diff options
Diffstat (limited to 'services/std_svc/spm/sprt.c')
| -rw-r--r-- | services/std_svc/spm/sprt.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/services/std_svc/spm/sprt.c b/services/std_svc/spm/sprt.c index 8d0c510b..5330025e 100644 --- a/services/std_svc/spm/sprt.c +++ b/services/std_svc/spm/sprt.c @@ -39,6 +39,20 @@ uint64_t sprt_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, case SPRT_VERSION: SMC_RET1(handle, SPRT_VERSION_COMPILED); + case SPRT_PUT_RESPONSE_AARCH64: + /* + * Registers x1-x3 aren't saved by default to the context, + * but they are needed after spm_sp_synchronous_exit() because + * they hold return values. + */ + SMC_SET_GP(handle, CTX_GPREG_X1, x1); + SMC_SET_GP(handle, CTX_GPREG_X2, x2); + SMC_SET_GP(handle, CTX_GPREG_X3, x3); + spm_sp_synchronous_exit(SPRT_PUT_RESPONSE_AARCH64); + + case SPRT_YIELD_AARCH64: + spm_sp_synchronous_exit(SPRT_YIELD_AARCH64); + default: break; } |