tools: mkimage: add firmware-ivt image type for HAB verification
When we want to use Secure Boot with HAB from SPL over U-Boot.img,
we need to append the IVT to the image and leave space for the CSF.
Images generated as firmware_ivt can directly be signed using the
Freescale code signing tool. For creation of a CSF, mkimage outputs
the correct HAB Blocks for the image.
The changes to the usual firmware image class are quite small,
that is why I implemented that directly into the default_image.
Cc: sbabic@denx.de
v2-Changes: None
Signed-off-by: Sven Ebenfeld <sven.ebenfeld@gmail.com>
Reviewed-by: George McCollister <george.mccollister@gmail.com>
Tested-by: George McCollister <george.mccollister@gmail.com>
diff --git a/tools/default_image.c b/tools/default_image.c
index 6e4ae14..4e5568e 100644
--- a/tools/default_image.c
+++ b/tools/default_image.c
@@ -25,7 +25,7 @@
static int image_check_image_types(uint8_t type)
{
if (((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT)) ||
- (type == IH_TYPE_KERNEL_NOLOAD))
+ (type == IH_TYPE_KERNEL_NOLOAD) || (type == IH_TYPE_FIRMWARE_IVT))
return EXIT_SUCCESS;
else
return EXIT_FAILURE;
@@ -89,6 +89,7 @@
{
uint32_t checksum;
time_t time;
+ uint32_t imagesize;
image_header_t * hdr = (image_header_t *)ptr;
@@ -98,11 +99,16 @@
sbuf->st_size - sizeof(image_header_t));
time = imagetool_get_source_date(params, sbuf->st_mtime);
+ if (params->type == IH_TYPE_FIRMWARE_IVT)
+ /* Add size of CSF minus IVT */
+ imagesize = sbuf->st_size - sizeof(image_header_t) + 0x1FE0;
+ else
+ imagesize = sbuf->st_size - sizeof(image_header_t);
/* Build new header */
image_set_magic(hdr, IH_MAGIC);
image_set_time(hdr, time);
- image_set_size(hdr, sbuf->st_size - sizeof(image_header_t));
+ image_set_size(hdr, imagesize);
image_set_load(hdr, params->addr);
image_set_ep(hdr, params->ep);
image_set_dcrc(hdr, checksum);
diff --git a/tools/mkimage.c b/tools/mkimage.c
index 49d5d1e..f48135f 100644
--- a/tools/mkimage.c
+++ b/tools/mkimage.c
@@ -9,6 +9,7 @@
*/
#include "mkimage.h"
+#include "imximage.h"
#include <image.h>
#include <version.h>
@@ -508,6 +509,37 @@
} else {
copy_file(ifd, params.datafile, pad_len);
}
+ if (params.type == IH_TYPE_FIRMWARE_IVT) {
+ /* Add alignment and IVT */
+ uint32_t aligned_filesize = (params.file_size + 0x1000
+ - 1) & ~(0x1000 - 1);
+ flash_header_v2_t ivt_header = { { 0xd1, 0x2000, 0x40 },
+ params.addr, 0, 0, 0, params.addr
+ + aligned_filesize
+ - tparams->header_size,
+ params.addr + aligned_filesize
+ - tparams->header_size
+ + 0x20, 0 };
+ int i = params.file_size;
+ for (; i < aligned_filesize; i++) {
+ if (write(ifd, &i, 1) != 1) {
+ fprintf(stderr,
+ "%s: Write error on %s: %s\n",
+ params.cmdname,
+ params.imagefile,
+ strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ }
+ if (write(ifd, &ivt_header, sizeof(flash_header_v2_t))
+ != sizeof(flash_header_v2_t)) {
+ fprintf(stderr, "%s: Write error on %s: %s\n",
+ params.cmdname,
+ params.imagefile,
+ strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ }
}
/* We're a bit of paranoid */