/*
* tee_close_session - invoke TEE to close a GP TEE session
*/
static TEEC_Result tee_close_session(struct tee_session *ts,
enum t_cmd_service_id sec_cmd,
u32 ta_cmd,
u32 param_type,
TEEC_Value params[TEEC_CONFIG_PAYLOAD_REF_COUNT],
u32 *origin)
{
TEEC_Result ret_tee;
struct teesmc32_arg *arg32;
uintptr_t parg32;
arg32 = (typeof(arg32))alloc_tee_arg(&parg32, TEESMC32_GET_ARG_SIZE(0));
if (arg32 == NULL) {
free_tee_arg(parg32);
return TEEC_ERROR_OUT_OF_MEMORY;
}
dev_dbg(DEV, "> [%p]\n", (void *)ts->id);
memset(arg32, 0, sizeof(*arg32));
arg32->cmd = TEESMC_CMD_CLOSE_SESSION;
arg32->session = ts->id;
mutex_lock(&e_mutex_teez);
call_tee(parg32, arg32);
mutex_unlock(&e_mutex_teez);
ret_tee = arg32->ret;
if (origin)
*origin = arg32->ret_origin;
free_tee_arg(parg32);
dev_dbg(DEV, "< [%p]\n", (void *)ret_tee);
return ret_tee;
}
/*
* tee_invoke_command - invoke TEE to invoke a GP TEE command
*/
static int tz_invoke(struct tee_session *sess, struct tee_cmd *cmd)
{
struct tee *tee;
struct tee_tz *ptee;
int ret = 0;
struct teesmc32_arg *arg32;
uintptr_t parg32;
struct teesmc32_param *params32;
BUG_ON(!sess->ctx->tee);
BUG_ON(!sess->ctx->tee->priv);
tee = sess->ctx->tee;
ptee = tee->priv;
dev_dbg(DEV, "> sessid %x cmd %x type %x\n",
sess->sessid, cmd->cmd, cmd->param.type);
if (!CAPABLE(tee)) {
dev_dbg(tee->dev, "< not capable\n");
return -EBUSY;
}
arg32 = (typeof(arg32))alloc_tee_arg(ptee, &parg32,
TEESMC32_GET_ARG_SIZE(TEEC_CONFIG_PAYLOAD_REF_COUNT));
if (!arg32) {
free_tee_arg(ptee, parg32);
return TEEC_ERROR_OUT_OF_MEMORY;
}
memset(arg32, 0, sizeof(*arg32));
arg32->num_params = TEEC_CONFIG_PAYLOAD_REF_COUNT;
params32 = TEESMC32_GET_PARAMS(arg32);
arg32->cmd = TEESMC_CMD_INVOKE_COMMAND;
arg32->session = sess->sessid;
arg32->ta_func = cmd->cmd;
set_params(ptee, params32, cmd->param.type, &cmd->param);
call_tee(ptee, parg32, arg32);
get_params(&cmd->param, params32);
if (arg32->ret != TEEC_ERROR_COMMUNICATION) {
cmd->err = arg32->ret;
cmd->origin = arg32->ret_origin;
} else
ret = -EBUSY;
free_tee_arg(ptee, parg32);
dev_dbg(DEV, "< %x:%d\n", arg32->ret, ret);
return ret;
}
/*
* tee_invoke_command - invoke TEE to invoke a GP TEE command
*/
static TEEC_Result tee_invoke_command(struct tee_session *ts,
enum t_cmd_service_id sec_cmd,
uint32_t ta_cmd,
uint32_t param_type,
TEEC_Value params[TEEC_CONFIG_PAYLOAD_REF_COUNT],
uint32_t *origin)
{
TEEC_Result ret_tee;
struct teesmc32_arg *arg32;
uintptr_t parg32;
struct teesmc32_param *params32;
dev_dbg(DEV, "> [%p] [%d]\n", (void *)ts->id, ta_cmd);
arg32 = (typeof(arg32))alloc_tee_arg(&parg32,
TEESMC32_GET_ARG_SIZE(TEEC_CONFIG_PAYLOAD_REF_COUNT));
if (!arg32) {
free_tee_arg(parg32);
return TEEC_ERROR_OUT_OF_MEMORY;
}
memset(arg32, 0, sizeof(*arg32));
arg32->num_params = TEEC_CONFIG_PAYLOAD_REF_COUNT;
params32 = TEESMC32_GET_PARAMS(arg32);
arg32->cmd = TEESMC_CMD_INVOKE_COMMAND;
arg32->session = ts->id;
arg32->ta_func = ta_cmd;
set_params(params32, param_type, params);
mutex_lock(&e_mutex_teez);
call_tee(parg32, arg32);
mutex_unlock(&e_mutex_teez);
ret_tee = arg32->ret;
get_params(params, params32);
if (origin)
*origin = arg32->ret_origin;
free_tee_arg(parg32);
dev_dbg(DEV, "< [%p]\n", (void *)ret_tee);
return ret_tee;
}
/*
* tee_close_session - invoke TEE to close a GP TEE session
*/
static int tz_close(struct tee_session *sess)
{
struct tee *tee;
struct tee_tz *ptee;
int ret = 0;
struct teesmc32_arg *arg32;
uintptr_t parg32;
BUG_ON(!sess->ctx->tee);
BUG_ON(!sess->ctx->tee->priv);
tee = sess->ctx->tee;
ptee = tee->priv;
dev_dbg(DEV, "close on sessid=%08x\n", sess->sessid);
if (!CAPABLE(tee)) {
dev_dbg(tee->dev, "< not capable\n");
return -EBUSY;
}
arg32 = alloc_tee_arg(ptee, &parg32, TEESMC32_GET_ARG_SIZE(0));
if (arg32 == NULL) {
free_tee_arg(ptee, parg32);
return TEEC_ERROR_OUT_OF_MEMORY;
}
dev_dbg(DEV, "> [%x]\n", sess->sessid);
memset(arg32, 0, sizeof(*arg32));
arg32->cmd = TEESMC_CMD_CLOSE_SESSION;
arg32->session = sess->sessid;
call_tee(ptee, parg32, arg32);
if (arg32->ret == TEEC_ERROR_COMMUNICATION)
ret = -EBUSY;
free_tee_arg(ptee, parg32);
dev_dbg(DEV, "< %x:%d\n", arg32->ret, ret);
return ret;
}
/*
* tee_cancel_command - invoke TEE to cancel a GP TEE command
*/
static int tz_cancel(struct tee_session *sess, struct tee_cmd *cmd)
{
struct tee *tee;
struct tee_tz *ptee;
int ret = 0;
struct teesmc32_arg *arg32;
uintptr_t parg32;
BUG_ON(!sess->ctx->tee);
BUG_ON(!sess->ctx->tee->priv);
tee = sess->ctx->tee;
ptee = tee->priv;
dev_dbg(DEV, "cancel on sessid=%08x\n", sess->sessid);
arg32 = alloc_tee_arg(ptee, &parg32, TEESMC32_GET_ARG_SIZE(0));
if (arg32 == NULL) {
free_tee_arg(ptee, parg32);
return TEEC_ERROR_OUT_OF_MEMORY;
}
memset(arg32, 0, sizeof(*arg32));
arg32->cmd = TEESMC_CMD_CANCEL;
arg32->session = sess->sessid;
call_tee(ptee, parg32, arg32);
if (arg32->ret == TEEC_ERROR_COMMUNICATION)
ret = -EBUSY;
free_tee_arg(ptee, parg32);
dev_dbg(DEV, "< %x:%d\n", arg32->ret, ret);
return ret;
}
/*
* tee_open_session - invoke TEE to open a GP TEE session
*/
static int tz_open(struct tee_session *sess, struct tee_cmd *cmd)
{
struct tee *tee;
struct tee_tz *ptee;
int ret = 0;
struct teesmc32_arg *arg32;
struct teesmc32_param *params32;
struct teesmc_meta_open_session *meta;
uintptr_t parg32;
uintptr_t pmeta;
size_t num_meta = 1;
uint8_t *ta;
TEEC_UUID *uuid;
BUG_ON(!sess->ctx->tee);
BUG_ON(!sess->ctx->tee->priv);
tee = sess->ctx->tee;
ptee = tee->priv;
if (cmd->uuid)
uuid = cmd->uuid->kaddr;
else
uuid = NULL;
dev_dbg(tee->dev, "> ta kaddr %p, uuid=%08x-%04x-%04x\n",
(cmd->ta) ? cmd->ta->kaddr : NULL,
((uuid) ? uuid->timeLow : 0xDEAD),
((uuid) ? uuid->timeMid : 0xDEAD),
((uuid) ? uuid->timeHiAndVersion : 0xDEAD));
if (!CAPABLE(ptee->tee)) {
dev_dbg(tee->dev, "< not capable\n");
return -EBUSY;
}
/* case ta binary is inside the open request */
ta = NULL;
if (cmd->ta)
ta = cmd->ta->kaddr;
if (ta)
num_meta++;
arg32 = alloc_tee_arg(ptee, &parg32, TEESMC32_GET_ARG_SIZE(
TEEC_CONFIG_PAYLOAD_REF_COUNT + num_meta));
meta = alloc_tee_arg(ptee, &pmeta, sizeof(*meta));
if ((arg32 == NULL) || (meta == NULL)) {
free_tee_arg(ptee, parg32);
free_tee_arg(ptee, pmeta);
return TEEC_ERROR_OUT_OF_MEMORY;
}
memset(arg32, 0, sizeof(*arg32));
memset(meta, 0, sizeof(*meta));
arg32->num_params = TEEC_CONFIG_PAYLOAD_REF_COUNT + num_meta;
params32 = TEESMC32_GET_PARAMS(arg32);
arg32->cmd = TEESMC_CMD_OPEN_SESSION;
params32[0].u.memref.buf_ptr = pmeta;
params32[0].u.memref.size = sizeof(*meta);
params32[0].attr = TEESMC_ATTR_TYPE_MEMREF_INPUT |
TEESMC_ATTR_META | get_cache_attrs(ptee);
if (ta) {
params32[1].u.memref.buf_ptr =
tee_shm_pool_v2p(DEV, ptee->shm_pool, cmd->ta->kaddr);
params32[1].u.memref.size = cmd->ta->size_req;
params32[1].attr = TEESMC_ATTR_TYPE_MEMREF_INPUT |
TEESMC_ATTR_META | get_cache_attrs(ptee);
}
if (uuid != NULL)
memcpy(meta->uuid, uuid, TEESMC_UUID_LEN);
meta->clnt_login = 0; /* FIXME: is this reliable ? used ? */
params32 += num_meta;
set_params(ptee, params32, cmd->param.type, &cmd->param);
call_tee(ptee, parg32, arg32);
get_params(&cmd->param, params32);
if (arg32->ret != TEEC_ERROR_COMMUNICATION) {
sess->sessid = arg32->session;
cmd->err = arg32->ret;
cmd->origin = arg32->ret_origin;
} else
ret = -EBUSY;
free_tee_arg(ptee, parg32);
free_tee_arg(ptee, pmeta);
dev_dbg(DEV, "< %x:%d\n", arg32->ret, ret);
return ret;
}
/*
* tee_open_session - invoke TEE to open a GP TEE session
*/
static TEEC_Result tee_open_session(struct tee_session *ts,
enum t_cmd_service_id sec_cmd,
uint32_t ta_cmd,
uint32_t param_type,
TEEC_Value params[TEEC_CONFIG_PAYLOAD_REF_COUNT],
uint32_t *origin)
{
TEEC_Result ret_tee;
struct teesmc32_arg *arg32;
uintptr_t parg32;
struct teesmc32_param *params32;
struct teesmc_meta_open_session *meta;
uintptr_t pmeta;
size_t num_meta = 1;
dev_dbg(DEV, "> uuid=%08x-%04x-%04x\n",
((ts->uuid) ? ts->uuid->timeLow : 0xDEAD),
((ts->uuid) ? ts->uuid->timeMid : 0xDEAD),
((ts->uuid) ? ts->uuid->
timeHiAndVersion : 0xDEAD));
if (tee_tz_ready == false)
return TEEC_ERROR_BUSY;
if (ts->ta)
num_meta++;
arg32 = (typeof(arg32))alloc_tee_arg(&parg32, TEESMC32_GET_ARG_SIZE(
TEEC_CONFIG_PAYLOAD_REF_COUNT + num_meta));
meta = (typeof(meta))alloc_tee_arg(&pmeta, sizeof(*meta));
if ((arg32 == NULL) || (meta == NULL)) {
free_tee_arg(parg32);
free_tee_arg(pmeta);
return TEEC_ERROR_OUT_OF_MEMORY;
}
memset(arg32, 0, sizeof(*arg32));
memset(meta, 0, sizeof(*meta));
arg32->num_params = TEEC_CONFIG_PAYLOAD_REF_COUNT + num_meta;
params32 = TEESMC32_GET_PARAMS(arg32);
arg32->cmd = TEESMC_CMD_OPEN_SESSION;
params32[0].u.memref.buf_ptr = pmeta;
params32[0].u.memref.size = sizeof(*meta);
params32[0].attr = TEESMC_ATTR_TYPE_MEMREF_INPUT |
TEESMC_ATTR_META | get_cache_attrs();
if (ts->ta != NULL) {
params32[1].u.memref.buf_ptr =
tee_shm_pool_v2p(DEV, TZop.Allocator, ts->ta);
params32[1].u.memref.size = ts->tasize;
params32[1].attr = TEESMC_ATTR_TYPE_MEMREF_INPUT |
TEESMC_ATTR_META | get_cache_attrs();
}
if (ts->uuid != NULL)
memcpy(meta->uuid, ts->uuid, TEESMC_UUID_LEN);
meta->clnt_login = ts->login;
set_params(params32 + num_meta, param_type, params);
mutex_lock(&e_mutex_teez);
call_tee(parg32, arg32);
mutex_unlock(&e_mutex_teez);
ts->id = arg32->session;
ret_tee = arg32->ret;
if (origin)
*origin = arg32->ret_origin;
get_params(params, params32 + num_meta);
free_tee_arg(parg32);
free_tee_arg(pmeta);
dev_dbg(DEV, "< [%d]\n", ret_tee);
return ret_tee;
}
