xref: /qemu/target/arm/tcg/cpu64.c (revision 59b6b42cd3446862567637f3a7ab31d69c9bef51)

/*
 * QEMU AArch64 TCG CPUs
 *
 * Copyright (c) 2013 Linaro Ltd
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see
 * <http://www.gnu.org/licenses/gpl-2.0.html>
 */

#include "qemu/osdep.h"
#include "qapi/error.h"
#include "cpu.h"
#include "qemu/module.h"
#include "qapi/visitor.h"
#include "hw/qdev-properties.h"
#include "internals.h"
#include "cpregs.h"

static void aarch64_a35_initfn(Object *obj)
{
    ARMCPU *cpu = ARM_CPU(obj);

    cpu->dtb_compatible = "arm,cortex-a35";
    set_feature(&cpu->env, ARM_FEATURE_V8);
    set_feature(&cpu->env, ARM_FEATURE_NEON);
    set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
    set_feature(&cpu->env, ARM_FEATURE_AARCH64);
    set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
    set_feature(&cpu->env, ARM_FEATURE_EL2);
    set_feature(&cpu->env, ARM_FEATURE_EL3);
    set_feature(&cpu->env, ARM_FEATURE_PMU);

    /* From B2.2 AArch64 identification registers. */
    cpu->midr = 0x411fd040;
    cpu->revidr = 0;
    cpu->ctr = 0x84448004;
    cpu->isar.id_pfr0 = 0x00000131;
    cpu->isar.id_pfr1 = 0x00011011;
    cpu->isar.id_dfr0 = 0x03010066;
    cpu->id_afr0 = 0;
    cpu->isar.id_mmfr0 = 0x10201105;
    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_aa64pfr0 = 0x00002222;
    cpu->isar.id_aa64pfr1 = 0;
    cpu->isar.id_aa64dfr0 = 0x10305106;
    cpu->isar.id_aa64dfr1 = 0;
    cpu->isar.id_aa64isar0 = 0x00011120;
    cpu->isar.id_aa64isar1 = 0;
    cpu->isar.id_aa64mmfr0 = 0x00101122;
    cpu->isar.id_aa64mmfr1 = 0;
    cpu->clidr = 0x0a200023;
    cpu->dcz_blocksize = 4;

    /* From B2.4 AArch64 Virtual Memory control registers */
    cpu->reset_sctlr = 0x00c50838;

    /* From B2.10 AArch64 performance monitor registers */
    cpu->isar.reset_pmcr_el0 = 0x410a3000;

    /* From B2.29 Cache ID registers */
    cpu->ccsidr[0] = 0x700fe01a; /* 32KB L1 dcache */
    cpu->ccsidr[1] = 0x201fe00a; /* 32KB L1 icache */
    cpu->ccsidr[2] = 0x703fe03a; /* 512KB L2 cache */

    /* From B3.5 VGIC Type register */
    cpu->gic_num_lrs = 4;
    cpu->gic_vpribits = 5;
    cpu->gic_vprebits = 5;
    cpu->gic_pribits = 5;

    /* From C6.4 Debug ID Register */
    cpu->isar.dbgdidr = 0x3516d000;
    /* From C6.5 Debug Device ID Register */
    cpu->isar.dbgdevid = 0x00110f13;
    /* From C6.6 Debug Device ID Register 1 */
    cpu->isar.dbgdevid1 = 0x2;

    /* From Cortex-A35 SIMD and Floating-point Support r1p0 */
    /* From 3.2 AArch32 register summary */
    cpu->reset_fpsid = 0x41034043;

    /* From 2.2 AArch64 register summary */
    cpu->isar.mvfr0 = 0x10110222;
    cpu->isar.mvfr1 = 0x12111111;
    cpu->isar.mvfr2 = 0x00000043;

    /* These values are the same with A53/A57/A72. */
    define_cortex_a72_a57_a53_cp_reginfo(cpu);
}

static void cpu_max_get_sve_max_vq(Object *obj, Visitor *v, const char *name,
                                   void *opaque, Error **errp)
{
    ARMCPU *cpu = ARM_CPU(obj);
    uint32_t value;

    /* All vector lengths are disabled when SVE is off. */
    if (!cpu_isar_feature(aa64_sve, cpu)) {
        value = 0;
    } else {
        value = cpu->sve_max_vq;
    }
    visit_type_uint32(v, name, &value, errp);
}

static void cpu_max_set_sve_max_vq(Object *obj, Visitor *v, const char *name,
                                   void *opaque, Error **errp)
{
    ARMCPU *cpu = ARM_CPU(obj);
    uint32_t max_vq;

    if (!visit_type_uint32(v, name, &max_vq, errp)) {
        return;
    }

    if (max_vq == 0 || max_vq > ARM_MAX_VQ) {
        error_setg(errp, "unsupported SVE vector length");
        error_append_hint(errp, "Valid sve-max-vq in range [1-%d]\n",
                          ARM_MAX_VQ);
        return;
    }

    cpu->sve_max_vq = max_vq;
}

static Property arm_cpu_lpa2_property =
    DEFINE_PROP_BOOL("lpa2", ARMCPU, prop_lpa2, true);

static void aarch64_a55_initfn(Object *obj)
{
    ARMCPU *cpu = ARM_CPU(obj);

    cpu->dtb_compatible = "arm,cortex-a55";
    set_feature(&cpu->env, ARM_FEATURE_V8);
    set_feature(&cpu->env, ARM_FEATURE_NEON);
    set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
    set_feature(&cpu->env, ARM_FEATURE_AARCH64);
    set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
    set_feature(&cpu->env, ARM_FEATURE_EL2);
    set_feature(&cpu->env, ARM_FEATURE_EL3);
    set_feature(&cpu->env, ARM_FEATURE_PMU);

    /* Ordered by B2.4 AArch64 registers by functional group */
    cpu->clidr = 0x82000023;
    cpu->ctr = 0x84448004; /* L1Ip = VIPT */
    cpu->dcz_blocksize = 4; /* 64 bytes */
    cpu->isar.id_aa64dfr0  = 0x0000000010305408ull;
    cpu->isar.id_aa64isar0 = 0x0000100010211120ull;
    cpu->isar.id_aa64isar1 = 0x0000000000100001ull;
    cpu->isar.id_aa64mmfr0 = 0x0000000000101122ull;
    cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull;
    cpu->isar.id_aa64mmfr2 = 0x0000000000001011ull;
    cpu->isar.id_aa64pfr0  = 0x0000000010112222ull;
    cpu->isar.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;
    cpu->isar.id_mmfr0 = 0x10201105;
    cpu->isar.id_mmfr1 = 0x40000000;
    cpu->isar.id_mmfr2 = 0x01260000;
    cpu->isar.id_mmfr3 = 0x02122211;
    cpu->isar.id_mmfr4 = 0x00021110;
    cpu->isar.id_pfr0  = 0x10010131;
    cpu->isar.id_pfr1  = 0x00011011;
    cpu->isar.id_pfr2  = 0x00000011;
    cpu->midr = 0x412FD050;          /* r2p0 */
    cpu->revidr = 0;

    /* From B2.23 CCSIDR_EL1 */
    cpu->ccsidr[0] = 0x700fe01a; /* 32KB L1 dcache */
    cpu->ccsidr[1] = 0x200fe01a; /* 32KB L1 icache */
    cpu->ccsidr[2] = 0x703fe07a; /* 512KB L2 cache */

    /* From B2.96 SCTLR_EL3 */
    cpu->reset_sctlr = 0x30c50838;

    /* From B4.45 ICH_VTR_EL2 */
    cpu->gic_num_lrs = 4;
    cpu->gic_vpribits = 5;
    cpu->gic_vprebits = 5;
    cpu->gic_pribits = 5;

    cpu->isar.mvfr0 = 0x10110222;
    cpu->isar.mvfr1 = 0x13211111;
    cpu->isar.mvfr2 = 0x00000043;

    /* From D5.4 AArch64 PMU register summary */
    cpu->isar.reset_pmcr_el0 = 0x410b3000;
}

static void aarch64_a72_initfn(Object *obj)
{
    ARMCPU *cpu = ARM_CPU(obj);

    cpu->dtb_compatible = "arm,cortex-a72";
    set_feature(&cpu->env, ARM_FEATURE_V8);
    set_feature(&cpu->env, ARM_FEATURE_NEON);
    set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
    set_feature(&cpu->env, ARM_FEATURE_AARCH64);
    set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
    set_feature(&cpu->env, ARM_FEATURE_EL2);
    set_feature(&cpu->env, ARM_FEATURE_EL3);
    set_feature(&cpu->env, ARM_FEATURE_PMU);
    cpu->midr = 0x410fd083;
    cpu->revidr = 0x00000000;
    cpu->reset_fpsid = 0x41034080;
    cpu->isar.mvfr0 = 0x10110222;
    cpu->isar.mvfr1 = 0x12111111;
    cpu->isar.mvfr2 = 0x00000043;
    cpu->ctr = 0x8444c004;
    cpu->reset_sctlr = 0x00c50838;
    cpu->isar.id_pfr0 = 0x00000131;
    cpu->isar.id_pfr1 = 0x00011011;
    cpu->isar.id_dfr0 = 0x03010066;
    cpu->id_afr0 = 0x00000000;
    cpu->isar.id_mmfr0 = 0x10201105;
    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_aa64pfr0 = 0x00002222;
    cpu->isar.id_aa64dfr0 = 0x10305106;
    cpu->isar.id_aa64isar0 = 0x00011120;
    cpu->isar.id_aa64mmfr0 = 0x00001124;
    cpu->isar.dbgdidr = 0x3516d000;
    cpu->isar.dbgdevid = 0x01110f13;
    cpu->isar.dbgdevid1 = 0x2;
    cpu->isar.reset_pmcr_el0 = 0x41023000;
    cpu->clidr = 0x0a200023;
    cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
    cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */
    cpu->ccsidr[2] = 0x707fe07a; /* 1MB L2 cache */
    cpu->dcz_blocksize = 4; /* 64 bytes */
    cpu->gic_num_lrs = 4;
    cpu->gic_vpribits = 5;
    cpu->gic_vprebits = 5;
    cpu->gic_pribits = 5;
    define_cortex_a72_a57_a53_cp_reginfo(cpu);
}

static void aarch64_a76_initfn(Object *obj)
{
    ARMCPU *cpu = ARM_CPU(obj);

    cpu->dtb_compatible = "arm,cortex-a76";
    set_feature(&cpu->env, ARM_FEATURE_V8);
    set_feature(&cpu->env, ARM_FEATURE_NEON);
    set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
    set_feature(&cpu->env, ARM_FEATURE_AARCH64);
    set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
    set_feature(&cpu->env, ARM_FEATURE_EL2);
    set_feature(&cpu->env, ARM_FEATURE_EL3);
    set_feature(&cpu->env, ARM_FEATURE_PMU);

    /* Ordered by B2.4 AArch64 registers by functional group */
    cpu->clidr = 0x82000023;
    cpu->ctr = 0x8444C004;
    cpu->dcz_blocksize = 4;
    cpu->isar.id_aa64dfr0  = 0x0000000010305408ull;
    cpu->isar.id_aa64isar0 = 0x0000100010211120ull;
    cpu->isar.id_aa64isar1 = 0x0000000000100001ull;
    cpu->isar.id_aa64mmfr0 = 0x0000000000101122ull;
    cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull;
    cpu->isar.id_aa64mmfr2 = 0x0000000000001011ull;
    cpu->isar.id_aa64pfr0  = 0x1100000010111112ull; /* GIC filled in later */
    cpu->isar.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;
    cpu->isar.id_mmfr0 = 0x10201105;
    cpu->isar.id_mmfr1 = 0x40000000;
    cpu->isar.id_mmfr2 = 0x01260000;
    cpu->isar.id_mmfr3 = 0x02122211;
    cpu->isar.id_mmfr4 = 0x00021110;
    cpu->isar.id_pfr0  = 0x10010131;
    cpu->isar.id_pfr1  = 0x00010000; /* GIC filled in later */
    cpu->isar.id_pfr2  = 0x00000011;
    cpu->midr = 0x414fd0b1;          /* r4p1 */
    cpu->revidr = 0;

    /* From B2.18 CCSIDR_EL1 */
    cpu->ccsidr[0] = 0x701fe01a; /* 64KB L1 dcache */
    cpu->ccsidr[1] = 0x201fe01a; /* 64KB L1 icache */
    cpu->ccsidr[2] = 0x707fe03a; /* 512KB L2 cache */

    /* From B2.93 SCTLR_EL3 */
    cpu->reset_sctlr = 0x30c50838;

    /* From B4.23 ICH_VTR_EL2 */
    cpu->gic_num_lrs = 4;
    cpu->gic_vpribits = 5;
    cpu->gic_vprebits = 5;
    cpu->gic_pribits = 5;

    /* From B5.1 AdvSIMD AArch64 register summary */
    cpu->isar.mvfr0 = 0x10110222;
    cpu->isar.mvfr1 = 0x13211111;
    cpu->isar.mvfr2 = 0x00000043;

    /* From D5.1 AArch64 PMU register summary */
    cpu->isar.reset_pmcr_el0 = 0x410b3000;
}

static void aarch64_a64fx_initfn(Object *obj)
{
    ARMCPU *cpu = ARM_CPU(obj);

    cpu->dtb_compatible = "arm,a64fx";
    set_feature(&cpu->env, ARM_FEATURE_V8);
    set_feature(&cpu->env, ARM_FEATURE_NEON);
    set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
    set_feature(&cpu->env, ARM_FEATURE_AARCH64);
    set_feature(&cpu->env, ARM_FEATURE_EL2);
    set_feature(&cpu->env, ARM_FEATURE_EL3);
    set_feature(&cpu->env, ARM_FEATURE_PMU);
    cpu->midr = 0x461f0010;
    cpu->revidr = 0x00000000;
    cpu->ctr = 0x86668006;
    cpu->reset_sctlr = 0x30000180;
    cpu->isar.id_aa64pfr0 =   0x0000000101111111; /* No RAS Extensions */
    cpu->isar.id_aa64pfr1 = 0x0000000000000000;
    cpu->isar.id_aa64dfr0 = 0x0000000010305408;
    cpu->isar.id_aa64dfr1 = 0x0000000000000000;
    cpu->id_aa64afr0 = 0x0000000000000000;
    cpu->id_aa64afr1 = 0x0000000000000000;
    cpu->isar.id_aa64mmfr0 = 0x0000000000001122;
    cpu->isar.id_aa64mmfr1 = 0x0000000011212100;
    cpu->isar.id_aa64mmfr2 = 0x0000000000001011;
    cpu->isar.id_aa64isar0 = 0x0000000010211120;
    cpu->isar.id_aa64isar1 = 0x0000000000010001;
    cpu->isar.id_aa64zfr0 = 0x0000000000000000;
    cpu->clidr = 0x0000000080000023;
    cpu->ccsidr[0] = 0x7007e01c; /* 64KB L1 dcache */
    cpu->ccsidr[1] = 0x2007e01c; /* 64KB L1 icache */
    cpu->ccsidr[2] = 0x70ffe07c; /* 8MB L2 cache */
    cpu->dcz_blocksize = 6; /* 256 bytes */
    cpu->gic_num_lrs = 4;
    cpu->gic_vpribits = 5;
    cpu->gic_vprebits = 5;
    cpu->gic_pribits = 5;

    /* The A64FX supports only 128, 256 and 512 bit vector lengths */
    aarch64_add_sve_properties(obj);
    cpu->sve_vq.supported = (1 << 0)  /* 128bit */
                          | (1 << 1)  /* 256bit */
                          | (1 << 3); /* 512bit */

    cpu->isar.reset_pmcr_el0 = 0x46014040;

    /* TODO:  Add A64FX specific HPC extension registers */
}

static const ARMCPRegInfo neoverse_n1_cp_reginfo[] = {
    { .name = "ATCR_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 7, .opc2 = 0,
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "ATCR_EL2", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 4, .crn = 15, .crm = 7, .opc2 = 0,
      .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "ATCR_EL3", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 6, .crn = 15, .crm = 7, .opc2 = 0,
      .access = PL3_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "ATCR_EL12", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 5, .crn = 15, .crm = 7, .opc2 = 0,
      .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "AVTCR_EL2", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 4, .crn = 15, .crm = 7, .opc2 = 1,
      .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "CPUACTLR_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 1, .opc2 = 0,
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "CPUACTLR2_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 1, .opc2 = 1,
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "CPUACTLR3_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 1, .opc2 = 2,
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    /*
     * Report CPUCFR_EL1.SCU as 1, as we do not implement the DSU
     * (and in particular its system registers).
     */
    { .name = "CPUCFR_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 0, .opc2 = 0,
      .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 4 },
    { .name = "CPUECTLR_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 1, .opc2 = 4,
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0x961563010 },
    { .name = "CPUPCR_EL3", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 6, .crn = 15, .crm = 8, .opc2 = 1,
      .access = PL3_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "CPUPMR_EL3", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 6, .crn = 15, .crm = 8, .opc2 = 3,
      .access = PL3_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "CPUPOR_EL3", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 6, .crn = 15, .crm = 8, .opc2 = 2,
      .access = PL3_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "CPUPSELR_EL3", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 6, .crn = 15, .crm = 8, .opc2 = 0,
      .access = PL3_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "CPUPWRCTLR_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 2, .opc2 = 7,
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "ERXPFGCDN_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 2, .opc2 = 2,
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "ERXPFGCTL_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 2, .opc2 = 1,
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
    { .name = "ERXPFGF_EL1", .state = ARM_CP_STATE_AA64,
      .opc0 = 3, .opc1 = 0, .crn = 15, .crm = 2, .opc2 = 0,
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
};

static void define_neoverse_n1_cp_reginfo(ARMCPU *cpu)
{
    define_arm_cp_regs(cpu, neoverse_n1_cp_reginfo);
}

static void aarch64_neoverse_n1_initfn(Object *obj)
{
    ARMCPU *cpu = ARM_CPU(obj);

    cpu->dtb_compatible = "arm,neoverse-n1";
    set_feature(&cpu->env, ARM_FEATURE_V8);
    set_feature(&cpu->env, ARM_FEATURE_NEON);
    set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
    set_feature(&cpu->env, ARM_FEATURE_AARCH64);
    set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
    set_feature(&cpu->env, ARM_FEATURE_EL2);
    set_feature(&cpu->env, ARM_FEATURE_EL3);
    set_feature(&cpu->env, ARM_FEATURE_PMU);

    /* Ordered by B2.4 AArch64 registers by functional group */
    cpu->clidr = 0x82000023;
    cpu->ctr = 0x8444c004;
    cpu->dcz_blocksize = 4;
    cpu->isar.id_aa64dfr0  = 0x0000000110305408ull;
    cpu->isar.id_aa64isar0 = 0x0000100010211120ull;
    cpu->isar.id_aa64isar1 = 0x0000000000100001ull;
    cpu->isar.id_aa64mmfr0 = 0x0000000000101125ull;
    cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull;
    cpu->isar.id_aa64mmfr2 = 0x0000000000001011ull;
    cpu->isar.id_aa64pfr0  = 0x1100000010111112ull; /* GIC filled in later */
    cpu->isar.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;
    cpu->isar.id_mmfr0 = 0x10201105;
    cpu->isar.id_mmfr1 = 0x40000000;
    cpu->isar.id_mmfr2 = 0x01260000;
    cpu->isar.id_mmfr3 = 0x02122211;
    cpu->isar.id_mmfr4 = 0x00021110;
    cpu->isar.id_pfr0  = 0x10010131;
    cpu->isar.id_pfr1  = 0x00010000; /* GIC filled in later */
    cpu->isar.id_pfr2  = 0x00000011;
    cpu->midr = 0x414fd0c1;          /* r4p1 */
    cpu->revidr = 0;

    /* From B2.23 CCSIDR_EL1 */
    cpu->ccsidr[0] = 0x701fe01a; /* 64KB L1 dcache */
    cpu->ccsidr[1] = 0x201fe01a; /* 64KB L1 icache */
    cpu->ccsidr[2] = 0x70ffe03a; /* 1MB L2 cache */

    /* From B2.98 SCTLR_EL3 */
    cpu->reset_sctlr = 0x30c50838;

    /* From B4.23 ICH_VTR_EL2 */
    cpu->gic_num_lrs = 4;
    cpu->gic_vpribits = 5;
    cpu->gic_vprebits = 5;
    cpu->gic_pribits = 5;

    /* From B5.1 AdvSIMD AArch64 register summary */
    cpu->isar.mvfr0 = 0x10110222;
    cpu->isar.mvfr1 = 0x13211111;
    cpu->isar.mvfr2 = 0x00000043;

    /* From D5.1 AArch64 PMU register summary */
    cpu->isar.reset_pmcr_el0 = 0x410c3000;

    define_neoverse_n1_cp_reginfo(cpu);
}

/*
 * -cpu max: a CPU with as many features enabled as our emulation supports.
 * The version of '-cpu max' for qemu-system-arm is defined in cpu32.c;
 * this only needs to handle 64 bits.
 */
void aarch64_max_tcg_initfn(Object *obj)
{
    ARMCPU *cpu = ARM_CPU(obj);
    uint64_t t;
    uint32_t u;

    /*
     * Reset MIDR so the guest doesn't mistake our 'max' CPU type for a real
     * one and try to apply errata workarounds or use impdef features we
     * don't provide.
     * An IMPLEMENTER field of 0 means "reserved for software use";
     * ARCHITECTURE must be 0xf indicating "v7 or later, check ID registers
     * to see which features are present";
     * the VARIANT, PARTNUM and REVISION fields are all implementation
     * defined and we choose to define PARTNUM just in case guest
     * code needs to distinguish this QEMU CPU from other software
     * implementations, though this shouldn't be needed.
     */
    t = FIELD_DP64(0, MIDR_EL1, IMPLEMENTER, 0);
    t = FIELD_DP64(t, MIDR_EL1, ARCHITECTURE, 0xf);
    t = FIELD_DP64(t, MIDR_EL1, PARTNUM, 'Q');
    t = FIELD_DP64(t, MIDR_EL1, VARIANT, 0);
    t = FIELD_DP64(t, MIDR_EL1, REVISION, 0);
    cpu->midr = t;

    /*
     * We're going to set FEAT_S2FWB, which mandates that CLIDR_EL1.{LoUU,LoUIS}
     * are zero.
     */
    u = cpu->clidr;
    u = FIELD_DP32(u, CLIDR_EL1, LOUIS, 0);
    u = FIELD_DP32(u, CLIDR_EL1, LOUU, 0);
    cpu->clidr = u;

    t = cpu->isar.id_aa64isar0;
    t = FIELD_DP64(t, ID_AA64ISAR0, AES, 2);      /* FEAT_PMULL */
    t = FIELD_DP64(t, ID_AA64ISAR0, SHA1, 1);     /* FEAT_SHA1 */
    t = FIELD_DP64(t, ID_AA64ISAR0, SHA2, 2);     /* FEAT_SHA512 */
    t = FIELD_DP64(t, ID_AA64ISAR0, CRC32, 1);
    t = FIELD_DP64(t, ID_AA64ISAR0, ATOMIC, 2);   /* FEAT_LSE */
    t = FIELD_DP64(t, ID_AA64ISAR0, RDM, 1);      /* FEAT_RDM */
    t = FIELD_DP64(t, ID_AA64ISAR0, SHA3, 1);     /* FEAT_SHA3 */
    t = FIELD_DP64(t, ID_AA64ISAR0, SM3, 1);      /* FEAT_SM3 */
    t = FIELD_DP64(t, ID_AA64ISAR0, SM4, 1);      /* FEAT_SM4 */
    t = FIELD_DP64(t, ID_AA64ISAR0, DP, 1);       /* FEAT_DotProd */
    t = FIELD_DP64(t, ID_AA64ISAR0, FHM, 1);      /* FEAT_FHM */
    t = FIELD_DP64(t, ID_AA64ISAR0, TS, 2);       /* FEAT_FlagM2 */
    t = FIELD_DP64(t, ID_AA64ISAR0, TLB, 2);      /* FEAT_TLBIRANGE */
    t = FIELD_DP64(t, ID_AA64ISAR0, RNDR, 1);     /* FEAT_RNG */
    cpu->isar.id_aa64isar0 = t;

    t = cpu->isar.id_aa64isar1;
    t = FIELD_DP64(t, ID_AA64ISAR1, DPB, 2);      /* FEAT_DPB2 */
    t = FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 1);    /* FEAT_JSCVT */
    t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 1);     /* FEAT_FCMA */
    t = FIELD_DP64(t, ID_AA64ISAR1, LRCPC, 2);    /* FEAT_LRCPC2 */
    t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 1);  /* FEAT_FRINTTS */
    t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1);       /* FEAT_SB */
    t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1);  /* FEAT_SPECRES */
    t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 1);     /* FEAT_BF16 */
    t = FIELD_DP64(t, ID_AA64ISAR1, DGH, 1);      /* FEAT_DGH */
    t = FIELD_DP64(t, ID_AA64ISAR1, I8MM, 1);     /* FEAT_I8MM */
    cpu->isar.id_aa64isar1 = t;

    t = cpu->isar.id_aa64pfr0;
    t = FIELD_DP64(t, ID_AA64PFR0, FP, 1);        /* FEAT_FP16 */
    t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1);   /* FEAT_FP16 */
    t = FIELD_DP64(t, ID_AA64PFR0, RAS, 2);       /* FEAT_RASv1p1 + FEAT_DoubleFault */
    t = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
    t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1);      /* FEAT_SEL2 */
    t = FIELD_DP64(t, ID_AA64PFR0, DIT, 1);       /* FEAT_DIT */
    t = FIELD_DP64(t, ID_AA64PFR0, CSV2, 2);      /* FEAT_CSV2_2 */
    t = FIELD_DP64(t, ID_AA64PFR0, CSV3, 1);      /* FEAT_CSV3 */
    cpu->isar.id_aa64pfr0 = t;

    t = cpu->isar.id_aa64pfr1;
    t = FIELD_DP64(t, ID_AA64PFR1, BT, 1);        /* FEAT_BTI */
    t = FIELD_DP64(t, ID_AA64PFR1, SSBS, 2);      /* FEAT_SSBS2 */
    /*
     * Begin with full support for MTE. This will be downgraded to MTE=0
     * during realize if the board provides no tag memory, much like
     * we do for EL2 with the virtualization=on property.
     */
    t = FIELD_DP64(t, ID_AA64PFR1, MTE, 3);       /* FEAT_MTE3 */
    t = FIELD_DP64(t, ID_AA64PFR1, RAS_FRAC, 0);  /* FEAT_RASv1p1 + FEAT_DoubleFault */
    t = FIELD_DP64(t, ID_AA64PFR1, SME, 1);       /* FEAT_SME */
    t = FIELD_DP64(t, ID_AA64PFR1, CSV2_FRAC, 0); /* FEAT_CSV2_2 */
    cpu->isar.id_aa64pfr1 = t;

    t = cpu->isar.id_aa64mmfr0;
    t = FIELD_DP64(t, ID_AA64MMFR0, PARANGE, 6); /* FEAT_LPA: 52 bits */
    t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN16, 1);   /* 16k pages supported */
    t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN16_2, 2); /* 16k stage2 supported */
    t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN64_2, 2); /* 64k stage2 supported */
    t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN4_2, 2);  /*  4k stage2 supported */
    t = FIELD_DP64(t, ID_AA64MMFR0, FGT, 1);       /* FEAT_FGT */
    cpu->isar.id_aa64mmfr0 = t;

    t = cpu->isar.id_aa64mmfr1;
    t = FIELD_DP64(t, ID_AA64MMFR1, HAFDBS, 2);   /* FEAT_HAFDBS */
    t = FIELD_DP64(t, ID_AA64MMFR1, VMIDBITS, 2); /* FEAT_VMID16 */
    t = FIELD_DP64(t, ID_AA64MMFR1, VH, 1);       /* FEAT_VHE */
    t = FIELD_DP64(t, ID_AA64MMFR1, HPDS, 1);     /* FEAT_HPDS */
    t = FIELD_DP64(t, ID_AA64MMFR1, LO, 1);       /* FEAT_LOR */
    t = FIELD_DP64(t, ID_AA64MMFR1, PAN, 3);      /* FEAT_PAN3 */
    t = FIELD_DP64(t, ID_AA64MMFR1, XNX, 1);      /* FEAT_XNX */
    t = FIELD_DP64(t, ID_AA64MMFR1, ETS, 1);      /* FEAT_ETS */
    t = FIELD_DP64(t, ID_AA64MMFR1, HCX, 1);      /* FEAT_HCX */
    cpu->isar.id_aa64mmfr1 = t;

    t = cpu->isar.id_aa64mmfr2;
    t = FIELD_DP64(t, ID_AA64MMFR2, CNP, 1);      /* FEAT_TTCNP */
    t = FIELD_DP64(t, ID_AA64MMFR2, UAO, 1);      /* FEAT_UAO */
    t = FIELD_DP64(t, ID_AA64MMFR2, IESB, 1);     /* FEAT_IESB */
    t = FIELD_DP64(t, ID_AA64MMFR2, VARANGE, 1);  /* FEAT_LVA */
    t = FIELD_DP64(t, ID_AA64MMFR2, ST, 1);       /* FEAT_TTST */
    t = FIELD_DP64(t, ID_AA64MMFR2, AT, 1);       /* FEAT_LSE2 */
    t = FIELD_DP64(t, ID_AA64MMFR2, IDS, 1);      /* FEAT_IDST */
    t = FIELD_DP64(t, ID_AA64MMFR2, FWB, 1);      /* FEAT_S2FWB */
    t = FIELD_DP64(t, ID_AA64MMFR2, TTL, 1);      /* FEAT_TTL */
    t = FIELD_DP64(t, ID_AA64MMFR2, BBM, 2);      /* FEAT_BBM at level 2 */
    t = FIELD_DP64(t, ID_AA64MMFR2, EVT, 2);      /* FEAT_EVT */
    t = FIELD_DP64(t, ID_AA64MMFR2, E0PD, 1);     /* FEAT_E0PD */
    cpu->isar.id_aa64mmfr2 = t;

    t = cpu->isar.id_aa64zfr0;
    t = FIELD_DP64(t, ID_AA64ZFR0, SVEVER, 1);
    t = FIELD_DP64(t, ID_AA64ZFR0, AES, 2);       /* FEAT_SVE_PMULL128 */
    t = FIELD_DP64(t, ID_AA64ZFR0, BITPERM, 1);   /* FEAT_SVE_BitPerm */
    t = FIELD_DP64(t, ID_AA64ZFR0, BFLOAT16, 1);  /* FEAT_BF16 */
    t = FIELD_DP64(t, ID_AA64ZFR0, SHA3, 1);      /* FEAT_SVE_SHA3 */
    t = FIELD_DP64(t, ID_AA64ZFR0, SM4, 1);       /* FEAT_SVE_SM4 */
    t = FIELD_DP64(t, ID_AA64ZFR0, I8MM, 1);      /* FEAT_I8MM */
    t = FIELD_DP64(t, ID_AA64ZFR0, F32MM, 1);     /* FEAT_F32MM */
    t = FIELD_DP64(t, ID_AA64ZFR0, F64MM, 1);     /* FEAT_F64MM */
    cpu->isar.id_aa64zfr0 = t;

    t = cpu->isar.id_aa64dfr0;
    t = FIELD_DP64(t, ID_AA64DFR0, DEBUGVER, 9);  /* FEAT_Debugv8p4 */
    t = FIELD_DP64(t, ID_AA64DFR0, PMUVER, 6);    /* FEAT_PMUv3p5 */
    cpu->isar.id_aa64dfr0 = t;

    t = cpu->isar.id_aa64smfr0;
    t = FIELD_DP64(t, ID_AA64SMFR0, F32F32, 1);   /* FEAT_SME */
    t = FIELD_DP64(t, ID_AA64SMFR0, B16F32, 1);   /* FEAT_SME */
    t = FIELD_DP64(t, ID_AA64SMFR0, F16F32, 1);   /* FEAT_SME */
    t = FIELD_DP64(t, ID_AA64SMFR0, I8I32, 0xf);  /* FEAT_SME */
    t = FIELD_DP64(t, ID_AA64SMFR0, F64F64, 1);   /* FEAT_SME_F64F64 */
    t = FIELD_DP64(t, ID_AA64SMFR0, I16I64, 0xf); /* FEAT_SME_I16I64 */
    t = FIELD_DP64(t, ID_AA64SMFR0, FA64, 1);     /* FEAT_SME_FA64 */
    cpu->isar.id_aa64smfr0 = t;

    /* Replicate the same data to the 32-bit id registers.  */
    aa32_max_features(cpu);

#ifdef CONFIG_USER_ONLY
    /*
     * For usermode -cpu max we can use a larger and more efficient DCZ
     * blocksize since we don't have to follow what the hardware does.
     */
    cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */
    cpu->dcz_blocksize = 7; /*  512 bytes */
#endif

    cpu->sve_vq.supported = MAKE_64BIT_MASK(0, ARM_MAX_VQ);
    cpu->sme_vq.supported = SVE_VQ_POW2_MAP;

    aarch64_add_pauth_properties(obj);
    aarch64_add_sve_properties(obj);
    aarch64_add_sme_properties(obj);
    object_property_add(obj, "sve-max-vq", "uint32", cpu_max_get_sve_max_vq,
                        cpu_max_set_sve_max_vq, NULL, NULL);
    qdev_property_add_static(DEVICE(obj), &arm_cpu_lpa2_property);
}

static const ARMCPUInfo aarch64_cpus[] = {
    { .name = "cortex-a35",         .initfn = aarch64_a35_initfn },
    { .name = "cortex-a55",         .initfn = aarch64_a55_initfn },
    { .name = "cortex-a72",         .initfn = aarch64_a72_initfn },
    { .name = "cortex-a76",         .initfn = aarch64_a76_initfn },
    { .name = "a64fx",              .initfn = aarch64_a64fx_initfn },
    { .name = "neoverse-n1",        .initfn = aarch64_neoverse_n1_initfn },
};

static void aarch64_cpu_register_types(void)
{
    size_t i;

    for (i = 0; i < ARRAY_SIZE(aarch64_cpus); ++i) {
        aarch64_cpu_register(&aarch64_cpus[i]);
    }
}

type_init(aarch64_cpu_register_types)