feat(spmc): enable handling of the NS bit
In FF-A v1.1 the NS bit is used by the SPMC to specify the
security state of a memory region retrieved by a SP.
Enable the SPMC to set the bit for v1.1 callers or v1.0
callers that explicitly request the usage via FFA_FEATURES.
In this implementation the sender of the memory region must
reside in the normal world and the SPMC does not support
changing the security state of memory regions therefore
always set the NS bit if required by the caller.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I215756b28e2382082933ba1dcc7584e7faf4b36b
diff --git a/include/services/el3_spmc_ffa_memory.h b/include/services/el3_spmc_ffa_memory.h
index 8e0c5ae..2037eca 100644
--- a/include/services/el3_spmc_ffa_memory.h
+++ b/include/services/el3_spmc_ffa_memory.h
@@ -63,6 +63,8 @@
* typedef ffa_mem_attr8_t - Memory region attributes v1.0.
* typedef ffa_mem_attr16_t - Memory region attributes v1.1.
*
+ * * @FFA_MEM_ATTR_NS_BIT:
+ * Memory security state.
* * @FFA_MEM_ATTR_DEVICE_NGNRNE:
* Device-nGnRnE.
* * @FFA_MEM_ATTR_DEVICE_NGNRE:
@@ -84,6 +86,7 @@
*/
typedef uint8_t ffa_mem_attr8_t;
typedef uint16_t ffa_mem_attr16_t;
+#define FFA_MEM_ATTR_NS_BIT (0x1U << 6)
#define FFA_MEM_ATTR_DEVICE_NGNRNE ((1U << 4) | (0x0U << 2))
#define FFA_MEM_ATTR_DEVICE_NGNRE ((1U << 4) | (0x1U << 2))
#define FFA_MEM_ATTR_DEVICE_NGRE ((1U << 4) | (0x2U << 2))