diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c
index 19391d94e30..c9952a51c3c 100644
--- a/bfd/elfxx-riscv.c
+++ b/bfd/elfxx-riscv.c
@@ -1205,6 +1205,7 @@ static struct riscv_supported_ext riscv_supported_std_z_ext[] =
   {"zve64x",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"zve64f",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"zve64d",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
+  {"zvkb",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"zvl32b",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"zvl64b",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"zvl128b",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
@@ -2355,6 +2356,8 @@ riscv_multi_subset_supports (riscv_parse_subset_t *rps,
 	      || riscv_subset_supports (rps, "zve64d")
 	      || riscv_subset_supports (rps, "zve64f")
 	      || riscv_subset_supports (rps, "zve32f"));
+    case INSN_CLASS_ZVKB:
+      return riscv_subset_supports (rps, "zvkb");
     case INSN_CLASS_SVINVAL:
       return riscv_subset_supports (rps, "svinval");
     case INSN_CLASS_H:
@@ -2513,6 +2516,8 @@ riscv_multi_subset_supports_ext (riscv_parse_subset_t *rps,
       return _("v' or `zve64x' or `zve32x");
     case INSN_CLASS_ZVEF:
       return _("v' or `zve64d' or `zve64f' or `zve32f");
+    case INSN_CLASS_ZVKB:
+      return _("zvkb");
     case INSN_CLASS_SVINVAL:
       return "svinval";
     case INSN_CLASS_H:
diff --git a/gas/config/tc-riscv.c b/gas/config/tc-riscv.c
index 3ec474c9295..487c0cc5be2 100644
--- a/gas/config/tc-riscv.c
+++ b/gas/config/tc-riscv.c
@@ -1324,6 +1324,7 @@ validate_riscv_insn (const struct riscv_opcode *opc, int length)
 	    case 'i':
 	    case 'j':
 	    case 'k': USE_BITS (OP_MASK_VIMM, OP_SH_VIMM); break;
+	    case 'l': used_bits |= ENCODE_RVV_VI_UIMM6(-1U); break;
 	    case 'm': USE_BITS (OP_MASK_VMASK, OP_SH_VMASK); break;
 	    case 'M': break; /* Macro operand, must be a mask register.  */
 	    case 'T': break; /* Macro operand, must be a vector register.  */
@@ -2985,6 +2986,18 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr,
 		  asarg = expr_parse_end;
 		  continue;
 
+		case 'l': /* 6-bit vector arith unsigned immediate */
+		  my_getExpression (imm_expr, asarg);
+		  check_absolute_expr (ip, imm_expr, FALSE);
+		  if (imm_expr->X_add_number < 0
+		      || imm_expr->X_add_number >= 64)
+		    as_bad (_("bad value for vector immediate field, "
+			      "value must be 0...63"));
+		  ip->insn_opcode |= ENCODE_RVV_VI_UIMM6 (imm_expr->X_add_number);
+		  imm_expr->X_op = O_absent;
+		  asarg = expr_parse_end;
+		  continue;
+
 		case 'm': /* optional vector mask */
 		  if (*asarg == '\0')
 		    {
diff --git a/gas/testsuite/gas/riscv/zvkb.d b/gas/testsuite/gas/riscv/zvkb.d
new file mode 100644
index 00000000000..63aacba951c
--- /dev/null
+++ b/gas/testsuite/gas/riscv/zvkb.d
@@ -0,0 +1,36 @@
+#as: -march=rv64gc_zvkb
+#objdump: -dr
+
+.*:[ 	]+file format .*
+
+
+Disassembly of section .text:
+0+000 <.text>:
+[ 	]+[0-9a-f]+:[ 	]+32862257[ 	]+vclmul.vv[ 	]+v4,v8,v12
+[ 	]+[0-9a-f]+:[ 	]+30862257[ 	]+vclmul.vv[ 	]+v4,v8,v12,v0.t
+[ 	]+[0-9a-f]+:[ 	]+3285e257[ 	]+vclmul.vx[ 	]+v4,v8,a1
+[ 	]+[0-9a-f]+:[ 	]+3085e257[ 	]+vclmul.vx[ 	]+v4,v8,a1,v0.t
+[ 	]+[0-9a-f]+:[ 	]+36862257[ 	]+vclmulh.vv[ 	]+v4,v8,v12
+[ 	]+[0-9a-f]+:[ 	]+34862257[ 	]+vclmulh.vv[ 	]+v4,v8,v12,v0.t
+[ 	]+[0-9a-f]+:[ 	]+3685e257[ 	]+vclmulh.vx[ 	]+v4,v8,a1
+[ 	]+[0-9a-f]+:[ 	]+3485e257[ 	]+vclmulh.vx[ 	]+v4,v8,a1,v0.t
+[ 	]+[0-9a-f]+:[ 	]+56860257[ 	]+vrol.vv[ 	]+v4,v8,v12
+[ 	]+[0-9a-f]+:[ 	]+54860257[ 	]+vrol.vv[ 	]+v4,v8,v12,v0.t
+[ 	]+[0-9a-f]+:[ 	]+5685c257[ 	]+vrol.vx[ 	]+v4,v8,a1
+[ 	]+[0-9a-f]+:[ 	]+5485c257[ 	]+vrol.vx[ 	]+v4,v8,a1,v0.t
+[ 	]+[0-9a-f]+:[ 	]+52860257[ 	]+vror.vv[ 	]+v4,v8,v12
+[ 	]+[0-9a-f]+:[ 	]+50860257[ 	]+vror.vv[ 	]+v4,v8,v12,v0.t
+[ 	]+[0-9a-f]+:[ 	]+5285c257[ 	]+vror.vx[ 	]+v4,v8,a1
+[ 	]+[0-9a-f]+:[ 	]+5085c257[ 	]+vror.vx[ 	]+v4,v8,a1,v0.t
+[ 	]+[0-9a-f]+:[ 	]+52803257[ 	]+vror.vi[ 	]+v4,v8,0
+[ 	]+[0-9a-f]+:[ 	]+548fb257[ 	]+vror.vi[ 	]+v4,v8,63,v0.t
+[ 	]+[0-9a-f]+:[ 	]+4a842257[ 	]+vbrev8.v[ 	]+v4,v8
+[ 	]+[0-9a-f]+:[ 	]+48842257[ 	]+vbrev8.v[ 	]+v4,v8,v0.t
+[ 	]+[0-9a-f]+:[ 	]+4a84a257[ 	]+vrev8.v[ 	]+v4,v8
+[ 	]+[0-9a-f]+:[ 	]+4884a257[ 	]+vrev8.v[ 	]+v4,v8,v0.t
+[ 	]+[0-9a-f]+:[ 	]+06860257[ 	]+vandn.vv[ 	]+v4,v8,v12
+[ 	]+[0-9a-f]+:[ 	]+04860257[ 	]+vandn.vv[ 	]+v4,v8,v12,v0.t
+[ 	]+[0-9a-f]+:[ 	]+0685c257[ 	]+vandn.vx[ 	]+v4,v8,a1
+[ 	]+[0-9a-f]+:[ 	]+0485c257[ 	]+vandn.vx[ 	]+v4,v8,a1,v0.t
+[ 	]+[0-9a-f]+:[ 	]+0687b257[ 	]+vandn.vi[ 	]+v4,v8,15
+[ 	]+[0-9a-f]+:[ 	]+04883257[ 	]+vandn.vi[ 	]+v4,v8,-16,v0.t
diff --git a/gas/testsuite/gas/riscv/zvkb.s b/gas/testsuite/gas/riscv/zvkb.s
new file mode 100644
index 00000000000..fd741505883
--- /dev/null
+++ b/gas/testsuite/gas/riscv/zvkb.s
@@ -0,0 +1,28 @@
+	vclmul.vv v4, v8, v12
+	vclmul.vv v4, v8, v12, v0.t
+	vclmul.vx v4, v8, a1
+	vclmul.vx v4, v8, a1, v0.t
+	vclmulh.vv v4, v8, v12
+	vclmulh.vv v4, v8, v12, v0.t
+	vclmulh.vx v4, v8, a1
+	vclmulh.vx v4, v8, a1, v0.t
+	vrol.vv v4, v8, v12
+	vrol.vv v4, v8, v12, v0.t
+	vrol.vx v4, v8, a1
+	vrol.vx v4, v8, a1, v0.t
+	vror.vv v4, v8, v12
+	vror.vv v4, v8, v12, v0.t
+	vror.vx v4, v8, a1
+	vror.vx v4, v8, a1, v0.t
+	vror.vi v4, v8, 0
+	vror.vi v4, v8, 63, v0.t
+	vbrev8.v v4, v8
+	vbrev8.v v4, v8, v0.t
+	vrev8.v v4, v8
+	vrev8.v v4, v8, v0.t
+	vandn.vv v4, v8, v12
+	vandn.vv v4, v8, v12, v0.t
+	vandn.vx v4, v8, a1
+	vandn.vx v4, v8, a1, v0.t
+	vandn.vi v4, v8, 15
+	vandn.vi v4, v8, -16, v0.t
diff --git a/include/opcode/riscv-opc.h b/include/opcode/riscv-opc.h
index 85d35c1efc9..bdcb3e442f8 100644
--- a/include/opcode/riscv-opc.h
+++ b/include/opcode/riscv-opc.h
@@ -2055,6 +2055,35 @@
 #define MASK_VDOTUVV  0xfc00707f
 #define MATCH_VFDOTVV  0xe4001057
 #define MASK_VFDOTVV  0xfc00707f
+/* Zvkb instructions.  */
+#define MATCH_VCLMULVV 0x30002057
+#define MASK_VCLMULVV 0xfc00707f
+#define MATCH_VCLMULVX 0x30006057
+#define MASK_VCLMULVX 0xfc00707f
+#define MATCH_VCLMULHVV 0x34002057
+#define MASK_VCLMULHVV 0xfc00707f
+#define MATCH_VCLMULHVX 0x34006057
+#define MASK_VCLMULHVX 0xfc00707f
+#define MATCH_VROLVV 0x54000057
+#define MASK_VROLVV 0xfc00707f
+#define MATCH_VROLVX 0x54004057
+#define MASK_VROLVX 0xfc00707f
+#define MATCH_VRORVV 0x50000057
+#define MASK_VRORVV 0xfc00707f
+#define MATCH_VRORVX 0x50004057
+#define MASK_VRORVX 0xfc00707f
+#define MATCH_VRORVI 0x50003057
+#define MASK_VRORVI 0xf800707f
+#define MATCH_VBREV8V 0x48042057
+#define MASK_VBREV8V 0xfc0ff07f
+#define MATCH_VREV8V 0x4804a057
+#define MASK_VREV8V 0xfc0ff07f
+#define MATCH_VANDNVV 0x04000057
+#define MASK_VANDNVV 0xfc00707f
+#define MATCH_VANDNVX 0x04004057
+#define MASK_VANDNVX 0xfc00707f
+#define MATCH_VANDNVI 0x04003057
+#define MASK_VANDNVI 0xfc00707f
 /* Svinval instruction.  */
 #define MATCH_SINVAL_VMA 0x16000073
 #define MASK_SINVAL_VMA 0xfe007fff
@@ -3118,6 +3147,21 @@ DECLARE_INSN(cbo_zero, MATCH_CBO_ZERO, MASK_CBO_ZERO);
 /* Zawrs instructions.  */
 DECLARE_INSN(wrs_nto, MATCH_WRS_NTO, MASK_WRS_NTO)
 DECLARE_INSN(wrs_sto, MATCH_WRS_STO, MASK_WRS_STO)
+/* Zvkb instructions.  */
+DECLARE_INSN(vclmulvv, MATCH_VCLMULVV, MASK_VCLMULVV)
+DECLARE_INSN(vclmulvx, MATCH_VCLMULVX, MASK_VCLMULVX)
+DECLARE_INSN(vclmulhvv, MATCH_VCLMULHVV, MASK_VCLMULHVV)
+DECLARE_INSN(vclmulhvx, MATCH_VCLMULHVX, MASK_VCLMULHVX)
+DECLARE_INSN(vrolvv, MATCH_VROLVV, MASK_VROLVV)
+DECLARE_INSN(vrolvx, MATCH_VROLVX, MASK_VROLVX)
+DECLARE_INSN(vrorvv, MATCH_VRORVV, MASK_VRORVV)
+DECLARE_INSN(vrorvx, MATCH_VRORVX, MASK_VRORVX)
+DECLARE_INSN(vrorvi, MATCH_VRORVI, MASK_VRORVI)
+DECLARE_INSN(vbrev8v, MATCH_VBREV8V, MASK_VBREV8V)
+DECLARE_INSN(vrev8v, MATCH_VREV8V, MASK_VREV8V)
+DECLARE_INSN(vandnvv, MATCH_VANDNVV, MASK_VANDNVV)
+DECLARE_INSN(vandnvx, MATCH_VANDNVX, MASK_VANDNVX)
+DECLARE_INSN(vandnvi, MATCH_VANDNVI, MASK_VANDNVI)
 /* Vendor-specific (T-Head) XTheadBa instructions.  */
 DECLARE_INSN(th_addsl, MATCH_TH_ADDSL, MASK_TH_ADDSL)
 /* Vendor-specific (T-Head) XTheadBb instructions.  */
diff --git a/include/opcode/riscv.h b/include/opcode/riscv.h
index b4ae55249bb..cc3950f56b8 100644
--- a/include/opcode/riscv.h
+++ b/include/opcode/riscv.h
@@ -100,6 +100,8 @@ static inline unsigned int riscv_insn_length (insn_t insn)
   (RV_X(x, 15, 5) | (-RV_X(x, 19, 1) << 5))
 #define EXTRACT_RVV_VI_UIMM(x) \
   (RV_X(x, 15, 5))
+#define EXTRACT_RVV_VI_UIMM6(x) \
+  (RV_X(x, 15, 5) | (RV_X(x, 26, 1) << 5))
 #define EXTRACT_RVV_OFFSET(x) \
   (RV_X(x, 29, 3))
 #define EXTRACT_RVV_VB_IMM(x) \
@@ -151,6 +153,8 @@ static inline unsigned int riscv_insn_length (insn_t insn)
   (RV_X(x, 0, 10) << 20)
 #define ENCODE_RVV_VC_IMM(x) \
   (RV_X(x, 0, 11) << 20)
+#define ENCODE_RVV_VI_UIMM6(x) \
+  (RV_X(x, 0, 5) << 15 | RV_X(x, 5, 1) << 26)
 
 #define VALID_ITYPE_IMM(x) (EXTRACT_ITYPE_IMM(ENCODE_ITYPE_IMM(x)) == (x))
 #define VALID_STYPE_IMM(x) (EXTRACT_STYPE_IMM(ENCODE_STYPE_IMM(x)) == (x))
@@ -405,6 +409,7 @@ enum riscv_insn_class
   INSN_CLASS_ZKND_OR_ZKNE,
   INSN_CLASS_V,
   INSN_CLASS_ZVEF,
+  INSN_CLASS_ZVKB,
   INSN_CLASS_SVINVAL,
   INSN_CLASS_ZICBOM,
   INSN_CLASS_ZICBOP,
diff --git a/opcodes/riscv-dis.c b/opcodes/riscv-dis.c
index 7c9b228e778..481e8ea906b 100644
--- a/opcodes/riscv-dis.c
+++ b/opcodes/riscv-dis.c
@@ -397,6 +397,10 @@ print_insn_args (const char *oparg, insn_t l, bfd_vma pc, disassemble_info *info
 	      print (info->stream, dis_style_immediate, "%d",
 		     (int)EXTRACT_RVV_OFFSET (l));
 	      break;
+	    case 'l':
+	      print (info->stream, dis_style_immediate, "%d",
+		     (int)EXTRACT_RVV_VI_UIMM6 (l));
+	      break;
 	    case 'm':
 	      if (!EXTRACT_OPERAND (VMASK, l))
 		{
diff --git a/opcodes/riscv-opc.c b/opcodes/riscv-opc.c
index 6b65296a3f2..0b76bff2617 100644
--- a/opcodes/riscv-opc.c
+++ b/opcodes/riscv-opc.c
@@ -1815,6 +1815,22 @@ const struct riscv_opcode riscv_opcodes[] =
 {"vmv4r.v",    0, INSN_CLASS_V, "Vd,Vt", MATCH_VMV4RV, MASK_VMV4RV, match_opcode, 0},
 {"vmv8r.v",    0, INSN_CLASS_V, "Vd,Vt", MATCH_VMV8RV, MASK_VMV8RV, match_opcode, 0},
 
+/* Zvkb instructions.  */
+{"vclmul.vv",  0, INSN_CLASS_ZVKB, "Vd,Vt,VsVm", MATCH_VCLMULVV, MASK_VCLMULVV, match_opcode, 0},
+{"vclmul.vx",  0, INSN_CLASS_ZVKB, "Vd,Vt,sVm", MATCH_VCLMULVX, MASK_VCLMULVX, match_opcode, 0},
+{"vclmulh.vv", 0, INSN_CLASS_ZVKB, "Vd,Vt,VsVm", MATCH_VCLMULHVV, MASK_VCLMULHVV, match_opcode, 0},
+{"vclmulh.vx", 0, INSN_CLASS_ZVKB, "Vd,Vt,sVm", MATCH_VCLMULHVX, MASK_VCLMULHVX, match_opcode, 0},
+{"vrol.vv",    0, INSN_CLASS_ZVKB, "Vd,Vt,VsVm", MATCH_VROLVV, MASK_VROLVV, match_opcode, 0},
+{"vrol.vx",    0, INSN_CLASS_ZVKB, "Vd,Vt,sVm", MATCH_VROLVX, MASK_VROLVX, match_opcode, 0},
+{"vror.vv",    0, INSN_CLASS_ZVKB, "Vd,Vt,VsVm", MATCH_VRORVV, MASK_VRORVV, match_opcode, 0},
+{"vror.vx",    0, INSN_CLASS_ZVKB, "Vd,Vt,sVm", MATCH_VRORVX, MASK_VRORVX, match_opcode, 0},
+{"vror.vi",    0, INSN_CLASS_ZVKB, "Vd,Vt,VlVm", MATCH_VRORVI, MASK_VRORVI, match_opcode, 0},
+{"vbrev8.v",   0, INSN_CLASS_ZVKB, "Vd,VtVm", MATCH_VBREV8V, MASK_VBREV8V, match_opcode, 0},
+{"vrev8.v",    0, INSN_CLASS_ZVKB, "Vd,VtVm", MATCH_VREV8V, MASK_VREV8V, match_opcode, 0},
+{"vandn.vv",   0, INSN_CLASS_ZVKB, "Vd,Vt,VsVm", MATCH_VANDNVV, MASK_VANDNVV, match_opcode, 0},
+{"vandn.vx",   0, INSN_CLASS_ZVKB, "Vd,Vt,sVm", MATCH_VANDNVX, MASK_VANDNVX, match_opcode, 0},
+{"vandn.vi",   0, INSN_CLASS_ZVKB, "Vd,Vt,ViVm", MATCH_VANDNVI, MASK_VANDNVI, match_opcode, 0},
+
 /* Supervisor instructions.  */
 {"csrr",       0, INSN_CLASS_ZICSR, "d,E",   MATCH_CSRRS, MASK_CSRRS|MASK_RS1, match_opcode, INSN_ALIAS },
 {"csrw",       0, INSN_CLASS_ZICSR, "E,s",   MATCH_CSRRW, MASK_CSRRW|MASK_RD, match_opcode, INSN_ALIAS },
