diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index fef8651626..531124c541 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1462,7 +1462,7 @@ static inline int cpu_mmu_index (CPUPPCState *env)
 #define SPR_PERF2             (0x302)
 #define SPR_RCPU_MI_RBA2      (0x302)
 #define SPR_MPC_MI_AP         (0x302)
-#define SPR_MMCRA             (0x302)
+#define SPR_POWER_UMMCRA      (0x302)
 #define SPR_PERF3             (0x303)
 #define SPR_RCPU_MI_RBA3      (0x303)
 #define SPR_MPC_MI_EPN        (0x303)
@@ -1505,6 +1505,7 @@ static inline int cpu_mmu_index (CPUPPCState *env)
 #define SPR_UPERF0            (0x310)
 #define SPR_UPERF1            (0x311)
 #define SPR_UPERF2            (0x312)
+#define SPR_POWER_MMCRA       (0X312)
 #define SPR_UPERF3            (0x313)
 #define SPR_POWER_PMC1        (0X313)
 #define SPR_UPERF4            (0x314)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index def40742f3..11db6e77a1 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7712,7 +7712,7 @@ static void init_proc_POWER7 (CPUPPCState *env)
                      SPR_NOACCESS, SPR_NOACCESS,
                      &spr_read_generic, &spr_write_generic,
                      KVM_REG_PPC_DSCR, 0x00000000);
-    spr_register_kvm(env, SPR_MMCRA, "SPR_MMCRA",
+    spr_register_kvm(env, SPR_POWER_MMCRA, "SPR_MMCRA",
                      SPR_NOACCESS, SPR_NOACCESS,
                      &spr_read_generic, &spr_write_generic,
                      KVM_REG_PPC_MMCRA, 0x00000000);