diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode
index c48dca70b8..759172628f 100644
--- a/target/loongarch/insns.decode
+++ b/target/loongarch/insns.decode
@@ -1320,6 +1320,11 @@ xvsubi_hu        0111 01101000 11001 ..... ..... .....    @vv_ui5
 xvsubi_wu        0111 01101000 11010 ..... ..... .....    @vv_ui5
 xvsubi_du        0111 01101000 11011 ..... ..... .....    @vv_ui5
 
+xvneg_b          0111 01101001 11000 01100 ..... .....    @vv
+xvneg_h          0111 01101001 11000 01101 ..... .....    @vv
+xvneg_w          0111 01101001 11000 01110 ..... .....    @vv
+xvneg_d          0111 01101001 11000 01111 ..... .....    @vv
+
 xvreplgr2vr_b    0111 01101001 11110 00000 ..... .....    @vr
 xvreplgr2vr_h    0111 01101001 11110 00001 ..... .....    @vr
 xvreplgr2vr_w    0111 01101001 11110 00010 ..... .....    @vr
diff --git a/target/loongarch/disas.c b/target/loongarch/disas.c
index f59e3cebf0..4e26d49acc 100644
--- a/target/loongarch/disas.c
+++ b/target/loongarch/disas.c
@@ -1713,6 +1713,11 @@ static void output_vv_i_x(DisasContext *ctx, arg_vv_i *a, const char *mnemonic)
     output(ctx, mnemonic, "x%d, x%d, 0x%x", a->vd, a->vj, a->imm);
 }
 
+static void output_vv_x(DisasContext *ctx, arg_vv *a, const char *mnemonic)
+{
+    output(ctx, mnemonic, "x%d, x%d", a->vd, a->vj);
+}
+
 static void output_vr_x(DisasContext *ctx, arg_vr *a, const char *mnemonic)
 {
     output(ctx, mnemonic, "x%d, r%d", a->vd, a->rj);
@@ -1738,6 +1743,11 @@ INSN_LASX(xvsubi_hu,         vv_i)
 INSN_LASX(xvsubi_wu,         vv_i)
 INSN_LASX(xvsubi_du,         vv_i)
 
+INSN_LASX(xvneg_b,           vv)
+INSN_LASX(xvneg_h,           vv)
+INSN_LASX(xvneg_w,           vv)
+INSN_LASX(xvneg_d,           vv)
+
 INSN_LASX(xvreplgr2vr_b,     vr)
 INSN_LASX(xvreplgr2vr_h,     vr)
 INSN_LASX(xvreplgr2vr_w,     vr)
diff --git a/target/loongarch/insn_trans/trans_lasx.c.inc b/target/loongarch/insn_trans/trans_lasx.c.inc
index 0e8a711fde..29eefe6934 100644
--- a/target/loongarch/insn_trans/trans_lasx.c.inc
+++ b/target/loongarch/insn_trans/trans_lasx.c.inc
@@ -60,6 +60,11 @@ TRANS(xvsubi_hu, LASX, gvec_subi, 32, MO_16)
 TRANS(xvsubi_wu, LASX, gvec_subi, 32, MO_32)
 TRANS(xvsubi_du, LASX, gvec_subi, 32, MO_64)
 
+TRANS(xvneg_b, LASX, gvec_vv, 32, MO_8, tcg_gen_gvec_neg)
+TRANS(xvneg_h, LASX, gvec_vv, 32, MO_16, tcg_gen_gvec_neg)
+TRANS(xvneg_w, LASX, gvec_vv, 32, MO_32, tcg_gen_gvec_neg)
+TRANS(xvneg_d, LASX, gvec_vv, 32, MO_64, tcg_gen_gvec_neg)
+
 TRANS(xvreplgr2vr_b, LASX, gvec_dup, 32, MO_8)
 TRANS(xvreplgr2vr_h, LASX, gvec_dup, 32, MO_16)
 TRANS(xvreplgr2vr_w, LASX, gvec_dup, 32, MO_32)
diff --git a/target/loongarch/insn_trans/trans_lsx.c.inc b/target/loongarch/insn_trans/trans_lsx.c.inc
index 00f134a0b1..86a0d4d6b9 100644
--- a/target/loongarch/insn_trans/trans_lsx.c.inc
+++ b/target/loongarch/insn_trans/trans_lsx.c.inc
@@ -81,7 +81,7 @@ static bool gvec_vvv(DisasContext *ctx, arg_vvv *a, uint32_t oprsz, MemOp mop,
     return true;
 }
 
-static bool gvec_vv(DisasContext *ctx, arg_vv *a, MemOp mop,
+static bool gvec_vv(DisasContext *ctx, arg_vv *a, uint32_t oprsz, MemOp mop,
                     void (*func)(unsigned, uint32_t, uint32_t,
                                  uint32_t, uint32_t))
 {
@@ -92,7 +92,7 @@ static bool gvec_vv(DisasContext *ctx, arg_vv *a, MemOp mop,
     vd_ofs = vec_full_offset(a->vd);
     vj_ofs = vec_full_offset(a->vj);
 
-    func(mop, vd_ofs, vj_ofs, 16, ctx->vl/8);
+    func(mop, vd_ofs, vj_ofs, oprsz, ctx->vl / 8);
     return true;
 }
 
@@ -177,10 +177,10 @@ TRANS(vsubi_hu, LSX, gvec_subi, 16, MO_16)
 TRANS(vsubi_wu, LSX, gvec_subi, 16, MO_32)
 TRANS(vsubi_du, LSX, gvec_subi, 16, MO_64)
 
-TRANS(vneg_b, LSX, gvec_vv, MO_8, tcg_gen_gvec_neg)
-TRANS(vneg_h, LSX, gvec_vv, MO_16, tcg_gen_gvec_neg)
-TRANS(vneg_w, LSX, gvec_vv, MO_32, tcg_gen_gvec_neg)
-TRANS(vneg_d, LSX, gvec_vv, MO_64, tcg_gen_gvec_neg)
+TRANS(vneg_b, LSX, gvec_vv, 16, MO_8, tcg_gen_gvec_neg)
+TRANS(vneg_h, LSX, gvec_vv, 16, MO_16, tcg_gen_gvec_neg)
+TRANS(vneg_w, LSX, gvec_vv, 16, MO_32, tcg_gen_gvec_neg)
+TRANS(vneg_d, LSX, gvec_vv, 16, MO_64, tcg_gen_gvec_neg)
 
 TRANS(vsadd_b, LSX, gvec_vvv, 16, MO_8, tcg_gen_gvec_ssadd)
 TRANS(vsadd_h, LSX, gvec_vvv, 16, MO_16, tcg_gen_gvec_ssadd)
