Teesl_smc

Macros
#define	U(n)   ((unsigned int)(n))
	Defined for compatibility now.

Typedefs
typedef int	TEES_SMCHandle
	SMC interface handle.
typedef struct smc_data	TEES_SMCData
	SMC command data.

Functions
TEE_Result	TEES_SMCInit (TEES_SMCHandle *handle)
	Initialize handler fields. More...
TEE_Result	TEES_SMCFini (TEES_SMCHandle handle)
	release SMC interface handle. More...
TEE_Result	TEES_SMCCommand (TEES_SMCHandle handle, TEES_SMCData *data)
	Send SMC command to EL3. More...

Detailed Description

Function Documentation

TEE_Result TEES_SMCCommand	(	TEES_SMCHandle	handle,
		TEES_SMCData *	data
	)

#include <tee_smc.h>

Send SMC command to EL3.

Parameters

[in]	handle	SMC handle which contains device descriptor.
[in,out]	data	SMC command data.

Return values

TEE_SUCCESS

on success, error code otherwise.

Example:

…
TEES_SMCHandle handle;
TEES_SMCData data = {
    .arg_types = SMC_ARG_TYPES(SMC_ARG_TYPE_VALUE,
                               SMC_ARG_TYPE_VALUE,
                               0, 0, 0, 0, 0);
    .args.arg[0] = CREATE_SMC_CMD(SMC_TYPE_FAST,          // SMC command code
                                  SMC_AARCH_32,
                                  SMC_SIP_SERVICE_MASK,
                                  0x42),
    .args.arg[1] = 5000000,                               // some SMC argument
};

TEE_Result res = TEES_SMCInit(&handle);
if (res != TEE_SUCCESS) {
    printf("TEST: Failed to initalize SMC, tee_err: %#x\n", res);
    return res;
}

res = TEES_SMCCommand(handle, &data);
if (res != TEE_SUCCESS) {
    printf("TEST: Failed to call SMC, tee_err: %#x\n", res);
    TEES_SMCFini(handle);
    return res;
}

TEES_SMCFini(handle);
…

TEE_Result TEES_SMCFini

(

TEES_SMCHandle

handle

)

#include <tee_smc.h>

release SMC interface handle.

Parameters

[in]

handle

SMC handle which contains device descriptor.

Return values

TEE_SUCCESS

on success, error code otherwise.

TEE_Result TEES_SMCInit

(

TEES_SMCHandle *

handle

)

#include <tee_smc.h>

Initialize handler fields.

Parameters

[out]

handle

Pointer to SMC handle which contains device descriptor.

Return values

TEE_SUCCESS

on success, error code otherwise.