diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index a3c4fb112a3e7aa638978999af94c69b63681bc4..29c48600d950e7f8d45f47989425b5120826078a 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1393,6 +1393,7 @@ static inline int cpu_mmu_index (CPUPPCState *env, bool ifetch)
 #define SPR_PSPB              (0x09F)
 #define SPR_DAWR              (0x0B4)
 #define SPR_RPR               (0x0BA)
+#define SPR_CIABR             (0x0BB)
 #define SPR_DAWRX             (0x0BC)
 #define SPR_HFSCR             (0x0BE)
 #define SPR_VRSAVE            (0x100)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index bd62e3be028546a9da2c632e50e705cea45db89c..37c4fb530262be8b3520a2e0fa09f4b454c5ab59 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7589,6 +7589,11 @@ static void gen_spr_book3s_207_dbg(CPUPPCState *env)
                         SPR_NOACCESS, SPR_NOACCESS,
                         &spr_read_generic, &spr_write_generic,
                         KVM_REG_PPC_DAWRX, 0x00000000);
+    spr_register_kvm_hv(env, SPR_CIABR, "CIABR",
+                        SPR_NOACCESS, SPR_NOACCESS,
+                        SPR_NOACCESS, SPR_NOACCESS,
+                        &spr_read_generic, &spr_write_generic,
+                        KVM_REG_PPC_CIABR, 0x00000000);
 }
 
 static void gen_spr_970_dbg(CPUPPCState *env)