fix(el3-spmc): compute full FF-A V1.1 desc size

This patch fixes an issue in spmc_ffa_fill_desc.

In order to compute the spmc_shm_get_v1_1_descriptor_size,
fragment_length which is a fraction of the descriptor size is used as
desc_size parameter. It has to be replaced with the
full V1.0 descriptor size(obj->desc_filled).

Ran a subset of our tests and they are passing.

Change-Id: Ia4bbc5dabf0b77fa53d923ff609ee48ecd5bf549
Signed-off-by: vallau01 <valentin.laurent@trustonic.com>
Signed-off-by: Lukas Hanel <lukas.hanel@trustonic.com>

diff --git a/services/std_svc/spm/el3_spmc/spmc_shared_mem.c b/services/std_svc/spm/el3_spmc/spmc_shared_mem.c
index eab2096cff63573ffa49222eeb3681f653aeb091..5a3fe94cd191233009095890c1093d95878b20ae 100644 (file)
--- a/services/std_svc/spm/el3_spmc/spmc_shared_mem.c
+++ b/services/std_svc/spm/el3_spmc/spmc_shared_mem.c
@@ -1018,7 +1018,7 @@ static long spmc_ffa_fill_desc(struct mailbox *mbox,
                /* Calculate the size that the v1.1 descriptor will required. */
                size_t v1_1_desc_size =
                    spmc_shm_get_v1_1_descriptor_size((void *) &obj->desc,
-                                                     fragment_length);
+                                                     obj->desc_size);
 
                if (v1_1_desc_size == 0U) {
                        ERROR("%s: cannot determine size of descriptor.\n",