feat(handoff): add func to check and init a tl
Add a function to check whether a transfer list has been initialized
at the input address. If not, initialize a transfer list at the
specified location with the given size. This is to help ensure that we
don't accidently overwrite a transfer list that's been passed from a
previous stage.
Change-Id: Ic5906626df09d3801435488e258490765e8f81eb
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
diff --git a/include/lib/transfer_list.h b/include/lib/transfer_list.h
index 1b5ec2d..047b2d0 100644
--- a/include/lib/transfer_list.h
+++ b/include/lib/transfer_list.h
@@ -110,6 +110,7 @@
CASSERT(sizeof(struct transfer_list_entry) == U(0x8), assert_transfer_list_entry_size);
void transfer_list_dump(struct transfer_list_header *tl);
+struct transfer_list_header *transfer_list_ensure(void *addr, size_t size);
entry_point_info_t *
transfer_list_set_handoff_args(struct transfer_list_header *tl,
entry_point_info_t *ep_info);