core: platform registers SDP memories

Secure data path support is conditioned to CFG_SECURE_DATA_PATH.

Core statically defines the SDP shared memory objects through macro
register_sdp_shm().

Configuration directives CFG_TEE_SDP_SHM_BASE/_SIZE allow to register
a "default" SDP memory area from generic implementation.

SDP memories are not default map in OP-TEE core hence locations
are not tested against OP-TEE memory layout. This change verifies
the SDP memories layout against OP-TEE memory mapping memory. This
is mandatory to prevent false identification of memory references
if referring only to the list of the registered SDP memories when
identifying a memory reference (later changes for SDP support).

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/core/arch/arm/include/mm/core_mmu.h b/core/arch/arm/include/mm/core_mmu.h
index d9f96d4e..4515350c 100644
--- a/core/arch/arm/include/mm/core_mmu.h
+++ b/core/arch/arm/include/mm/core_mmu.h
@@ -100,6 +100,7 @@ enum teecore_memtypes {
 	MEM_AREA_IO_SEC,
 	MEM_AREA_RES_VASPACE,
 	MEM_AREA_TA_VASPACE,
+	MEM_AREA_SDP_MEM,
 	MEM_AREA_MAXTYPE
 };
 
@@ -115,6 +116,13 @@ struct core_mmu_phys_mem {
 		__used __section("phys_mem_map_section") = \
 		{ #addr, (type), (addr), (size) }
 
+#define __register_sdp_mem2(pa, sz, id) \
+	static const struct core_mmu_phys_mem __phys_sdp_mem_ ## id \
+		__used __section("phys_sdp_mem_section") = \
+		{ .type = MEM_AREA_SDP_MEM, .addr = (pa), .size = (sz), }
+
+#define __register_sdp_mem1(pa, sz, id)	__register_sdp_mem2(pa, sz, id)
+#define register_sdp_mem(pa, sz)	__register_sdp_mem1(pa, sz, __COUNTER__)
 
 /* Default NSec shared memory allocated from NSec world */
 extern unsigned long default_nsec_shm_paddr;