Djam/u-boot
1
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2025-04-11 07:24:46 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

cmd: Add support for optee commands

Browse source 
Add the basic 'hello world ta' command which increment
of the value passed. This provides easy test for
establishing a session with OP-TEE TA and verify.

It includes following "hello world ta" subcommands:
optee hello; default value '0' is passed and gets incremented.
optee hello <value>; value to increment via OP-TEE HELLO
WORLD TA.

To enable the OP-TEE side HELLO WORLD example please refer
https://optee.readthedocs.io/en/latest/building/gits/optee_examples/optee_examples.html

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
This commit is contained in:
Venkatesh Yadav Abbarapu 2024-12-19 10:09:17 +05:30 • committed by Tom Rini
parent 9378307136
commit e3cf80fbe0
3 changed files with 77 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
cmd/Kconfig
View file

@ -1446,6 +1446,12 @@ config CMD_OPTEE_RPMB
in the Replay Protection Memory Block partition in eMMC by
using Persistent Objects in OPTEE
config CMD_OPTEE
bool "Enable OP-TEE commands"
depends on OPTEE
help
OP-TEE commands support.
config CMD_MTD
bool "mtd"
depends on MTD

1
cmd/Makefile
View file

@ -118,6 +118,7 @@ obj-$(CONFIG_CMD_PAUSE) += pause.o
obj-$(CONFIG_CMD_SLEEP) += sleep.o
obj-$(CONFIG_CMD_MMC) += mmc.o
obj-$(CONFIG_CMD_OPTEE_RPMB) += optee_rpmb.o
obj-$(CONFIG_CMD_OPTEE) += optee.o
obj-$(CONFIG_CMD_MP) += mp.o
obj-$(CONFIG_CMD_MTD) += mtd.o
obj-$(CONFIG_CMD_MTDPARTS) += mtdparts.o

70
cmd/optee.c Normal file
View file

@ -0,0 +1,70 @@
// SPDX-License-Identifier: GPL-2.0
/*
* (C) Copyright 2024, Advanced Micro Devices, Inc.
*/
#include <command.h>
#include <errno.h>
#include <tee.h>
#include <vsprintf.h>
#define TA_HELLO_WORLD_CMD_INC_VALUE 0
/* This needs to match the UUID of the Hello World TA. */
#define TA_HELLO_WORLD_UUID \
{ 0x8aaaf200, 0x2450, 0x11e4, \
{ 0xab, 0xe2, 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b} }
static int hello_world_ta(unsigned int value)
{
const struct tee_optee_ta_uuid uuid = TA_HELLO_WORLD_UUID;
struct tee_open_session_arg session_arg;
struct udevice *tee = NULL;
struct tee_invoke_arg arg;
struct tee_param param[2];
int rc;
tee = tee_find_device(tee, NULL, NULL, NULL);
if (!tee)
return -ENODEV;
memset(&session_arg, 0, sizeof(session_arg));
tee_optee_ta_uuid_to_octets(session_arg.uuid, &uuid);
rc = tee_open_session(tee, &session_arg, 0, NULL);
if (rc) {
printf("tee_open_session(): failed(%d)\n", rc);
return rc;
}
arg.func = TA_HELLO_WORLD_CMD_INC_VALUE;
arg.session = session_arg.session;
param[0].attr = TEE_PARAM_ATTR_TYPE_VALUE_INOUT;
param[0].u.value.a = value;
printf("Value before: 0x%x\n", (int)param[0].u.value.a);
printf("Calling TA\n");
tee_invoke_func(tee, &arg, 1, param);
printf("Value after: 0x%x\n", (int)param[0].u.value.a);
return tee_close_session(tee, session_arg.session);
}
static int do_optee_hello_world_ta(struct cmd_tbl *cmdtp, int flag, int argc,
char * const argv[])
{
int ret, value = 0;
if (strcmp(argv[1], NULL))
value = hextoul(argv[1], NULL);
ret = hello_world_ta(value);
if (ret)
return CMD_RET_FAILURE;
return CMD_RET_SUCCESS;
}
U_BOOT_LONGHELP(optee,
"hello [<value>] Invoke the OP-TEE 'Hello World' TA\n");
U_BOOT_CMD_WITH_SUBCMDS(optee, "OP-TEE commands", optee_help_text,
U_BOOT_SUBCMD_MKENT(hello, 2, 1, do_optee_hello_world_ta));