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x86: ifdtool: Support checking region overlap before U-Boot

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We have the capability to check regions written after U-Boot that
do not overlap. Since regions can also be written before U-Boot,
add such check for these too.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Andy Pont <andy.pont@sdcsystems.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2015-08-27 08:38:15 -07:00 committed by Simon Glass
parent efde6a579f
commit e6378e1da2
1 changed files with 46 additions and 20 deletions
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66
tools/ifdtool.c
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@ -707,10 +707,12 @@ int inject_region(char *image, int size, int region_type, char *region_fname)
* 8MB ROM the start address is 0xfff80000.
* @write_fname: Filename to add to the image
* @offset_uboot_top: Offset of the top of U-Boot
* @offset_uboot_start: Offset of the start of U-Boot
* @return number of bytes written if OK, -ve on error
*/
static int write_data(char *image, int size, unsigned int addr,
const char *write_fname, int offset_uboot_top)
const char *write_fname, int offset_uboot_top,
int offset_uboot_start)
{
int write_fd, write_size;
int offset;
@ -720,13 +722,25 @@ static int write_data(char *image, int size, unsigned int addr,
return write_fd;
offset = (uint32_t)(addr + size);
if (offset_uboot_top && offset_uboot_top >= offset) {
fprintf(stderr, "U-Boot image overlaps with region '%s'\n",
write_fname);
fprintf(stderr,
"U-Boot finishes at offset %x, file starts at %x\n",
offset_uboot_top, offset);
return -EXDEV;
if (offset_uboot_top) {
if (offset_uboot_start < offset &&
offset_uboot_top >= offset) {
fprintf(stderr, "U-Boot image overlaps with region '%s'\n",
write_fname);
fprintf(stderr,
"U-Boot finishes at offset %x, file starts at %x\n",
offset_uboot_top, offset);
return -EXDEV;
}
if (offset_uboot_start > offset &&
offset_uboot_start <= offset + write_size) {
fprintf(stderr, "U-Boot image overlaps with region '%s'\n",
write_fname);
fprintf(stderr,
"U-Boot starts at offset %x, file finishes at %x\n",
offset_uboot_start, offset + write_size);
return -EXDEV;
}
}
debug("Writing %s to offset %#x\n", write_fname, offset);
@ -927,27 +941,36 @@ static int write_ucode(char *image, int size, struct input_file *fdt,
*/
static int write_uboot(char *image, int size, struct input_file *uboot,
struct input_file *fdt, unsigned int ucode_ptr,
int collate_ucode)
int collate_ucode, int *offset_uboot_top,
int *offset_uboot_start)
{
const void *blob;
int uboot_size, fdt_size;
int uboot_top;
uboot_size = write_data(image, size, uboot->addr, uboot->fname, 0);
uboot_size = write_data(image, size, uboot->addr, uboot->fname, 0, 0);
if (uboot_size < 0)
return uboot_size;
fdt->addr = uboot->addr + uboot_size;
debug("U-Boot size %#x, FDT at %#x\n", uboot_size, fdt->addr);
fdt_size = write_data(image, size, fdt->addr, fdt->fname, 0);
fdt_size = write_data(image, size, fdt->addr, fdt->fname, 0, 0);
if (fdt_size < 0)
return fdt_size;
blob = (void *)image + (uint32_t)(fdt->addr + size);
uboot_top = (uint32_t)(fdt->addr + size) + fdt_size;
if (ucode_ptr) {
return write_ucode(image, size, fdt, fdt_size, ucode_ptr,
collate_ucode);
uboot_top = write_ucode(image, size, fdt, fdt_size, ucode_ptr,
collate_ucode);
if (uboot_top < 0)
return uboot_top;
}
return ((char *)blob + fdt_size) - image;
if (offset_uboot_top && offset_uboot_start) {
*offset_uboot_top = uboot_top;
*offset_uboot_start = (uint32_t)(uboot->addr + size);
}
return 0;
}
static void print_version(void)
@ -1268,13 +1291,14 @@ int main(int argc, char *argv[])
}
if (mode_write_descriptor)
ret = write_data(image, size, -size, desc_fname, 0);
ret = write_data(image, size, -size, desc_fname, 0, 0);
if (mode_inject)
ret = inject_region(image, size, region_type, inject_fname);
if (mode_write) {
int offset_uboot_top = 0;
int offset_uboot_start = 0;
for (wr_idx = 0; wr_idx < wr_num; wr_idx++) {
ifile = &input_file[wr_idx];
@ -1282,11 +1306,13 @@ int main(int argc, char *argv[])
continue;
} else if (ifile->type == IF_uboot) {
ret = write_uboot(image, size, ifile, fdt,
ucode_ptr, collate_ucode);
offset_uboot_top = ret;
ucode_ptr, collate_ucode,
&offset_uboot_top,
&offset_uboot_start);
} else {
ret = write_data(image, size, ifile->addr,
ifile->fname, offset_uboot_top);
ifile->fname, offset_uboot_top,
offset_uboot_start);
}
if (ret < 0)
break;