diff options
Diffstat (limited to 'security/tlk_driver/ote_comms.c')
| -rw-r--r-- | security/tlk_driver/ote_comms.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/security/tlk_driver/ote_comms.c b/security/tlk_driver/ote_comms.c index eb9fc688e384..46d7fc679b78 100644 --- a/security/tlk_driver/ote_comms.c +++ b/security/tlk_driver/ote_comms.c @@ -102,6 +102,42 @@ static int te_setup_temp_buffers(struct te_request *request, return ret; } +static int te_setup_temp_buffers_compat(struct te_request_compat *request, + struct tlk_context *context) +{ + uint32_t i; + int ret = OTE_SUCCESS; + struct te_oper_param_compat *params; + + params = (struct te_oper_param_compat *)(uintptr_t)request->params; + for (i = 0; i < request->params_size; i++) { + switch (params[i].type) { + case TE_PARAM_TYPE_NONE: + case TE_PARAM_TYPE_INT_RO: + case TE_PARAM_TYPE_INT_RW: + break; + case TE_PARAM_TYPE_MEM_RO: + case TE_PARAM_TYPE_MEM_RW: + ret = te_pin_mem_buffers( + (void *)(uintptr_t)params[i].u.Mem.base, + params[i].u.Mem.len, + context); + if (ret < 0) { + pr_err("%s failed with err (%d)\n", + __func__, ret); + ret = OTE_ERROR_BAD_PARAMETERS; + break; + } + break; + default: + pr_err("%s: OTE_ERROR_BAD_PARAMETERS\n", __func__); + ret = OTE_ERROR_BAD_PARAMETERS; + break; + } + } + return ret; +} + static void te_del_shmem_desc(void *buffer, struct tlk_context *context) { struct te_shmem_desc *shmem_desc, *tmp_shmem_desc; @@ -150,6 +186,32 @@ static void te_unpin_temp_buffers(struct te_request *request, } } +static void te_unpin_temp_buffers_compat(struct te_request_compat *request, + struct tlk_context *context) +{ + uint32_t i; + struct te_oper_param_compat *params; + + params = (struct te_oper_param_compat *)(uintptr_t)request->params; + for (i = 0; i < request->params_size; i++) { + switch (params[i].type) { + case TE_PARAM_TYPE_NONE: + case TE_PARAM_TYPE_INT_RO: + case TE_PARAM_TYPE_INT_RW: + break; + case TE_PARAM_TYPE_MEM_RO: + case TE_PARAM_TYPE_MEM_RW: + te_unregister_memory( + (void *)(uintptr_t)params[i].u.Mem.base, + context); + break; + default: + pr_err("%s: OTE_ERROR_BAD_PARAMETERS\n", __func__); + break; + } + } +} + #ifdef CONFIG_SMP cpumask_t saved_cpu_mask; static void switch_cpumask_to_cpu0(void) @@ -278,6 +340,30 @@ static void do_smc(struct te_request *request, struct tlk_device *dev) } /* + * Do an SMC call + */ +static void do_smc_compat(struct te_request_compat *request, + struct tlk_device *dev) +{ + uint32_t smc_args; + uint32_t smc_params = 0; + + smc_args = (char *)request - dev->req_param_buf; + if (request->params) { + smc_params = + (char *)(uintptr_t)request->params - dev->req_param_buf; + } + + tlk_generic_smc(request->type, smc_args, smc_params); + + /* + * Check to see if there are any logs in written by TLK. + * If there are, print them out. + */ + ote_print_logs(); +} + +/* * VPR programming SMC */ int te_set_vpr_params(void *vpr_base, size_t vpr_size) @@ -373,6 +459,79 @@ void te_launch_operation(struct te_launchop *cmd, te_unpin_temp_buffers(request, context); } +/* + * Open session SMC (supporting client-based te_open_session() calls) + */ +void te_open_session_compat(struct te_opensession_compat *cmd, + struct te_request_compat *request, + struct tlk_context *context) +{ + int ret; + + ret = te_setup_temp_buffers_compat(request, context); + if (ret != OTE_SUCCESS) { + pr_err("te_setup_temp_buffers failed err (0x%x)\n", ret); + SET_RESULT(request, ret, OTE_RESULT_ORIGIN_API); + return; + } + + memcpy(&request->dest_uuid, + &cmd->dest_uuid, + sizeof(struct te_service_id)); + + pr_info("OPEN_CLIENT_SESSION_COMPAT: 0x%x 0x%x 0x%x 0x%x\n", + request->dest_uuid[0], + request->dest_uuid[1], + request->dest_uuid[2], + request->dest_uuid[3]); + + request->type = TE_SMC_OPEN_SESSION; + + do_smc_compat(request, context->dev); + + te_unpin_temp_buffers_compat(request, context); +} + +/* + * Close session SMC (supporting client-based te_close_session() calls) + */ +void te_close_session_compat(struct te_closesession_compat *cmd, + struct te_request_compat *request, + struct tlk_context *context) +{ + request->session_id = cmd->session_id; + request->type = TE_SMC_CLOSE_SESSION; + + do_smc_compat(request, context->dev); + if (request->result) + pr_info("Error closing session: %08x\n", request->result); +} + +/* + * Launch operation SMC (supporting client-based te_launch_operation() calls) + */ +void te_launch_operation_compat(struct te_launchop_compat *cmd, + struct te_request_compat *request, + struct tlk_context *context) +{ + int ret; + + ret = te_setup_temp_buffers_compat(request, context); + if (ret != OTE_SUCCESS) { + pr_err("te_setup_temp_buffers failed err (0x%x)\n", ret); + SET_RESULT(request, ret, OTE_RESULT_ORIGIN_API); + return; + } + + request->session_id = cmd->session_id; + request->command_id = cmd->operation.command; + request->type = TE_SMC_LAUNCH_OPERATION; + + do_smc_compat(request, context->dev); + + te_unpin_temp_buffers_compat(request, context); +} + static int __init tlk_register_irq_handler(void) { tlk_generic_smc(TE_SMC_REGISTER_IRQ_HANDLER, |