diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 0497af45cc..e5aa1e9c1b 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -918,6 +918,8 @@ static Property riscv_cpu_properties[] = {
     DEFINE_PROP_UINT64("resetvec", RISCVCPU, cfg.resetvec, DEFAULT_RSTVEC),
 
     DEFINE_PROP_BOOL("short-isa-string", RISCVCPU, cfg.short_isa_string, false),
+
+    DEFINE_PROP_BOOL("rvv_ta_all_1s", RISCVCPU, cfg.rvv_ta_all_1s, false),
     DEFINE_PROP_END_OF_LIST(),
 };