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Merge pull request #847 from douglas-raillard-arm/dr/fix_abort_smc

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Fix TSPD implementation of STD SMC ABORT
This commit is contained in:
danh-arm 2017-02-28 12:06:54 +00:00 committed by GitHub
commit 5e810a85b1
1 changed files with 14 additions and 3 deletions
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17
services/spd/tspd/tspd_main.c
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@ -612,15 +612,26 @@ uint64_t tspd_smc_handler(uint32_t smc_fid,
break;
}
assert(handle == cm_get_context(NON_SECURE));
cm_el1_sysregs_context_save(NON_SECURE);
/* Abort the preempted SMC request */
if (!tspd_abort_preempted_smc(tsp_ctx))
if (!tspd_abort_preempted_smc(tsp_ctx)) {
/*
* If there was no preempted SMC to abort, return
* SMC_UNK.
*
* Restoring the NON_SECURE context is not necessary as
* the synchronous entry did not take place if the
* return code of tspd_abort_preempted_smc is zero.
*/
SMC_RET1(handle, SMC_UNK);
cm_set_next_eret_context(NON_SECURE);
break;
}
break;
cm_el1_sysregs_context_restore(NON_SECURE);
cm_set_next_eret_context(NON_SECURE);
SMC_RET0(handle);
/*
* Request from non secure world to resume the preempted