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.
Signed-off-by: Sven Ebenfeld sven.ebenfeld@gmail.com --- Makefile | 9 ++++++++- common/image.c | 6 ++++++ include/image.h | 1 + tools/default_image.c | 10 ++++++++-- tools/mkimage.c | 32 ++++++++++++++++++++++++++++++++ 5 files changed, 55 insertions(+), 3 deletions(-)
diff --git a/Makefile b/Makefile index dcba7db..15151ff 100644 --- a/Makefile +++ b/Makefile @@ -754,7 +754,11 @@ 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) @@ -921,6 +925,9 @@ 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) @@ -934,7 +941,7 @@ 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)
diff --git a/common/image.c b/common/image.c index 0e86c13..01e1dea 100644 --- a/common/image.c +++ b/common/image.c @@ -165,6 +165,7 @@ static const table_entry_t uimage_type[] = { { IH_TYPE_ZYNQIMAGE, "zynqimage", "Xilinx Zynq Boot Image" }, { IH_TYPE_ZYNQMPIMAGE, "zynqmpimage", "Xilinx ZynqMP Boot Image" }, { IH_TYPE_FPGA, "fpga", "FPGA Image" }, + { IH_TYPE_FIRMWARE_IVT, "firmware_ivt", "Firmware with HABv4 IVT" }, { -1, "", "", }, };
@@ -364,6 +365,11 @@ 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); } }
diff --git a/include/image.h b/include/image.h index 2b1296c..14d0a3d 100644 --- a/include/image.h +++ b/include/image.h @@ -279,6 +279,7 @@ enum { IH_TYPE_ZYNQMPIMAGE, /* Xilinx ZynqMP Boot Image */ IH_TYPE_FPGA, /* FPGA Image */ IH_TYPE_VYBRIDIMAGE, /* VYBRID .vyb Image */ + IH_TYPE_FIRMWARE_IVT, /* Firmware Image with HABv4 IVT */
IH_TYPE_COUNT, /* Number of image types */ }; 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 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); diff --git a/tools/mkimage.c b/tools/mkimage.c index 3c594a0..46ff533 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>
@@ -503,6 +504,37 @@ 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 */