diff --git a/spm/common/sp_helpers.c b/spm/common/sp_helpers.c
index 5d76dc8..a6b6bc5 100644
--- a/spm/common/sp_helpers.c
+++ b/spm/common/sp_helpers.c
@@ -71,28 +71,3 @@
 		time2 = read_cntvct_el0();
 	}
 }
-
-/*******************************************************************************
- * Hypervisor Calls Wrappers
- ******************************************************************************/
-
-ffa_int_id_t spm_interrupt_get(void)
-{
-	hvc_args args = {
-		.fid = SPM_INTERRUPT_GET
-	};
-
-	hvc_ret_values ret = tftf_hvc(&args);
-
-	return ret.ret0;
-}
-
-void spm_debug_log(char c)
-{
-	hvc_args args = {
-		.fid = SPM_DEBUG_LOG,
-		.arg1 = c
-	};
-
-	(void)tftf_hvc(&args);
-}
diff --git a/spm/common/sp_helpers.h b/spm/common/sp_helpers.h
index ec92227..399200a 100644
--- a/spm/common/sp_helpers.h
+++ b/spm/common/sp_helpers.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2020, Arm Limited. All rights reserved.
+ * Copyright (c) 2018-2021, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -11,12 +11,6 @@
 #include <tftf_lib.h>
 #include <ffa_helpers.h>
 
-#define SPM_VM_ID_FIRST                 SP_ID(1)
-
-/* Should match with IDs defined in SPM/Hafnium */
-#define SPM_INTERRUPT_GET               (0xFF04)
-#define SPM_DEBUG_LOG                   (0xBD000000)
-
 typedef struct {
 	u_register_t fid;
 	u_register_t arg1;
@@ -65,12 +59,4 @@
 /* Sleep for at least 'ms' milliseconds. */
 void sp_sleep(uint32_t ms);
 
-/*
- * Hypervisor Calls Wrappers
- */
-
-ffa_int_id_t spm_interrupt_get(void);
-
-void spm_debug_log(char c);
-
 #endif /* SP_HELPERS_H */
diff --git a/spm/common/spm_helpers.c b/spm/common/spm_helpers.c
new file mode 100644
index 0000000..823f9f6
--- /dev/null
+++ b/spm/common/spm_helpers.c
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <spm_helpers.h>
+
+/*******************************************************************************
+ * Hypervisor Calls Wrappers
+ ******************************************************************************/
+
+uint32_t spm_interrupt_get(void)
+{
+	hvc_args args = {
+		.fid = SPM_INTERRUPT_GET
+	};
+
+	hvc_ret_values ret = tftf_hvc(&args);
+
+	return ret.ret0;
+}
+
+void spm_debug_log(char c)
+{
+	hvc_args args = {
+		.fid = SPM_DEBUG_LOG,
+		.arg1 = c
+	};
+
+	(void)tftf_hvc(&args);
+}
diff --git a/spm/common/spm_helpers.h b/spm/common/spm_helpers.h
new file mode 100644
index 0000000..f241e42
--- /dev/null
+++ b/spm/common/spm_helpers.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SPMC_H
+#define SPMC_H
+
+#include <ffa_helpers.h>
+
+/* Should match with IDs defined in SPM/Hafnium */
+#define SPM_INTERRUPT_GET               (0xFF04)
+#define SPM_DEBUG_LOG                   (0xBD000000)
+
+/*
+ * Hypervisor Calls Wrappers
+ */
+
+uint32_t spm_interrupt_get(void);
+void spm_debug_log(char c);
+
+#endif /* SPMC_H */