#define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */
#define CPU_FEATURE_ASR17 (1 << 15)
#define CPU_FEATURE_CACHE_CTRL (1 << 16)
+#define CPU_FEATURE_POWERDOWN (1 << 17)
#ifndef TARGET_SPARC64
#define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \