Merge remote-tracking branch 'remotes/rth/tags/pull-s390-20170623' into staging

Queued target/s390x patches

# gpg: Signature made Fri 23 Jun 2017 17:18:24 BST
# gpg:                using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC  16A4 AD12 70CC 4DD0 279B

* remotes/rth/tags/pull-s390-20170623:
  target/s390x: Implement idte instruction
  target/s390x: Improve heuristic for ipte
  target/s390x: Indicate and check for local tlb clearing
  target/s390x: Clean up TB flag bits
  target/s390x: Finish implementing ETF2-ENH
  target/s390x: Mark STFLE_49 facility as available
  target/s390x: Implement processor-assist insn
  target/s390x: Implement execution-hint insns
  target/s390x: Mark STFLE_53 facility as available
  target/s390x: Implement load-and-zero-rightmost-byte insns
  target/s390x: Implement load-on-condition-2 insns
  target/s390x: Mark FPSEH facility as available
  target/s390x: implement mvcos instruction
  target/s390x: change PSW_SHIFT_KEY
  target/s390x: Map existing FAC_* names to S390_FEAT_* names

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

7 files changed, 411 insertions, 89 deletions

diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h
index a4028fb..9faca04 100644
--- a/target/s390x/cpu.h
+++ b/target/s390x/cpu.h
@@ -304,6 +304,7 @@ void s390x_cpu_debug_excp_handler(CPUState *cs);
 #undef PSW_MASK_WAIT
 #undef PSW_MASK_PSTATE
 #undef PSW_MASK_ASC
+#undef PSW_SHIFT_ASC
 #undef PSW_MASK_CC
 #undef PSW_MASK_PM
 #undef PSW_MASK_64
@@ -315,11 +316,12 @@ void s390x_cpu_debug_excp_handler(CPUState *cs);
 #define PSW_MASK_IO             0x0200000000000000ULL
 #define PSW_MASK_EXT            0x0100000000000000ULL
 #define PSW_MASK_KEY            0x00F0000000000000ULL
-#define PSW_SHIFT_KEY           56
+#define PSW_SHIFT_KEY           52
 #define PSW_MASK_MCHECK         0x0004000000000000ULL
 #define PSW_MASK_WAIT           0x0002000000000000ULL
 #define PSW_MASK_PSTATE         0x0001000000000000ULL
 #define PSW_MASK_ASC            0x0000C00000000000ULL
+#define PSW_SHIFT_ASC           46
 #define PSW_MASK_CC             0x0000300000000000ULL
 #define PSW_MASK_PM             0x00000F0000000000ULL
 #define PSW_MASK_64             0x0000000100000000ULL
@@ -336,24 +338,26 @@ void s390x_cpu_debug_excp_handler(CPUState *cs);
 #define PSW_ASC_SECONDARY       0x0000800000000000ULL
 #define PSW_ASC_HOME            0x0000C00000000000ULL
 
+/* the address space values shifted */
+#define AS_PRIMARY              0
+#define AS_ACCREG               1
+#define AS_SECONDARY            2
+#define AS_HOME                 3
+
 /* tb flags */
 
-#define FLAG_MASK_PER           (PSW_MASK_PER    >> 32)
-#define FLAG_MASK_DAT           (PSW_MASK_DAT    >> 32)
-#define FLAG_MASK_IO            (PSW_MASK_IO     >> 32)
-#define FLAG_MASK_EXT           (PSW_MASK_EXT    >> 32)
-#define FLAG_MASK_KEY           (PSW_MASK_KEY    >> 32)
-#define FLAG_MASK_MCHECK        (PSW_MASK_MCHECK >> 32)
-#define FLAG_MASK_WAIT          (PSW_MASK_WAIT   >> 32)
-#define FLAG_MASK_PSTATE        (PSW_MASK_PSTATE >> 32)
-#define FLAG_MASK_ASC           (PSW_MASK_ASC    >> 32)
-#define FLAG_MASK_CC            (PSW_MASK_CC     >> 32)
-#define FLAG_MASK_PM            (PSW_MASK_PM     >> 32)
-#define FLAG_MASK_64            (PSW_MASK_64     >> 32)
-#define FLAG_MASK_32            0x00001000
+#define FLAG_MASK_PSW_SHIFT     31
+#define FLAG_MASK_PER           (PSW_MASK_PER    >> FLAG_MASK_PSW_SHIFT)
+#define FLAG_MASK_PSTATE        (PSW_MASK_PSTATE >> FLAG_MASK_PSW_SHIFT)
+#define FLAG_MASK_ASC           (PSW_MASK_ASC    >> FLAG_MASK_PSW_SHIFT)
+#define FLAG_MASK_64            (PSW_MASK_64     >> FLAG_MASK_PSW_SHIFT)
+#define FLAG_MASK_32            (PSW_MASK_32     >> FLAG_MASK_PSW_SHIFT)
+#define FLAG_MASK_PSW		(FLAG_MASK_PER | FLAG_MASK_PSTATE \
+                                | FLAG_MASK_ASC | FLAG_MASK_64 | FLAG_MASK_32)
 
 /* Control register 0 bits */
 #define CR0_LOWPROT             0x0000000010000000ULL
+#define CR0_SECONDARY           0x0000000004000000ULL
 #define CR0_EDAT                0x0000000000800000ULL
 
 /* MMU */
@@ -361,7 +365,18 @@ void s390x_cpu_debug_excp_handler(CPUState *cs);
 #define MMU_SECONDARY_IDX       1
 #define MMU_HOME_IDX            2
 
-static inline int cpu_mmu_index (CPUS390XState *env, bool ifetch)
+static inline bool psw_key_valid(CPUS390XState *env, uint8_t psw_key)
+{
+    uint16_t pkm = env->cregs[3] >> 16;
+
+    if (env->psw.mask & PSW_MASK_PSTATE) {
+        /* PSW key has range 0..15, it is valid if the bit is 1 in the PKM */
+        return pkm & (0x80 >> psw_key);
+    }
+    return true;
+}
+
+static inline int cpu_mmu_index(CPUS390XState *env, bool ifetch)
 {
     switch (env->psw.mask & PSW_MASK_ASC) {
     case PSW_ASC_PRIMARY:
@@ -396,8 +411,7 @@ static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc,
 {
     *pc = env->psw.addr;
     *cs_base = env->ex_value;
-    *flags = ((env->psw.mask >> 32) & ~FLAG_MASK_CC) |
-             ((env->psw.mask & PSW_MASK_32) ? FLAG_MASK_32 : 0);
+    *flags = (env->psw.mask >> FLAG_MASK_PSW_SHIFT) & FLAG_MASK_PSW;
 }
 
 #define MAX_ILEN 6
diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c
index 478bcc6..63903c2 100644
--- a/target/s390x/cpu_models.c
+++ b/target/s390x/cpu_models.c
@@ -675,6 +675,7 @@ static void check_compatibility(const S390CPUModel *max_model,
 static void add_qemu_cpu_model_features(S390FeatBitmap fbm)
 {
     static const int feats[] = {
+        S390_FEAT_DAT_ENH,
         S390_FEAT_STFLE,
         S390_FEAT_EXTENDED_IMMEDIATE,
         S390_FEAT_EXTENDED_TRANSLATION_2,
@@ -682,9 +683,14 @@ static void add_qemu_cpu_model_features(S390FeatBitmap fbm)
         S390_FEAT_LONG_DISPLACEMENT_FAST,
         S390_FEAT_ETF2_ENH,
         S390_FEAT_STORE_CLOCK_FAST,
+        S390_FEAT_MOVE_WITH_OPTIONAL_SPEC,
         S390_FEAT_GENERAL_INSTRUCTIONS_EXT,
         S390_FEAT_EXECUTE_EXT,
+        S390_FEAT_FLOATING_POINT_SUPPPORT_ENH,
         S390_FEAT_STFLE_45,
+        S390_FEAT_STFLE_49,
+        S390_FEAT_LOCAL_TLB_CLEARING,
+        S390_FEAT_STFLE_53,
     };
     int i;
 
diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index 69249a5..964097b 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -105,6 +105,7 @@ DEF_HELPER_FLAGS_1(stfl, TCG_CALL_NO_RWG, void, env)
 DEF_HELPER_2(stfle, i32, env, i64)
 DEF_HELPER_FLAGS_2(lpq, TCG_CALL_NO_WG, i64, env, i64)
 DEF_HELPER_FLAGS_4(stpq, TCG_CALL_NO_WG, void, env, i64, i64, i64)
+DEF_HELPER_4(mvcos, i32, env, i64, i64, i64)
 
 #ifndef CONFIG_USER_ONLY
 DEF_HELPER_3(servc, i32, env, i64, i64)
@@ -130,6 +131,7 @@ DEF_HELPER_4(mvcs, i32, env, i64, i64, i64)
 DEF_HELPER_4(mvcp, i32, env, i64, i64, i64)
 DEF_HELPER_4(sigp, i32, env, i64, i32, i64)
 DEF_HELPER_FLAGS_2(sacf, TCG_CALL_NO_WG, void, env, i64)
+DEF_HELPER_FLAGS_4(idte, TCG_CALL_NO_RWG, void, env, i64, i64, i32)
 DEF_HELPER_FLAGS_4(ipte, TCG_CALL_NO_RWG, void, env, i64, i64, i32)
 DEF_HELPER_FLAGS_1(ptlb, TCG_CALL_NO_RWG, void, env)
 DEF_HELPER_FLAGS_1(purge, TCG_CALL_NO_RWG, void, env)
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index d089707..d3bb851 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -134,6 +134,15 @@
     D(0x8500, BRXLE,   RSI,   Z,   0, 0, 0, 0, bx32, 0, 1)
     D(0xec44, BRXHG,   RIE_e, Z,   0, 0, 0, 0, bx64, 0, 0)
     D(0xec45, BRXHLE,  RIE_e, Z,   0, 0, 0, 0, bx64, 0, 1)
+/* BRANCH PREDICTION PRELOAD */
+    /* ??? Format is SMI, but implemented as NOP, so we need no fields.  */
+    C(0xc700, BPP,     E,     EH,  0, 0, 0, 0, 0, 0)
+/* BRANCH PREDICTION RELATIVE PRELOAD */
+    /* ??? Format is MII, but implemented as NOP, so we need no fields.  */
+    C(0xc500, BPRP,    E,     EH,  0, 0, 0, 0, 0, 0)
+/* NEXT INSTRUCTION ACCESS INTENT */
+    /* ??? Format is IE, but implemented as NOP, so we need no fields.  */
+    C(0xb2fa, NIAI,    E,     EH,  0, 0, 0, 0, 0, 0)
 
 /* CHECKSUM */
     C(0xb241, CKSM,    RRE,   Z,   r1_o, ra2, new, r1_32, cksm, 0)
@@ -427,6 +436,11 @@
 /* LOAD AND TRAP */
     C(0xe39f, LAT,     RXY_a, LAT, 0, m2_32u, r1, 0, lat, 0)
     C(0xe385, LGAT,    RXY_a, LAT, 0, a2, r1, 0, lgat, 0)
+/* LOAD AND ZERO RIGHTMOST BYTE */
+    C(0xe3eb, LZRF,    RXY_a, LZRB, 0, m2_32u, new, r1_32, lzrb, 0)
+    C(0xe32a, LZRG,    RXY_a, LZRB, 0, m2_64, r1, 0, lzrb, 0)
+/* LOAD LOGICAL AND ZERO RIGHTMOST BYTE */
+    C(0xe33a, LLZRGF,  RXY_a, LZRB, 0, m2_32u, r1, 0, lzrb, 0)
 /* LOAD BYTE */
     C(0xb926, LBR,     RRE,   EI,  0, r2_8s, 0, r1_32, mov2, 0)
     C(0xb906, LGBR,    RRE,   EI,  0, r2_8s, 0, r1, mov2, 0)
@@ -514,6 +528,13 @@
     C(0xb9e2, LOCGR,   RRF_c, LOC, r1, r2, r1, 0, loc, 0)
     C(0xebf2, LOC,     RSY_b, LOC, r1, m2_32u, new, r1_32, loc, 0)
     C(0xebe2, LOCG,    RSY_b, LOC, r1, m2_64, r1, 0, loc, 0)
+/* LOAD HALFWORD IMMEDIATE ON CONDITION */
+    C(0xec42, LOCHI,   RIE_g, LOC2, r1, i2, new, r1_32, loc, 0)
+    C(0xec46, LOCGHI,  RIE_g, LOC2, r1, i2, r1, 0, loc, 0)
+    C(0xec4e, LOCHHI,  RIE_g, LOC2, r1_sr32, i2, new, r1_32h, loc, 0)
+/* LOAD HIGH ON CONDITION */
+    C(0xb9e0, LOCFHR,  RRF_c, LOC2, r1_sr32, r2, new, r1_32h, loc, 0)
+    C(0xebe0, LOCFH,   RSY_b, LOC2, r1_sr32, m2_32u, new, r1_32h, loc, 0)
 /* LOAD PAIR DISJOINT */
     D(0xc804, LPD,     SSF,   ILA, 0, 0, new_P, r3_P32, lpd, 0, MO_TEUL)
     D(0xc805, LPDG,    SSF,   ILA, 0, 0, new_P, r3_P64, lpd, 0, MO_TEQ)
@@ -590,6 +611,8 @@
     C(0xb254, MVPG,    RRE,   Z,   r1_o, r2_o, 0, 0, mvpg, 0)
 /* MOVE STRING */
     C(0xb255, MVST,    RRE,   Z,   r1_o, r2_o, 0, 0, mvst, 0)
+/* MOVE WITH OPTIONAL SPECIFICATION */
+    C(0xc800, MVCOS,   SSF,   MVCOS, la1, a2, 0, 0, mvcos, 0)
 /* MOVE WITH OFFSET */
     /* Really format SS_b, but we pack both lengths into one argument
        for the helper call, so we might as well leave one 8-bit field.  */
@@ -676,6 +699,9 @@
     /* Implemented as nops of course.  */
     C(0xe336, PFD,     RXY_b, GIE, 0, 0, 0, 0, 0, 0)
     C(0xc602, PFDRL,   RIL_c, GIE, 0, 0, 0, 0, 0, 0)
+/* PERFORM PROCESSOR ASSIST */
+    /* Implemented as nop of course.  */
+    C(0xb2e8, PPA,     RRF_c, PPA, 0, 0, 0, 0, 0, 0)
 
 /* POPULATION COUNT */
     C(0xb9e1, POPCNT,  RRE,   PC,  0, r2_o, r1, 0, popcnt, nz64)
@@ -777,6 +803,8 @@
 /* STORE ON CONDITION */
     D(0xebf3, STOC,    RSY_b, LOC, 0, 0, 0, 0, soc, 0, 0)
     D(0xebe3, STOCG,   RSY_b, LOC, 0, 0, 0, 0, soc, 0, 1)
+/* STORE HIGH ON CONDITION */
+    D(0xebe1, STOCFH,  RSY_b, LOC2, 0, 0, 0, 0, soc, 0, 2)
 /* STORE REVERSED */
     C(0xe33f, STRVH,   RXY_a, Z,   la2, r1_16u, new, m1_16, rev16, 0)
     C(0xe33e, STRV,    RXY_a, Z,   la2, r1_32u, new, m1_32, rev32, 0)
@@ -900,6 +928,8 @@
     C(0x8300, DIAG,    RSI,   Z,   0, 0, 0, 0, diag, 0)
 /* INSERT STORAGE KEY EXTENDED */
     C(0xb229, ISKE,    RRE,   Z,   0, r2_o, new, r1_8, iske, 0)
+/* INVALIDATE DAT TABLE ENTRY */
+    C(0xb98e, IPDE,    RRF_b, Z,   r1_o, r2_o, 0, 0, idte, 0)
 /* INVALIDATE PAGE TABLE ENTRY */
     C(0xb221, IPTE,    RRF_a, Z,   r1_o, r2_o, 0, 0, ipte, 0)
 /* LOAD CONTROL */
diff --git a/target/s390x/insn-format.def b/target/s390x/insn-format.def
index 0e898b9..a412d90 100644
--- a/target/s390x/insn-format.def
+++ b/target/s390x/insn-format.def
@@ -11,6 +11,7 @@ F4(RIE_c, R(1, 8),     I(2,32, 8),  M(3,12),   I(4,16,16))
 F3(RIE_d, R(1, 8),     I(2,16,16),  R(3,12))
 F3(RIE_e, R(1, 8),     I(2,16,16),  R(3,12))
 F5(RIE_f, R(1, 8),     R(2,12),     I(3,16,8), I(4,24,8),  I(5,32,8))
+F3(RIE_g, R(1, 8),     I(2,16,16),  M(3,12))
 F2(RIL_a, R(1, 8),     I(2,16,32))
 F2(RIL_b, R(1, 8),     I(2,16,32))
 F2(RIL_c, M(1, 8),     I(2,16,32))
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index 80caab9..ede8471 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -110,6 +110,20 @@ static inline void cpu_stsize_data_ra(CPUS390XState *env, uint64_t addr,
     }
 }
 
+static inline uint64_t wrap_address(CPUS390XState *env, uint64_t a)
+{
+    if (!(env->psw.mask & PSW_MASK_64)) {
+        if (!(env->psw.mask & PSW_MASK_32)) {
+            /* 24-Bit mode */
+            a &= 0x00ffffff;
+        } else {
+            /* 31-Bit mode */
+            a &= 0x7fffffff;
+        }
+    }
+    return a;
+}
+
 static void fast_memset(CPUS390XState *env, uint64_t dest, uint8_t byte,
                         uint32_t l, uintptr_t ra)
 {
@@ -133,6 +147,68 @@ static void fast_memset(CPUS390XState *env, uint64_t dest, uint8_t byte,
     }
 }
 
+#ifndef CONFIG_USER_ONLY
+static void fast_memmove_idx(CPUS390XState *env, uint64_t dest, uint64_t src,
+                             uint32_t len, int dest_idx, int src_idx,
+                             uintptr_t ra)
+{
+    TCGMemOpIdx oi_dest = make_memop_idx(MO_UB, dest_idx);
+    TCGMemOpIdx oi_src = make_memop_idx(MO_UB, src_idx);
+    uint32_t len_adj;
+    void *src_p;
+    void *dest_p;
+    uint8_t x;
+
+    while (len > 0) {
+        src = wrap_address(env, src);
+        dest = wrap_address(env, dest);
+        src_p = tlb_vaddr_to_host(env, src, MMU_DATA_LOAD, src_idx);
+        dest_p = tlb_vaddr_to_host(env, dest, MMU_DATA_STORE, dest_idx);
+
+        if (src_p && dest_p) {
+            /* Access to both whole pages granted.  */
+            len_adj = adj_len_to_page(adj_len_to_page(len, src), dest);
+            memmove(dest_p, src_p, len_adj);
+        } else {
+            /* We failed to get access to one or both whole pages. The next
+               read or write access will likely fill the QEMU TLB for the
+               next iteration.  */
+            len_adj = 1;
+            x = helper_ret_ldub_mmu(env, src, oi_src, ra);
+            helper_ret_stb_mmu(env, dest, x, oi_dest, ra);
+        }
+        src += len_adj;
+        dest += len_adj;
+        len -= len_adj;
+    }
+}
+
+static int mmu_idx_from_as(uint8_t as)
+{
+    switch (as) {
+    case AS_PRIMARY:
+        return MMU_PRIMARY_IDX;
+    case AS_SECONDARY:
+        return MMU_SECONDARY_IDX;
+    case AS_HOME:
+        return MMU_HOME_IDX;
+    default:
+        /* FIXME AS_ACCREG */
+        g_assert_not_reached();
+    }
+}
+
+static void fast_memmove_as(CPUS390XState *env, uint64_t dest, uint64_t src,
+                            uint32_t len, uint8_t dest_as, uint8_t src_as,
+                            uintptr_t ra)
+{
+    int src_idx = mmu_idx_from_as(src_as);
+    int dest_idx = mmu_idx_from_as(dest_as);
+
+    fast_memmove_idx(env, dest, src, len, dest_idx, src_idx, ra);
+}
+#endif
+
 static void fast_memmove(CPUS390XState *env, uint64_t dest, uint64_t src,
                          uint32_t l, uintptr_t ra)
 {
@@ -408,20 +484,6 @@ uint32_t HELPER(clm)(CPUS390XState *env, uint32_t r1, uint32_t mask,
     return cc;
 }
 
-static inline uint64_t wrap_address(CPUS390XState *env, uint64_t a)
-{
-    if (!(env->psw.mask & PSW_MASK_64)) {
-        if (!(env->psw.mask & PSW_MASK_32)) {
-            /* 24-Bit mode */
-            a &= 0x00ffffff;
-        } else {
-            /* 31-Bit mode */
-            a &= 0x7fffffff;
-        }
-    }
-    return a;
-}
-
 static inline uint64_t get_address(CPUS390XState *env, int reg)
 {
     return wrap_address(env, env->regs[reg]);
@@ -1203,13 +1265,22 @@ uint32_t HELPER(trXX)(CPUS390XState *env, uint32_t r1, uint32_t r2,
     uintptr_t ra = GETPC();
     int dsize = (sizes & 1) ? 1 : 2;
     int ssize = (sizes & 2) ? 1 : 2;
-    uint64_t tbl = get_address(env, 1) & ~7;
+    uint64_t tbl = get_address(env, 1);
     uint64_t dst = get_address(env, r1);
     uint64_t len = get_length(env, r1 + 1);
     uint64_t src = get_address(env, r2);
     uint32_t cc = 3;
     int i;
 
+    /* The lower address bits of TBL are ignored.  For TROO, TROT, it's
+       the low 3 bits (double-word aligned).  For TRTO, TRTT, it's either
+       the low 12 bits (4K, without ETF2-ENH) or 3 bits (with ETF2-ENH).  */
+    if (ssize == 2 && !s390_has_feat(S390_FEAT_ETF2_ENH)) {
+        tbl &= -4096;
+    } else {
+        tbl &= -8;
+    }
+
     check_alignment(env, len, ssize, ra);
 
     /* Lest we fail to service interrupts in a timely manner, */
@@ -1539,6 +1610,57 @@ uint32_t HELPER(mvcp)(CPUS390XState *env, uint64_t l, uint64_t a1, uint64_t a2)
     return cc;
 }
 
+void HELPER(idte)(CPUS390XState *env, uint64_t r1, uint64_t r2, uint32_t m4)
+{
+    CPUState *cs = CPU(s390_env_get_cpu(env));
+    const uintptr_t ra = GETPC();
+    uint64_t table, entry, raddr;
+    uint16_t entries, i, index = 0;
+
+    if (r2 & 0xff000) {
+        cpu_restore_state(cs, ra);
+        program_interrupt(env, PGM_SPECIFICATION, 4);
+    }
+
+    if (!(r2 & 0x800)) {
+        /* invalidation-and-clearing operation */
+        table = r1 & _ASCE_ORIGIN;
+        entries = (r2 & 0x7ff) + 1;
+
+        switch (r1 & _ASCE_TYPE_MASK) {
+        case _ASCE_TYPE_REGION1:
+            index = (r2 >> 53) & 0x7ff;
+            break;
+        case _ASCE_TYPE_REGION2:
+            index = (r2 >> 42) & 0x7ff;
+            break;
+        case _ASCE_TYPE_REGION3:
+            index = (r2 >> 31) & 0x7ff;
+            break;
+        case _ASCE_TYPE_SEGMENT:
+            index = (r2 >> 20) & 0x7ff;
+            break;
+        }
+        for (i = 0; i < entries; i++) {
+            /* addresses are not wrapped in 24/31bit mode but table index is */
+            raddr = table + ((index + i) & 0x7ff) * sizeof(entry);
+            entry = ldq_phys(cs->as, raddr);
+            if (!(entry & _REGION_ENTRY_INV)) {
+                /* we are allowed to not store if already invalid */
+                entry |= _REGION_ENTRY_INV;
+                stq_phys(cs->as, raddr, entry);
+            }
+        }
+    }
+
+    /* We simply flush the complete tlb, therefore we can ignore r3. */
+    if (m4 & 1) {
+        tlb_flush(cs);
+    } else {
+        tlb_flush_all_cpus_synced(cs);
+    }
+}
+
 /* invalidate pte */
 void HELPER(ipte)(CPUS390XState *env, uint64_t pto, uint64_t vaddr,
                   uint32_t m4)
@@ -1558,19 +1680,24 @@ void HELPER(ipte)(CPUS390XState *env, uint64_t pto, uint64_t vaddr,
 
     /* XXX we exploit the fact that Linux passes the exact virtual
        address here - it's not obliged to! */
-    /* XXX: the LC bit should be considered as 0 if the local-TLB-clearing
-       facility is not installed.  */
     if (m4 & 1) {
-        tlb_flush_page(cs, page);
-    } else {
-        tlb_flush_page_all_cpus_synced(cs, page);
-    }
-
-    /* XXX 31-bit hack */
-    if (m4 & 1) {
-        tlb_flush_page(cs, page ^ 0x80000000);
+        if (vaddr & ~VADDR_PX) {
+            tlb_flush_page(cs, page);
+            /* XXX 31-bit hack */
+            tlb_flush_page(cs, page ^ 0x80000000);
+        } else {
+            /* looks like we don't have a valid virtual address */
+            tlb_flush(cs);
+        }
     } else {
-        tlb_flush_page_all_cpus_synced(cs, page ^ 0x80000000);
+        if (vaddr & ~VADDR_PX) {
+            tlb_flush_page_all_cpus_synced(cs, page);
+            /* XXX 31-bit hack */
+            tlb_flush_page_all_cpus_synced(cs, page ^ 0x80000000);
+        } else {
+            /* looks like we don't have a valid virtual address */
+            tlb_flush_all_cpus_synced(cs);
+        }
     }
 }
 
@@ -1789,3 +1916,94 @@ void HELPER(ex)(CPUS390XState *env, uint32_t ilen, uint64_t r1, uint64_t addr)
        that requires such execution.  */
     env->ex_value = insn | ilen;
 }
+
+uint32_t HELPER(mvcos)(CPUS390XState *env, uint64_t dest, uint64_t src,
+                       uint64_t len)
+{
+    const uint8_t psw_key = (env->psw.mask & PSW_MASK_KEY) >> PSW_SHIFT_KEY;
+    const uint8_t psw_as = (env->psw.mask & PSW_MASK_ASC) >> PSW_SHIFT_ASC;
+    const uint64_t r0 = env->regs[0];
+    const uintptr_t ra = GETPC();
+    CPUState *cs = CPU(s390_env_get_cpu(env));
+    uint8_t dest_key, dest_as, dest_k, dest_a;
+    uint8_t src_key, src_as, src_k, src_a;
+    uint64_t val;
+    int cc = 0;
+
+    HELPER_LOG("%s dest %" PRIx64 ", src %" PRIx64 ", len %" PRIx64 "\n",
+               __func__, dest, src, len);
+
+    if (!(env->psw.mask & PSW_MASK_DAT)) {
+        cpu_restore_state(cs, ra);
+        program_interrupt(env, PGM_SPECIAL_OP, 6);
+    }
+
+    /* OAC (operand access control) for the first operand -> dest */
+    val = (r0 & 0xffff0000ULL) >> 16;
+    dest_key = (val >> 12) & 0xf;
+    dest_as = (val >> 6) & 0x3;
+    dest_k = (val >> 1) & 0x1;
+    dest_a = val & 0x1;
+
+    /* OAC (operand access control) for the second operand -> src */
+    val = (r0 & 0x0000ffffULL);
+    src_key = (val >> 12) & 0xf;
+    src_as = (val >> 6) & 0x3;
+    src_k = (val >> 1) & 0x1;
+    src_a = val & 0x1;
+
+    if (!dest_k) {
+        dest_key = psw_key;
+    }
+    if (!src_k) {
+        src_key = psw_key;
+    }
+    if (!dest_a) {
+        dest_as = psw_as;
+    }
+    if (!src_a) {
+        src_as = psw_as;
+    }
+
+    if (dest_a && dest_as == AS_HOME && (env->psw.mask & PSW_MASK_PSTATE)) {
+        cpu_restore_state(cs, ra);
+        program_interrupt(env, PGM_SPECIAL_OP, 6);
+    }
+    if (!(env->cregs[0] & CR0_SECONDARY) &&
+        (dest_as == AS_SECONDARY || src_as == AS_SECONDARY)) {
+        cpu_restore_state(cs, ra);
+        program_interrupt(env, PGM_SPECIAL_OP, 6);
+    }
+    if (!psw_key_valid(env, dest_key) || !psw_key_valid(env, src_key)) {
+        cpu_restore_state(cs, ra);
+        program_interrupt(env, PGM_PRIVILEGED, 6);
+    }
+
+    len = wrap_length(env, len);
+    if (len > 4096) {
+        cc = 3;
+        len = 4096;
+    }
+
+    /* FIXME: AR-mode and proper problem state mode (using PSW keys) missing */
+    if (src_as == AS_ACCREG || dest_as == AS_ACCREG ||
+        (env->psw.mask & PSW_MASK_PSTATE)) {
+        qemu_log_mask(LOG_UNIMP, "%s: AR-mode and PSTATE support missing\n",
+                      __func__);
+        cpu_restore_state(cs, ra);
+        program_interrupt(env, PGM_ADDRESSING, 6);
+    }
+
+    /* FIXME: a) LAP
+     *        b) Access using correct keys
+     *        c) AR-mode
+     */
+#ifdef CONFIG_USER_ONLY
+    /* psw keys are never valid in user mode, we will never reach this */
+    g_assert_not_reached();
+#else
+    fast_memmove_as(env, dest, src, len, dest_as, src_as, ra);
+#endif
+
+    return cc;
+}
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 6403542..592d6b0 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -323,11 +323,11 @@ static inline uint64_t ld_code4(CPUS390XState *env, uint64_t pc)
 static int get_mem_index(DisasContext *s)
 {
     switch (s->tb->flags & FLAG_MASK_ASC) {
-    case PSW_ASC_PRIMARY >> 32:
+    case PSW_ASC_PRIMARY >> FLAG_MASK_PSW_SHIFT:
         return 0;
-    case PSW_ASC_SECONDARY >> 32:
+    case PSW_ASC_SECONDARY >> FLAG_MASK_PSW_SHIFT:
         return 1;
-    case PSW_ASC_HOME >> 32:
+    case PSW_ASC_HOME >> FLAG_MASK_PSW_SHIFT:
         return 2;
     default:
         tcg_abort();
@@ -387,7 +387,7 @@ static inline void gen_trap(DisasContext *s)
 #ifndef CONFIG_USER_ONLY
 static void check_privileged(DisasContext *s)
 {
-    if (s->tb->flags & (PSW_MASK_PSTATE >> 32)) {
+    if (s->tb->flags & FLAG_MASK_PSTATE) {
         gen_program_exception(s, PGM_PRIVILEGED);
     }
 }
@@ -1180,39 +1180,10 @@ typedef enum {
     EXIT_NORETURN,
 } ExitStatus;
 
-typedef enum DisasFacility {
-    FAC_Z,                  /* zarch (default) */
-    FAC_CASS,               /* compare and swap and store */
-    FAC_CASS2,              /* compare and swap and store 2*/
-    FAC_DFP,                /* decimal floating point */
-    FAC_DFPR,               /* decimal floating point rounding */
-    FAC_DO,                 /* distinct operands */
-    FAC_EE,                 /* execute extensions */
-    FAC_EI,                 /* extended immediate */
-    FAC_FPE,                /* floating point extension */
-    FAC_FPSSH,              /* floating point support sign handling */
-    FAC_FPRGR,              /* FPR-GR transfer */
-    FAC_GIE,                /* general instructions extension */
-    FAC_HFP_MA,             /* HFP multiply-and-add/subtract */
-    FAC_HW,                 /* high-word */
-    FAC_IEEEE_SIM,          /* IEEE exception sumilation */
-    FAC_MIE,                /* miscellaneous-instruction-extensions */
-    FAC_LAT,                /* load-and-trap */
-    FAC_LOC,                /* load/store on condition */
-    FAC_LD,                 /* long displacement */
-    FAC_PC,                 /* population count */
-    FAC_SCF,                /* store clock fast */
-    FAC_SFLE,               /* store facility list extended */
-    FAC_ILA,                /* interlocked access facility 1 */
-    FAC_LPP,                /* load-program-parameter */
-    FAC_DAT_ENH,            /* DAT-enhancement */
-    FAC_E2,                 /* extended-translation facility 2 */
-} DisasFacility;
-
 struct DisasInsn {
     unsigned opc:16;
     DisasFormat fmt:8;
-    DisasFacility fac:8;
+    unsigned fac:8;
     unsigned spec:8;
 
     const char *name;
@@ -2409,12 +2380,31 @@ static ExitStatus op_ipm(DisasContext *s, DisasOps *o)
 }
 
 #ifndef CONFIG_USER_ONLY
+static ExitStatus op_idte(DisasContext *s, DisasOps *o)
+{
+    TCGv_i32 m4;
+
+    check_privileged(s);
+    if (s390_has_feat(S390_FEAT_LOCAL_TLB_CLEARING)) {
+        m4 = tcg_const_i32(get_field(s->fields, m4));
+    } else {
+        m4 = tcg_const_i32(0);
+    }
+    gen_helper_idte(cpu_env, o->in1, o->in2, m4);
+    tcg_temp_free_i32(m4);
+    return NO_EXIT;
+}
+
 static ExitStatus op_ipte(DisasContext *s, DisasOps *o)
 {
     TCGv_i32 m4;
 
     check_privileged(s);
-    m4 = tcg_const_i32(get_field(s->fields, m4));
+    if (s390_has_feat(S390_FEAT_LOCAL_TLB_CLEARING)) {
+        m4 = tcg_const_i32(get_field(s->fields, m4));
+    } else {
+        m4 = tcg_const_i32(0);
+    }
     gen_helper_ipte(cpu_env, o->in1, o->in2, m4);
     tcg_temp_free_i32(m4);
     return NO_EXIT;
@@ -2935,6 +2925,12 @@ static ExitStatus op_lurag(DisasContext *s, DisasOps *o)
 }
 #endif
 
+static ExitStatus op_lzrb(DisasContext *s, DisasOps *o)
+{
+    tcg_gen_andi_i64(o->out, o->in2, -256);
+    return NO_EXIT;
+}
+
 static ExitStatus op_mov2(DisasContext *s, DisasOps *o)
 {
     o->out = o->in2;
@@ -2955,20 +2951,20 @@ static ExitStatus op_mov2e(DisasContext *s, DisasOps *o)
     o->g_in2 = false;
 
     switch (s->tb->flags & FLAG_MASK_ASC) {
-    case PSW_ASC_PRIMARY >> 32:
+    case PSW_ASC_PRIMARY >> FLAG_MASK_PSW_SHIFT:
         tcg_gen_movi_i64(ar1, 0);
         break;
-    case PSW_ASC_ACCREG >> 32:
+    case PSW_ASC_ACCREG >> FLAG_MASK_PSW_SHIFT:
         tcg_gen_movi_i64(ar1, 1);
         break;
-    case PSW_ASC_SECONDARY >> 32:
+    case PSW_ASC_SECONDARY >> FLAG_MASK_PSW_SHIFT:
         if (b2) {
             tcg_gen_ld32u_i64(ar1, cpu_env, offsetof(CPUS390XState, aregs[b2]));
         } else {
             tcg_gen_movi_i64(ar1, 0);
         }
         break;
-    case PSW_ASC_HOME >> 32:
+    case PSW_ASC_HOME >> FLAG_MASK_PSW_SHIFT:
         tcg_gen_movi_i64(ar1, 2);
         break;
     }
@@ -3070,6 +3066,14 @@ static ExitStatus op_mvclu(DisasContext *s, DisasOps *o)
     return NO_EXIT;
 }
 
+static ExitStatus op_mvcos(DisasContext *s, DisasOps *o)
+{
+    int r3 = get_field(s->fields, r3);
+    gen_helper_mvcos(cc_op, cpu_env, o->addr1, o->in2, regs[r3]);
+    set_cc_static(s);
+    return NO_EXIT;
+}
+
 #ifndef CONFIG_USER_ONLY
 static ExitStatus op_mvcp(DisasContext *s, DisasOps *o)
 {
@@ -3662,7 +3666,7 @@ static ExitStatus op_sigp(DisasContext *s, DisasOps *o)
 static ExitStatus op_soc(DisasContext *s, DisasOps *o)
 {
     DisasCompare c;
-    TCGv_i64 a;
+    TCGv_i64 a, h;
     TCGLabel *lab;
     int r1;
 
@@ -3682,10 +3686,21 @@ static ExitStatus op_soc(DisasContext *s, DisasOps *o)
 
     r1 = get_field(s->fields, r1);
     a = get_address(s, 0, get_field(s->fields, b2), get_field(s->fields, d2));
-    if (s->insn->data) {
+    switch (s->insn->data) {
+    case 1: /* STOCG */
         tcg_gen_qemu_st64(regs[r1], a, get_mem_index(s));
-    } else {
+        break;
+    case 0: /* STOC */
         tcg_gen_qemu_st32(regs[r1], a, get_mem_index(s));
+        break;
+    case 2: /* STOCFH */
+        h = tcg_temp_new_i64();
+        tcg_gen_shri_i64(h, regs[r1], 32);
+        tcg_gen_qemu_st32(h, a, get_mem_index(s));
+        tcg_temp_free_i64(h);
+        break;
+    default:
+        g_assert_not_reached();
     }
     tcg_temp_free_i64(a);
 
@@ -3782,7 +3797,7 @@ static ExitStatus op_spka(DisasContext *s, DisasOps *o)
 {
     check_privileged(s);
     tcg_gen_shri_i64(o->in2, o->in2, 4);
-    tcg_gen_deposit_i64(psw_mask, psw_mask, o->in2, PSW_SHIFT_KEY - 4, 4);
+    tcg_gen_deposit_i64(psw_mask, psw_mask, o->in2, PSW_SHIFT_KEY, 4);
     return NO_EXIT;
 }
 
@@ -4360,8 +4375,9 @@ static ExitStatus op_trXX(DisasContext *s, DisasOps *o)
     TCGv_i32 tst = tcg_temp_new_i32();
     int m3 = get_field(s->fields, m3);
 
-    /* XXX: the C bit in M3 should be considered as 0 when the
-       ETF2-enhancement facility is not installed.  */
+    if (!s390_has_feat(S390_FEAT_ETF2_ENH)) {
+        m3 = 0;
+    }
     if (m3 & 1) {
         tcg_gen_movi_i32(tst, -1);
     } else {
@@ -5418,6 +5434,39 @@ enum DisasInsnEnum {
 #define SPEC_prep_0 0
 #define SPEC_wout_0 0
 
+/* Give smaller names to the various facilities.  */
+#define FAC_Z           S390_FEAT_ZARCH
+#define FAC_CASS        S390_FEAT_COMPARE_AND_SWAP_AND_STORE
+#define FAC_CASS2       S390_FEAT_COMPARE_AND_SWAP_AND_STORE_2
+#define FAC_DFP         S390_FEAT_DFP
+#define FAC_DFPR        S390_FEAT_FLOATING_POINT_SUPPPORT_ENH /* DFP-rounding */
+#define FAC_DO          S390_FEAT_STFLE_45 /* distinct-operands */
+#define FAC_EE          S390_FEAT_EXECUTE_EXT
+#define FAC_EI          S390_FEAT_EXTENDED_IMMEDIATE
+#define FAC_FPE         S390_FEAT_FLOATING_POINT_EXT
+#define FAC_FPSSH       S390_FEAT_FLOATING_POINT_SUPPPORT_ENH /* FPS-sign-handling */
+#define FAC_FPRGR       S390_FEAT_FLOATING_POINT_SUPPPORT_ENH /* FPR-GR-transfer */
+#define FAC_GIE         S390_FEAT_GENERAL_INSTRUCTIONS_EXT
+#define FAC_HFP_MA      S390_FEAT_HFP_MADDSUB
+#define FAC_HW          S390_FEAT_STFLE_45 /* high-word */
+#define FAC_IEEEE_SIM   S390_FEAT_FLOATING_POINT_SUPPPORT_ENH /* IEEE-exception-simulation */
+#define FAC_MIE         S390_FEAT_STFLE_49 /* misc-instruction-extensions */
+#define FAC_LAT         S390_FEAT_STFLE_49 /* load-and-trap */
+#define FAC_LOC         S390_FEAT_STFLE_45 /* load/store on condition 1 */
+#define FAC_LOC2        S390_FEAT_STFLE_53 /* load/store on condition 2 */
+#define FAC_LD          S390_FEAT_LONG_DISPLACEMENT
+#define FAC_PC          S390_FEAT_STFLE_45 /* population count */
+#define FAC_SCF         S390_FEAT_STORE_CLOCK_FAST
+#define FAC_SFLE        S390_FEAT_STFLE
+#define FAC_ILA         S390_FEAT_STFLE_45 /* interlocked-access-facility 1 */
+#define FAC_MVCOS       S390_FEAT_MOVE_WITH_OPTIONAL_SPEC
+#define FAC_LPP         S390_FEAT_SET_PROGRAM_PARAMETERS /* load-program-parameter */
+#define FAC_DAT_ENH     S390_FEAT_DAT_ENH
+#define FAC_E2          S390_FEAT_EXTENDED_TRANSLATION_2
+#define FAC_EH          S390_FEAT_STFLE_49 /* execution-hint */
+#define FAC_PPA         S390_FEAT_STFLE_49 /* processor-assist */
+#define FAC_LZRB        S390_FEAT_STFLE_53 /* load-and-zero-rightmost-byte */
+
 static const DisasInsn insn_info[] = {
 #include "insn-data.def"
 };
@@ -5529,7 +5578,7 @@ static const DisasInsn *extract_insn(CPUS390XState *env, DisasContext *s,
     case 0x80: /* S */
     case 0x82: /* S */
     case 0x93: /* S */
-    case 0xb2: /* S, RRF, RRE */
+    case 0xb2: /* S, RRF, RRE, IE */
     case 0xb3: /* RRE, RRD, RRF */
     case 0xb9: /* RRE, RRF */
     case 0xe5: /* SSE, SIL */
@@ -5545,6 +5594,8 @@ static const DisasInsn *extract_insn(CPUS390XState *env, DisasContext *s,
     case 0xcc: /* RIL */
         op2 = (insn << 12) >> 60;
         break;
+    case 0xc5: /* MII */
+    case 0xc7: /* SMI */
     case 0xd0 ... 0xdf: /* SS */
     case 0xe1: /* SS */
     case 0xe2: /* SS */