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securemsm-kernel : Add new functionality in HLOS for TZ to sleep for certain

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amount of time.

Change-Id: I6352bbe201ffcf81fde6ac7fc65e6f8eaeb0c64e
This commit is contained in:
Sonal Aggarwal
2022-02-21 15:45:54 +05:30
committed by basant kumar
parent bd912a6bb3
commit 4f96dd41ec
1 changed files with 20 additions and 0 deletions
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20
smcinvoke/smcinvoke.c
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@@ -990,6 +990,23 @@ out:
return ret; return ret;
} }
static int32_t smcinvoke_sleep(void *buf, size_t buf_len)
{
struct smcinvoke_tzcb_req *msg = buf;
uint32_t sleepTimeMs_val = 0;
if (msg->hdr.counts != OBJECT_COUNTS_PACK(1, 0, 0, 0) ||
(buf_len - msg->args[0].b.offset < msg->args[0].b.size)) {
pr_err("Invalid counts received for sleeping in hlos\n");
return OBJECT_ERROR_INVALID;
}
/* Time in miliseconds is expected from tz */
sleepTimeMs_val = *((uint32_t *)(buf + msg->args[0].b.offset));
msleep(sleepTimeMs_val);
return OBJECT_OK;
}
static void process_kernel_obj(void *buf, size_t buf_len) static void process_kernel_obj(void *buf, size_t buf_len)
{ {
struct smcinvoke_tzcb_req *cb_req = buf; struct smcinvoke_tzcb_req *cb_req = buf;
@@ -1001,6 +1018,9 @@ static void process_kernel_obj(void *buf, size_t buf_len)
case OBJECT_OP_YIELD: case OBJECT_OP_YIELD:
cb_req->result = OBJECT_OK; cb_req->result = OBJECT_OK;
break; break;
case OBJECT_OP_SLEEP:
cb_req->result = smcinvoke_sleep(buf, buf_len);
break;
default: default:
pr_err(" invalid operation for tz kernel object\n"); pr_err(" invalid operation for tz kernel object\n");
cb_req->result = OBJECT_ERROR_INVALID; cb_req->result = OBJECT_ERROR_INVALID;