diff --git a/gas/NEWS b/gas/NEWS
index 2d745dfc31..3246e7e825 100644
--- a/gas/NEWS
+++ b/gas/NEWS
@@ -1,5 +1,7 @@
 -*- text -*-
 
+* Add support for Intel MSRLIST instructions.
+
 * Add support for Intel WRMSRNS instructions.
 
 * Add support for Intel RAO-INT instructions.
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index 7f508b2962..981fd9f73d 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -1100,6 +1100,7 @@ static const arch_entry cpu_arch[] =
   SUBARCH (cmpccxadd, CMPCCXADD, ANY_CMPCCXADD, false),
   SUBARCH (raoint, RAOINT, ANY_RAOINT, false),
   SUBARCH (wrmsrns, WRMSRNS, ANY_WRMSRNS, false),
+  SUBARCH (msrlist, MSRLIST, ANY_MSRLIST, false),
 };
 
 #undef SUBARCH
diff --git a/gas/doc/c-i386.texi b/gas/doc/c-i386.texi
index abfbccdfb0..1bf953ef73 100644
--- a/gas/doc/c-i386.texi
+++ b/gas/doc/c-i386.texi
@@ -219,6 +219,7 @@ accept various extension mnemonics.  For example,
 @code{cmpccxadd},
 @code{raoint},
 @code{wrmsrns},
+@code{msrlist},
 @code{noavx512f},
 @code{noavx512cd},
 @code{noavx512er},
@@ -245,6 +246,7 @@ accept various extension mnemonics.  For example,
 @code{nocmpccxadd},
 @code{noraoint},
 @code{nowrmsrns},
+@code{nomsrlist},
 @code{noenqcmd},
 @code{noserialize},
 @code{notsxldtrk},
@@ -1547,6 +1549,7 @@ supported on the CPU specified.  The choices for @var{cpu_type} are:
 @item @samp{.clwb} @tab @samp{.rdpid} @tab @samp{.ptwrite} @tab @samp{.ibt}
 @item @samp{.avx_ifma} @tab @samp{.avx_vnni_int8} @tab @samp{.avx_ne_convert}
 @item @samp{.cmpccxadd} @tab @samp{.raoint} @tab @samp{.wrmsrns}
+@item @samp{.msrlist}
 @item @samp{.wbnoinvd} @tab @samp{.pconfig} @tab @samp{.waitpkg} @tab @samp{.cldemote}
 @item @samp{.shstk} @tab @samp{.gfni} @tab @samp{.vaes} @tab @samp{.vpclmulqdq}
 @item @samp{.movdiri} @tab @samp{.movdir64b} @tab @samp{.enqcmd} @tab @samp{.tsxldtrk}
diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index c924075180..5da64b4076 100644
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -490,6 +490,7 @@ if [gas_32_check] then {
     run_dump_test "raoint-intel"
     run_dump_test "wrmsrns"
     run_dump_test "wrmsrns-intel"
+    run_list_test "msrlist-inval"
     run_list_test "sg"
     run_dump_test "clzero"
     run_dump_test "invlpgb"
@@ -1170,6 +1171,8 @@ if [gas_64_check] then {
     run_dump_test "x86-64-raoint-intel"
     run_dump_test "x86-64-wrmsrns"
     run_dump_test "x86-64-wrmsrns-intel"
+    run_dump_test "x86-64-msrlist"
+    run_dump_test "x86-64-msrlist-intel"
     run_dump_test "x86-64-clzero"
     run_dump_test "x86-64-mwaitx-bdver4"
     run_list_test "x86-64-mwaitx-reg"
diff --git a/gas/testsuite/gas/i386/msrlist-inval.l b/gas/testsuite/gas/i386/msrlist-inval.l
new file mode 100644
index 0000000000..456f41c38f
--- /dev/null
+++ b/gas/testsuite/gas/i386/msrlist-inval.l
@@ -0,0 +1,3 @@
+.* Assembler messages:
+.*:6: Error: `rdmsrlist' is only supported in 64-bit mode
+.*:7: Error: `wrmsrlist' is only supported in 64-bit mode
diff --git a/gas/testsuite/gas/i386/msrlist-inval.s b/gas/testsuite/gas/i386/msrlist-inval.s
new file mode 100644
index 0000000000..3c3258a375
--- /dev/null
+++ b/gas/testsuite/gas/i386/msrlist-inval.s
@@ -0,0 +1,7 @@
+# Check Illegal MSRLIST instructions
+
+	.allow_index_reg
+	.text
+_start:
+	rdmsrlist		 #MSRLIST
+	wrmsrlist		 #MSRLIST
diff --git a/gas/testsuite/gas/i386/x86-64-lockbad-1.l b/gas/testsuite/gas/i386/x86-64-lockbad-1.l
index 6313e986fd..6469991605 100644
--- a/gas/testsuite/gas/i386/x86-64-lockbad-1.l
+++ b/gas/testsuite/gas/i386/x86-64-lockbad-1.l
@@ -37,10 +37,10 @@
 .*:42: Error: .*
 .*:43: Error: .*
 .*:44: Error: .*
-.*:47: Error: .*
-.*:48: Error: .*
+.*:45: Error: .*
+.*:46: Error: .*
+.*:49: Error: .*
 .*:50: Error: .*
-.*:51: Error: .*
 .*:52: Error: .*
 .*:53: Error: .*
 .*:54: Error: .*
@@ -67,14 +67,18 @@
 .*:75: Error: .*
 .*:76: Error: .*
 .*:77: Error: .*
+.*:78: Error: .*
 .*:79: Error: .*
-.*:80: Error: .*
 .*:81: Error: .*
 .*:82: Error: .*
 .*:83: Error: .*
 .*:84: Error: .*
 .*:85: Error: .*
 .*:86: Error: .*
+.*:87: Error: .*
+.*:88: Error: .*
+.*:89: Error: .*
+.*:90: Error: .*
 GAS LISTING .*
 
 
@@ -122,48 +126,52 @@ GAS LISTING .*
 [ 	]*42[ 	]+lock sub \(%rbx\), %eax
 [ 	]*43[ 	]+lock xor \(%rbx\), %eax
 [ 	]*44[ 	]+lock wrmsrns
-[ 	]*45[ 	]+
-[ 	]*46[ 	]+\.intel_syntax noprefix
-[ 	]*47[ 	]+lock mov eax,ebx
-[ 	]*48[ 	]+lock mov eax,DWORD PTR \[rbx\]
-[ 	]*49[ 	]+
-[ 	]*50[ 	]+lock add eax,ebx
-[ 	]*51[ 	]+lock add ebx,0x64
-[ 	]*52[ 	]+lock adc eax,ebx
-[ 	]*53[ 	]+lock adc ebx,0x64
-[ 	]*54[ 	]+lock and eax,ebx
-[ 	]*55[ 	]+lock and ebx,0x64
-[ 	]*56[ 	]+lock btc ebx,eax
-[ 	]*57[ 	]+lock btc ebx,0x64
+[ 	]*45[ 	]+lock rdmsrlist
+[ 	]*46[ 	]+lock wrmsrlist
+[ 	]*47[ 	]+
+[ 	]*48[ 	]+\.intel_syntax noprefix
+[ 	]*49[ 	]+lock mov eax,ebx
+[ 	]*50[ 	]+lock mov eax,DWORD PTR \[rbx\]
+[ 	]*51[ 	]+
+[ 	]*52[ 	]+lock add eax,ebx
+[ 	]*53[ 	]+lock add ebx,0x64
+[ 	]*54[ 	]+lock adc eax,ebx
+[ 	]*55[ 	]+lock adc ebx,0x64
+[ 	]*56[ 	]+lock and eax,ebx
+[ 	]*57[ 	]+lock and ebx,0x64
 GAS LISTING .*
 
 
-[ 	]*58[ 	]+lock btr ebx,eax
-[ 	]*59[ 	]+lock btr ebx,0x64
-[ 	]*60[ 	]+lock bts ebx,eax
-[ 	]*61[ 	]+lock bts ebx,0x64
-[ 	]*62[ 	]+lock cmpxchg ebx,eax
-[ 	]*63[ 	]+lock dec ebx
-[ 	]*64[ 	]+lock inc ebx
-[ 	]*65[ 	]+lock neg ebx
-[ 	]*66[ 	]+lock not ebx
-[ 	]*67[ 	]+lock or eax,ebx
-[ 	]*68[ 	]+lock or ebx,0x64
-[ 	]*69[ 	]+lock sbb eax,ebx
-[ 	]*70[ 	]+lock sbb ebx,0x64
-[ 	]*71[ 	]+lock sub eax,ebx
-[ 	]*72[ 	]+lock sub ebx,0x64
-[ 	]*73[ 	]+lock xadd ebx,eax
-[ 	]*74[ 	]+lock xchg ebx,eax
-[ 	]*75[ 	]+lock xchg ebx,eax
-[ 	]*76[ 	]+lock xor eax,ebx
-[ 	]*77[ 	]+lock xor ebx,0x64
-[ 	]*78[ 	]+
-[ 	]*79[ 	]+lock add eax,DWORD PTR \[rbx\]
-[ 	]*80[ 	]+lock adc eax,DWORD PTR \[rbx\]
-[ 	]*81[ 	]+lock and eax,DWORD PTR \[rbx\]
-[ 	]*82[ 	]+lock or eax,DWORD PTR \[rbx\]
-[ 	]*83[ 	]+lock sbb eax,DWORD PTR \[rbx\]
-[ 	]*84[ 	]+lock sub eax,DWORD PTR \[rbx\]
-[ 	]*85[ 	]+lock xor eax,DWORD PTR \[rbx\]
-[ 	]*86[ 	]+lock wrmsrns
+[ 	]*58[ 	]+lock btc ebx,eax
+[ 	]*59[ 	]+lock btc ebx,0x64
+[ 	]*60[ 	]+lock btr ebx,eax
+[ 	]*61[ 	]+lock btr ebx,0x64
+[ 	]*62[ 	]+lock bts ebx,eax
+[ 	]*63[ 	]+lock bts ebx,0x64
+[ 	]*64[ 	]+lock cmpxchg ebx,eax
+[ 	]*65[ 	]+lock dec ebx
+[ 	]*66[ 	]+lock inc ebx
+[ 	]*67[ 	]+lock neg ebx
+[ 	]*68[ 	]+lock not ebx
+[ 	]*69[ 	]+lock or eax,ebx
+[ 	]*70[ 	]+lock or ebx,0x64
+[ 	]*71[ 	]+lock sbb eax,ebx
+[ 	]*72[ 	]+lock sbb ebx,0x64
+[ 	]*73[ 	]+lock sub eax,ebx
+[ 	]*74[ 	]+lock sub ebx,0x64
+[ 	]*75[ 	]+lock xadd ebx,eax
+[ 	]*76[ 	]+lock xchg ebx,eax
+[ 	]*77[ 	]+lock xchg ebx,eax
+[ 	]*78[ 	]+lock xor eax,ebx
+[ 	]*79[ 	]+lock xor ebx,0x64
+[ 	]*80[ 	]+
+[ 	]*81[ 	]+lock add eax,DWORD PTR \[rbx\]
+[ 	]*82[ 	]+lock adc eax,DWORD PTR \[rbx\]
+[ 	]*83[ 	]+lock and eax,DWORD PTR \[rbx\]
+[ 	]*84[ 	]+lock or eax,DWORD PTR \[rbx\]
+[ 	]*85[ 	]+lock sbb eax,DWORD PTR \[rbx\]
+[ 	]*86[ 	]+lock sub eax,DWORD PTR \[rbx\]
+[ 	]*87[ 	]+lock xor eax,DWORD PTR \[rbx\]
+[ 	]*88[ 	]+lock wrmsrns
+[ 	]*89[ 	]+lock rdmsrlist
+[ 	]*90[ 	]+lock wrmsrlist
diff --git a/gas/testsuite/gas/i386/x86-64-lockbad-1.s b/gas/testsuite/gas/i386/x86-64-lockbad-1.s
index 71e9284a1c..fcea969fb9 100644
--- a/gas/testsuite/gas/i386/x86-64-lockbad-1.s
+++ b/gas/testsuite/gas/i386/x86-64-lockbad-1.s
@@ -42,6 +42,8 @@ foo:
 	lock sub (%rbx), %eax
 	lock xor (%rbx), %eax
 	lock wrmsrns
+	lock rdmsrlist
+	lock wrmsrlist
 
 	.intel_syntax noprefix
 	lock mov eax,ebx
@@ -84,3 +86,5 @@ foo:
 	lock sub eax,DWORD PTR [rbx]
 	lock xor eax,DWORD PTR [rbx]
 	lock wrmsrns
+	lock rdmsrlist
+	lock wrmsrlist
diff --git a/gas/testsuite/gas/i386/x86-64-msrlist-intel.d b/gas/testsuite/gas/i386/x86-64-msrlist-intel.d
new file mode 100644
index 0000000000..97a2a60e43
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-msrlist-intel.d
@@ -0,0 +1,14 @@
+#as:
+#objdump: -dw -Mintel
+#name: x86_64 MSRLIST insns (Intel disassembly)
+#source: x86-64-msrlist.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+0+ <_start>:
+\s*[a-f0-9]+:\s*f2 0f 01 c6\s+rdmsrlist
+\s*[a-f0-9]+:\s*f3 0f 01 c6\s+wrmsrlist
+\s*[a-f0-9]+:\s*f2 0f 01 c6\s+rdmsrlist
+\s*[a-f0-9]+:\s*f3 0f 01 c6\s+wrmsrlist
diff --git a/gas/testsuite/gas/i386/x86-64-msrlist.d b/gas/testsuite/gas/i386/x86-64-msrlist.d
new file mode 100644
index 0000000000..64beed7aa3
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-msrlist.d
@@ -0,0 +1,14 @@
+#as:
+#objdump: -dw
+#name: x86_64 MSRLIST insns
+#source: x86-64-msrlist.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+0+ <_start>:
+\s*[a-f0-9]+:\s*f2 0f 01 c6\s+rdmsrlist
+\s*[a-f0-9]+:\s*f3 0f 01 c6\s+wrmsrlist
+\s*[a-f0-9]+:\s*f2 0f 01 c6\s+rdmsrlist
+\s*[a-f0-9]+:\s*f3 0f 01 c6\s+wrmsrlist
diff --git a/gas/testsuite/gas/i386/x86-64-msrlist.s b/gas/testsuite/gas/i386/x86-64-msrlist.s
new file mode 100644
index 0000000000..ad57451da9
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-msrlist.s
@@ -0,0 +1,11 @@
+# Check 64bit MSRLIST instructions
+
+	.allow_index_reg
+	.text
+_start:
+	rdmsrlist		 #MSRLIST
+	wrmsrlist		 #MSRLIST
+
+.intel_syntax noprefix
+	rdmsrlist		 #MSRLIST
+	wrmsrlist		 #MSRLIST
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index 8c88114202..0601bee877 100644
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -1281,6 +1281,8 @@ enum
   X86_64_E9,
   X86_64_EA,
   X86_64_0F01_REG_0,
+  X86_64_0F01_REG_0_MOD_3_RM_6_P_1,
+  X86_64_0F01_REG_0_MOD_3_RM_6_P_3,
   X86_64_0F01_REG_1,
   X86_64_0F01_REG_1_RM_5_PREFIX_2,
   X86_64_0F01_REG_1_RM_6_PREFIX_2,
@@ -2974,6 +2976,9 @@ static const struct dis386 prefix_table[][4] = {
   /* PREFIX_0F01_REG_0_MOD_3_RM_6 */
   {
     { "wrmsrns",        { Skip_MODRM }, 0 },
+    { X86_64_TABLE (X86_64_0F01_REG_0_MOD_3_RM_6_P_1) },
+    { Bad_Opcode },
+    { X86_64_TABLE (X86_64_0F01_REG_0_MOD_3_RM_6_P_3) },
   },
 
   /* PREFIX_0F01_REG_1_RM_4 */
@@ -4315,6 +4320,18 @@ static const struct dis386 x86_64_table[][2] = {
     { "sgdt", { M }, 0 },
   },
 
+  /* X86_64_0F01_REG_0_MOD_3_RM_6_P_1 */
+  {
+    { Bad_Opcode },
+    { "wrmsrlist",	{ Skip_MODRM }, 0 },
+  },
+
+  /* X86_64_0F01_REG_0_MOD_3_RM_6_P_3 */
+  {
+    { Bad_Opcode },
+    { "rdmsrlist",	{ Skip_MODRM }, 0 },
+  },
+
   /* X86_64_0F01_REG_1 */
   {
     { "sidt{Q|Q}", { M }, 0 },
diff --git a/opcodes/i386-gen.c b/opcodes/i386-gen.c
index 5714f731ad..eac229e54d 100644
--- a/opcodes/i386-gen.c
+++ b/opcodes/i386-gen.c
@@ -257,6 +257,8 @@ static initializer cpu_flag_init[] =
     "CpuRAOINT" },
   { "CPU_WRMSRNS_FLAGS",
     "CpuWRMSRNS" },
+  { "CPU_MSRLIST_FLAGS",
+    "CpuMSRLIST" },
   { "CPU_IAMCU_FLAGS",
     "Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|CpuIAMCU" },
   { "CPU_ADX_FLAGS",
@@ -463,6 +465,8 @@ static initializer cpu_flag_init[] =
     "CpuRAOINT" },
   { "CPU_ANY_WRMSRNS_FLAGS",
     "CpuWRMSRNS" },
+  { "CPU_ANY_MSRLIST_FLAGS",
+    "CpuMSRLIST" },
 };
 
 static initializer operand_type_init[] =
@@ -670,6 +674,7 @@ static bitfield cpu_flags[] =
   BITFIELD (CpuCMPCCXADD),
   BITFIELD (CpuRAOINT),
   BITFIELD (CpuWRMSRNS),
+  BITFIELD (CpuMSRLIST),
   BITFIELD (CpuMWAITX),
   BITFIELD (CpuCLZERO),
   BITFIELD (CpuOSPKE),
diff --git a/opcodes/i386-opc.h b/opcodes/i386-opc.h
index 90e0591ae2..75c23aaec6 100644
--- a/opcodes/i386-opc.h
+++ b/opcodes/i386-opc.h
@@ -221,6 +221,8 @@ enum
   CpuRAOINT,
   /* Intel WRMSRNS Instructions support required */
   CpuWRMSRNS,
+  /* Intel MSRLIST Instructions support required.  */
+  CpuMSRLIST,
   /* mwaitx instruction required */
   CpuMWAITX,
   /* Clzero instruction required */
@@ -406,6 +408,7 @@ typedef union i386_cpu_flags
       unsigned int cpucmpccxadd:1;
       unsigned int cpuraoint:1;
       unsigned int cpuwrmsrns:1;
+      unsigned int cpumsrlist:1;
       unsigned int cpumwaitx:1;
       unsigned int cpuclzero:1;
       unsigned int cpuospke:1;
diff --git a/opcodes/i386-opc.tbl b/opcodes/i386-opc.tbl
index 0b3aa8936e..0dd7106a1c 100644
--- a/opcodes/i386-opc.tbl
+++ b/opcodes/i386-opc.tbl
@@ -3332,3 +3332,10 @@ axor, 0xf30f38fc, None, CpuRAOINT, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_l
 wrmsrns, 0x0f01c6, None, CpuWRMSRNS, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, {}
 
 // WRMSRNS instructions end.
+
+// MSRLIST instructions.
+
+rdmsrlist, 0xf20f01c6, None, CpuMSRLIST|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, {}
+wrmsrlist, 0xf30f01c6, None, CpuMSRLIST|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, {}
+
+// MSRLIST instructions end.
