Merge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20201217-1' into staging

A collection of RISC-V improvements:
 - Improve the sifive_u DTB generation
 - Add QSPI NOR flash to Microchip PFSoC
 - Fix a bug in the Hypervisor HLVX/HLV/HSV instructions
 - Fix some mstatus mask defines
 - Ibex PLIC improvements
 - OpenTitan memory layout update
 - Initial steps towards support for 32-bit CPUs on 64-bit builds

# gpg: Signature made Fri 18 Dec 2020 05:59:42 GMT
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8  CE8F 21E1 0D29 DF97 7054

* remotes/alistair/tags/pull-riscv-to-apply-20201217-1: (23 commits)
  riscv/opentitan: Update the OpenTitan memory layout
  hw/riscv: Use the CPU to determine if 32-bit
  target/riscv: cpu: Set XLEN independently from target
  target/riscv: csr: Remove compile time XLEN checks
  target/riscv: cpu_helper: Remove compile time XLEN checks
  target/riscv: cpu: Remove compile time XLEN checks
  target/riscv: Specify the XLEN for CPUs
  target/riscv: Add a riscv_cpu_is_32bit() helper function
  target/riscv: fpu_helper: Match function defs in HELPER macros
  hw/riscv: sifive_u: Remove compile time XLEN checks
  hw/riscv: spike: Remove compile time XLEN checks
  hw/riscv: virt: Remove compile time XLEN checks
  hw/riscv: boot: Remove compile time XLEN checks
  riscv: virt: Remove target macro conditionals
  riscv: spike: Remove target macro conditionals
  target/riscv: Add a TYPE_RISCV_CPU_BASE CPU
  hw/riscv: Expand the is 32-bit check to support more CPUs
  intc/ibex_plic: Clear interrupts that occur during claim process
  target/riscv: Fix definition of MSTATUS_TW and MSTATUS_TSR
  target/riscv: Fix the bug of HLVX/HLV/HSV
  ...

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

7 files changed, 176 insertions, 147 deletions

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 6a0264f..254cd83 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -108,6 +108,15 @@ const char *riscv_cpu_get_trap_name(target_ulong cause, bool async)
     }
 }
 
+bool riscv_cpu_is_32bit(CPURISCVState *env)
+{
+    if (env->misa & RV64) {
+        return false;
+    }
+
+    return true;
+}
+
 static void set_misa(CPURISCVState *env, target_ulong misa)
 {
     env->misa_mask = env->misa = misa;
@@ -142,29 +151,50 @@ static void riscv_any_cpu_init(Object *obj)
     set_priv_version(env, PRIV_VERSION_1_11_0);
 }
 
-static void riscv_base_cpu_init(Object *obj)
+#if defined(TARGET_RISCV64)
+static void rv64_base_cpu_init(Object *obj)
 {
     CPURISCVState *env = &RISCV_CPU(obj)->env;
     /* We set this in the realise function */
-    set_misa(env, 0);
+    set_misa(env, RV64);
 }
 
-static void rvxx_sifive_u_cpu_init(Object *obj)
+static void rv64_sifive_u_cpu_init(Object *obj)
 {
     CPURISCVState *env = &RISCV_CPU(obj)->env;
-    set_misa(env, RVXLEN | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
+    set_misa(env, RV64 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
     set_priv_version(env, PRIV_VERSION_1_10_0);
 }
 
-static void rvxx_sifive_e_cpu_init(Object *obj)
+static void rv64_sifive_e_cpu_init(Object *obj)
 {
     CPURISCVState *env = &RISCV_CPU(obj)->env;
-    set_misa(env, RVXLEN | RVI | RVM | RVA | RVC | RVU);
+    set_misa(env, RV64 | RVI | RVM | RVA | RVC | RVU);
     set_priv_version(env, PRIV_VERSION_1_10_0);
     qdev_prop_set_bit(DEVICE(obj), "mmu", false);
 }
+#else
+static void rv32_base_cpu_init(Object *obj)
+{
+    CPURISCVState *env = &RISCV_CPU(obj)->env;
+    /* We set this in the realise function */
+    set_misa(env, RV32);
+}
 
-#if defined(TARGET_RISCV32)
+static void rv32_sifive_u_cpu_init(Object *obj)
+{
+    CPURISCVState *env = &RISCV_CPU(obj)->env;
+    set_misa(env, RV32 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
+    set_priv_version(env, PRIV_VERSION_1_10_0);
+}
+
+static void rv32_sifive_e_cpu_init(Object *obj)
+{
+    CPURISCVState *env = &RISCV_CPU(obj)->env;
+    set_misa(env, RV32 | RVI | RVM | RVA | RVC | RVU);
+    set_priv_version(env, PRIV_VERSION_1_10_0);
+    qdev_prop_set_bit(DEVICE(obj), "mmu", false);
+}
 
 static void rv32_ibex_cpu_init(Object *obj)
 {
@@ -182,7 +212,6 @@ static void rv32_imafcu_nommu_cpu_init(Object *obj)
     set_resetvec(env, DEFAULT_RSTVEC);
     qdev_prop_set_bit(DEVICE(obj), "mmu", false);
 }
-
 #endif
 
 static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model)
@@ -218,10 +247,10 @@ static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags)
 #ifndef CONFIG_USER_ONLY
     qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mhartid ", env->mhartid);
     qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mstatus ", (target_ulong)env->mstatus);
-#ifdef TARGET_RISCV32
-    qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mstatush ",
-                 (target_ulong)(env->mstatus >> 32));
-#endif
+    if (riscv_cpu_is_32bit(env)) {
+        qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mstatush ",
+                     (target_ulong)(env->mstatus >> 32));
+    }
     if (riscv_has_ext(env, RVH)) {
         qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "hstatus ", env->hstatus);
         qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "vsstatus ",
@@ -334,11 +363,12 @@ static void riscv_cpu_reset(DeviceState *dev)
 
 static void riscv_cpu_disas_set_info(CPUState *s, disassemble_info *info)
 {
-#if defined(TARGET_RISCV32)
-    info->print_insn = print_insn_riscv32;
-#elif defined(TARGET_RISCV64)
-    info->print_insn = print_insn_riscv64;
-#endif
+    RISCVCPU *cpu = RISCV_CPU(s);
+    if (riscv_cpu_is_32bit(&cpu->env)) {
+        info->print_insn = print_insn_riscv32;
+    } else {
+        info->print_insn = print_insn_riscv64;
+    }
 }
 
 static void riscv_cpu_realize(DeviceState *dev, Error **errp)
@@ -349,7 +379,7 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp)
     RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev);
     int priv_version = PRIV_VERSION_1_11_0;
     int vext_version = VEXT_VERSION_0_07_1;
-    target_ulong target_misa = 0;
+    target_ulong target_misa = env->misa;
     Error *local_err = NULL;
 
     cpu_exec_realizefn(cs, &local_err);
@@ -384,8 +414,8 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp)
 
     set_resetvec(env, cpu->cfg.resetvec);
 
-    /* If misa isn't set (rv32 and rv64 machines) set it here */
-    if (!env->misa) {
+    /* If only XLEN is set for misa, then set misa from properties */
+    if (env->misa == RV32 || env->misa == RV64) {
         /* Do some ISA extension error checking */
         if (cpu->cfg.ext_i && cpu->cfg.ext_e) {
             error_setg(errp,
@@ -481,7 +511,7 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp)
             set_vext_version(env, vext_version);
         }
 
-        set_misa(env, RVXLEN | target_misa);
+        set_misa(env, target_misa);
     }
 
     riscv_cpu_register_gdb_regs_for_features(cs);
@@ -632,15 +662,15 @@ static const TypeInfo riscv_cpu_type_infos[] = {
     },
     DEFINE_CPU(TYPE_RISCV_CPU_ANY,              riscv_any_cpu_init),
 #if defined(TARGET_RISCV32)
-    DEFINE_CPU(TYPE_RISCV_CPU_BASE32,           riscv_base_cpu_init),
+    DEFINE_CPU(TYPE_RISCV_CPU_BASE32,           rv32_base_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_IBEX,             rv32_ibex_cpu_init),
-    DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E31,       rvxx_sifive_e_cpu_init),
+    DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E31,       rv32_sifive_e_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E34,       rv32_imafcu_nommu_cpu_init),
-    DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U34,       rvxx_sifive_u_cpu_init),
+    DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U34,       rv32_sifive_u_cpu_init),
 #elif defined(TARGET_RISCV64)
-    DEFINE_CPU(TYPE_RISCV_CPU_BASE64,           riscv_base_cpu_init),
-    DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E51,       rvxx_sifive_e_cpu_init),
-    DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U54,       rvxx_sifive_u_cpu_init),
+    DEFINE_CPU(TYPE_RISCV_CPU_BASE64,           rv64_base_cpu_init),
+    DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E51,       rv64_sifive_e_cpu_init),
+    DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U54,       rv64_sifive_u_cpu_init),
 #endif
 };
 
diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index c0a326c..6339e84 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -44,6 +44,12 @@
 #define TYPE_RISCV_CPU_SIFIVE_U34       RISCV_CPU_TYPE_NAME("sifive-u34")
 #define TYPE_RISCV_CPU_SIFIVE_U54       RISCV_CPU_TYPE_NAME("sifive-u54")
 
+#if defined(TARGET_RISCV32)
+# define TYPE_RISCV_CPU_BASE            TYPE_RISCV_CPU_BASE32
+#elif defined(TARGET_RISCV64)
+# define TYPE_RISCV_CPU_BASE            TYPE_RISCV_CPU_BASE64
+#endif
+
 #define RV32 ((target_ulong)1 << (TARGET_LONG_BITS - 2))
 #define RV64 ((target_ulong)2 << (TARGET_LONG_BITS - 2))
 
@@ -378,6 +384,8 @@ FIELD(TB_FLAGS, VILL, 8, 1)
 /* Is a Hypervisor instruction load/store allowed? */
 FIELD(TB_FLAGS, HLSX, 9, 1)
 
+bool riscv_cpu_is_32bit(CPURISCVState *env);
+
 /*
  * A simplification for VLMAX
  * = (1 << LMUL) * VLEN / (8 * (1 << SEW))
diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h
index 24b24c6..b41e883 100644
--- a/target/riscv/cpu_bits.h
+++ b/target/riscv/cpu_bits.h
@@ -379,8 +379,8 @@
 #define MSTATUS_MXR         0x00080000
 #define MSTATUS_VM          0x1F000000 /* until: priv-1.9.1 */
 #define MSTATUS_TVM         0x00100000 /* since: priv-1.10 */
-#define MSTATUS_TW          0x20000000 /* since: priv-1.10 */
-#define MSTATUS_TSR         0x40000000 /* since: priv-1.10 */
+#define MSTATUS_TW          0x00200000 /* since: priv-1.10 */
+#define MSTATUS_TSR         0x00400000 /* since: priv-1.10 */
 #define MSTATUS_GVA         0x4000000000ULL
 #define MSTATUS_MPV         0x8000000000ULL
 
@@ -437,9 +437,7 @@
 #define HSTATUS_VGEIN        0x0003F000
 #define HSTATUS_VTVM         0x00100000
 #define HSTATUS_VTSR         0x00400000
-#if defined(TARGET_RISCV64)
-#define HSTATUS_VSXL        0x300000000
-#endif
+#define HSTATUS_VSXL         0x300000000
 
 #define HSTATUS32_WPRI       0xFF8FF87E
 #define HSTATUS64_WPRI       0xFFFFFFFFFF8FF87EULL
diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index a2787b1..a2afb95 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -367,7 +367,8 @@ static int get_physical_address(CPURISCVState *env, hwaddr *physical,
         vm = get_field(env->hgatp, HGATP_MODE);
         widened = 2;
     }
-    sum = get_field(env->mstatus, MSTATUS_SUM);
+    /* status.SUM will be ignored if execute on background */
+    sum = get_field(env->mstatus, MSTATUS_SUM) || use_background;
     switch (vm) {
     case VM_1_10_SV32:
       levels = 2; ptidxbits = 10; ptesize = 4; break;
@@ -446,11 +447,13 @@ restart:
             return TRANSLATE_PMP_FAIL;
         }
 
-#if defined(TARGET_RISCV32)
-        target_ulong pte = address_space_ldl(cs->as, pte_addr, attrs, &res);
-#elif defined(TARGET_RISCV64)
-        target_ulong pte = address_space_ldq(cs->as, pte_addr, attrs, &res);
-#endif
+        target_ulong pte;
+        if (riscv_cpu_is_32bit(env)) {
+            pte = address_space_ldl(cs->as, pte_addr, attrs, &res);
+        } else {
+            pte = address_space_ldq(cs->as, pte_addr, attrs, &res);
+        }
+
         if (res != MEMTX_OK) {
             return TRANSLATE_FAIL;
         }
diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index 93263f8..10ab82e 100644
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -102,44 +102,65 @@ static int ctr(CPURISCVState *env, int csrno)
                 return -RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
             }
             break;
-#if defined(TARGET_RISCV32)
-        case CSR_CYCLEH:
-            if (!get_field(env->hcounteren, HCOUNTEREN_CY) &&
-                get_field(env->mcounteren, HCOUNTEREN_CY)) {
-                return -RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
-            }
-            break;
-        case CSR_TIMEH:
-            if (!get_field(env->hcounteren, HCOUNTEREN_TM) &&
-                get_field(env->mcounteren, HCOUNTEREN_TM)) {
-                return -RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
-            }
-            break;
-        case CSR_INSTRETH:
-            if (!get_field(env->hcounteren, HCOUNTEREN_IR) &&
-                get_field(env->mcounteren, HCOUNTEREN_IR)) {
-                return -RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
-            }
-            break;
-        case CSR_HPMCOUNTER3H...CSR_HPMCOUNTER31H:
-            if (!get_field(env->hcounteren, 1 << (csrno - CSR_HPMCOUNTER3H)) &&
-                get_field(env->mcounteren, 1 << (csrno - CSR_HPMCOUNTER3H))) {
-                return -RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
+        }
+        if (riscv_cpu_is_32bit(env)) {
+            switch (csrno) {
+            case CSR_CYCLEH:
+                if (!get_field(env->hcounteren, HCOUNTEREN_CY) &&
+                    get_field(env->mcounteren, HCOUNTEREN_CY)) {
+                    return -RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
+                }
+                break;
+            case CSR_TIMEH:
+                if (!get_field(env->hcounteren, HCOUNTEREN_TM) &&
+                    get_field(env->mcounteren, HCOUNTEREN_TM)) {
+                    return -RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
+                }
+                break;
+            case CSR_INSTRETH:
+                if (!get_field(env->hcounteren, HCOUNTEREN_IR) &&
+                    get_field(env->mcounteren, HCOUNTEREN_IR)) {
+                    return -RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
+                }
+                break;
+            case CSR_HPMCOUNTER3H...CSR_HPMCOUNTER31H:
+                if (!get_field(env->hcounteren, 1 << (csrno - CSR_HPMCOUNTER3H)) &&
+                    get_field(env->mcounteren, 1 << (csrno - CSR_HPMCOUNTER3H))) {
+                    return -RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
+                }
+                break;
             }
-            break;
-#endif
         }
     }
 #endif
     return 0;
 }
 
+static int ctr32(CPURISCVState *env, int csrno)
+{
+    if (!riscv_cpu_is_32bit(env)) {
+        return -RISCV_EXCP_ILLEGAL_INST;
+    }
+
+    return ctr(env, csrno);
+}
+
 #if !defined(CONFIG_USER_ONLY)
 static int any(CPURISCVState *env, int csrno)
 {
     return 0;
 }
 
+static int any32(CPURISCVState *env, int csrno)
+{
+    if (!riscv_cpu_is_32bit(env)) {
+        return -RISCV_EXCP_ILLEGAL_INST;
+    }
+
+    return any(env, csrno);
+
+}
+
 static int smode(CPURISCVState *env, int csrno)
 {
     return -!riscv_has_ext(env, RVS);
@@ -161,6 +182,16 @@ static int hmode(CPURISCVState *env, int csrno)
     return -RISCV_EXCP_ILLEGAL_INST;
 }
 
+static int hmode32(CPURISCVState *env, int csrno)
+{
+    if (!riscv_cpu_is_32bit(env)) {
+        return 0;
+    }
+
+    return hmode(env, csrno);
+
+}
+
 static int pmp(CPURISCVState *env, int csrno)
 {
     return -!riscv_feature(env, RISCV_FEATURE_PMP);
@@ -310,7 +341,6 @@ static int read_instret(CPURISCVState *env, int csrno, target_ulong *val)
     return 0;
 }
 
-#if defined(TARGET_RISCV32)
 static int read_instreth(CPURISCVState *env, int csrno, target_ulong *val)
 {
 #if !defined(CONFIG_USER_ONLY)
@@ -324,7 +354,6 @@ static int read_instreth(CPURISCVState *env, int csrno, target_ulong *val)
 #endif
     return 0;
 }
-#endif /* TARGET_RISCV32 */
 
 #if defined(CONFIG_USER_ONLY)
 static int read_time(CPURISCVState *env, int csrno, target_ulong *val)
@@ -333,13 +362,11 @@ static int read_time(CPURISCVState *env, int csrno, target_ulong *val)
     return 0;
 }
 
-#if defined(TARGET_RISCV32)
 static int read_timeh(CPURISCVState *env, int csrno, target_ulong *val)
 {
     *val = cpu_get_host_ticks() >> 32;
     return 0;
 }
-#endif
 
 #else /* CONFIG_USER_ONLY */
 
@@ -355,7 +382,6 @@ static int read_time(CPURISCVState *env, int csrno, target_ulong *val)
     return 0;
 }
 
-#if defined(TARGET_RISCV32)
 static int read_timeh(CPURISCVState *env, int csrno, target_ulong *val)
 {
     uint64_t delta = riscv_cpu_virt_enabled(env) ? env->htimedelta : 0;
@@ -367,7 +393,6 @@ static int read_timeh(CPURISCVState *env, int csrno, target_ulong *val)
     *val = (env->rdtime_fn(env->rdtime_fn_arg) + delta) >> 32;
     return 0;
 }
-#endif
 
 /* Machine constants */
 
@@ -406,19 +431,17 @@ static const target_ulong sip_writable_mask = SIP_SSIP | MIP_USIP | MIP_UEIP;
 static const target_ulong hip_writable_mask = MIP_VSSIP | MIP_VSTIP | MIP_VSEIP;
 static const target_ulong vsip_writable_mask = MIP_VSSIP;
 
-#if defined(TARGET_RISCV32)
-static const char valid_vm_1_10[16] = {
+static const char valid_vm_1_10_32[16] = {
     [VM_1_10_MBARE] = 1,
     [VM_1_10_SV32] = 1
 };
-#elif defined(TARGET_RISCV64)
-static const char valid_vm_1_10[16] = {
+
+static const char valid_vm_1_10_64[16] = {
     [VM_1_10_MBARE] = 1,
     [VM_1_10_SV39] = 1,
     [VM_1_10_SV48] = 1,
     [VM_1_10_SV57] = 1
 };
-#endif /* CONFIG_USER_ONLY */
 
 /* Machine Information Registers */
 static int read_zero(CPURISCVState *env, int csrno, target_ulong *val)
@@ -441,7 +464,11 @@ static int read_mstatus(CPURISCVState *env, int csrno, target_ulong *val)
 
 static int validate_vm(CPURISCVState *env, target_ulong vm)
 {
-    return valid_vm_1_10[vm & 0xf];
+    if (riscv_cpu_is_32bit(env)) {
+        return valid_vm_1_10_32[vm & 0xf];
+    } else {
+        return valid_vm_1_10_64[vm & 0xf];
+    }
 }
 
 static int write_mstatus(CPURISCVState *env, int csrno, target_ulong val)
@@ -459,13 +486,14 @@ static int write_mstatus(CPURISCVState *env, int csrno, target_ulong val)
         MSTATUS_SPP | MSTATUS_FS | MSTATUS_MPRV | MSTATUS_SUM |
         MSTATUS_MPP | MSTATUS_MXR | MSTATUS_TVM | MSTATUS_TSR |
         MSTATUS_TW;
-#if defined(TARGET_RISCV64)
-    /*
-     * RV32: MPV and GVA are not in mstatus. The current plan is to
-     * add them to mstatush. For now, we just don't support it.
-     */
-    mask |= MSTATUS_MPV | MSTATUS_GVA;
-#endif
+
+    if (!riscv_cpu_is_32bit(env)) {
+        /*
+         * RV32: MPV and GVA are not in mstatus. The current plan is to
+         * add them to mstatush. For now, we just don't support it.
+         */
+        mask |= MSTATUS_MPV | MSTATUS_GVA;
+    }
 
     mstatus = (mstatus & ~mask) | (val & mask);
 
@@ -477,7 +505,6 @@ static int write_mstatus(CPURISCVState *env, int csrno, target_ulong val)
     return 0;
 }
 
-#ifdef TARGET_RISCV32
 static int read_mstatush(CPURISCVState *env, int csrno, target_ulong *val)
 {
     *val = env->mstatus >> 32;
@@ -497,7 +524,6 @@ static int write_mstatush(CPURISCVState *env, int csrno, target_ulong val)
 
     return 0;
 }
-#endif
 
 static int read_misa(CPURISCVState *env, int csrno, target_ulong *val)
 {
@@ -895,10 +921,10 @@ static int write_satp(CPURISCVState *env, int csrno, target_ulong val)
 static int read_hstatus(CPURISCVState *env, int csrno, target_ulong *val)
 {
     *val = env->hstatus;
-#ifdef TARGET_RISCV64
-    /* We only support 64-bit VSXL */
-    *val = set_field(*val, HSTATUS_VSXL, 2);
-#endif
+    if (!riscv_cpu_is_32bit(env)) {
+        /* We only support 64-bit VSXL */
+        *val = set_field(*val, HSTATUS_VSXL, 2);
+    }
     /* We only support little endian */
     *val = set_field(*val, HSTATUS_VSBE, 0);
     return 0;
@@ -907,11 +933,9 @@ static int read_hstatus(CPURISCVState *env, int csrno, target_ulong *val)
 static int write_hstatus(CPURISCVState *env, int csrno, target_ulong val)
 {
     env->hstatus = val;
-#ifdef TARGET_RISCV64
-    if (get_field(val, HSTATUS_VSXL) != 2) {
+    if (!riscv_cpu_is_32bit(env) && get_field(val, HSTATUS_VSXL) != 2) {
         qemu_log_mask(LOG_UNIMP, "QEMU does not support mixed HSXLEN options.");
     }
-#endif
     if (get_field(val, HSTATUS_VSBE) != 0) {
         qemu_log_mask(LOG_UNIMP, "QEMU does not support big endian guests.");
     }
@@ -1053,11 +1077,7 @@ static int read_htimedelta(CPURISCVState *env, int csrno, target_ulong *val)
         return -RISCV_EXCP_ILLEGAL_INST;
     }
 
-#if defined(TARGET_RISCV32)
-    *val = env->htimedelta & 0xffffffff;
-#else
     *val = env->htimedelta;
-#endif
     return 0;
 }
 
@@ -1067,15 +1087,14 @@ static int write_htimedelta(CPURISCVState *env, int csrno, target_ulong val)
         return -RISCV_EXCP_ILLEGAL_INST;
     }
 
-#if defined(TARGET_RISCV32)
-    env->htimedelta = deposit64(env->htimedelta, 0, 32, (uint64_t)val);
-#else
-    env->htimedelta = val;
-#endif
+    if (riscv_cpu_is_32bit(env)) {
+        env->htimedelta = deposit64(env->htimedelta, 0, 32, (uint64_t)val);
+    } else {
+        env->htimedelta = val;
+    }
     return 0;
 }
 
-#if defined(TARGET_RISCV32)
 static int read_htimedeltah(CPURISCVState *env, int csrno, target_ulong *val)
 {
     if (!env->rdtime_fn) {
@@ -1095,7 +1114,6 @@ static int write_htimedeltah(CPURISCVState *env, int csrno, target_ulong val)
     env->htimedelta = deposit64(env->htimedelta, 32, 32, (uint64_t)val);
     return 0;
 }
-#endif
 
 /* Virtual CSR Registers */
 static int read_vsstatus(CPURISCVState *env, int csrno, target_ulong *val)
@@ -1374,26 +1392,20 @@ static riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
     /* User Timers and Counters */
     [CSR_CYCLE] =               { ctr,  read_instret                        },
     [CSR_INSTRET] =             { ctr,  read_instret                        },
-#if defined(TARGET_RISCV32)
-    [CSR_CYCLEH] =              { ctr,  read_instreth                       },
-    [CSR_INSTRETH] =            { ctr,  read_instreth                       },
-#endif
+    [CSR_CYCLEH] =              { ctr32,  read_instreth                     },
+    [CSR_INSTRETH] =            { ctr32,  read_instreth                     },
 
     /* In privileged mode, the monitor will have to emulate TIME CSRs only if
      * rdtime callback is not provided by machine/platform emulation */
     [CSR_TIME] =                { ctr,  read_time                           },
-#if defined(TARGET_RISCV32)
-    [CSR_TIMEH] =               { ctr,  read_timeh                          },
-#endif
+    [CSR_TIMEH] =               { ctr32,  read_timeh                        },
 
 #if !defined(CONFIG_USER_ONLY)
     /* Machine Timers and Counters */
     [CSR_MCYCLE] =              { any,  read_instret                        },
     [CSR_MINSTRET] =            { any,  read_instret                        },
-#if defined(TARGET_RISCV32)
-    [CSR_MCYCLEH] =             { any,  read_instreth                       },
-    [CSR_MINSTRETH] =           { any,  read_instreth                       },
-#endif
+    [CSR_MCYCLEH] =             { any32,  read_instreth                     },
+    [CSR_MINSTRETH] =           { any32,  read_instreth                     },
 
     /* Machine Information Registers */
     [CSR_MVENDORID] =           { any,  read_zero                           },
@@ -1410,9 +1422,7 @@ static riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
     [CSR_MTVEC] =               { any,  read_mtvec,       write_mtvec       },
     [CSR_MCOUNTEREN] =          { any,  read_mcounteren,  write_mcounteren  },
 
-#if defined(TARGET_RISCV32)
-    [CSR_MSTATUSH] =            { any,  read_mstatush,    write_mstatush    },
-#endif
+    [CSR_MSTATUSH] =            { any32,  read_mstatush,    write_mstatush  },
 
     [CSR_MSCOUNTEREN] =         { any,  read_mscounteren, write_mscounteren },
 
@@ -1452,9 +1462,7 @@ static riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
     [CSR_HGEIP] =               { hmode,   read_hgeip,       write_hgeip      },
     [CSR_HGATP] =               { hmode,   read_hgatp,       write_hgatp      },
     [CSR_HTIMEDELTA] =          { hmode,   read_htimedelta,  write_htimedelta },
-#if defined(TARGET_RISCV32)
-    [CSR_HTIMEDELTAH] =         { hmode,   read_htimedeltah, write_htimedeltah},
-#endif
+    [CSR_HTIMEDELTAH] =         { hmode32,   read_htimedeltah, write_htimedeltah},
 
     [CSR_VSSTATUS] =            { hmode,   read_vsstatus,    write_vsstatus   },
     [CSR_VSIP] =                { hmode,   NULL,     NULL,     rmw_vsip       },
@@ -1477,9 +1485,7 @@ static riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
     [CSR_HPMCOUNTER3   ... CSR_HPMCOUNTER31] =    { ctr,  read_zero          },
     [CSR_MHPMCOUNTER3  ... CSR_MHPMCOUNTER31] =   { any,  read_zero          },
     [CSR_MHPMEVENT3    ... CSR_MHPMEVENT31] =     { any,  read_zero          },
-#if defined(TARGET_RISCV32)
-    [CSR_HPMCOUNTER3H  ... CSR_HPMCOUNTER31H] =   { ctr,  read_zero          },
-    [CSR_MHPMCOUNTER3H ... CSR_MHPMCOUNTER31H] =  { any,  read_zero          },
-#endif
+    [CSR_HPMCOUNTER3H  ... CSR_HPMCOUNTER31H] =   { ctr32,  read_zero        },
+    [CSR_MHPMCOUNTER3H ... CSR_MHPMCOUNTER31H] =  { any32,  read_zero        },
 #endif /* !CONFIG_USER_ONLY */
 };
diff --git a/target/riscv/fpu_helper.c b/target/riscv/fpu_helper.c
index bb346a8..7c4ab92 100644
--- a/target/riscv/fpu_helper.c
+++ b/target/riscv/fpu_helper.c
@@ -223,7 +223,6 @@ target_ulong helper_fcvt_wu_s(CPURISCVState *env, uint64_t rs1)
     return (int32_t)float32_to_uint32(frs1, &env->fp_status);
 }
 
-#if defined(TARGET_RISCV64)
 uint64_t helper_fcvt_l_s(CPURISCVState *env, uint64_t rs1)
 {
     float32 frs1 = check_nanbox_s(rs1);
@@ -235,7 +234,6 @@ uint64_t helper_fcvt_lu_s(CPURISCVState *env, uint64_t rs1)
     float32 frs1 = check_nanbox_s(rs1);
     return float32_to_uint64(frs1, &env->fp_status);
 }
-#endif
 
 uint64_t helper_fcvt_s_w(CPURISCVState *env, target_ulong rs1)
 {
@@ -247,7 +245,6 @@ uint64_t helper_fcvt_s_wu(CPURISCVState *env, target_ulong rs1)
     return nanbox_s(uint32_to_float32((uint32_t)rs1, &env->fp_status));
 }
 
-#if defined(TARGET_RISCV64)
 uint64_t helper_fcvt_s_l(CPURISCVState *env, uint64_t rs1)
 {
     return nanbox_s(int64_to_float32(rs1, &env->fp_status));
@@ -257,7 +254,6 @@ uint64_t helper_fcvt_s_lu(CPURISCVState *env, uint64_t rs1)
 {
     return nanbox_s(uint64_to_float32(rs1, &env->fp_status));
 }
-#endif
 
 target_ulong helper_fclass_s(uint64_t rs1)
 {
@@ -336,7 +332,6 @@ target_ulong helper_fcvt_wu_d(CPURISCVState *env, uint64_t frs1)
     return (int32_t)float64_to_uint32(frs1, &env->fp_status);
 }
 
-#if defined(TARGET_RISCV64)
 uint64_t helper_fcvt_l_d(CPURISCVState *env, uint64_t frs1)
 {
     return float64_to_int64(frs1, &env->fp_status);
@@ -346,7 +341,6 @@ uint64_t helper_fcvt_lu_d(CPURISCVState *env, uint64_t frs1)
 {
     return float64_to_uint64(frs1, &env->fp_status);
 }
-#endif
 
 uint64_t helper_fcvt_d_w(CPURISCVState *env, target_ulong rs1)
 {
@@ -358,7 +352,6 @@ uint64_t helper_fcvt_d_wu(CPURISCVState *env, target_ulong rs1)
     return uint32_to_float64((uint32_t)rs1, &env->fp_status);
 }
 
-#if defined(TARGET_RISCV64)
 uint64_t helper_fcvt_d_l(CPURISCVState *env, uint64_t rs1)
 {
     return int64_to_float64(rs1, &env->fp_status);
@@ -368,7 +361,6 @@ uint64_t helper_fcvt_d_lu(CPURISCVState *env, uint64_t rs1)
 {
     return uint64_to_float64(rs1, &env->fp_status);
 }
-#endif
 
 target_ulong helper_fclass_d(uint64_t frs1)
 {
diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index 939731c..e3f3f41 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -27,16 +27,12 @@ DEF_HELPER_FLAGS_3(flt_s, TCG_CALL_NO_RWG, tl, env, i64, i64)
 DEF_HELPER_FLAGS_3(feq_s, TCG_CALL_NO_RWG, tl, env, i64, i64)
 DEF_HELPER_FLAGS_2(fcvt_w_s, TCG_CALL_NO_RWG, tl, env, i64)
 DEF_HELPER_FLAGS_2(fcvt_wu_s, TCG_CALL_NO_RWG, tl, env, i64)
-#if defined(TARGET_RISCV64)
-DEF_HELPER_FLAGS_2(fcvt_l_s, TCG_CALL_NO_RWG, tl, env, i64)
-DEF_HELPER_FLAGS_2(fcvt_lu_s, TCG_CALL_NO_RWG, tl, env, i64)
-#endif
+DEF_HELPER_FLAGS_2(fcvt_l_s, TCG_CALL_NO_RWG, i64, env, i64)
+DEF_HELPER_FLAGS_2(fcvt_lu_s, TCG_CALL_NO_RWG, i64, env, i64)
 DEF_HELPER_FLAGS_2(fcvt_s_w, TCG_CALL_NO_RWG, i64, env, tl)
 DEF_HELPER_FLAGS_2(fcvt_s_wu, TCG_CALL_NO_RWG, i64, env, tl)
-#if defined(TARGET_RISCV64)
-DEF_HELPER_FLAGS_2(fcvt_s_l, TCG_CALL_NO_RWG, i64, env, tl)
-DEF_HELPER_FLAGS_2(fcvt_s_lu, TCG_CALL_NO_RWG, i64, env, tl)
-#endif
+DEF_HELPER_FLAGS_2(fcvt_s_l, TCG_CALL_NO_RWG, i64, env, i64)
+DEF_HELPER_FLAGS_2(fcvt_s_lu, TCG_CALL_NO_RWG, i64, env, i64)
 DEF_HELPER_FLAGS_1(fclass_s, TCG_CALL_NO_RWG_SE, tl, i64)
 
 /* Floating Point - Double Precision */
@@ -54,16 +50,12 @@ DEF_HELPER_FLAGS_3(flt_d, TCG_CALL_NO_RWG, tl, env, i64, i64)
 DEF_HELPER_FLAGS_3(feq_d, TCG_CALL_NO_RWG, tl, env, i64, i64)
 DEF_HELPER_FLAGS_2(fcvt_w_d, TCG_CALL_NO_RWG, tl, env, i64)
 DEF_HELPER_FLAGS_2(fcvt_wu_d, TCG_CALL_NO_RWG, tl, env, i64)
-#if defined(TARGET_RISCV64)
-DEF_HELPER_FLAGS_2(fcvt_l_d, TCG_CALL_NO_RWG, tl, env, i64)
-DEF_HELPER_FLAGS_2(fcvt_lu_d, TCG_CALL_NO_RWG, tl, env, i64)
-#endif
+DEF_HELPER_FLAGS_2(fcvt_l_d, TCG_CALL_NO_RWG, i64, env, i64)
+DEF_HELPER_FLAGS_2(fcvt_lu_d, TCG_CALL_NO_RWG, i64, env, i64)
 DEF_HELPER_FLAGS_2(fcvt_d_w, TCG_CALL_NO_RWG, i64, env, tl)
 DEF_HELPER_FLAGS_2(fcvt_d_wu, TCG_CALL_NO_RWG, i64, env, tl)
-#if defined(TARGET_RISCV64)
-DEF_HELPER_FLAGS_2(fcvt_d_l, TCG_CALL_NO_RWG, i64, env, tl)
-DEF_HELPER_FLAGS_2(fcvt_d_lu, TCG_CALL_NO_RWG, i64, env, tl)
-#endif
+DEF_HELPER_FLAGS_2(fcvt_d_l, TCG_CALL_NO_RWG, i64, env, i64)
+DEF_HELPER_FLAGS_2(fcvt_d_lu, TCG_CALL_NO_RWG, i64, env, i64)
 DEF_HELPER_FLAGS_1(fclass_d, TCG_CALL_NO_RWG_SE, tl, i64)
 
 /* Special functions */