diff options
Diffstat (limited to 'bl32')
| -rw-r--r-- | bl32/tsp/aarch64/tsp_entrypoint.S | 24 | ||||
| -rw-r--r-- | bl32/tsp/tsp_main.c | 66 |
2 files changed, 90 insertions, 0 deletions
diff --git a/bl32/tsp/aarch64/tsp_entrypoint.S b/bl32/tsp/aarch64/tsp_entrypoint.S index 8fae1b2b..1cda1653 100644 --- a/bl32/tsp/aarch64/tsp_entrypoint.S +++ b/bl32/tsp/aarch64/tsp_entrypoint.S @@ -162,6 +162,8 @@ func tsp_vector_table b tsp_cpu_resume_entry b tsp_cpu_suspend_entry b tsp_fiq_entry + b tsp_system_off_entry + b tsp_system_reset_entry /*--------------------------------------------- * This entrypoint is used by the TSPD when this @@ -178,6 +180,28 @@ func tsp_cpu_off_entry restore_args_call_smc /*--------------------------------------------- + * This entrypoint is used by the TSPD when the + * system is about to be switched off (through + * a SYSTEM_OFF psci call) to ask the TSP to + * perform any necessary bookkeeping. + * --------------------------------------------- + */ +func tsp_system_off_entry + bl tsp_system_off_main + restore_args_call_smc + + /*--------------------------------------------- + * This entrypoint is used by the TSPD when the + * system is about to be reset (through a + * SYSTEM_RESET psci call) to ask the TSP to + * perform any necessary bookkeeping. + * --------------------------------------------- + */ +func tsp_system_reset_entry + bl tsp_system_reset_main + restore_args_call_smc + + /*--------------------------------------------- * This entrypoint is used by the TSPD when this * cpu is turned on using a CPU_ON psci call to * ask the TSP to initialise itself i.e. setup diff --git a/bl32/tsp/tsp_main.c b/bl32/tsp/tsp_main.c index 08d89c3d..193ba29b 100644 --- a/bl32/tsp/tsp_main.c +++ b/bl32/tsp/tsp_main.c @@ -297,6 +297,72 @@ tsp_args_t *tsp_cpu_resume_main(uint64_t suspend_level, } /******************************************************************************* + * This function performs any remaining bookkeeping in the test secure payload + * before the system is switched off (in response to a psci SYSTEM_OFF request) + ******************************************************************************/ +tsp_args_t *tsp_system_off_main(uint64_t arg0, + uint64_t arg1, + uint64_t arg2, + uint64_t arg3, + uint64_t arg4, + uint64_t arg5, + uint64_t arg6, + uint64_t arg7) +{ + uint64_t mpidr = read_mpidr(); + uint32_t linear_id = platform_get_core_pos(mpidr); + + /* Update this cpu's statistics */ + tsp_stats[linear_id].smc_count++; + tsp_stats[linear_id].eret_count++; + +#if LOG_LEVEL >= LOG_LEVEL_INFO + spin_lock(&console_lock); + INFO("TSP: cpu 0x%x SYSTEM_OFF request\n", mpidr); + INFO("TSP: cpu 0x%x: %d smcs, %d erets requests\n", mpidr, + tsp_stats[linear_id].smc_count, + tsp_stats[linear_id].eret_count); + spin_unlock(&console_lock); +#endif + + /* Indicate to the SPD that we have completed this request */ + return set_smc_args(TSP_SYSTEM_OFF_DONE, 0, 0, 0, 0, 0, 0, 0); +} + +/******************************************************************************* + * This function performs any remaining bookkeeping in the test secure payload + * before the system is reset (in response to a psci SYSTEM_RESET request) + ******************************************************************************/ +tsp_args_t *tsp_system_reset_main(uint64_t arg0, + uint64_t arg1, + uint64_t arg2, + uint64_t arg3, + uint64_t arg4, + uint64_t arg5, + uint64_t arg6, + uint64_t arg7) +{ + uint64_t mpidr = read_mpidr(); + uint32_t linear_id = platform_get_core_pos(mpidr); + + /* Update this cpu's statistics */ + tsp_stats[linear_id].smc_count++; + tsp_stats[linear_id].eret_count++; + +#if LOG_LEVEL >= LOG_LEVEL_INFO + spin_lock(&console_lock); + INFO("TSP: cpu 0x%x SYSTEM_RESET request\n", mpidr); + INFO("TSP: cpu 0x%x: %d smcs, %d erets requests\n", mpidr, + tsp_stats[linear_id].smc_count, + tsp_stats[linear_id].eret_count); + spin_unlock(&console_lock); +#endif + + /* Indicate to the SPD that we have completed this request */ + return set_smc_args(TSP_SYSTEM_RESET_DONE, 0, 0, 0, 0, 0, 0, 0); +} + +/******************************************************************************* * TSP fast smc handler. The secure monitor jumps to this function by * doing the ERET after populating X0-X7 registers. The arguments are received * in the function arguments in order. Once the service is rendered, this |