diff --git a/include/services/spci_svc.h b/include/services/spci_svc.h
new file mode 100644
index 0000000..49ba408
--- /dev/null
+++ b/include/services/spci_svc.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2019, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SPCI_SVC_H
+#define SPCI_SVC_H
+
+#include <lib/smccc.h>
+#include <lib/utils_def.h>
+#include <tools_share/uuid.h>
+
+/* SPCI error codes. */
+#define SPCI_ERROR_NOT_SUPPORTED	-1
+#define SPCI_ERROR_INVALID_PARAMETER	-2
+#define SPCI_ERROR_NO_MEMORY		-3
+#define SPCI_ERROR_BUSY			-4
+#define SPCI_ERROR_INTERRUPTED		-5
+#define SPCI_ERROR_DENIED		-6
+#define SPCI_ERROR_RETRY		-7
+
+/* The macros below are used to identify SPCI calls from the SMC function ID */
+#define SPCI_FNUM_MIN_VALUE	U(0x60)
+#define SPCI_FNUM_MAX_VALUE	U(0x7f)
+#define is_spci_fid(fid) __extension__ ({		\
+	__typeof__(fid) _fid = (fid);			\
+	((GET_SMC_NUM(_fid) >= SPCI_FNUM_MIN_VALUE) &&	\
+	 (GET_SMC_NUM(_fid) <= SPCI_FNUM_MAX_VALUE)); })
+
+/* SPCI_VERSION helpers */
+#define SPCI_VERSION_MAJOR		U(0)
+#define SPCI_VERSION_MAJOR_SHIFT	16
+#define SPCI_VERSION_MAJOR_MASK		U(0x7FFF)
+#define SPCI_VERSION_MINOR		U(9)
+#define SPCI_VERSION_MINOR_SHIFT	0
+#define SPCI_VERSION_MINOR_MASK		U(0xFFFF)
+
+#define MAKE_SPCI_VERSION(major, minor) \
+	((((major) & SPCI_VERSION_MAJOR_MASK) <<  SPCI_VERSION_MAJOR_SHIFT) | \
+	 (((minor) & SPCI_VERSION_MINOR_MASK) << SPCI_VERSION_MINOR_SHIFT))
+#define SPCI_VERSION_COMPILED		MAKE_SPCI_VERSION(SPCI_VERSION_MAJOR, \
+							  SPCI_VERSION_MINOR)
+
+/* SPCI_MSG_SEND helpers */
+#define SPCI_MSG_SEND_ATTRS_BLK_SHIFT	U(0)
+#define SPCI_MSG_SEND_ATTRS_BLK_MASK	U(0x1)
+#define SPCI_MSG_SEND_ATTRS_BLK		U(0)
+#define SPCI_MSG_SEND_ATTRS_BLK_NOT	U(1)
+#define SPCI_MSG_SEND_ATTRS(blk)		\
+	(((blk) & SPCI_MSG_SEND_ATTRS_BLK_MASK) \
+	<< SPCI_MSG_SEND_ATTRS_BLK_SHIFT)
+
+/* Get SPCI fastcall std FID from function number */
+#define SPCI_FID(smc_cc, func_num)			\
+		((SMC_TYPE_FAST << FUNCID_TYPE_SHIFT) |	\
+		 ((smc_cc) << FUNCID_CC_SHIFT) |	\
+		 (OEN_STD_START << FUNCID_OEN_SHIFT) |	\
+		 ((func_num) << FUNCID_NUM_SHIFT))
+
+/* SPCI function numbers */
+#define SPCI_FNUM_ERROR			U(0x60)
+#define SPCI_FNUM_SUCCESS		U(0x61)
+#define SPCI_FNUM_INTERRUPT		U(0x62)
+#define SPCI_FNUM_VERSION		U(0x63)
+#define SPCI_FNUM_FEATURES		U(0x64)
+#define SPCI_FNUM_RX_RELEASE		U(0x65)
+#define SPCI_FNUM_RXTX_MAP		U(0x66)
+#define SPCI_FNUM_RXTX_UNMAP		U(0x67)
+#define SPCI_FNUM_PARTITION_INFO_GET	U(0x68)
+#define SPCI_FNUM_ID_GET		U(0x69)
+#define SPCI_FNUM_MSG_POLL		U(0x6A)
+#define SPCI_FNUM_MSG_WAIT		U(0x6B)
+#define SPCI_FNUM_MSG_YIELD		U(0x6C)
+#define SPCI_FNUM_MSG_RUN		U(0x6D)
+#define SPCI_FNUM_MSG_SEND		U(0x6E)
+#define SPCI_FNUM_MSG_SEND_DIRECT_REQ	U(0x6F)
+#define SPCI_FNUM_MSG_SEND_DIRECT_RESP	U(0x70)
+#define SPCI_FNUM_MEM_DONATE		U(0x71)
+#define SPCI_FNUM_MEM_LEND		U(0x72)
+#define SPCI_FNUM_MEM_SHARE		U(0x73)
+#define SPCI_FNUM_MEM_RETRIEVE_REQ	U(0x74)
+#define SPCI_FNUM_MEM_RETRIEVE_RESP	U(0x75)
+#define SPCI_FNUM_MEM_RELINQUISH	U(0x76)
+#define SPCI_FNUM_MEM_RECLAIM		U(0x77)
+
+/* SPCI SMC32 FIDs */
+#define SPCI_ERROR		SPCI_FID(SMC_32, SPCI_FNUM_ERROR)
+#define SPCI_SUCCESS_SMC32	SPCI_FID(SMC_32, SPCI_FNUM_SUCCESS)
+#define SPCI_INTERRUPT		SPCI_FID(SMC_32, SPCI_FNUM_INTERRUPT)
+#define SPCI_VERSION		SPCI_FID(SMC_32, SPCI_FNUM_VERSION)
+#define SPCI_FEATURES		SPCI_FID(SMC_32, SPCI_FNUM_FEATURES)
+#define SPCI_RX_RELEASE		SPCI_FID(SMC_32, SPCI_FNUM_RX_RELEASE)
+#define SPCI_RXTX_MAP_SMC32	SPCI_FID(SMC_32, SPCI_FNUM_RXTX_MAP)
+#define SPCI_RXTX_UNMAP		SPCI_FID(SMC_32, SPCI_FNUM_RXTX_UNMAP)
+#define SPCI_PARTITION_INFO_GET	SPCI_FID(SMC_32, SPCI_FNUM_PARTITION_INFO_GET)
+#define SPCI_ID_GET		SPCI_FID(SMC_32, SPCI_FNUM_ID_GET)
+#define SPCI_MSG_POLL		SPCI_FID(SMC_32, SPCI_FNUM_MSG_POLL)
+#define SPCI_MSG_WAIT		SPCI_FID(SMC_32, SPCI_FNUM_MSG_WAIT)
+#define SPCI_MSG_YIELD		SPCI_FID(SMC_32, SPCI_FNUM_MSG_YIELD)
+#define SPCI_MSG_RUN		SPCI_FID(SMC_32, SPCI_FNUM_MSG_RUN)
+#define SPCI_MSG_SEND		SPCI_FID(SMC_32, SPCI_FNUM_MSG_SEND)
+#define SPCI_MSG_SEND_DIRECT_REQ_SMC32 \
+	SPCI_FID(SMC_32, SPCI_FNUM_MSG_SEND_DIRECT_REQ)
+#define SPCI_MSG_SEND_DIRECT_RESP_SMC32	\
+	SPCI_FID(SMC_32, SPCI_FNUM_MSG_SEND_DIRECT_RESP)
+#define SPCI_MEM_DONATE_SMC32	SPCI_FID(SMC_32, SPCI_FNUM_MEM_DONATE)
+#define SPCI_MEM_LEND_SMC32	SPCI_FID(SMC_32, SPCI_FNUM_MEM_LEND)
+#define SPCI_MEM_SHARE_SMC32	SPCI_FID(SMC_32, SPCI_FNUM_MEM_SHARE)
+#define SPCI_MEM_RETRIEVE_REQ_SMC32 \
+	SPCI_FID(SMC_32, SPCI_FNUM_MEM_RETRIEVE_REQ)
+#define SPCI_MEM_RETRIEVE_RESP	SPCI_FID(SMC_32, SPCI_FNUM_MEM_RETRIEVE_RESP)
+#define SPCI_MEM_RELINQUISH	SPCI_FID(SMC_32, SPCI_FNUM_MEM_RELINQUISH)
+#define SPCI_MEM_RECLAIM	SPCI_FID(SMC_32, SPCI_FNUM_MEM_RECLAIM)
+
+/* SPCI SMC64 FIDs */
+#define SPCI_SUCCESS_SMC64	SPCI_FID(SMC_64, SPCI_FNUM_SUCCESS)
+#define SPCI_RXTX_MAP_SMC64	SPCI_FID(SMC_64, SPCI_FNUM_RXTX_MAP)
+#define SPCI_MSG_SEND_DIRECT_REQ_SMC64 \
+	SPCI_FID(SMC_64, SPCI_FNUM_MSG_SEND_DIRECT_REQ)
+#define SPCI_MSG_SEND_DIRECT_RESP_SMC64	\
+	SPCI_FID(SMC_64, SPCI_FNUM_MSG_SEND_DIRECT_RESP)
+#define SPCI_MEM_DONATE_SMC64	SPCI_FID(SMC_64, SPCI_FNUM_MEM_DONATE)
+#define SPCI_MEM_LEND_SMC64	SPCI_FID(SMC_64, SPCI_FNUM_MEM_LEND)
+#define SPCI_MEM_SHARE_SMC64	SPCI_FID(SMC_64, SPCI_FNUM_MEM_SHARE)
+#define SPCI_MEM_RETRIEVE_REQ_SMC64 \
+	SPCI_FID(SMC_64, SPCI_FNUM_MEM_RETRIEVE_REQ)
+
+/*
+ * Reserve a special value for traffic targeted to the Hypervisor or SPM.
+ */
+#define SPCI_TARGET_INFO_MBZ		U(0x0)
+
+/*
+ * Reserve a special value for MBZ parameters.
+ */
+#define SPCI_PARAM_MBZ			U(0x0)
+
+#endif /* SPCI_SVC_H */