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 <maximmo...@gmail.com>
---
v5:
used func from lib/elf.c to avoid dependency form CLI
---
boot/bootm_os.c | 18 ++++++++++++++++++
boot/image-fit.c | 3 ++-
boot/image.c | 5 ++++-
cmd/Kconfig | 7 +++++++
include/image.h | 1 +
5 files changed, 32 insertions(+), 2 deletions(-)
diff --git a/boot/bootm_os.c b/boot/bootm_os.c
index 15297ddb53..6a6621706f 100644
--- a/boot/bootm_os.c
+++ b/boot/bootm_os.c
@@ -8,6 +8,7 @@
#include <bootstage.h>
#include <cpu_func.h>
#include <efi_loader.h>
+#include <elf.h>
#include <env.h>
#include <fdt_support.h>
#include <image.h>
@@ -394,6 +395,20 @@ static int do_bootm_qnxelf(int flag, struct bootm_info
*bmi)
}
#endif
+#if defined(CONFIG_BOOTM_ELF)
+static int do_bootm_elf(int flag, struct bootm_info *bmi)
+{
+ Bootelf_flags flags = { .autostart = 1 };
+
+ if (flag != BOOTM_STATE_OS_GO)
+ return 0;
+
+ bootelf(bmi->images->ep, flags, 0, NULL);
+
+ return 1;
+}
+#endif
+
#ifdef CONFIG_INTEGRITY
static int do_bootm_integrity(int flag, struct bootm_info *bmi)
{
@@ -535,6 +550,9 @@ static boot_os_fn *boot_os[] = {
#ifdef CONFIG_BOOTM_EFI
[IH_OS_EFI] = do_bootm_efi,
#endif
+#if defined(CONFIG_BOOTM_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 f6464bcf62..9253f81fff 100644
--- a/boot/image-fit.c
+++ b/boot/image-fit.c
@@ -2175,7 +2175,8 @@ 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 fc774d605d..abac254e02 100644
--- a/boot/image.c
+++ b/boot/image.c
@@ -130,7 +130,10 @@ static const table_entry_t uimage_os[] = {
{ IH_OS_OPENRTOS, "openrtos", "OpenRTOS", },
#endif
{ IH_OS_OPENSBI, "opensbi", "RISC-V OpenSBI", },
- { IH_OS_EFI, "efi", "EFI Firmware" },
+ { IH_OS_EFI, "efi", "EFI Firmware" },
+#ifdef CONFIG_BOOTM_ELF
+ { IH_OS_ELF, "elf", "ELF Image" },
+#endif
{ -1, "", "", },
};
diff --git a/cmd/Kconfig b/cmd/Kconfig
index a2dee34689..613baa106e 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -321,6 +321,13 @@ config BOOTM_EFI
help
Support booting UEFI FIT images via the bootm command.
+config BOOTM_ELF
+ bool "Support booting ELF images"
+ depends on CMD_BOOTM && LIB_ELF
+ default n
+ help
+ Support booting ELF images via the bootm command.
+
config CMD_BOOTZ
bool "bootz"
help
diff --git a/include/image.h b/include/image.h
index c5b288f62b..9daaee15cd 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,
};
--
2.39.2
