diff options
| author | Jorge Ramirez-Ortiz <jorge@foundries.io> | 2021-02-14 16:27:25 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-03-14 11:50:13 -0400 |
| commit | 5a8783c80c395608148282906b0c322cd9554faf (patch) | |
| tree | 78d48bb049d4ecf9aac10977303df12e93ac21cd /drivers/tee | |
| parent | 26839e5ddee369ea68acd8cbc8e24c7180c17e82 (diff) | |
drivers: tee: sandbox: SCP03 control emulator
Adds support for a working SCP03 emulation. Input parameters are
validated however the commands (enable, provision) executed by the TEE
are assumed to always succeed.
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/tee')
| -rw-r--r-- | drivers/tee/optee/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/tee/sandbox.c | 54 |
2 files changed, 59 insertions, 1 deletions
diff --git a/drivers/tee/optee/Kconfig b/drivers/tee/optee/Kconfig index 65622f30b1..d03028070b 100644 --- a/drivers/tee/optee/Kconfig +++ b/drivers/tee/optee/Kconfig @@ -31,6 +31,12 @@ config OPTEE_TA_RPC_TEST permits to test reverse RPC calls to TEE supplicant. Should be used only in sandbox env. +config OPTEE_TA_SCP03 + bool "Support SCP03 TA" + default y + help + Enables support for controlling (enabling, provisioning) the + Secure Channel Protocol 03 operation in the OP-TEE SCP03 TA. endmenu endif diff --git a/drivers/tee/sandbox.c b/drivers/tee/sandbox.c index 3a1d34d6fc..35e8542fa3 100644 --- a/drivers/tee/sandbox.c +++ b/drivers/tee/sandbox.c @@ -8,6 +8,7 @@ #include <tee.h> #include <tee/optee_ta_avb.h> #include <tee/optee_ta_rpc_test.h> +#include <tee/optee_ta_scp03.h> #include "optee/optee_msg.h" #include "optee/optee_private.h" @@ -68,6 +69,7 @@ void *optee_alloc_and_init_page_list(void *buf, ulong len, return NULL; } +#if defined(CONFIG_OPTEE_TA_SCP03) || defined(CONFIG_OPTEE_TA_AVB) static u32 get_attr(uint n, uint num_params, struct tee_param *params) { if (n >= num_params) @@ -79,7 +81,7 @@ static u32 get_attr(uint n, uint num_params, struct tee_param *params) static u32 check_params(u8 p0, u8 p1, u8 p2, u8 p3, uint num_params, struct tee_param *params) { - u8 p[] = { p0, p1, p2, p3}; + u8 p[] = { p0, p1, p2, p3 }; uint n; for (n = 0; n < ARRAY_SIZE(p); n++) @@ -97,6 +99,50 @@ bad_params: return TEE_ERROR_BAD_PARAMETERS; } +#endif + +#ifdef CONFIG_OPTEE_TA_SCP03 +static u32 pta_scp03_open_session(struct udevice *dev, uint num_params, + struct tee_param *params) +{ + /* + * We don't expect additional parameters when opening a session to + * this TA. + */ + return check_params(TEE_PARAM_ATTR_TYPE_NONE, TEE_PARAM_ATTR_TYPE_NONE, + TEE_PARAM_ATTR_TYPE_NONE, TEE_PARAM_ATTR_TYPE_NONE, + num_params, params); +} + +static u32 pta_scp03_invoke_func(struct udevice *dev, u32 func, uint num_params, + struct tee_param *params) +{ + u32 res; + static bool enabled; + + switch (func) { + case PTA_CMD_ENABLE_SCP03: + res = check_params(TEE_PARAM_ATTR_TYPE_VALUE_INPUT, + TEE_PARAM_ATTR_TYPE_NONE, + TEE_PARAM_ATTR_TYPE_NONE, + TEE_PARAM_ATTR_TYPE_NONE, + num_params, params); + if (res) + return res; + + if (!enabled) { + enabled = true; + } else { + } + + if (params[0].u.value.a) + + return TEE_SUCCESS; + default: + return TEE_ERROR_NOT_SUPPORTED; + } +} +#endif #ifdef CONFIG_OPTEE_TA_AVB static u32 ta_avb_open_session(struct udevice *dev, uint num_params, @@ -357,6 +403,12 @@ static const struct ta_entry ta_entries[] = { .invoke_func = ta_rpc_test_invoke_func, }, #endif +#ifdef CONFIG_OPTEE_TA_SCP03 + { .uuid = PTA_SCP03_UUID, + .open_session = pta_scp03_open_session, + .invoke_func = pta_scp03_invoke_func, + }, +#endif }; static void sandbox_tee_get_version(struct udevice *dev, |