diff --git a/include/runtime_svc.h b/include/runtime_svc.h
index 3ccbe88..61c2d27 100644
--- a/include/runtime_svc.h
+++ b/include/runtime_svc.h
@@ -31,6 +31,7 @@
 #ifndef __RUNTIME_SVC_H__
 #define __RUNTIME_SVC_H__
 #include <psci.h>
+#include <bl_common.h>
 
 /*******************************************************************************
  * Bit definitions inside the function id as per the SMC calling convention
@@ -72,6 +73,45 @@
 #define FIQ_AARCH32			0xe
 #define SERROR_AARCH32			0xf
 
+/*******************************************************************************
+ * Constants that allow assembler code to access members of the 'gp_regs'
+ * structure at their correct offsets.
+ ******************************************************************************/
+#define SIZEOF_GPREGS		0x110
+#define GPREGS_X0_OFF		0x0
+#define GPREGS_X1_OFF		0x8
+#define GPREGS_X2_OFF		0x10
+#define GPREGS_X3_OFF		0x18
+#define GPREGS_X4_OFF		0x20
+#define GPREGS_X5_OFF		0x28
+#define GPREGS_X6_OFF		0x30
+#define GPREGS_X7_OFF		0x38
+#define GPREGS_X8_OFF		0x40
+#define GPREGS_X9_OFF		0x48
+#define GPREGS_X10_OFF		0x50
+#define GPREGS_X11_OFF		0x58
+#define GPREGS_X12_OFF		0x60
+#define GPREGS_X13_OFF		0x68
+#define GPREGS_X14_OFF		0x70
+#define GPREGS_X15_OFF		0x78
+#define GPREGS_X16_OFF		0x80
+#define GPREGS_X17_OFF		0x88
+#define GPREGS_X18_OFF		0x90
+#define GPREGS_X19_OFF		0x98
+#define GPREGS_X20_OFF		0xA0
+#define GPREGS_X21_OFF		0xA8
+#define GPREGS_X22_OFF		0xB0
+#define GPREGS_X23_OFF		0xB8
+#define GPREGS_X24_OFF		0xC0
+#define GPREGS_X25_OFF		0xC8
+#define GPREGS_X26_OFF		0xD0
+#define GPREGS_X27_OFF		0xD8
+#define GPREGS_X28_OFF		0xE0
+#define GPREGS_SP_EL0_OFF	0xE8
+#define GPREGS_SPSR_OFF		0xF0
+#define GPREGS_FP_OFF		0x100
+#define GPREGS_LR_OFF		0x108
+
 #ifndef __ASSEMBLY__
 
 typedef struct {
@@ -106,10 +146,24 @@
 	unsigned long x28;
 	unsigned long sp_el0;
 	unsigned long spsr;
-	unsigned long fp;
+	/*
+	 * Alignment constraint which allows save & restore of fp & lr on the
+	 * stack during exception handling
+	 */
+	unsigned long fp  __attribute__((__aligned__(16)));
 	unsigned long lr;
-} gp_regs;
+} __attribute__((__aligned__(16))) gp_regs;
 
+/*******************************************************************************
+ * Compile time assertions to ensure that:
+ * 1)  the assembler code's view of the size of the 'gp_regs' data structure is
+ *     the same as the actual size of this data structure.
+ * 2)  the assembler code's view of the offset of the frame pointer member of
+ *     the 'gp_regs' structure is the same as the actual offset of this member.
+ ******************************************************************************/
+CASSERT((sizeof(gp_regs) == SIZEOF_GPREGS), assert_sizeof_gpregs_mismatch);
+CASSERT(GPREGS_FP_OFF == __builtin_offsetof(gp_regs, fp), \
+	assert_gpregs_fp_offset_mismatch);
 
 /*******************************************************************************
  * Function & variable prototypes