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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2019-05-22 10:05:17 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-06-07 08:42:05 +0200 |
| commit | e30340886fcbac1d2c03fbea4ee41ffa9464fb11 (patch) | |
| tree | d6aec9dde274cafbdce1c8beca4699c05fd17f98 /commands | |
| parent | ab06d72a6ef8939831b8c0b1c412d9a11fc06889 (diff) | |
| download | barebox-e30340886fcbac1d2c03fbea4ee41ffa9464fb11.tar.gz barebox-e30340886fcbac1d2c03fbea4ee41ffa9464fb11.tar.xz | |
ARM: Initial OP-TEE support
This adds initial support for OP-TEE, see https://www.op-tee.org/
barebox starts in secure mode as usual. When booting a kernel
the bootm code also loads the optee_os binary. Instead of jumping
into the kernel barebox jumps into the optee_os binary and puts
the kernel execution address into the lr register. OP-TEE then
jumps into the kernel in nonsecure mode.
The optee_os binary is passed with the -t option to bootm or
with global.bootm.tee.
Optionally OP-TEE can be compiled into barebox using the builtin firmware
feature. Enable the Kconfig option and place or link your tee binary as
optee.bin into the firmware directory.
The amount of SDRAM which is kept free for OP-TEE is configurable.
This patch was tested on a i.MX6 Nitrogen6x board.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'commands')
| -rw-r--r-- | commands/bootm.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/commands/bootm.c b/commands/bootm.c index c7cbdbe0f4..100c2e99fb 100644 --- a/commands/bootm.c +++ b/commands/bootm.c @@ -45,7 +45,7 @@ #include <magicvar.h> #include <asm-generic/memory_layout.h> -#define BOOTM_OPTS_COMMON "sca:e:vo:fd" +#define BOOTM_OPTS_COMMON "sca:e:vo:fdt:" #ifdef CONFIG_BOOTM_INITRD #define BOOTM_OPTS BOOTM_OPTS_COMMON "L:r:" @@ -96,6 +96,9 @@ static int do_bootm(int argc, char *argv[]) case 'd': data.dryrun = 1; break; + case 't': + data.tee_file = optarg; + break; default: return COMMAND_ERROR_USAGE; } @@ -134,6 +137,9 @@ BAREBOX_CMD_HELP_OPT ("-e OFFS\t","entry point to the image relative to start (0 #ifdef CONFIG_OFTREE BAREBOX_CMD_HELP_OPT ("-o DTB\t","specify open firmware device tree") #endif +#ifdef CONFIG_BOOTM_OPTEE +BAREBOX_CMD_HELP_OPT ("-t TEE\t","specify TEE image") +#endif #ifdef CONFIG_BOOTM_VERBOSE BAREBOX_CMD_HELP_OPT ("-v\t","verbose") #endif @@ -153,6 +159,9 @@ BAREBOX_CMD_START(bootm) #ifdef CONFIG_BOOTM_VERBOSE "v" #endif +#ifdef CONFIG_BOOTM_OPTEE + "t" +#endif "] IMAGE") BAREBOX_CMD_GROUP(CMD_GRP_BOOT) BAREBOX_CMD_HELP(cmd_bootm_help) |