit,
NULL, &fit_uname_config,
IH_ARCH_DEFAULT, req_image_type, -1,
FIT_LOAD_IGNORED, &data, &len);
if (noffset < 0)
return noffset;
if (fit_image_get_type(fit, noffset, &image_type)) {
puts("Can't get image type!\n");
return -EINVAL;
}
if (fit_image_get_comp(fit, noffset, &imape_comp)) {
puts("Can't get image compression!\n");
return -EINVAL;
}
/* Allow the image to expand by a factor of 4, should be safe */
load_buf = malloc((1 << 20) + len * 4);
ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf,
(void *)data, len, CONFIG_SYS_BOOTM_LEN,
&load_end);
free(load_buf);
if (ret && ret != BOOTM_ERR_UNIMPLEMENTED)
return ret;
return 0;
}