diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index dff966c..1c4dc4d 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -2487,6 +2487,9 @@
     if (cpuinfo & CPUINFO_LSX) {
         tcg_target_available_regs[TCG_TYPE_V64] = ALL_VECTOR_REGS;
         tcg_target_available_regs[TCG_TYPE_V128] = ALL_VECTOR_REGS;
+        if (cpuinfo & CPUINFO_LASX) {
+            tcg_target_available_regs[TCG_TYPE_V256] = ALL_VECTOR_REGS;
+        }
         tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_V24);
         tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_V25);
         tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_V26);
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index 990bad1..58bd7d2 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -173,7 +173,7 @@
 
 #define TCG_TARGET_HAS_v64              (cpuinfo & CPUINFO_LSX)
 #define TCG_TARGET_HAS_v128             (cpuinfo & CPUINFO_LSX)
-#define TCG_TARGET_HAS_v256             0
+#define TCG_TARGET_HAS_v256             (cpuinfo & CPUINFO_LASX)
 
 #define TCG_TARGET_HAS_not_vec          1
 #define TCG_TARGET_HAS_neg_vec          1