diff --git a/include/lib/aarch32/arch.h b/include/lib/aarch32/arch.h
index 5fbb83a..e2c5f24 100644
--- a/include/lib/aarch32/arch.h
+++ b/include/lib/aarch32/arch.h
@@ -44,6 +44,7 @@
 		(((mpidr) >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK)
 #define MPIDR_AFFLVL2_VAL(mpidr) \
 		(((mpidr) >> MPIDR_AFF2_SHIFT) & MPIDR_AFFLVL_MASK)
+#define MPIDR_AFFLVL3_VAL(mpidr)	0
 
 /*
  * The MPIDR_MAX_AFFLVL count starts from 0. Take care to
diff --git a/include/lib/aarch32/arch_helpers.h b/include/lib/aarch32/arch_helpers.h
index 1f4f216..c8caea2 100644
--- a/include/lib/aarch32/arch_helpers.h
+++ b/include/lib/aarch32/arch_helpers.h
@@ -266,6 +266,7 @@
 DEFINE_COPROCR_RW_FUNCS(icc_iar1_el1, ICC_IAR1)
 DEFINE_COPROCR_RW_FUNCS(icc_eoir0_el1, ICC_EOIR0)
 DEFINE_COPROCR_RW_FUNCS(icc_eoir1_el1, ICC_EOIR1)
+DEFINE_COPROCR_RW_FUNCS_64(icc_sgi0r_el1, ICC_SGI0R_EL1_64)
 
 DEFINE_COPROCR_RW_FUNCS(hdcr, HDCR)
 DEFINE_COPROCR_RW_FUNCS(cnthp_ctl, CNTHP_CTL)
@@ -325,4 +326,7 @@
 
 #define read_ctr_el0()		read_ctr()
 
+#define write_icc_sgi0r_el1(_v) \
+		write64_icc_sgi0r_el1(_v)
+
 #endif /* __ARCH_HELPERS_H__ */
diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h
index 3fb6846..bbe1e4f 100644
--- a/include/lib/aarch64/arch.h
+++ b/include/lib/aarch64/arch.h
@@ -77,6 +77,7 @@
 #define ICC_IAR1_EL1    S3_0_c12_c12_0
 #define ICC_EOIR0_EL1   S3_0_c12_c8_1
 #define ICC_EOIR1_EL1   S3_0_c12_c12_1
+#define ICC_SGI0R_EL1	S3_0_c12_c11_7
 
 /*******************************************************************************
  * Generic timer memory mapped registers & offsets
diff --git a/include/lib/aarch64/arch_helpers.h b/include/lib/aarch64/arch_helpers.h
index dbbbaeb..b880497 100644
--- a/include/lib/aarch64/arch_helpers.h
+++ b/include/lib/aarch64/arch_helpers.h
@@ -322,6 +322,7 @@
 DEFINE_RENAME_SYSREG_READ_FUNC(icc_iar1_el1, ICC_IAR1_EL1)
 DEFINE_RENAME_SYSREG_WRITE_FUNC(icc_eoir0_el1, ICC_EOIR0_EL1)
 DEFINE_RENAME_SYSREG_WRITE_FUNC(icc_eoir1_el1, ICC_EOIR1_EL1)
+DEFINE_RENAME_SYSREG_WRITE_FUNC(icc_sgi0r_el1, ICC_SGI0R_EL1)
 
 
 #define IS_IN_EL(x) \