| /* |
| * QEMU RISC-V CPU |
| * |
| * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu |
| * Copyright (c) 2017-2018 SiFive, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2 or later, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope 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/>. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/qemu-print.h" |
| #include "qemu/ctype.h" |
| #include "qemu/log.h" |
| #include "cpu.h" |
| #include "internals.h" |
| #include "exec/exec-all.h" |
| #include "qapi/error.h" |
| #include "qemu/error-report.h" |
| #include "hw/qdev-properties.h" |
| #include "migration/vmstate.h" |
| #include "fpu/softfloat-helpers.h" |
| |
| /* RISC-V CPU definitions */ |
| |
| static const char riscv_exts[26] = "IEMAFDQCLBJTPVNSUHKORWXYZG"; |
| |
| const char * const riscv_int_regnames[] = { |
| "x0/zero", "x1/ra", "x2/sp", "x3/gp", "x4/tp", "x5/t0", "x6/t1", |
| "x7/t2", "x8/s0", "x9/s1", "x10/a0", "x11/a1", "x12/a2", "x13/a3", |
| "x14/a4", "x15/a5", "x16/a6", "x17/a7", "x18/s2", "x19/s3", "x20/s4", |
| "x21/s5", "x22/s6", "x23/s7", "x24/s8", "x25/s9", "x26/s10", "x27/s11", |
| "x28/t3", "x29/t4", "x30/t5", "x31/t6" |
| }; |
| |
| const char * const riscv_fpr_regnames[] = { |
| "f0/ft0", "f1/ft1", "f2/ft2", "f3/ft3", "f4/ft4", "f5/ft5", |
| "f6/ft6", "f7/ft7", "f8/fs0", "f9/fs1", "f10/fa0", "f11/fa1", |
| "f12/fa2", "f13/fa3", "f14/fa4", "f15/fa5", "f16/fa6", "f17/fa7", |
| "f18/fs2", "f19/fs3", "f20/fs4", "f21/fs5", "f22/fs6", "f23/fs7", |
| "f24/fs8", "f25/fs9", "f26/fs10", "f27/fs11", "f28/ft8", "f29/ft9", |
| "f30/ft10", "f31/ft11" |
| }; |
| |
| const char * const riscv_excp_names[] = { |
| "misaligned_fetch", |
| "fault_fetch", |
| "illegal_instruction", |
| "breakpoint", |
| "misaligned_load", |
| "fault_load", |
| "misaligned_store", |
| "fault_store", |
| "user_ecall", |
| "supervisor_ecall", |
| "hypervisor_ecall", |
| "machine_ecall", |
| "exec_page_fault", |
| "load_page_fault", |
| "reserved", |
| "store_page_fault", |
| "reserved", |
| "reserved", |
| "reserved", |
| "reserved", |
| "guest_exec_page_fault", |
| "guest_load_page_fault", |
| "reserved", |
| "guest_store_page_fault", |
| }; |
| |
| const char * const riscv_intr_names[] = { |
| "u_software", |
| "s_software", |
| "vs_software", |
| "m_software", |
| "u_timer", |
| "s_timer", |
| "vs_timer", |
| "m_timer", |
| "u_external", |
| "s_external", |
| "vs_external", |
| "m_external", |
| "reserved", |
| "reserved", |
| "reserved", |
| "reserved" |
| }; |
| |
| const char *riscv_cpu_get_trap_name(target_ulong cause, bool async) |
| { |
| if (async) { |
| return (cause < ARRAY_SIZE(riscv_intr_names)) ? |
| riscv_intr_names[cause] : "(unknown)"; |
| } else { |
| return (cause < ARRAY_SIZE(riscv_excp_names)) ? |
| riscv_excp_names[cause] : "(unknown)"; |
| } |
| } |
| |
| 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; |
| } |
| |
| static void set_priv_version(CPURISCVState *env, int priv_ver) |
| { |
| env->priv_ver = priv_ver; |
| } |
| |
| static void set_vext_version(CPURISCVState *env, int vext_ver) |
| { |
| env->vext_ver = vext_ver; |
| } |
| |
| static void set_feature(CPURISCVState *env, int feature) |
| { |
| env->features |= (1ULL << feature); |
| } |
| |
| static void set_resetvec(CPURISCVState *env, target_ulong resetvec) |
| { |
| #ifndef CONFIG_USER_ONLY |
| env->resetvec = resetvec; |
| #endif |
| } |
| |
| static void riscv_any_cpu_init(Object *obj) |
| { |
| CPURISCVState *env = &RISCV_CPU(obj)->env; |
| #if defined(TARGET_RISCV32) |
| set_misa(env, RV32 | RVI | RVM | RVA | RVF | RVD | RVC | RVU); |
| #elif defined(TARGET_RISCV64) |
| set_misa(env, RV64 | RVI | RVM | RVA | RVF | RVD | RVC | RVU); |
| #endif |
| set_priv_version(env, PRIV_VERSION_1_11_0); |
| } |
| |
| #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, RV64); |
| } |
| |
| static void rv64_sifive_u_cpu_init(Object *obj) |
| { |
| CPURISCVState *env = &RISCV_CPU(obj)->env; |
| set_misa(env, RV64 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); |
| set_priv_version(env, PRIV_VERSION_1_10_0); |
| } |
| |
| static void rv64_sifive_e_cpu_init(Object *obj) |
| { |
| CPURISCVState *env = &RISCV_CPU(obj)->env; |
| 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); |
| } |
| |
| 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) |
| { |
| CPURISCVState *env = &RISCV_CPU(obj)->env; |
| set_misa(env, RV32 | RVI | RVM | RVC | RVU); |
| set_priv_version(env, PRIV_VERSION_1_10_0); |
| qdev_prop_set_bit(DEVICE(obj), "mmu", false); |
| qdev_prop_set_bit(DEVICE(obj), "x-epmp", true); |
| } |
| |
| static void rv32_imafcu_nommu_cpu_init(Object *obj) |
| { |
| CPURISCVState *env = &RISCV_CPU(obj)->env; |
| set_misa(env, RV32 | RVI | RVM | RVA | RVF | RVC | RVU); |
| set_priv_version(env, PRIV_VERSION_1_10_0); |
| 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) |
| { |
| ObjectClass *oc; |
| char *typename; |
| char **cpuname; |
| |
| cpuname = g_strsplit(cpu_model, ",", 1); |
| typename = g_strdup_printf(RISCV_CPU_TYPE_NAME("%s"), cpuname[0]); |
| oc = object_class_by_name(typename); |
| g_strfreev(cpuname); |
| g_free(typename); |
| if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU) || |
| object_class_is_abstract(oc)) { |
| return NULL; |
| } |
| return oc; |
| } |
| |
| static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags) |
| { |
| RISCVCPU *cpu = RISCV_CPU(cs); |
| CPURISCVState *env = &cpu->env; |
| int i; |
| |
| #if !defined(CONFIG_USER_ONLY) |
| if (riscv_has_ext(env, RVH)) { |
| qemu_fprintf(f, " %s %d\n", "V = ", riscv_cpu_virt_enabled(env)); |
| } |
| #endif |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "pc ", env->pc); |
| #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); |
| 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 ", |
| (target_ulong)env->vsstatus); |
| } |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mip ", env->mip); |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mie ", env->mie); |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mideleg ", env->mideleg); |
| if (riscv_has_ext(env, RVH)) { |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "hideleg ", env->hideleg); |
| } |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "medeleg ", env->medeleg); |
| if (riscv_has_ext(env, RVH)) { |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "hedeleg ", env->hedeleg); |
| } |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mtvec ", env->mtvec); |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "stvec ", env->stvec); |
| if (riscv_has_ext(env, RVH)) { |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "vstvec ", env->vstvec); |
| } |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mepc ", env->mepc); |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "sepc ", env->sepc); |
| if (riscv_has_ext(env, RVH)) { |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "vsepc ", env->vsepc); |
| } |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mcause ", env->mcause); |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "scause ", env->scause); |
| if (riscv_has_ext(env, RVH)) { |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "vscause ", env->vscause); |
| } |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mtval ", env->mtval); |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "stval ", env->stval); |
| if (riscv_has_ext(env, RVH)) { |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "htval ", env->htval); |
| qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mtval2 ", env->mtval2); |
| } |
| #endif |
| |
| for (i = 0; i < 32; i++) { |
| qemu_fprintf(f, " %s " TARGET_FMT_lx, |
| riscv_int_regnames[i], env->gpr[i]); |
| if ((i & 3) == 3) { |
| qemu_fprintf(f, "\n"); |
| } |
| } |
| if (flags & CPU_DUMP_FPU) { |
| for (i = 0; i < 32; i++) { |
| qemu_fprintf(f, " %s %016" PRIx64, |
| riscv_fpr_regnames[i], env->fpr[i]); |
| if ((i & 3) == 3) { |
| qemu_fprintf(f, "\n"); |
| } |
| } |
| } |
| } |
| |
| static void riscv_cpu_set_pc(CPUState *cs, vaddr value) |
| { |
| RISCVCPU *cpu = RISCV_CPU(cs); |
| CPURISCVState *env = &cpu->env; |
| env->pc = value; |
| } |
| |
| static void riscv_cpu_synchronize_from_tb(CPUState *cs, |
| const TranslationBlock *tb) |
| { |
| RISCVCPU *cpu = RISCV_CPU(cs); |
| CPURISCVState *env = &cpu->env; |
| env->pc = tb->pc; |
| } |
| |
| static bool riscv_cpu_has_work(CPUState *cs) |
| { |
| #ifndef CONFIG_USER_ONLY |
| RISCVCPU *cpu = RISCV_CPU(cs); |
| CPURISCVState *env = &cpu->env; |
| /* |
| * Definition of the WFI instruction requires it to ignore the privilege |
| * mode and delegation registers, but respect individual enables |
| */ |
| return (env->mip & env->mie) != 0; |
| #else |
| return true; |
| #endif |
| } |
| |
| void restore_state_to_opc(CPURISCVState *env, TranslationBlock *tb, |
| target_ulong *data) |
| { |
| env->pc = data[0]; |
| } |
| |
| static void riscv_cpu_reset(DeviceState *dev) |
| { |
| CPUState *cs = CPU(dev); |
| RISCVCPU *cpu = RISCV_CPU(cs); |
| RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu); |
| CPURISCVState *env = &cpu->env; |
| |
| mcc->parent_reset(dev); |
| #ifndef CONFIG_USER_ONLY |
| env->priv = PRV_M; |
| env->mstatus &= ~(MSTATUS_MIE | MSTATUS_MPRV); |
| env->mcause = 0; |
| env->pc = env->resetvec; |
| env->two_stage_lookup = false; |
| #endif |
| cs->exception_index = RISCV_EXCP_NONE; |
| env->load_res = -1; |
| set_default_nan_mode(1, &env->fp_status); |
| } |
| |
| static void riscv_cpu_disas_set_info(CPUState *s, disassemble_info *info) |
| { |
| 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) |
| { |
| CPUState *cs = CPU(dev); |
| RISCVCPU *cpu = RISCV_CPU(dev); |
| CPURISCVState *env = &cpu->env; |
| 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 = env->misa; |
| Error *local_err = NULL; |
| |
| cpu_exec_realizefn(cs, &local_err); |
| if (local_err != NULL) { |
| error_propagate(errp, local_err); |
| return; |
| } |
| |
| if (cpu->cfg.priv_spec) { |
| if (!g_strcmp0(cpu->cfg.priv_spec, "v1.11.0")) { |
| priv_version = PRIV_VERSION_1_11_0; |
| } else if (!g_strcmp0(cpu->cfg.priv_spec, "v1.10.0")) { |
| priv_version = PRIV_VERSION_1_10_0; |
| } else { |
| error_setg(errp, |
| "Unsupported privilege spec version '%s'", |
| cpu->cfg.priv_spec); |
| return; |
| } |
| } |
| |
| set_priv_version(env, priv_version); |
| set_vext_version(env, vext_version); |
| |
| if (cpu->cfg.mmu) { |
| set_feature(env, RISCV_FEATURE_MMU); |
| } |
| |
| if (cpu->cfg.pmp) { |
| set_feature(env, RISCV_FEATURE_PMP); |
| |
| /* |
| * Enhanced PMP should only be available |
| * on harts with PMP support |
| */ |
| if (cpu->cfg.epmp) { |
| set_feature(env, RISCV_FEATURE_EPMP); |
| } |
| } |
| |
| set_resetvec(env, cpu->cfg.resetvec); |
| |
| /* 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, |
| "I and E extensions are incompatible"); |
| return; |
| } |
| |
| if (!cpu->cfg.ext_i && !cpu->cfg.ext_e) { |
| error_setg(errp, |
| "Either I or E extension must be set"); |
| return; |
| } |
| |
| if (cpu->cfg.ext_g && !(cpu->cfg.ext_i & cpu->cfg.ext_m & |
| cpu->cfg.ext_a & cpu->cfg.ext_f & |
| cpu->cfg.ext_d)) { |
| warn_report("Setting G will also set IMAFD"); |
| cpu->cfg.ext_i = true; |
| cpu->cfg.ext_m = true; |
| cpu->cfg.ext_a = true; |
| cpu->cfg.ext_f = true; |
| cpu->cfg.ext_d = true; |
| } |
| |
| /* Set the ISA extensions, checks should have happened above */ |
| if (cpu->cfg.ext_i) { |
| target_misa |= RVI; |
| } |
| if (cpu->cfg.ext_e) { |
| target_misa |= RVE; |
| } |
| if (cpu->cfg.ext_m) { |
| target_misa |= RVM; |
| } |
| if (cpu->cfg.ext_a) { |
| target_misa |= RVA; |
| } |
| if (cpu->cfg.ext_f) { |
| target_misa |= RVF; |
| } |
| if (cpu->cfg.ext_d) { |
| target_misa |= RVD; |
| } |
| if (cpu->cfg.ext_c) { |
| target_misa |= RVC; |
| } |
| if (cpu->cfg.ext_s) { |
| target_misa |= RVS; |
| } |
| if (cpu->cfg.ext_u) { |
| target_misa |= RVU; |
| } |
| if (cpu->cfg.ext_h) { |
| target_misa |= RVH; |
| } |
| if (cpu->cfg.ext_v) { |
| target_misa |= RVV; |
| if (!is_power_of_2(cpu->cfg.vlen)) { |
| error_setg(errp, |
| "Vector extension VLEN must be power of 2"); |
| return; |
| } |
| if (cpu->cfg.vlen > RV_VLEN_MAX || cpu->cfg.vlen < 128) { |
| error_setg(errp, |
| "Vector extension implementation only supports VLEN " |
| "in the range [128, %d]", RV_VLEN_MAX); |
| return; |
| } |
| if (!is_power_of_2(cpu->cfg.elen)) { |
| error_setg(errp, |
| "Vector extension ELEN must be power of 2"); |
| return; |
| } |
| if (cpu->cfg.elen > 64 || cpu->cfg.vlen < 8) { |
| error_setg(errp, |
| "Vector extension implementation only supports ELEN " |
| "in the range [8, 64]"); |
| return; |
| } |
| if (cpu->cfg.vext_spec) { |
| if (!g_strcmp0(cpu->cfg.vext_spec, "v0.7.1")) { |
| vext_version = VEXT_VERSION_0_07_1; |
| } else { |
| error_setg(errp, |
| "Unsupported vector spec version '%s'", |
| cpu->cfg.vext_spec); |
| return; |
| } |
| } else { |
| qemu_log("vector version is not specified, " |
| "use the default value v0.7.1\n"); |
| } |
| set_vext_version(env, vext_version); |
| } |
| |
| set_misa(env, target_misa); |
| } |
| |
| riscv_cpu_register_gdb_regs_for_features(cs); |
| |
| qemu_init_vcpu(cs); |
| cpu_reset(cs); |
| |
| mcc->parent_realize(dev, errp); |
| } |
| |
| static void riscv_cpu_init(Object *obj) |
| { |
| RISCVCPU *cpu = RISCV_CPU(obj); |
| |
| cpu_set_cpustate_pointers(cpu); |
| } |
| |
| static Property riscv_cpu_properties[] = { |
| DEFINE_PROP_BOOL("i", RISCVCPU, cfg.ext_i, true), |
| DEFINE_PROP_BOOL("e", RISCVCPU, cfg.ext_e, false), |
| DEFINE_PROP_BOOL("g", RISCVCPU, cfg.ext_g, true), |
| DEFINE_PROP_BOOL("m", RISCVCPU, cfg.ext_m, true), |
| DEFINE_PROP_BOOL("a", RISCVCPU, cfg.ext_a, true), |
| DEFINE_PROP_BOOL("f", RISCVCPU, cfg.ext_f, true), |
| DEFINE_PROP_BOOL("d", RISCVCPU, cfg.ext_d, true), |
| DEFINE_PROP_BOOL("c", RISCVCPU, cfg.ext_c, true), |
| DEFINE_PROP_BOOL("s", RISCVCPU, cfg.ext_s, true), |
| DEFINE_PROP_BOOL("u", RISCVCPU, cfg.ext_u, true), |
| /* This is experimental so mark with 'x-' */ |
| DEFINE_PROP_BOOL("x-h", RISCVCPU, cfg.ext_h, false), |
| DEFINE_PROP_BOOL("x-v", RISCVCPU, cfg.ext_v, false), |
| DEFINE_PROP_BOOL("Counters", RISCVCPU, cfg.ext_counters, true), |
| DEFINE_PROP_BOOL("Zifencei", RISCVCPU, cfg.ext_ifencei, true), |
| DEFINE_PROP_BOOL("Zicsr", RISCVCPU, cfg.ext_icsr, true), |
| DEFINE_PROP_STRING("priv_spec", RISCVCPU, cfg.priv_spec), |
| DEFINE_PROP_STRING("vext_spec", RISCVCPU, cfg.vext_spec), |
| DEFINE_PROP_UINT16("vlen", RISCVCPU, cfg.vlen, 128), |
| DEFINE_PROP_UINT16("elen", RISCVCPU, cfg.elen, 64), |
| DEFINE_PROP_BOOL("mmu", RISCVCPU, cfg.mmu, true), |
| DEFINE_PROP_BOOL("pmp", RISCVCPU, cfg.pmp, true), |
| DEFINE_PROP_BOOL("x-epmp", RISCVCPU, cfg.epmp, false), |
| |
| DEFINE_PROP_UINT64("resetvec", RISCVCPU, cfg.resetvec, DEFAULT_RSTVEC), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static gchar *riscv_gdb_arch_name(CPUState *cs) |
| { |
| RISCVCPU *cpu = RISCV_CPU(cs); |
| CPURISCVState *env = &cpu->env; |
| |
| if (riscv_cpu_is_32bit(env)) { |
| return g_strdup("riscv:rv32"); |
| } else { |
| return g_strdup("riscv:rv64"); |
| } |
| } |
| |
| static const char *riscv_gdb_get_dynamic_xml(CPUState *cs, const char *xmlname) |
| { |
| RISCVCPU *cpu = RISCV_CPU(cs); |
| |
| if (strcmp(xmlname, "riscv-csr.xml") == 0) { |
| return cpu->dyn_csr_xml; |
| } |
| |
| return NULL; |
| } |
| |
| #ifndef CONFIG_USER_ONLY |
| #include "hw/core/sysemu-cpu-ops.h" |
| |
| static const struct SysemuCPUOps riscv_sysemu_ops = { |
| .get_phys_page_debug = riscv_cpu_get_phys_page_debug, |
| .write_elf64_note = riscv_cpu_write_elf64_note, |
| .write_elf32_note = riscv_cpu_write_elf32_note, |
| .legacy_vmsd = &vmstate_riscv_cpu, |
| }; |
| #endif |
| |
| #include "hw/core/tcg-cpu-ops.h" |
| |
| static const struct TCGCPUOps riscv_tcg_ops = { |
| .initialize = riscv_translate_init, |
| .synchronize_from_tb = riscv_cpu_synchronize_from_tb, |
| .cpu_exec_interrupt = riscv_cpu_exec_interrupt, |
| .tlb_fill = riscv_cpu_tlb_fill, |
| |
| #ifndef CONFIG_USER_ONLY |
| .do_interrupt = riscv_cpu_do_interrupt, |
| .do_transaction_failed = riscv_cpu_do_transaction_failed, |
| .do_unaligned_access = riscv_cpu_do_unaligned_access, |
| #endif /* !CONFIG_USER_ONLY */ |
| }; |
| |
| static void riscv_cpu_class_init(ObjectClass *c, void *data) |
| { |
| RISCVCPUClass *mcc = RISCV_CPU_CLASS(c); |
| CPUClass *cc = CPU_CLASS(c); |
| DeviceClass *dc = DEVICE_CLASS(c); |
| |
| device_class_set_parent_realize(dc, riscv_cpu_realize, |
| &mcc->parent_realize); |
| |
| device_class_set_parent_reset(dc, riscv_cpu_reset, &mcc->parent_reset); |
| |
| cc->class_by_name = riscv_cpu_class_by_name; |
| cc->has_work = riscv_cpu_has_work; |
| cc->dump_state = riscv_cpu_dump_state; |
| cc->set_pc = riscv_cpu_set_pc; |
| cc->gdb_read_register = riscv_cpu_gdb_read_register; |
| cc->gdb_write_register = riscv_cpu_gdb_write_register; |
| cc->gdb_num_core_regs = 33; |
| #if defined(TARGET_RISCV32) |
| cc->gdb_core_xml_file = "riscv-32bit-cpu.xml"; |
| #elif defined(TARGET_RISCV64) |
| cc->gdb_core_xml_file = "riscv-64bit-cpu.xml"; |
| #endif |
| cc->gdb_stop_before_watchpoint = true; |
| cc->disas_set_info = riscv_cpu_disas_set_info; |
| #ifndef CONFIG_USER_ONLY |
| cc->sysemu_ops = &riscv_sysemu_ops; |
| #endif |
| cc->gdb_arch_name = riscv_gdb_arch_name; |
| cc->gdb_get_dynamic_xml = riscv_gdb_get_dynamic_xml; |
| cc->tcg_ops = &riscv_tcg_ops; |
| |
| device_class_set_props(dc, riscv_cpu_properties); |
| } |
| |
| char *riscv_isa_string(RISCVCPU *cpu) |
| { |
| int i; |
| const size_t maxlen = sizeof("rv128") + sizeof(riscv_exts) + 1; |
| char *isa_str = g_new(char, maxlen); |
| char *p = isa_str + snprintf(isa_str, maxlen, "rv%d", TARGET_LONG_BITS); |
| for (i = 0; i < sizeof(riscv_exts); i++) { |
| if (cpu->env.misa & RV(riscv_exts[i])) { |
| *p++ = qemu_tolower(riscv_exts[i]); |
| } |
| } |
| *p = '\0'; |
| return isa_str; |
| } |
| |
| static gint riscv_cpu_list_compare(gconstpointer a, gconstpointer b) |
| { |
| ObjectClass *class_a = (ObjectClass *)a; |
| ObjectClass *class_b = (ObjectClass *)b; |
| const char *name_a, *name_b; |
| |
| name_a = object_class_get_name(class_a); |
| name_b = object_class_get_name(class_b); |
| return strcmp(name_a, name_b); |
| } |
| |
| static void riscv_cpu_list_entry(gpointer data, gpointer user_data) |
| { |
| const char *typename = object_class_get_name(OBJECT_CLASS(data)); |
| int len = strlen(typename) - strlen(RISCV_CPU_TYPE_SUFFIX); |
| |
| qemu_printf("%.*s\n", len, typename); |
| } |
| |
| void riscv_cpu_list(void) |
| { |
| GSList *list; |
| |
| list = object_class_get_list(TYPE_RISCV_CPU, false); |
| list = g_slist_sort(list, riscv_cpu_list_compare); |
| g_slist_foreach(list, riscv_cpu_list_entry, NULL); |
| g_slist_free(list); |
| } |
| |
| #define DEFINE_CPU(type_name, initfn) \ |
| { \ |
| .name = type_name, \ |
| .parent = TYPE_RISCV_CPU, \ |
| .instance_init = initfn \ |
| } |
| |
| static const TypeInfo riscv_cpu_type_infos[] = { |
| { |
| .name = TYPE_RISCV_CPU, |
| .parent = TYPE_CPU, |
| .instance_size = sizeof(RISCVCPU), |
| .instance_align = __alignof__(RISCVCPU), |
| .instance_init = riscv_cpu_init, |
| .abstract = true, |
| .class_size = sizeof(RISCVCPUClass), |
| .class_init = riscv_cpu_class_init, |
| }, |
| DEFINE_CPU(TYPE_RISCV_CPU_ANY, riscv_any_cpu_init), |
| #if defined(TARGET_RISCV32) |
| 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, rv32_sifive_e_cpu_init), |
| DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E34, rv32_imafcu_nommu_cpu_init), |
| DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U34, rv32_sifive_u_cpu_init), |
| #elif defined(TARGET_RISCV64) |
| 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), |
| DEFINE_CPU(TYPE_RISCV_CPU_SHAKTI_C, rv64_sifive_u_cpu_init), |
| #endif |
| }; |
| |
| DEFINE_TYPES(riscv_cpu_type_infos) |
