diff mbox series

[RFC,09/21] arm/cpu: Store id_isar0-7 into the idregs array

Message ID 20241025101959.601048-10-eric.auger@redhat.com
State New
Headers show
Series kvm/arm: Introduce a customizable aarch64 KVM host model | expand

Commit Message

Eric Auger Oct. 25, 2024, 10:17 a.m. UTC
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 target/arm/cpu-features.h |  36 +++++-----
 target/arm/cpu.h          |  14 ++--
 hw/intc/armv7m_nvic.c     |  12 ++--
 target/arm/cpu.c          |  24 +++----
 target/arm/cpu64.c        |  28 ++++----
 target/arm/helper.c       |  14 ++--
 target/arm/kvm.c          |  34 +++++----
 target/arm/tcg/cpu-v7m.c  |  90 +++++++++++++-----------
 target/arm/tcg/cpu32.c    | 143 ++++++++++++++++++++------------------
 target/arm/tcg/cpu64.c    | 108 ++++++++++++++--------------
 10 files changed, 262 insertions(+), 241 deletions(-)
diff mbox series

Patch

diff --git a/target/arm/cpu-features.h b/target/arm/cpu-features.h
index ada5d7eccc..306e6fa29f 100644
--- a/target/arm/cpu-features.h
+++ b/target/arm/cpu-features.h
@@ -44,93 +44,93 @@ 
  */
 static inline bool isar_feature_aa32_thumb_div(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar0, ID_ISAR0, DIVIDE) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR0, DIVIDE) != 0;
 }
 
 static inline bool isar_feature_aa32_arm_div(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar0, ID_ISAR0, DIVIDE) > 1;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR0, DIVIDE) > 1;
 }
 
 static inline bool isar_feature_aa32_lob(const ARMISARegisters *id)
 {
     /* (M-profile) low-overhead loops and branch future */
-    return FIELD_EX32(id->id_isar0, ID_ISAR0, CMPBRANCH) >= 3;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR0, CMPBRANCH) >= 3;
 }
 
 static inline bool isar_feature_aa32_jazelle(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar1, ID_ISAR1, JAZELLE) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR1, JAZELLE) != 0;
 }
 
 static inline bool isar_feature_aa32_aes(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar5, ID_ISAR5, AES) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR5, AES) != 0;
 }
 
 static inline bool isar_feature_aa32_pmull(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar5, ID_ISAR5, AES) > 1;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR5, AES) > 1;
 }
 
 static inline bool isar_feature_aa32_sha1(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar5, ID_ISAR5, SHA1) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR5, SHA1) != 0;
 }
 
 static inline bool isar_feature_aa32_sha2(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar5, ID_ISAR5, SHA2) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR5, SHA2) != 0;
 }
 
 static inline bool isar_feature_aa32_crc32(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar5, ID_ISAR5, CRC32) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR5, CRC32) != 0;
 }
 
 static inline bool isar_feature_aa32_rdm(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar5, ID_ISAR5, RDM) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR5, RDM) != 0;
 }
 
 static inline bool isar_feature_aa32_vcma(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar5, ID_ISAR5, VCMA) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR5, VCMA) != 0;
 }
 
 static inline bool isar_feature_aa32_jscvt(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar6, ID_ISAR6, JSCVT) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR6, JSCVT) != 0;
 }
 
 static inline bool isar_feature_aa32_dp(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar6, ID_ISAR6, DP) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR6, DP) != 0;
 }
 
 static inline bool isar_feature_aa32_fhm(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar6, ID_ISAR6, FHM) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR6, FHM) != 0;
 }
 
 static inline bool isar_feature_aa32_sb(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar6, ID_ISAR6, SB) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR6, SB) != 0;
 }
 
 static inline bool isar_feature_aa32_predinv(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar6, ID_ISAR6, SPECRES) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR6, SPECRES) != 0;
 }
 
 static inline bool isar_feature_aa32_bf16(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar6, ID_ISAR6, BF16) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR6, BF16) != 0;
 }
 
 static inline bool isar_feature_aa32_i8mm(const ARMISARegisters *id)
 {
-    return FIELD_EX32(id->id_isar6, ID_ISAR6, I8MM) != 0;
+    return FIELD_EX32_IDREG(&id->idregs, ID_ISAR6, I8MM) != 0;
 }
 
 static inline bool isar_feature_aa32_ras(const ARMISARegisters *id)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 7f808e5772..1c4fa6a561 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -871,6 +871,13 @@  regval = FIELD_DP64(regval, REG, FIELD, VALUE);               \
 _set_idreg(MAP, SYS_ ## REG ## _EL1, regval);                 \
 }
 
+#define FIELD_DP32_IDREG(MAP, REG, FIELD, VALUE)              \
+{                                                             \
+uint64_t regval = _get_idreg(MAP, SYS_ ## REG ## _EL1);       \
+regval = FIELD_DP32(regval, REG, FIELD, VALUE);               \
+_set_idreg(MAP, SYS_ ## REG ## _EL1, regval);                 \
+}
+
 #define FIELD_EX64_IDREG(MAP, REG, FIELD)                     \
 FIELD_EX64(_get_idreg(MAP, SYS_ ## REG ## _EL1), REG, FIELD)  \
 
@@ -1064,13 +1071,6 @@  struct ArchCPU {
      * field by reading the value from the KVM vCPU.
      */
     struct ARMISARegisters {
-        uint32_t id_isar0;
-        uint32_t id_isar1;
-        uint32_t id_isar2;
-        uint32_t id_isar3;
-        uint32_t id_isar4;
-        uint32_t id_isar5;
-        uint32_t id_isar6;
         uint32_t id_mmfr0;
         uint32_t id_mmfr1;
         uint32_t id_mmfr2;
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index 404a445138..818f6fdfa9 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -1303,32 +1303,32 @@  static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs)
         if (!arm_feature(&cpu->env, ARM_FEATURE_M_MAIN)) {
             goto bad_offset;
         }
-        return cpu->isar.id_isar0;
+        return GET_IDREG(&cpu->isar.idregs, ID_ISAR0);
     case 0xd64: /* ISAR1.  */
         if (!arm_feature(&cpu->env, ARM_FEATURE_M_MAIN)) {
             goto bad_offset;
         }
-        return cpu->isar.id_isar1;
+        return GET_IDREG(&cpu->isar.idregs, ID_ISAR1);
     case 0xd68: /* ISAR2.  */
         if (!arm_feature(&cpu->env, ARM_FEATURE_M_MAIN)) {
             goto bad_offset;
         }
-        return cpu->isar.id_isar2;
+        return GET_IDREG(&cpu->isar.idregs, ID_ISAR2);
     case 0xd6c: /* ISAR3.  */
         if (!arm_feature(&cpu->env, ARM_FEATURE_M_MAIN)) {
             goto bad_offset;
         }
-        return cpu->isar.id_isar3;
+        return GET_IDREG(&cpu->isar.idregs, ID_ISAR3);
     case 0xd70: /* ISAR4.  */
         if (!arm_feature(&cpu->env, ARM_FEATURE_M_MAIN)) {
             goto bad_offset;
         }
-        return cpu->isar.id_isar4;
+        return GET_IDREG(&cpu->isar.idregs, ID_ISAR4);
     case 0xd74: /* ISAR5.  */
         if (!arm_feature(&cpu->env, ARM_FEATURE_M_MAIN)) {
             goto bad_offset;
         }
-        return cpu->isar.id_isar5;
+        return GET_IDREG(&cpu->isar.idregs, ID_ISAR5);
     case 0xd78: /* CLIDR */
         return cpu->clidr;
     case 0xd7c: /* CTR */
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 42664dbfc1..bc80945da1 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -2127,10 +2127,10 @@  static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
 
         FIELD_DP64_IDREG(idregs, ID_AA64PFR0, FP, 0xf);
 
-        u = cpu->isar.id_isar6;
+        u = GET_IDREG(idregs, ID_ISAR6);
         u = FIELD_DP32(u, ID_ISAR6, JSCVT, 0);
         u = FIELD_DP32(u, ID_ISAR6, BF16, 0);
-        cpu->isar.id_isar6 = u;
+        SET_IDREG(idregs, ID_ISAR6, u);
 
         u = cpu->isar.mvfr0;
         u = FIELD_DP32(u, MVFR0, FPSP, 0);
@@ -2182,20 +2182,20 @@  static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
 
         FIELD_DP64_IDREG(idregs, ID_AA64PFR0, ADVSIMD, 0xf);
 
-        u = cpu->isar.id_isar5;
+        u = GET_IDREG(idregs, ID_ISAR5);
         u = FIELD_DP32(u, ID_ISAR5, AES, 0);
         u = FIELD_DP32(u, ID_ISAR5, SHA1, 0);
         u = FIELD_DP32(u, ID_ISAR5, SHA2, 0);
         u = FIELD_DP32(u, ID_ISAR5, RDM, 0);
         u = FIELD_DP32(u, ID_ISAR5, VCMA, 0);
-        cpu->isar.id_isar5 = u;
+        SET_IDREG(idregs, ID_ISAR5, u);
 
-        u = cpu->isar.id_isar6;
+        u = GET_IDREG(idregs, ID_ISAR6);
         u = FIELD_DP32(u, ID_ISAR6, DP, 0);
         u = FIELD_DP32(u, ID_ISAR6, FHM, 0);
         u = FIELD_DP32(u, ID_ISAR6, BF16, 0);
         u = FIELD_DP32(u, ID_ISAR6, I8MM, 0);
-        cpu->isar.id_isar6 = u;
+        SET_IDREG(idregs, ID_ISAR6, u);
 
         if (!arm_feature(env, ARM_FEATURE_M)) {
             u = cpu->isar.mvfr1;
@@ -2233,19 +2233,17 @@  static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
 
         unset_feature(env, ARM_FEATURE_THUMB_DSP);
 
-        u = cpu->isar.id_isar1;
-        u = FIELD_DP32(u, ID_ISAR1, EXTEND, 1);
-        cpu->isar.id_isar1 = u;
+        FIELD_DP32_IDREG(idregs, ID_ISAR1, EXTEND, 1);
 
-        u = cpu->isar.id_isar2;
+        u = GET_IDREG(idregs, ID_ISAR2);
         u = FIELD_DP32(u, ID_ISAR2, MULTU, 1);
         u = FIELD_DP32(u, ID_ISAR2, MULTS, 1);
-        cpu->isar.id_isar2 = u;
+        SET_IDREG(idregs, ID_ISAR2, u);
 
-        u = cpu->isar.id_isar3;
+        u = GET_IDREG(idregs, ID_ISAR3);
         u = FIELD_DP32(u, ID_ISAR3, SIMD, 1);
         u = FIELD_DP32(u, ID_ISAR3, SATURATE, 0);
-        cpu->isar.id_isar3 = u;
+        SET_IDREG(idregs, ID_ISAR3, u);
     }
 
 
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index bf3eb5d0b5..9c3784a35f 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -619,13 +619,13 @@  static void aarch64_a57_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
     cpu->isar.id_mmfr3 = 0x02102211;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00011142;
-    cpu->isar.id_isar5 = 0x00011121;
-    cpu->isar.id_isar6 = 0;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00011142);
+    SET_IDREG(idregs, ID_ISAR5, 0x00011121);
+    SET_IDREG(idregs, ID_ISAR6, 0);
     SET_IDREG(idregs, ID_AA64PFR0, 0x00002222);
     SET_IDREG(idregs, ID_AA64DFR0, 0x10305106);
     SET_IDREG(idregs, ID_AA64ISAR0, 0x00011120);
@@ -678,13 +678,13 @@  static void aarch64_a53_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
     cpu->isar.id_mmfr3 = 0x02102211;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00011142;
-    cpu->isar.id_isar5 = 0x00011121;
-    cpu->isar.id_isar6 = 0;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00011142);
+    SET_IDREG(idregs, ID_ISAR5, 0x00011121);
+    SET_IDREG(idregs, ID_ISAR6, 0);
     SET_IDREG(idregs, ID_AA64PFR0, 0x00002222);
     SET_IDREG(idregs, ID_AA64DFR0, 0x10305106);
     SET_IDREG(idregs, ID_AA64ISAR0, 0x00011120);
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 7e73130d35..1782de26f5 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -8778,32 +8778,32 @@  void register_cp_regs_for_features(ARMCPU *cpu)
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 0,
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa32_tid3,
-              .resetvalue = cpu->isar.id_isar0 },
+              .resetvalue = GET_IDREG(idregs, ID_ISAR0)},
             { .name = "ID_ISAR1", .state = ARM_CP_STATE_BOTH,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 1,
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa32_tid3,
-              .resetvalue = cpu->isar.id_isar1 },
+              .resetvalue = GET_IDREG(idregs, ID_ISAR1)},
             { .name = "ID_ISAR2", .state = ARM_CP_STATE_BOTH,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 2,
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa32_tid3,
-              .resetvalue = cpu->isar.id_isar2 },
+              .resetvalue = GET_IDREG(idregs, ID_ISAR2)},
             { .name = "ID_ISAR3", .state = ARM_CP_STATE_BOTH,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 3,
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa32_tid3,
-              .resetvalue = cpu->isar.id_isar3 },
+              .resetvalue = GET_IDREG(idregs, ID_ISAR3) },
             { .name = "ID_ISAR4", .state = ARM_CP_STATE_BOTH,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 4,
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa32_tid3,
-              .resetvalue = cpu->isar.id_isar4 },
+              .resetvalue = GET_IDREG(idregs, ID_ISAR4) },
             { .name = "ID_ISAR5", .state = ARM_CP_STATE_BOTH,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 5,
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa32_tid3,
-              .resetvalue = cpu->isar.id_isar5 },
+              .resetvalue = GET_IDREG(idregs, ID_ISAR5) },
             { .name = "ID_MMFR4", .state = ARM_CP_STATE_BOTH,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 6,
               .access = PL1_R, .type = ARM_CP_CONST,
@@ -8813,7 +8813,7 @@  void register_cp_regs_for_features(ARMCPU *cpu)
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 7,
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa32_tid3,
-              .resetvalue = cpu->isar.id_isar6 },
+              .resetvalue = GET_IDREG(idregs, ID_ISAR6) },
         };
         define_arm_cp_regs(cpu, v6_idregs);
         define_arm_cp_regs(cpu, v6_cp_reginfo);
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index e899f180f8..9873f8e849 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -231,6 +231,18 @@  static bool kvm_arm_pauth_supported(void)
             kvm_check_extension(kvm_state, KVM_CAP_ARM_PTRAUTH_GENERIC));
 }
 
+/* read a 32b sysreg value and store it in the idregs */
+static int get_host_cpu_reg32(int fd, ARMHostCPUFeatures *ahcf, ARMSysReg sr)
+{
+    int index = KVM_ARM_FEATURE_ID_RANGE_IDX(sr.op0, sr.op1, sr.crn, sr.crm, sr.op2);
+    uint64_t *reg = &ahcf->isar.idregs.regs[index];
+    int ret;
+
+    ret = read_sys_reg32(fd, (uint32_t *)reg,
+                         ARM64_SYS_REG(sr.op0, sr.op1, sr.crn, sr.crm, sr.op2));
+    return ret;
+}
+
 /* read a 64b sysreg value and store it in the idregs */
 static int get_host_cpu_reg64(int fd, ARMHostCPUFeatures *ahcf, ARMSysReg sr)
 {
@@ -243,6 +255,7 @@  static int get_host_cpu_reg64(int fd, ARMHostCPUFeatures *ahcf, ARMSysReg sr)
     return ret;
 }
 
+
 static bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
 {
     /* Identify the feature bits corresponding to the host CPU, and
@@ -356,22 +369,15 @@  static bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
                               ARM64_SYS_REG(3, 0, 0, 1, 6));
         err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr3,
                               ARM64_SYS_REG(3, 0, 0, 1, 7));
-        err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar0,
-                              ARM64_SYS_REG(3, 0, 0, 2, 0));
-        err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar1,
-                              ARM64_SYS_REG(3, 0, 0, 2, 1));
-        err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar2,
-                              ARM64_SYS_REG(3, 0, 0, 2, 2));
-        err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar3,
-                              ARM64_SYS_REG(3, 0, 0, 2, 3));
-        err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar4,
-                              ARM64_SYS_REG(3, 0, 0, 2, 4));
-        err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar5,
-                              ARM64_SYS_REG(3, 0, 0, 2, 5));
+        err |= get_host_cpu_reg32(fd, ahcf, SYS_ID_ISAR0_EL1);
+        err |= get_host_cpu_reg32(fd, ahcf, SYS_ID_ISAR1_EL1);
+        err |= get_host_cpu_reg32(fd, ahcf, SYS_ID_ISAR2_EL1);
+        err |= get_host_cpu_reg32(fd, ahcf, SYS_ID_ISAR3_EL1);
+        err |= get_host_cpu_reg32(fd, ahcf, SYS_ID_ISAR4_EL1);
+        err |= get_host_cpu_reg32(fd, ahcf, SYS_ID_ISAR5_EL1);
+        err |= get_host_cpu_reg32(fd, ahcf, SYS_ID_ISAR6_EL1);
         err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr4,
                               ARM64_SYS_REG(3, 0, 0, 2, 6));
-        err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_isar6,
-                              ARM64_SYS_REG(3, 0, 0, 2, 7));
 
         err |= read_sys_reg32(fdarray[2], &ahcf->isar.mvfr0,
                               ARM64_SYS_REG(3, 0, 0, 3, 0));
diff --git a/target/arm/tcg/cpu-v7m.c b/target/arm/tcg/cpu-v7m.c
index c059c681e9..fbde43d45e 100644
--- a/target/arm/tcg/cpu-v7m.c
+++ b/target/arm/tcg/cpu-v7m.c
@@ -46,6 +46,7 @@  static bool arm_v7m_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
 static void cortex_m0_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
     set_feature(&cpu->env, ARM_FEATURE_V6);
     set_feature(&cpu->env, ARM_FEATURE_M);
 
@@ -67,18 +68,19 @@  static void cortex_m0_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x00000000;
     cpu->isar.id_mmfr2 = 0x00000000;
     cpu->isar.id_mmfr3 = 0x00000000;
-    cpu->isar.id_isar0 = 0x01141110;
-    cpu->isar.id_isar1 = 0x02111000;
-    cpu->isar.id_isar2 = 0x21112231;
-    cpu->isar.id_isar3 = 0x01111110;
-    cpu->isar.id_isar4 = 0x01310102;
-    cpu->isar.id_isar5 = 0x00000000;
-    cpu->isar.id_isar6 = 0x00000000;
+    SET_IDREG(idregs, ID_ISAR0, 0x01141110);
+    SET_IDREG(idregs, ID_ISAR1, 0x02111000);
+    SET_IDREG(idregs, ID_ISAR2, 0x21112231);
+    SET_IDREG(idregs, ID_ISAR3, 0x01111110);
+    SET_IDREG(idregs, ID_ISAR4, 0x01310102);
+    SET_IDREG(idregs, ID_ISAR5, 0x00000000);
+    SET_IDREG(idregs, ID_ISAR6, 0x00000000);
 }
 
 static void cortex_m3_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
     set_feature(&cpu->env, ARM_FEATURE_V7);
     set_feature(&cpu->env, ARM_FEATURE_M);
     set_feature(&cpu->env, ARM_FEATURE_M_MAIN);
@@ -92,18 +94,19 @@  static void cortex_m3_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x00000000;
     cpu->isar.id_mmfr2 = 0x00000000;
     cpu->isar.id_mmfr3 = 0x00000000;
-    cpu->isar.id_isar0 = 0x01141110;
-    cpu->isar.id_isar1 = 0x02111000;
-    cpu->isar.id_isar2 = 0x21112231;
-    cpu->isar.id_isar3 = 0x01111110;
-    cpu->isar.id_isar4 = 0x01310102;
-    cpu->isar.id_isar5 = 0x00000000;
-    cpu->isar.id_isar6 = 0x00000000;
+    SET_IDREG(idregs, ID_ISAR0, 0x01141110);
+    SET_IDREG(idregs, ID_ISAR1, 0x02111000);
+    SET_IDREG(idregs, ID_ISAR2, 0x21112231);
+    SET_IDREG(idregs, ID_ISAR3, 0x01111110);
+    SET_IDREG(idregs, ID_ISAR4, 0x01310102);
+    SET_IDREG(idregs, ID_ISAR5, 0x00000000);
+    SET_IDREG(idregs, ID_ISAR6, 0x00000000);
 }
 
 static void cortex_m4_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     set_feature(&cpu->env, ARM_FEATURE_V7);
     set_feature(&cpu->env, ARM_FEATURE_M);
@@ -122,18 +125,19 @@  static void cortex_m4_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x00000000;
     cpu->isar.id_mmfr2 = 0x00000000;
     cpu->isar.id_mmfr3 = 0x00000000;
-    cpu->isar.id_isar0 = 0x01141110;
-    cpu->isar.id_isar1 = 0x02111000;
-    cpu->isar.id_isar2 = 0x21112231;
-    cpu->isar.id_isar3 = 0x01111110;
-    cpu->isar.id_isar4 = 0x01310102;
-    cpu->isar.id_isar5 = 0x00000000;
-    cpu->isar.id_isar6 = 0x00000000;
+    SET_IDREG(idregs, ID_ISAR0, 0x01141110);
+    SET_IDREG(idregs, ID_ISAR1, 0x02111000);
+    SET_IDREG(idregs, ID_ISAR2, 0x21112231);
+    SET_IDREG(idregs, ID_ISAR3, 0x01111110);
+    SET_IDREG(idregs, ID_ISAR4, 0x01310102);
+    SET_IDREG(idregs, ID_ISAR5, 0x00000000);
+    SET_IDREG(idregs, ID_ISAR6, 0x00000000);
 }
 
 static void cortex_m7_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     set_feature(&cpu->env, ARM_FEATURE_V7);
     set_feature(&cpu->env, ARM_FEATURE_M);
@@ -152,18 +156,19 @@  static void cortex_m7_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x00000000;
     cpu->isar.id_mmfr2 = 0x01000000;
     cpu->isar.id_mmfr3 = 0x00000000;
-    cpu->isar.id_isar0 = 0x01101110;
-    cpu->isar.id_isar1 = 0x02112000;
-    cpu->isar.id_isar2 = 0x20232231;
-    cpu->isar.id_isar3 = 0x01111131;
-    cpu->isar.id_isar4 = 0x01310132;
-    cpu->isar.id_isar5 = 0x00000000;
-    cpu->isar.id_isar6 = 0x00000000;
+    SET_IDREG(idregs, ID_ISAR0, 0x01101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x02112000);
+    SET_IDREG(idregs, ID_ISAR2, 0x20232231);
+    SET_IDREG(idregs, ID_ISAR3, 0x01111131);
+    SET_IDREG(idregs, ID_ISAR4, 0x01310132);
+    SET_IDREG(idregs, ID_ISAR5, 0x00000000);
+    SET_IDREG(idregs, ID_ISAR6, 0x00000000);
 }
 
 static void cortex_m33_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     set_feature(&cpu->env, ARM_FEATURE_V8);
     set_feature(&cpu->env, ARM_FEATURE_M);
@@ -184,13 +189,13 @@  static void cortex_m33_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x00000000;
     cpu->isar.id_mmfr2 = 0x01000000;
     cpu->isar.id_mmfr3 = 0x00000000;
-    cpu->isar.id_isar0 = 0x01101110;
-    cpu->isar.id_isar1 = 0x02212000;
-    cpu->isar.id_isar2 = 0x20232232;
-    cpu->isar.id_isar3 = 0x01111131;
-    cpu->isar.id_isar4 = 0x01310132;
-    cpu->isar.id_isar5 = 0x00000000;
-    cpu->isar.id_isar6 = 0x00000000;
+    SET_IDREG(idregs, ID_ISAR0, 0x01101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x02212000);
+    SET_IDREG(idregs, ID_ISAR2, 0x20232232);
+    SET_IDREG(idregs, ID_ISAR3, 0x01111131);
+    SET_IDREG(idregs, ID_ISAR4, 0x01310132);
+    SET_IDREG(idregs, ID_ISAR5, 0x00000000);
+    SET_IDREG(idregs, ID_ISAR6, 0x00000000);
     cpu->clidr = 0x00000000;
     cpu->ctr = 0x8000c000;
 }
@@ -198,6 +203,7 @@  static void cortex_m33_initfn(Object *obj)
 static void cortex_m55_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     set_feature(&cpu->env, ARM_FEATURE_V8);
     set_feature(&cpu->env, ARM_FEATURE_V8_1M);
@@ -221,13 +227,13 @@  static void cortex_m55_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x00000000;
     cpu->isar.id_mmfr2 = 0x01000000;
     cpu->isar.id_mmfr3 = 0x00000011;
-    cpu->isar.id_isar0 = 0x01103110;
-    cpu->isar.id_isar1 = 0x02212000;
-    cpu->isar.id_isar2 = 0x20232232;
-    cpu->isar.id_isar3 = 0x01111131;
-    cpu->isar.id_isar4 = 0x01310132;
-    cpu->isar.id_isar5 = 0x00000000;
-    cpu->isar.id_isar6 = 0x00000000;
+    SET_IDREG(idregs, ID_ISAR0, 0x01103110);
+    SET_IDREG(idregs, ID_ISAR1, 0x02212000);
+    SET_IDREG(idregs, ID_ISAR2, 0x20232232);
+    SET_IDREG(idregs, ID_ISAR3, 0x01111131);
+    SET_IDREG(idregs, ID_ISAR4, 0x01310132);
+    SET_IDREG(idregs, ID_ISAR5, 0x00000000);
+    SET_IDREG(idregs, ID_ISAR6, 0x00000000);
     cpu->clidr = 0x00000000; /* caches not implemented */
     cpu->ctr = 0x8303c003;
 }
diff --git a/target/arm/tcg/cpu32.c b/target/arm/tcg/cpu32.c
index 20c2737f17..ae5c909048 100644
--- a/target/arm/tcg/cpu32.c
+++ b/target/arm/tcg/cpu32.c
@@ -25,16 +25,16 @@  void aa32_max_features(ARMCPU *cpu)
     uint32_t t;
 
     /* Add additional features supported by QEMU */
-    t = cpu->isar.id_isar5;
+    t = GET_IDREG(&cpu->isar.idregs, ID_ISAR5);
     t = FIELD_DP32(t, ID_ISAR5, AES, 2);          /* FEAT_PMULL */
     t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);         /* FEAT_SHA1 */
     t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);         /* FEAT_SHA256 */
     t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
     t = FIELD_DP32(t, ID_ISAR5, RDM, 1);          /* FEAT_RDM */
     t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);         /* FEAT_FCMA */
-    cpu->isar.id_isar5 = t;
+    SET_IDREG(&cpu->isar.idregs, ID_ISAR5, t);
 
-    t = cpu->isar.id_isar6;
+    t = GET_IDREG(&cpu->isar.idregs, ID_ISAR6);
     t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);        /* FEAT_JSCVT */
     t = FIELD_DP32(t, ID_ISAR6, DP, 1);           /* Feat_DotProd */
     t = FIELD_DP32(t, ID_ISAR6, FHM, 1);          /* FEAT_FHM */
@@ -42,7 +42,7 @@  void aa32_max_features(ARMCPU *cpu)
     t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);      /* FEAT_SPECRES */
     t = FIELD_DP32(t, ID_ISAR6, BF16, 1);         /* FEAT_AA32BF16 */
     t = FIELD_DP32(t, ID_ISAR6, I8MM, 1);         /* FEAT_AA32I8MM */
-    cpu->isar.id_isar6 = t;
+    SET_IDREG(&cpu->isar.idregs, ID_ISAR6, t);
 
     t = cpu->isar.mvfr1;
     t = FIELD_DP32(t, MVFR1, FPHP, 3);            /* FEAT_FP16 */
@@ -140,7 +140,7 @@  static void arm926_initfn(Object *obj)
      * ARMv5 does not have the ID_ISAR registers, but we can still
      * set the field to indicate Jazelle support within QEMU.
      */
-    cpu->isar.id_isar1 = FIELD_DP32(cpu->isar.id_isar1, ID_ISAR1, JAZELLE, 1);
+    FIELD_DP32_IDREG(&cpu->isar.idregs, ID_ISAR1, JAZELLE, 1);
     /*
      * Similarly, we need to set MVFR0 fields to enable vfp and short vector
      * support even though ARMv5 doesn't have this register.
@@ -182,7 +182,7 @@  static void arm1026_initfn(Object *obj)
      * ARMv5 does not have the ID_ISAR registers, but we can still
      * set the field to indicate Jazelle support within QEMU.
      */
-    cpu->isar.id_isar1 = FIELD_DP32(cpu->isar.id_isar1, ID_ISAR1, JAZELLE, 1);
+    FIELD_DP32_IDREG(&cpu->isar.idregs, ID_ISAR1, JAZELLE, 1);
     /*
      * Similarly, we need to set MVFR0 fields to enable vfp and short vector
      * support even though ARMv5 doesn't have this register.
@@ -206,6 +206,7 @@  static void arm1026_initfn(Object *obj)
 static void arm1136_r2_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
     /*
      * What qemu calls "arm1136_r2" is actually the 1136 r0p2, ie an
      * older core than plain "arm1136". In particular this does not
@@ -233,17 +234,18 @@  static void arm1136_r2_initfn(Object *obj)
     cpu->isar.id_mmfr0 = 0x01130003;
     cpu->isar.id_mmfr1 = 0x10030302;
     cpu->isar.id_mmfr2 = 0x01222110;
-    cpu->isar.id_isar0 = 0x00140011;
-    cpu->isar.id_isar1 = 0x12002111;
-    cpu->isar.id_isar2 = 0x11231111;
-    cpu->isar.id_isar3 = 0x01102131;
-    cpu->isar.id_isar4 = 0x141;
+    SET_IDREG(idregs, ID_ISAR0, 0x00140011);
+    SET_IDREG(idregs, ID_ISAR1, 0x12002111);
+    SET_IDREG(idregs, ID_ISAR2, 0x11231111);
+    SET_IDREG(idregs, ID_ISAR3, 0x01102131);
+    SET_IDREG(idregs, ID_ISAR4, 0x141);
     cpu->reset_auxcr = 7;
 }
 
 static void arm1136_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     cpu->dtb_compatible = "arm,arm1136";
     set_feature(&cpu->env, ARM_FEATURE_V6K);
@@ -264,17 +266,18 @@  static void arm1136_initfn(Object *obj)
     cpu->isar.id_mmfr0 = 0x01130003;
     cpu->isar.id_mmfr1 = 0x10030302;
     cpu->isar.id_mmfr2 = 0x01222110;
-    cpu->isar.id_isar0 = 0x00140011;
-    cpu->isar.id_isar1 = 0x12002111;
-    cpu->isar.id_isar2 = 0x11231111;
-    cpu->isar.id_isar3 = 0x01102131;
-    cpu->isar.id_isar4 = 0x141;
+    SET_IDREG(idregs, ID_ISAR0, 0x00140011);
+    SET_IDREG(idregs, ID_ISAR1, 0x12002111);
+    SET_IDREG(idregs, ID_ISAR2, 0x11231111);
+    SET_IDREG(idregs, ID_ISAR3, 0x01102131);
+    SET_IDREG(idregs, ID_ISAR4, 0x141);
     cpu->reset_auxcr = 7;
 }
 
 static void arm1176_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     cpu->dtb_compatible = "arm,arm1176";
     set_feature(&cpu->env, ARM_FEATURE_V6K);
@@ -296,17 +299,18 @@  static void arm1176_initfn(Object *obj)
     cpu->isar.id_mmfr0 = 0x01130003;
     cpu->isar.id_mmfr1 = 0x10030302;
     cpu->isar.id_mmfr2 = 0x01222100;
-    cpu->isar.id_isar0 = 0x0140011;
-    cpu->isar.id_isar1 = 0x12002111;
-    cpu->isar.id_isar2 = 0x11231121;
-    cpu->isar.id_isar3 = 0x01102131;
-    cpu->isar.id_isar4 = 0x01141;
+    SET_IDREG(idregs, ID_ISAR0, 0x0140011);
+    SET_IDREG(idregs, ID_ISAR1, 0x12002111);
+    SET_IDREG(idregs, ID_ISAR2, 0x11231121);
+    SET_IDREG(idregs, ID_ISAR3, 0x01102131);
+    SET_IDREG(idregs, ID_ISAR4, 0x01141);
     cpu->reset_auxcr = 7;
 }
 
 static void arm11mpcore_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     cpu->dtb_compatible = "arm,arm11mpcore";
     set_feature(&cpu->env, ARM_FEATURE_V6K);
@@ -325,11 +329,11 @@  static void arm11mpcore_initfn(Object *obj)
     cpu->isar.id_mmfr0 = 0x01100103;
     cpu->isar.id_mmfr1 = 0x10020302;
     cpu->isar.id_mmfr2 = 0x01222000;
-    cpu->isar.id_isar0 = 0x00100011;
-    cpu->isar.id_isar1 = 0x12002111;
-    cpu->isar.id_isar2 = 0x11221011;
-    cpu->isar.id_isar3 = 0x01102131;
-    cpu->isar.id_isar4 = 0x141;
+    SET_IDREG(idregs, ID_ISAR0, 0x00100011);
+    SET_IDREG(idregs, ID_ISAR1, 0x12002111);
+    SET_IDREG(idregs, ID_ISAR2, 0x11221011);
+    SET_IDREG(idregs, ID_ISAR3, 0x01102131);
+    SET_IDREG(idregs, ID_ISAR4, 0x141);
     cpu->reset_auxcr = 1;
 }
 
@@ -343,6 +347,7 @@  static const ARMCPRegInfo cortexa8_cp_reginfo[] = {
 static void cortex_a8_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     cpu->dtb_compatible = "arm,cortex-a8";
     set_feature(&cpu->env, ARM_FEATURE_V7);
@@ -365,11 +370,11 @@  static void cortex_a8_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x20000000;
     cpu->isar.id_mmfr2 = 0x01202000;
     cpu->isar.id_mmfr3 = 0x11;
-    cpu->isar.id_isar0 = 0x00101111;
-    cpu->isar.id_isar1 = 0x12112111;
-    cpu->isar.id_isar2 = 0x21232031;
-    cpu->isar.id_isar3 = 0x11112131;
-    cpu->isar.id_isar4 = 0x00111142;
+    SET_IDREG(idregs, ID_ISAR0, 0x00101111);
+    SET_IDREG(idregs, ID_ISAR1, 0x12112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232031);
+    SET_IDREG(idregs, ID_ISAR3, 0x11112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00111142);
     cpu->isar.dbgdidr = 0x15141000;
     cpu->clidr = (1 << 27) | (2 << 24) | 3;
     cpu->ccsidr[0] = 0xe007e01a; /* 16k L1 dcache. */
@@ -412,6 +417,7 @@  static const ARMCPRegInfo cortexa9_cp_reginfo[] = {
 static void cortex_a9_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     cpu->dtb_compatible = "arm,cortex-a9";
     set_feature(&cpu->env, ARM_FEATURE_V7);
@@ -440,11 +446,11 @@  static void cortex_a9_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x20000000;
     cpu->isar.id_mmfr2 = 0x01230000;
     cpu->isar.id_mmfr3 = 0x00002111;
-    cpu->isar.id_isar0 = 0x00101111;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232041;
-    cpu->isar.id_isar3 = 0x11112131;
-    cpu->isar.id_isar4 = 0x00111142;
+    SET_IDREG(idregs, ID_ISAR0, 0x00101111);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232041);
+    SET_IDREG(idregs, ID_ISAR3, 0x11112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00111142);
     cpu->isar.dbgdidr = 0x35141000;
     cpu->clidr = (1 << 27) | (1 << 24) | 3;
     cpu->ccsidr[0] = 0xe00fe019; /* 16k L1 dcache. */
@@ -479,6 +485,7 @@  static const ARMCPRegInfo cortexa15_cp_reginfo[] = {
 static void cortex_a7_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     cpu->dtb_compatible = "arm,cortex-a7";
     set_feature(&cpu->env, ARM_FEATURE_V7VE);
@@ -509,11 +516,11 @@  static void cortex_a7_initfn(Object *obj)
      * a7_mpcore_r0p5_trm, page 4-4 gives 0x01101110; but
      * table 4-41 gives 0x02101110, which includes the arm div insns.
      */
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232041;
-    cpu->isar.id_isar3 = 0x11112131;
-    cpu->isar.id_isar4 = 0x10011142;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232041);
+    SET_IDREG(idregs, ID_ISAR3, 0x11112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x10011142);
     cpu->isar.dbgdidr = 0x3515f005;
     cpu->isar.dbgdevid = 0x01110f13;
     cpu->isar.dbgdevid1 = 0x1;
@@ -528,6 +535,7 @@  static void cortex_a7_initfn(Object *obj)
 static void cortex_a15_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     cpu->dtb_compatible = "arm,cortex-a15";
     set_feature(&cpu->env, ARM_FEATURE_V7VE);
@@ -556,11 +564,11 @@  static void cortex_a15_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x20000000;
     cpu->isar.id_mmfr2 = 0x01240000;
     cpu->isar.id_mmfr3 = 0x02102211;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232041;
-    cpu->isar.id_isar3 = 0x11112131;
-    cpu->isar.id_isar4 = 0x10011142;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232041);
+    SET_IDREG(idregs, ID_ISAR3, 0x11112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x10011142);
     cpu->isar.dbgdidr = 0x3515f021;
     cpu->isar.dbgdevid = 0x01110f13;
     cpu->isar.dbgdevid1 = 0x0;
@@ -585,6 +593,7 @@  static const ARMCPRegInfo cortexr5_cp_reginfo[] = {
 static void cortex_r5_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     set_feature(&cpu->env, ARM_FEATURE_V7);
     set_feature(&cpu->env, ARM_FEATURE_V7MP);
@@ -599,13 +608,13 @@  static void cortex_r5_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x00000000;
     cpu->isar.id_mmfr2 = 0x01200000;
     cpu->isar.id_mmfr3 = 0x0211;
-    cpu->isar.id_isar0 = 0x02101111;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232141;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x0010142;
-    cpu->isar.id_isar5 = 0x0;
-    cpu->isar.id_isar6 = 0x0;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101111);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232141);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x0010142);
+    SET_IDREG(idregs, ID_ISAR5, 0x21232141);
+    SET_IDREG(idregs, ID_ISAR6, 0x0);
     cpu->mp_is_up = true;
     cpu->pmsav7_dregion = 16;
     cpu->isar.reset_pmcr_el0 = 0x41151800;
@@ -720,6 +729,7 @@  static const ARMCPRegInfo cortex_r52_cp_reginfo[] = {
 static void cortex_r52_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     set_feature(&cpu->env, ARM_FEATURE_V8);
     set_feature(&cpu->env, ARM_FEATURE_EL2);
@@ -746,12 +756,12 @@  static void cortex_r52_initfn(Object *obj)
     cpu->isar.id_mmfr2 = 0x01200000;
     cpu->isar.id_mmfr3 = 0xf0102211;
     cpu->isar.id_mmfr4 = 0x00000010;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232142;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00010142;
-    cpu->isar.id_isar5 = 0x00010001;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232142);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00010142);
+    SET_IDREG(idregs, ID_ISAR5, 0x00010001);
     cpu->isar.dbgdidr = 0x77168000;
     cpu->clidr = (1 << 27) | (1 << 24) | 0x3;
     cpu->ccsidr[0] = 0x700fe01a; /* 32KB L1 dcache */
@@ -949,6 +959,7 @@  static void pxa270c5_initfn(Object *obj)
 static void arm_max_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
+    IdRegMap *idregs = &cpu->isar.idregs;
 
     /* aarch64_a57_initfn, advertising none of the aarch64 features */
     cpu->dtb_compatible = "arm,cortex-a57";
@@ -976,13 +987,13 @@  static void arm_max_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
     cpu->isar.id_mmfr3 = 0x02102211;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00011142;
-    cpu->isar.id_isar5 = 0x00011121;
-    cpu->isar.id_isar6 = 0;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00011142);
+    SET_IDREG(idregs, ID_ISAR5, 0x00011121);
+    SET_IDREG(idregs, ID_ISAR6, 0);
     cpu->isar.reset_pmcr_el0 = 0x41013000;
     cpu->clidr = 0x0a200023;
     cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
diff --git a/target/arm/tcg/cpu64.c b/target/arm/tcg/cpu64.c
index 611c252eae..cdaba9b184 100644
--- a/target/arm/tcg/cpu64.c
+++ b/target/arm/tcg/cpu64.c
@@ -83,12 +83,12 @@  static void aarch64_a35_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
     cpu->isar.id_mmfr3 = 0x02102211;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00011142;
-    cpu->isar.id_isar5 = 0x00011121;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00011142);
+    SET_IDREG(idregs, ID_ISAR5, 0x00011121);
     SET_IDREG(idregs, ID_AA64PFR0, 0x00002222);
     SET_IDREG(idregs, ID_AA64PFR1, 0);
     SET_IDREG(idregs, ID_AA64DFR0, 0x10305106);
@@ -252,13 +252,13 @@  static void aarch64_a55_initfn(Object *obj)
     SET_IDREG(idregs, ID_AA64PFR1, 0x0000000000000010ull);
     cpu->id_afr0       = 0x00000000;
     cpu->isar.id_dfr0  = 0x04010088;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00011142;
-    cpu->isar.id_isar5 = 0x01011121;
-    cpu->isar.id_isar6 = 0x00000010;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00011142);
+    SET_IDREG(idregs, ID_ISAR5, 0x01011121);
+    SET_IDREG(idregs, ID_ISAR6, 0x00000010);
     cpu->isar.id_mmfr0 = 0x10201105;
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
@@ -323,12 +323,12 @@  static void aarch64_a72_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
     cpu->isar.id_mmfr3 = 0x02102211;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00011142;
-    cpu->isar.id_isar5 = 0x00011121;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00011142);
+    SET_IDREG(idregs, ID_ISAR5, 0x00011121);
     SET_IDREG(idregs, ID_AA64PFR0, 0x00002222);
     SET_IDREG(idregs, ID_AA64DFR0, 0x10305106);
     SET_IDREG(idregs, ID_AA64ISAR0, 0x00011120);
@@ -379,13 +379,13 @@  static void aarch64_a76_initfn(Object *obj)
     SET_IDREG(idregs, ID_AA64PFR1, 0x0000000000000010ull);
     cpu->id_afr0       = 0x00000000;
     cpu->isar.id_dfr0  = 0x04010088;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00010142;
-    cpu->isar.id_isar5 = 0x01011121;
-    cpu->isar.id_isar6 = 0x00000010;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00010142);
+    SET_IDREG(idregs, ID_ISAR5, 0x01011121);
+    SET_IDREG(idregs, ID_ISAR6, 0x00000010);
     cpu->isar.id_mmfr0 = 0x10201105;
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
@@ -621,13 +621,13 @@  static void aarch64_neoverse_n1_initfn(Object *obj)
     SET_IDREG(idregs, ID_AA64PFR1, 0x0000000000000020ull);
     cpu->id_afr0       = 0x00000000;
     cpu->isar.id_dfr0  = 0x04010088;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00010142;
-    cpu->isar.id_isar5 = 0x01011121;
-    cpu->isar.id_isar6 = 0x00000010;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00010142);
+    SET_IDREG(idregs, ID_ISAR5, 0x01011121);
+    SET_IDREG(idregs, ID_ISAR6, 0x00000010);
     cpu->isar.id_mmfr0 = 0x10201105;
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
@@ -697,13 +697,13 @@  static void aarch64_neoverse_v1_initfn(Object *obj)
     SET_IDREG(idregs, ID_AA64PFR1, 0x0000000000000020ull);
     cpu->id_afr0       = 0x00000000;
     cpu->isar.id_dfr0  = 0x15011099;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00010142;
-    cpu->isar.id_isar5 = 0x11011121;
-    cpu->isar.id_isar6 = 0x01100111;
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00010142);
+    SET_IDREG(idregs, ID_ISAR5, 0x11011121);
+    SET_IDREG(idregs, ID_ISAR6, 0x01100111);
     cpu->isar.id_mmfr0 = 0x10201105;
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
@@ -915,14 +915,14 @@  static void aarch64_a710_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
     cpu->isar.id_mmfr3 = 0x02122211;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00010142;
-    cpu->isar.id_isar5 = 0x11011121; /* with Crypto */
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00010142);
+    SET_IDREG(idregs, ID_ISAR5, 0x11011121); /* with Crypto */
     cpu->isar.id_mmfr4 = 0x21021110;
-    cpu->isar.id_isar6 = 0x01111111;
+    SET_IDREG(idregs, ID_ISAR6, 0x01111111);
     cpu->isar.mvfr0    = 0x10110222;
     cpu->isar.mvfr1    = 0x13211111;
     cpu->isar.mvfr2    = 0x00000043;
@@ -1015,14 +1015,14 @@  static void aarch64_neoverse_n2_initfn(Object *obj)
     cpu->isar.id_mmfr1 = 0x40000000;
     cpu->isar.id_mmfr2 = 0x01260000;
     cpu->isar.id_mmfr3 = 0x02122211;
-    cpu->isar.id_isar0 = 0x02101110;
-    cpu->isar.id_isar1 = 0x13112111;
-    cpu->isar.id_isar2 = 0x21232042;
-    cpu->isar.id_isar3 = 0x01112131;
-    cpu->isar.id_isar4 = 0x00010142;
-    cpu->isar.id_isar5 = 0x11011121; /* with Crypto */
+    SET_IDREG(idregs, ID_ISAR0, 0x02101110);
+    SET_IDREG(idregs, ID_ISAR1, 0x13112111);
+    SET_IDREG(idregs, ID_ISAR2, 0x21232042);
+    SET_IDREG(idregs, ID_ISAR3, 0x01112131);
+    SET_IDREG(idregs, ID_ISAR4, 0x00010142);
+    SET_IDREG(idregs, ID_ISAR5, 0x11011121); /* with Crypto */
     cpu->isar.id_mmfr4 = 0x01021110;
-    cpu->isar.id_isar6 = 0x01111111;
+    SET_IDREG(idregs, ID_ISAR6, 0x01111111);
     cpu->isar.mvfr0    = 0x10110222;
     cpu->isar.mvfr1    = 0x13211111;
     cpu->isar.mvfr2    = 0x00000043;