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tools: mkimage: add firmware-ivt image type for HAB verification

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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>
This commit is contained in:
Sven Ebenfeld 2016-11-06 16:37:56 +01:00 committed by Stefano Babic
parent 15b505b055
commit d21bd69b6e
5 changed files with 55 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Makefile
View File

@ -763,7 +763,11 @@ ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
endif
endif
ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
else
ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
endif
ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
ifeq ($(CONFIG_SPL_FRAMEWORK),y)
@ -938,6 +942,9 @@ else
MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
endif
MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
@ -951,7 +958,7 @@ MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: \
u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
$(call if_changed,mkimage)

6
common/image.c
View File

@ -166,6 +166,7 @@ static const table_entry_t uimage_type[] = {
{ IH_TYPE_ZYNQMPIMAGE, "zynqmpimage", "Xilinx ZynqMP Boot Image" },
{ IH_TYPE_FPGA, "fpga", "FPGA Image" },
{ IH_TYPE_TEE, "tee", "Trusted Execution Environment Image",},
{ IH_TYPE_FIRMWARE_IVT, "firmware_ivt", "Firmware with HABv4 IVT" },
{ -1, "", "", },
};
@ -365,6 +366,11 @@ void image_print_contents(const void *ptr)
printf("%s Offset = 0x%08lx\n", p, data);
}
}
} else if (image_check_type(hdr, IH_TYPE_FIRMWARE_IVT)) {
printf("HAB Blocks: 0x%08x 0x0000 0x%08x\n",
image_get_load(hdr) - image_get_header_size(),
image_get_size(hdr) + image_get_header_size()
- 0x1FE0);
}
}

1
include/image.h
View File

@ -280,6 +280,7 @@ enum {
IH_TYPE_FPGA, /* FPGA Image */
IH_TYPE_VYBRIDIMAGE, /* VYBRID .vyb Image */
IH_TYPE_TEE, /* Trusted Execution Environment OS Image */
IH_TYPE_FIRMWARE_IVT, /* Firmware Image with HABv4 IVT */
IH_TYPE_COUNT, /* Number of image types */
};

10
tools/default_image.c
View File

@ -25,7 +25,7 @@ static image_header_t header;
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 @@ static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
{
uint32_t checksum;
time_t time;
uint32_t imagesize;
image_header_t * hdr = (image_header_t *)ptr;
@ -98,11 +99,16 @@ static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
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);

32
tools/mkimage.c
View File

@ -9,6 +9,7 @@
*/
#include "mkimage.h"
#include "imximage.h"
#include <image.h>
#include <version.h>
@ -508,6 +509,37 @@ int main(int argc, char **argv)
} 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 */