From: Maxim Moskalets maximmosk4@gmail.com

Some operating systems (e.g. seL4) and embedded applications are ELF images. It is convenient to use FIT-images to implement trusted boot. Added "elf" image type for booting using bootm command.

Signed-off-by: Maxim Moskalets maximmosk4@gmail.com --- boot/bootm_os.c | 24 ++++++++++++++++++++++++ boot/image-fit.c | 3 ++- boot/image.c | 3 +++ include/image.h | 1 + 4 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/boot/bootm_os.c b/boot/bootm_os.c index ccde72d22c..1c92b8149c 100644 --- a/boot/bootm_os.c +++ b/boot/bootm_os.c @@ -395,6 +395,27 @@ static int do_bootm_qnxelf(int flag, struct bootm_info *bmi) } #endif

+#if defined(CONFIG_CMD_ELF) +static int do_bootm_elf(int flag, struct bootm_info *bmi) +{ + struct bootm_headers *images = bmi->images; + char *local_args[2] = {NULL}; + char str[19] = ""; /* "0x" + 16 digits + "\0" */ + + if (flag != BOOTM_STATE_OS_GO) + return 0; + + snprintf(str, sizeof str, "0x%lx", images->ep); /* write entry-point into string */ + local_args[0] = bmi->argv[0]; + local_args[1] = str; /* and provide it via the arguments */ + + do_bootelf(NULL, 0, 2, local_args); + + return 1; +} +#endif + #ifdef CONFIG_INTEGRITY static int do_bootm_integrity(int flag, struct bootm_info *bmi) { @@ -536,6 +557,9 @@ static boot_os_fn *boot_os[] = { #ifdef CONFIG_BOOTM_EFI [IH_OS_EFI] = do_bootm_efi, #endif +#if defined(CONFIG_CMD_ELF) + [IH_OS_ELF] = do_bootm_elf, +#endif };

/* Allow for arch specific config before we boot */ diff --git a/boot/image-fit.c b/boot/image-fit.c index 89e377563c..0419bef6d2 100644 --- a/boot/image-fit.c +++ b/boot/image-fit.c @@ -2180,7 +2180,8 @@ int fit_image_load(struct bootm_headers *images, ulong addr, fit_image_check_os(fit, noffset, IH_OS_TEE) || fit_image_check_os(fit, noffset, IH_OS_OPENRTOS) || fit_image_check_os(fit, noffset, IH_OS_EFI) || - fit_image_check_os(fit, noffset, IH_OS_VXWORKS); + fit_image_check_os(fit, noffset, IH_OS_VXWORKS) || + fit_image_check_os(fit, noffset, IH_OS_ELF);

/* * If either of the checks fail, we should report an error, but diff --git a/boot/image.c b/boot/image.c index 073931cd7a..5b88d6808c 100644 --- a/boot/image.c +++ b/boot/image.c @@ -134,6 +134,9 @@ static const table_entry_t uimage_os[] = { #endif { IH_OS_OPENSBI, "opensbi", "RISC-V OpenSBI", }, { IH_OS_EFI, "efi", "EFI Firmware" }, +#ifdef CONFIG_CMD_ELF + { IH_OS_ELF, "elf", "ELF Image" }, +#endif

{ -1, "", "", }, }; diff --git a/include/image.h b/include/image.h index 21de70f0c9..9a40bca22c 100644 --- a/include/image.h +++ b/include/image.h @@ -100,6 +100,7 @@ enum { IH_OS_TEE, /* Trusted Execution Environment */ IH_OS_OPENSBI, /* RISC-V OpenSBI */ IH_OS_EFI, /* EFI Firmware (e.g. GRUB2) */ + IH_OS_ELF, /* ELF Image (e.g. seL4) */

IH_OS_COUNT, };