commit deae45d03143b28bd21d182babffb785784bc760
author Mingyang Sun <mingyang.sun@arm.com> Mon Sep 06 15:31:07 2021 +0800
committer Ken Liu <Ken.Liu@arm.com> Wed Oct 13 13:11:00 2021 +0800
tree d2947ce3e16150734716fad2804bd7258fd3ec7d
parent 4f08f4d95a69f5e5eb2467e16eb598456d431935

SPM: Involve SPM backends

Compare to the existing IPC runtime model and the upcoming SFN
runtime model, they:
- Have different component runtime initialization methods:
  thread vs thread-less.
- Have different messaging mechanisms: scheduling vs function call.
- Have different system kick-off mechanisms: scheduling vs calling
  into partition initialization routines one by one.

Create backends for addressing these differentiate. And IPC backend
is the first instance. Also fine-tunes backend related items, move
them into backend sources, such as partition list, and change the
way for binding service signals with partitions.

Change-Id: I954af30d65514a13ac9f5f86e5e718cf1c9a697c
Signed-off-by: Ken Liu <ken.liu@arm.com>
Co-authored-by: Mingyang Sun <mingyang.sun@arm.com>

secure_fw/spm/ffm/psa_api.c

diff --git a/secure_fw/spm/ffm/psa_api.c b/secure_fw/spm/ffm/psa_api.c
index 6e35c57..b38f85c 100644
--- a/secure_fw/spm/ffm/psa_api.c
+++ b/secure_fw/spm/ffm/psa_api.c
@@ -17,6 +17,7 @@
 #include "load/interrupt_defs.h"
 #include "psa_api.h"
 #include "utilities.h"
+#include "ffm/backend.h"
 #include "ffm/spm_error_base.h"
 #include "tfm_rpc.h"
 #include "tfm_spm_hal.h"
@@ -27,7 +28,6 @@
 #define GET_STATELESS_SERVICE(index)    (stateless_services_ref_tbl[index])
 extern struct service_t *stateless_services_ref_tbl[];
 
-
 uint32_t tfm_spm_get_lifecycle_state(void)
 {
     /*
@@ -130,13 +130,8 @@
     tfm_spm_fill_msg(msg, service, handle, PSA_IPC_CONNECT,
                      client_id, NULL, 0, NULL, 0, NULL);
 
-    /*
-     * Send message and wake up the SP who is waiting on message queue,
-     * and scheduler triggered
-     */
-    tfm_spm_send_event(service, msg);
 
-    return PSA_SUCCESS;
+    return backend_instance.messaging(service, msg);
 }
 
 psa_status_t tfm_spm_client_psa_call(psa_handle_t handle,
@@ -323,13 +318,7 @@
     tfm_spm_fill_msg(msg, service, handle, type, client_id,
                      invecs, in_num, outvecs, out_num, outptr);
 
-    /*
-     * Send message and wake up the SP who is waiting on message queue,
-     * and scheduler triggered
-     */
-    tfm_spm_send_event(service, msg);
-
-    return PSA_SUCCESS;
+    return backend_instance.messaging(service, msg);
 }
 
 void tfm_spm_client_psa_close(psa_handle_t handle)
@@ -385,11 +374,7 @@
     tfm_spm_fill_msg(msg, service, handle, PSA_IPC_DISCONNECT, client_id,
                      NULL, 0, NULL, 0, NULL);
 
-    /*
-     * Send message and wake up the SP who is waiting on message queue,
-     * and scheduler triggered
-     */
-    tfm_spm_send_event(service, msg);
+    (void)backend_instance.messaging(service, msg);
 }
 
 /* PSA Partition API function body */