Add event log parameter handling in SP
A generic publish/subscribe mechanism is implemented to allow
boot information such as the TPM event log to be passed to
specific SPs, based on subscriptions specified in the SP
manifest. This change implements the in-SP handling
for the initialization parameters. The env_test has
been extended to include tests that check that the
event log is being passed and stored in the config store.
Signed-off-by: Julian Hall <julian.hall@arm.com>
Change-Id: I89211ebffd9e2d1768eaf5736e6b28dceafb0a02
diff --git a/components/config/interface/config_store.h b/components/config/interface/config_store.h
new file mode 100644
index 0000000..63f9282
--- /dev/null
+++ b/components/config/interface/config_store.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CONFIG_STORE_H
+#define CONFIG_STORE_H
+
+#include <stdbool.h>
+#include <stddef.h>
+
+/**
+ * Provides a common interface for retrieving configuration
+ * objects. Configuration objects are used at run-time
+ * to configure TS deployments such as a service provider
+ * running within a secure partition.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief A classifier for configuration objects
+ *
+ * Used as a label to identifier the general class of a configuartion object.
+ */
+enum config_classifier
+{
+ /* A classifier for a device region that describes a region of IO mapped memory */
+ CONFIG_CLASSIFIER_DEVICE_REGION,
+
+ /* A classifier for a memory region that describes a region of memory */
+ CONFIG_CLASSIFIER_MEMORY_REGION,
+
+ /* A classifier for an opaque configuration blob */
+ CONFIG_CLASSIFIER_BLOB
+};
+
+
+/**
+ * \brief Query for a particular configuration object
+ *
+ * \param[in] classifier The class of object
+ * \param[in] name The name of the object
+ * \param[in] instance The instance number
+ * \param[out] data Pointer to client provided buffer for the object
+ * \param[in] data_buf_size Size of the client provided buffer
+ *
+ * \return True if successful
+ */
+bool config_store_query(enum config_classifier classifier,
+ const char *name,
+ unsigned int instance,
+ void *data,
+ size_t data_buf_size);
+
+/**
+ * \brief Add an object to the config store
+ *
+ * \param[in] classifier The class of object
+ * \param[in] name The name of the object
+ * \param[in] instance The instance number
+ * \param[in] data The object data to add
+ * \param[in] data_len The size of the object
+ *
+ * \return True if successful
+ */
+bool config_store_add(enum config_classifier classifier,
+ const char *name,
+ unsigned int instance,
+ const void *data,
+ size_t data_len);
+
+/**
+ * \brief Returns a count of the number of objects of a particular class
+ *
+ * \param[in] classifier The class of object
+ *
+ * \return Count of objects held
+ */
+unsigned int config_store_count(enum config_classifier classifier);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CONFIG_STORE_H */