diff --git a/target/s390x/Makefile.objs b/target/s390x/Makefile.objs
index 46f6a8c..9d261ed 100644
--- a/target/s390x/Makefile.objs
+++ b/target/s390x/Makefile.objs
@@ -1,4 +1,4 @@
-obj-y += translate.o helper.o cpu.o interrupt.o
+obj-y += translate.o helper.o cpu.o interrupt.o crypto_helper.o
 obj-y += int_helper.o fpu_helper.o cc_helper.o mem_helper.o misc_helper.o
 obj-y += gdbstub.o cpu_models.o cpu_features.o
 obj-$(CONFIG_SOFTMMU) += machine.o ioinst.o arch_dump.o mmu_helper.o
diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c
index 92120f4..45bd920 100644
--- a/target/s390x/cpu_models.c
+++ b/target/s390x/cpu_models.c
@@ -792,6 +792,7 @@ static void add_qemu_cpu_model_features(S390FeatBitmap fbm)
         S390_FEAT_STFLE,
         S390_FEAT_EXTENDED_IMMEDIATE,
         S390_FEAT_EXTENDED_TRANSLATION_2,
+        S390_FEAT_MSA,
         S390_FEAT_EXTENDED_TRANSLATION_3,
         S390_FEAT_LONG_DISPLACEMENT,
         S390_FEAT_LONG_DISPLACEMENT_FAST,
@@ -808,6 +809,9 @@ static void add_qemu_cpu_model_features(S390FeatBitmap fbm)
         S390_FEAT_STFLE_49,
         S390_FEAT_LOCAL_TLB_CLEARING,
         S390_FEAT_STFLE_53,
+        S390_FEAT_MSA_EXT_5,
+        S390_FEAT_MSA_EXT_3,
+        S390_FEAT_MSA_EXT_4,
     };
     int i;
 
diff --git a/target/s390x/crypto_helper.c b/target/s390x/crypto_helper.c
new file mode 100644
index 0000000..125bd9b
--- /dev/null
+++ b/target/s390x/crypto_helper.c
@@ -0,0 +1,65 @@
+/*
+ *  s390x crypto helpers
+ *
+ *  Copyright (c) 2017 Red Hat Inc
+ *
+ *  Authors:
+ *   David Hildenbrand <david@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/main-loop.h"
+#include "cpu.h"
+#include "exec/helper-proto.h"
+#include "exec/exec-all.h"
+#include "exec/cpu_ldst.h"
+
+uint32_t HELPER(msa)(CPUS390XState *env, uint32_t r1, uint32_t r2, uint32_t r3,
+                     uint32_t type)
+{
+    const uintptr_t ra = GETPC();
+    const uint8_t mod = env->regs[0] & 0x80ULL;
+    const uint8_t fc = env->regs[0] & 0x7fULL;
+    CPUState *cs = CPU(s390_env_get_cpu(env));
+    uint8_t subfunc[16] = { 0 };
+    uint64_t param_addr;
+    int i;
+
+    switch (type) {
+    case S390_FEAT_TYPE_KMAC:
+    case S390_FEAT_TYPE_KIMD:
+    case S390_FEAT_TYPE_KLMD:
+    case S390_FEAT_TYPE_PCKMO:
+    case S390_FEAT_TYPE_PCC:
+        if (mod) {
+            cpu_restore_state(cs, ra);
+            program_interrupt(env, PGM_SPECIFICATION, 4);
+            return 0;
+        }
+        break;
+    }
+
+    s390_get_feat_block(type, subfunc);
+    if (fc >= 128 || !test_be_bit(fc, subfunc)) {
+        cpu_restore_state(cs, ra);
+        program_interrupt(env, PGM_SPECIFICATION, 4);
+        return 0;
+    }
+
+    switch (fc) {
+    case 0:
+        for (i = 0; i < 16; i++) {
+            param_addr = wrap_address(env, env->regs[1] + i);
+            cpu_stb_data_ra(env, param_addr, subfunc[i], ra);
+        }
+        break;
+    default:
+        /* we don't implement any other subfunction yet */
+        g_assert_not_reached();
+    }
+
+    return 0;
+}
diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index 4b02907..75ba04f 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -115,6 +115,7 @@ DEF_HELPER_4(cu21, i32, env, i32, i32, i32)
 DEF_HELPER_4(cu24, i32, env, i32, i32, i32)
 DEF_HELPER_4(cu41, i32, env, i32, i32, i32)
 DEF_HELPER_4(cu42, i32, env, i32, i32, i32)
+DEF_HELPER_5(msa, i32, env, i32, i32, i32, i32)
 
 #ifndef CONFIG_USER_ONLY
 DEF_HELPER_3(servc, i32, env, i64, i64)
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index 84233a4..d09f2ed 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -941,6 +941,19 @@
 /* UNPACK UNICODE */
     C(0xe200, UNPKU,   SS_a,  E2,  la1, a2, 0, 0, unpku, 0)
 
+/* MSA Instructions */
+    D(0xb91e, KMAC,    RRE,   MSA,  0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_KMAC)
+    D(0xb928, PCKMO,   RRE,   MSA3, 0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_PCKMO)
+    D(0xb92a, KMF,     RRE,   MSA4, 0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_KMF)
+    D(0xb92b, KMO,     RRE,   MSA4, 0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_KMO)
+    D(0xb92c, PCC,     RRE,   MSA4, 0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_PCC)
+    D(0xb92d, KMCTR,   RRF_b, MSA4, 0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_KMCTR)
+    D(0xb92e, KM,      RRE,   MSA,  0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_KM)
+    D(0xb92f, KMC,     RRE,   MSA,  0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_KMC)
+    D(0xb93c, PPNO,    RRE,   MSA5, 0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_PPNO)
+    D(0xb93e, KIMD,    RRE,   MSA,  0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_KIMD)
+    D(0xb93f, KLMD,    RRE,   MSA,  0, 0, 0, 0, msa, 0, S390_FEAT_TYPE_KLMD)
+
 #ifndef CONFIG_USER_ONLY
 /* COMPARE AND SWAP AND PURGE */
     D(0xb250, CSP,     RRE,   Z,   r1_32u, ra2, r1_P, 0, csp, 0, MO_TEUL)
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 7fc07a4..2d975b4 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -2480,6 +2480,58 @@ static ExitStatus op_iske(DisasContext *s, DisasOps *o)
 }
 #endif
 
+static ExitStatus op_msa(DisasContext *s, DisasOps *o)
+{
+    int r1 = have_field(s->fields, r1) ? get_field(s->fields, r1) : 0;
+    int r2 = have_field(s->fields, r2) ? get_field(s->fields, r2) : 0;
+    int r3 = have_field(s->fields, r3) ? get_field(s->fields, r3) : 0;
+    TCGv_i32 t_r1, t_r2, t_r3, type;
+
+    switch (s->insn->data) {
+    case S390_FEAT_TYPE_KMCTR:
+        if (r3 & 1 || !r3) {
+            gen_program_exception(s, PGM_SPECIFICATION);
+            return EXIT_NORETURN;
+        }
+        /* FALL THROUGH */
+    case S390_FEAT_TYPE_PPNO:
+    case S390_FEAT_TYPE_KMF:
+    case S390_FEAT_TYPE_KMC:
+    case S390_FEAT_TYPE_KMO:
+    case S390_FEAT_TYPE_KM:
+        if (r1 & 1 || !r1) {
+            gen_program_exception(s, PGM_SPECIFICATION);
+            return EXIT_NORETURN;
+        }
+        /* FALL THROUGH */
+    case S390_FEAT_TYPE_KMAC:
+    case S390_FEAT_TYPE_KIMD:
+    case S390_FEAT_TYPE_KLMD:
+        if (r2 & 1 || !r2) {
+            gen_program_exception(s, PGM_SPECIFICATION);
+            return EXIT_NORETURN;
+        }
+        /* FALL THROUGH */
+    case S390_FEAT_TYPE_PCKMO:
+    case S390_FEAT_TYPE_PCC:
+        break;
+    default:
+        g_assert_not_reached();
+    };
+
+    t_r1 = tcg_const_i32(r1);
+    t_r2 = tcg_const_i32(r2);
+    t_r3 = tcg_const_i32(r3);
+    type = tcg_const_i32(s->insn->data);
+    gen_helper_msa(cc_op, cpu_env, t_r1, t_r2, t_r3, type);
+    set_cc_static(s);
+    tcg_temp_free_i32(t_r1);
+    tcg_temp_free_i32(t_r2);
+    tcg_temp_free_i32(t_r3);
+    tcg_temp_free_i32(type);
+    return NO_EXIT;
+}
+
 static ExitStatus op_keb(DisasContext *s, DisasOps *o)
 {
     gen_helper_keb(cc_op, cpu_env, o->in1, o->in2);
@@ -5571,6 +5623,10 @@ enum DisasInsnEnum {
 #define FAC_PPA         S390_FEAT_STFLE_49 /* processor-assist */
 #define FAC_LZRB        S390_FEAT_STFLE_53 /* load-and-zero-rightmost-byte */
 #define FAC_ETF3        S390_FEAT_EXTENDED_TRANSLATION_3
+#define FAC_MSA         S390_FEAT_MSA /* message-security-assist facility */
+#define FAC_MSA3        S390_FEAT_MSA_EXT_3 /* msa-extension-3 facility */
+#define FAC_MSA4        S390_FEAT_MSA_EXT_4 /* msa-extension-4 facility */
+#define FAC_MSA5        S390_FEAT_MSA_EXT_5 /* msa-extension-5 facility */
 
 static const DisasInsn insn_info[] = {
 #include "insn-data.def"
