Integrate shared block storage into PS and ITS SP deployments
To allow a partitioned block storage device to be used for NV storage
of objects held by the Protected Storage and Internal Trusted
Storage services, backend storage is now delegated to the block_storage
service provider located in a separate SP which owns the physical
storage device.
Signed-off-by: Julian Hall <julian.hall@arm.com>
Change-Id: Ic7e24b4adc04cabde71365d9cbc0b257cd00cc76
diff --git a/deployments/protected-storage/env/commonsp/ps_sp.c b/deployments/protected-storage/env/commonsp/ps_sp.c
new file mode 100644
index 0000000..d4db0af
--- /dev/null
+++ b/deployments/protected-storage/env/commonsp/ps_sp.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2020-2022, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "components/rpc/common/endpoint/rpc_interface.h"
+#include "components/rpc/ffarpc/endpoint/ffarpc_call_ep.h"
+#include "components/service/secure_storage/factory/storage_factory.h"
+#include "components/service/secure_storage/frontend/secure_storage_provider/secure_storage_provider.h"
+#include "sp_api.h"
+#include "sp_discovery.h"
+#include "sp_messaging.h"
+#include "sp_rxtx.h"
+#include "trace.h"
+
+static uint8_t tx_buffer[4096] __aligned(4096);
+static uint8_t rx_buffer[4096] __aligned(4096);
+
+void sp_main(struct ffa_init_info *init_info)
+{
+ sp_result result = SP_RESULT_INTERNAL_ERROR;
+ struct rpc_interface *secure_storage_iface = NULL;
+ struct ffa_call_ep ffa_call_ep = { 0 };
+ struct sp_msg req_msg = { 0 };
+ struct sp_msg resp_msg = { 0 };
+ struct secure_storage_provider secure_storage_provider = { 0 };
+ struct storage_backend *storage_backend = NULL;
+ uint16_t own_id = 0;
+
+ /* Boot */
+ (void) init_info;
+
+ result = sp_rxtx_buffer_map(tx_buffer, rx_buffer, sizeof(rx_buffer));
+ if (result != SP_RESULT_OK) {
+ EMSG("Failed to map RXTX buffers: %d", result);
+ goto fatal_error;
+ }
+
+ result = sp_discovery_own_id_get(&own_id);
+ if (result != SP_RESULT_OK) {
+ EMSG("Failed to query own ID: %d", result);
+ goto fatal_error;
+ }
+
+ storage_backend = storage_factory_create(storage_factory_security_class_PROTECTED);
+ if (!storage_backend) {
+ EMSG("Failed to create storage backend");
+ goto fatal_error;
+ }
+
+ secure_storage_iface = secure_storage_provider_init(&secure_storage_provider,
+ storage_backend);
+ if (!secure_storage_iface) {
+ EMSG("Failed to init secure storage provider");
+ goto fatal_error;
+ }
+
+ ffa_call_ep_init(&ffa_call_ep, secure_storage_iface, own_id);
+
+ /* End of boot phase */
+ result = sp_msg_wait(&req_msg);
+ if (result != SP_RESULT_OK) {
+ EMSG("Failed to send message wait %d", result);
+ goto fatal_error;
+ }
+
+ while (1) {
+ ffa_call_ep_receive(&ffa_call_ep, &req_msg, &resp_msg);
+
+ result = sp_msg_send_direct_resp(&resp_msg, &req_msg);
+ if (result != SP_RESULT_OK) {
+ EMSG("Failed to send direct response %d", result);
+ result = sp_msg_wait(&req_msg);
+ if (result != SP_RESULT_OK) {
+ EMSG("Failed to send message wait %d", result);
+ goto fatal_error;
+ }
+ }
+ }
+
+fatal_error:
+ /* SP is not viable */
+ EMSG("ITS SP error");
+ while (1) {}
+}
+
+void sp_interrupt_handler(uint32_t interrupt_id)
+{
+ (void)interrupt_id;
+}