diff options
Diffstat (limited to 'services/spd/tspd/tspd_main.c')
| -rw-r--r-- | services/spd/tspd/tspd_main.c | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/services/spd/tspd/tspd_main.c b/services/spd/tspd/tspd_main.c index 6896379..15b3922 100644 --- a/services/spd/tspd/tspd_main.c +++ b/services/spd/tspd/tspd_main.c @@ -129,7 +129,10 @@ int32_t bl32_init(meminfo *bl32_meminfo) CTX_GPREG_X0, (uint64_t) bl32_meminfo); - /* Arrange for an entry into the secure payload */ + /* + * Arrange for an entry into the test secure payload. We expect an array + * of vectors in return + */ rc = tspd_synchronous_sp_entry(tsp_ctx); assert(rc != 0); if (rc) @@ -189,11 +192,46 @@ uint64_t tspd_smc_handler(uint32_t smc_fid, /* Should never reach here */ assert(0); + /* + * These function IDs is used only by the SP to indicate it has + * finished: + * 1. turning itself on in response to an earlier psci + * cpu_on request + * 2. resuming itself after an earlier psci cpu_suspend + * request. + */ + case TSP_ON_DONE: + case TSP_RESUME_DONE: + + /* + * These function IDs is used only by the SP to indicate it has + * finished: + * 1. suspending itself after an earlier psci cpu_suspend + * request. + * 2. turning itself off in response to an earlier psci + * cpu_off request. + */ + case TSP_OFF_DONE: + case TSP_SUSPEND_DONE: + if (ns) + SMC_RET1(handle, SMC_UNK); + + /* + * SP reports completion. The SPD must have initiated the + * original request through a synchronous entry into the SP. + * Jump back to the original C runtime context, and pass x1 as + * return value to the caller + */ + tspd_synchronous_sp_exit(&tspd_sp_context[linear_id], x1); + + /* Should never reach here */ + assert(0); + default: - panic(); + break; } - SMC_RET1(handle, 0); + SMC_RET1(handle, SMC_UNK); } /* Define a SPD runtime service descriptor */ |