diff --git a/services/std_svc/spmd/spmd.mk b/services/std_svc/spmd/spmd.mk
index 6f451c8..cc0e392 100644
--- a/services/std_svc/spmd/spmd.mk
+++ b/services/std_svc/spmd/spmd.mk
@@ -15,7 +15,8 @@
 SPMD_SOURCES	+=	$(addprefix services/std_svc/spmd/,	\
 			${ARCH}/spmd_helpers.S			\
 			spmd_pm.c				\
-			spmd_main.c)
+			spmd_main.c				\
+			spmd_logical_sp.c)
 
 # Let the top-level Makefile know that we intend to include a BL32 image
 NEED_BL32		:=	yes
diff --git a/services/std_svc/spmd/spmd_logical_sp.c b/services/std_svc/spmd/spmd_logical_sp.c
new file mode 100644
index 0000000..f3089c6
--- /dev/null
+++ b/services/std_svc/spmd/spmd_logical_sp.c
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2023, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#include <common/debug.h>
+#include <services/el3_spmd_logical_sp.h>
+#include <services/ffa_svc.h>
+
+#if ENABLE_SPMD_LP
+static bool is_spmd_lp_inited;
+static bool is_spmc_inited;
+
+/*
+ * Helper function to obtain the array storing the EL3
+ * SPMD Logical Partition descriptors.
+ */
+static struct spmd_lp_desc *get_spmd_el3_lp_array(void)
+{
+	return (struct spmd_lp_desc *) SPMD_LP_DESCS_START;
+}
+
+/*******************************************************************************
+ * Validate any logical partition descriptors before we initialize.
+ * Initialization of said partitions will be taken care of during SPMD boot.
+ ******************************************************************************/
+static int el3_spmd_sp_desc_validate(struct spmd_lp_desc *lp_array)
+{
+	/* Check the array bounds are valid. */
+	assert(SPMD_LP_DESCS_END > SPMD_LP_DESCS_START);
+
+	/* If no SPMD logical partitions are implemented then simply bail out. */
+	if (SPMD_LP_DESCS_COUNT == 0U) {
+		return -1;
+	}
+
+	for (uint32_t index = 0U; index < SPMD_LP_DESCS_COUNT; index++) {
+		struct spmd_lp_desc *lp_desc = &lp_array[index];
+
+		/* Validate our logical partition descriptors. */
+		if (lp_desc == NULL) {
+			ERROR("Invalid SPMD Logical SP Descriptor\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * Ensure the ID follows the convention to indicate it resides
+		 * in the secure world.
+		 */
+		if (!ffa_is_secure_world_id(lp_desc->sp_id)) {
+			ERROR("Invalid SPMD Logical SP ID (0x%x)\n",
+			      lp_desc->sp_id);
+			return -EINVAL;
+		}
+
+		/* Ensure SPMD logical partition is in valid range. */
+		if (!is_spmd_lp_id(lp_desc->sp_id)) {
+			ERROR("Invalid SPMD Logical Partition ID (0x%x)\n",
+			      lp_desc->sp_id);
+			return -EINVAL;
+		}
+
+		/* Ensure the UUID is not the NULL UUID. */
+		if (lp_desc->uuid[0] == 0 && lp_desc->uuid[1] == 0 &&
+		    lp_desc->uuid[2] == 0 && lp_desc->uuid[3] == 0) {
+			ERROR("Invalid UUID for SPMD Logical SP (0x%x)\n",
+			      lp_desc->sp_id);
+			return -EINVAL;
+		}
+
+		/* Ensure init function callback is registered. */
+		if (lp_desc->init == NULL) {
+			ERROR("Missing init function for Logical SP(0x%x)\n",
+			      lp_desc->sp_id);
+			return -EINVAL;
+		}
+
+		/* Ensure that SPMD LP only supports sending direct requests. */
+		if (lp_desc->properties != FFA_PARTITION_DIRECT_REQ_SEND) {
+			ERROR("Invalid SPMD logical partition properties (0x%x)\n",
+			      lp_desc->properties);
+			return -EINVAL;
+		}
+
+		/* Ensure that all partition IDs are unique. */
+		for (uint32_t inner_idx = index + 1;
+		     inner_idx < SPMD_LP_DESCS_COUNT; inner_idx++) {
+			if (lp_desc->sp_id == lp_array[inner_idx].sp_id) {
+				ERROR("Duplicate SPMD logical SP ID Detected (0x%x)\n",
+				      lp_desc->sp_id);
+				return -EINVAL;
+			}
+		}
+	}
+	return 0;
+}
+#endif
+
+/*
+ * Initialize SPMD logical partitions. This function assumes that it is called
+ * only after the SPMC has successfully initialized.
+ */
+int32_t spmd_logical_sp_init(void)
+{
+#if ENABLE_SPMD_LP
+	int32_t rc = 0;
+	struct spmd_lp_desc *spmd_lp_descs;
+
+	if (is_spmd_lp_inited == true) {
+		return 0;
+	}
+
+	if (is_spmc_inited == false) {
+		return -1;
+	}
+
+	spmd_lp_descs = get_spmd_el3_lp_array();
+
+	/* Perform initial validation of the SPMD Logical Partitions. */
+	rc = el3_spmd_sp_desc_validate(spmd_lp_descs);
+	if (rc != 0) {
+		ERROR("Logical SPMD Partition validation failed!\n");
+		return rc;
+	}
+
+	VERBOSE("SPMD Logical Secure Partition init start.\n");
+	for (unsigned int i = 0U; i < SPMD_LP_DESCS_COUNT; i++) {
+		rc = spmd_lp_descs[i].init();
+		if (rc != 0) {
+			ERROR("SPMD Logical SP (0x%x) failed to initialize\n",
+			      spmd_lp_descs[i].sp_id);
+			return rc;
+		}
+		VERBOSE("SPMD Logical SP (0x%x) Initialized\n",
+			spmd_lp_descs[i].sp_id);
+	}
+
+	INFO("SPMD Logical Secure Partition init completed.\n");
+	if (rc == 0) {
+		is_spmd_lp_inited = true;
+	}
+	return rc;
+#else
+	return 0;
+#endif
+}
+
+void spmd_logical_sp_set_spmc_initialized(void)
+{
+#if ENABLE_SPMD_LP
+	is_spmc_inited = true;
+#endif
+}
+
+void spmd_logical_sp_set_spmc_failure(void)
+{
+#if ENABLE_SPMD_LP
+	is_spmc_inited = false;
+#endif
+}
diff --git a/services/std_svc/spmd/spmd_main.c b/services/std_svc/spmd/spmd_main.c
index 587e60f..9b06b55 100644
--- a/services/std_svc/spmd/spmd_main.c
+++ b/services/std_svc/spmd/spmd_main.c
@@ -27,6 +27,7 @@
 #include <plat/common/common_def.h>
 #include <plat/common/platform.h>
 #include <platform_def.h>
+#include <services/el3_spmd_logical_sp.h>
 #include <services/ffa_svc.h>
 #include <services/spmc_svc.h>
 #include <services/spmd_svc.h>
@@ -190,6 +191,12 @@
 
 	VERBOSE("SPM Core init end.\n");
 
+	spmd_logical_sp_set_spmc_initialized();
+	rc = spmd_logical_sp_init();
+	if (rc != 0) {
+		WARN("SPMD Logical partitions failed init.\n");
+	}
+
 	return 1;
 }