feat(memory share): specify multiple receivers
First patch to support multiple receivers to a FFA_MEM_SHARE or
FFA_MEM_LEND operation.
Extends validation of the memory transaction descriptor to all the
specified borrowers.
The FFA_MEM_DONATE remains restricted to one borrower, as the sender
relinquishes ownership of the memory region.
At this point, expected to work for endpoints from the same world.
Change-Id: I72e2695d3a4715ee82bd775151e07a7fc3d6ccc3
Signed-off-by: J-Alves <joao.alves@arm.com>
diff --git a/inc/vmapi/hf/ffa.h b/inc/vmapi/hf/ffa.h
index ce02a3a..43b9d30 100644
--- a/inc/vmapi/hf/ffa.h
+++ b/inc/vmapi/hf/ffa.h
@@ -831,6 +831,9 @@
uint64_t reserved_0;
};
+/** The maximum number of recipients a memory region may be sent to. */
+#define MAX_MEM_SHARE_RECIPIENTS 1
+
/**
* Information about a set of pages which are being shared. This corresponds to
* table 45 of the FF-A 1.0 EAC specification, "Lend, donate or share memory