| /* |
| * RISC-V Control and Status Registers. |
| * |
| * 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/log.h" |
| #include "qemu/timer.h" |
| #include "cpu.h" |
| #include "tcg/tcg-cpu.h" |
| #include "pmu.h" |
| #include "time_helper.h" |
| #include "exec/exec-all.h" |
| #include "exec/tb-flush.h" |
| #include "sysemu/cpu-timers.h" |
| #include "qemu/guest-random.h" |
| #include "qapi/error.h" |
| |
| /* CSR function table public API */ |
| void riscv_get_csr_ops(int csrno, riscv_csr_operations *ops) |
| { |
| *ops = csr_ops[csrno & (CSR_TABLE_SIZE - 1)]; |
| } |
| |
| void riscv_set_csr_ops(int csrno, riscv_csr_operations *ops) |
| { |
| csr_ops[csrno & (CSR_TABLE_SIZE - 1)] = *ops; |
| } |
| |
| /* Predicates */ |
| #if !defined(CONFIG_USER_ONLY) |
| RISCVException smstateen_acc_ok(CPURISCVState *env, int index, uint64_t bit) |
| { |
| bool virt = env->virt_enabled; |
| |
| if (env->priv == PRV_M || !riscv_cpu_cfg(env)->ext_smstateen) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| if (!(env->mstateen[index] & bit)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| if (virt) { |
| if (!(env->hstateen[index] & bit)) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| |
| if (env->priv == PRV_U && !(env->sstateen[index] & bit)) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| } |
| |
| if (env->priv == PRV_U && riscv_has_ext(env, RVS)) { |
| if (!(env->sstateen[index] & bit)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| #endif |
| |
| static RISCVException fs(CPURISCVState *env, int csrno) |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| if (!env->debugger && !riscv_cpu_fp_enabled(env) && |
| !riscv_cpu_cfg(env)->ext_zfinx) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| if (!env->debugger && !riscv_cpu_fp_enabled(env)) { |
| return smstateen_acc_ok(env, 0, SMSTATEEN0_FCSR); |
| } |
| #endif |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException vs(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_cfg(env)->ext_zve32x) { |
| #if !defined(CONFIG_USER_ONLY) |
| if (!env->debugger && !riscv_cpu_vector_enabled(env)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| #endif |
| return RISCV_EXCP_NONE; |
| } |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| static RISCVException ctr(CPURISCVState *env, int csrno) |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| RISCVCPU *cpu = env_archcpu(env); |
| int ctr_index; |
| target_ulong ctr_mask; |
| int base_csrno = CSR_CYCLE; |
| bool rv32 = riscv_cpu_mxl(env) == MXL_RV32 ? true : false; |
| |
| if (rv32 && csrno >= CSR_CYCLEH) { |
| /* Offset for RV32 hpmcounternh counters */ |
| base_csrno += 0x80; |
| } |
| ctr_index = csrno - base_csrno; |
| ctr_mask = BIT(ctr_index); |
| |
| if ((csrno >= CSR_CYCLE && csrno <= CSR_INSTRET) || |
| (csrno >= CSR_CYCLEH && csrno <= CSR_INSTRETH)) { |
| if (!riscv_cpu_cfg(env)->ext_zicntr) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| goto skip_ext_pmu_check; |
| } |
| |
| if (!(cpu->pmu_avail_ctrs & ctr_mask)) { |
| /* No counter is enabled in PMU or the counter is out of range */ |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| skip_ext_pmu_check: |
| |
| if (env->debugger) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| if (env->priv < PRV_M && !get_field(env->mcounteren, ctr_mask)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| if (env->virt_enabled) { |
| if (!get_field(env->hcounteren, ctr_mask) || |
| (env->priv == PRV_U && !get_field(env->scounteren, ctr_mask))) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| } |
| |
| if (riscv_has_ext(env, RVS) && env->priv == PRV_U && |
| !get_field(env->scounteren, ctr_mask)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| #endif |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException ctr32(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return ctr(env, csrno); |
| } |
| |
| static RISCVException zcmt(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_zcmt) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| #if !defined(CONFIG_USER_ONLY) |
| RISCVException ret = smstateen_acc_ok(env, 0, SMSTATEEN0_JVT); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| #endif |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| #if !defined(CONFIG_USER_ONLY) |
| static RISCVException mctr(CPURISCVState *env, int csrno) |
| { |
| RISCVCPU *cpu = env_archcpu(env); |
| uint32_t pmu_avail_ctrs = cpu->pmu_avail_ctrs; |
| int ctr_index; |
| int base_csrno = CSR_MHPMCOUNTER3; |
| |
| if ((riscv_cpu_mxl(env) == MXL_RV32) && csrno >= CSR_MCYCLEH) { |
| /* Offset for RV32 mhpmcounternh counters */ |
| csrno -= 0x80; |
| } |
| |
| g_assert(csrno >= CSR_MHPMCOUNTER3 && csrno <= CSR_MHPMCOUNTER31); |
| |
| ctr_index = csrno - base_csrno; |
| if ((BIT(ctr_index) & pmu_avail_ctrs >> 3) == 0) { |
| /* The PMU is not enabled or counter is out of range */ |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException mctr32(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return mctr(env, csrno); |
| } |
| |
| static RISCVException sscofpmf(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_sscofpmf) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException sscofpmf_32(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return sscofpmf(env, csrno); |
| } |
| |
| static RISCVException smcntrpmf(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_smcntrpmf) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException smcntrpmf_32(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return smcntrpmf(env, csrno); |
| } |
| |
| static RISCVException any(CPURISCVState *env, int csrno) |
| { |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException any32(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return any(env, csrno); |
| |
| } |
| |
| static RISCVException aia_any(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_smaia) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return any(env, csrno); |
| } |
| |
| static RISCVException aia_any32(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_smaia) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return any32(env, csrno); |
| } |
| |
| static RISCVException smode(CPURISCVState *env, int csrno) |
| { |
| if (riscv_has_ext(env, RVS)) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| static RISCVException smode32(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return smode(env, csrno); |
| } |
| |
| static RISCVException aia_smode(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_ssaia) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return smode(env, csrno); |
| } |
| |
| static RISCVException aia_smode32(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_ssaia) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return smode32(env, csrno); |
| } |
| |
| static RISCVException hmode(CPURISCVState *env, int csrno) |
| { |
| if (riscv_has_ext(env, RVH)) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| static RISCVException hmode32(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return hmode(env, csrno); |
| |
| } |
| |
| static RISCVException umode(CPURISCVState *env, int csrno) |
| { |
| if (riscv_has_ext(env, RVU)) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| static RISCVException umode32(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return umode(env, csrno); |
| } |
| |
| static RISCVException mstateen(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_smstateen) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return any(env, csrno); |
| } |
| |
| static RISCVException hstateen_pred(CPURISCVState *env, int csrno, int base) |
| { |
| if (!riscv_cpu_cfg(env)->ext_smstateen) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| RISCVException ret = hmode(env, csrno); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| if (env->debugger) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| if (env->priv < PRV_M) { |
| if (!(env->mstateen[csrno - base] & SMSTATEEN_STATEEN)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException hstateen(CPURISCVState *env, int csrno) |
| { |
| return hstateen_pred(env, csrno, CSR_HSTATEEN0); |
| } |
| |
| static RISCVException hstateenh(CPURISCVState *env, int csrno) |
| { |
| return hstateen_pred(env, csrno, CSR_HSTATEEN0H); |
| } |
| |
| static RISCVException sstateen(CPURISCVState *env, int csrno) |
| { |
| bool virt = env->virt_enabled; |
| int index = csrno - CSR_SSTATEEN0; |
| |
| if (!riscv_cpu_cfg(env)->ext_smstateen) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| RISCVException ret = smode(env, csrno); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| if (env->debugger) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| if (env->priv < PRV_M) { |
| if (!(env->mstateen[index] & SMSTATEEN_STATEEN)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| if (virt) { |
| if (!(env->hstateen[index] & SMSTATEEN_STATEEN)) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| } |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException sstc(CPURISCVState *env, int csrno) |
| { |
| bool hmode_check = false; |
| |
| if (!riscv_cpu_cfg(env)->ext_sstc || !env->rdtime_fn) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| if ((csrno == CSR_VSTIMECMP) || (csrno == CSR_VSTIMECMPH)) { |
| hmode_check = true; |
| } |
| |
| RISCVException ret = hmode_check ? hmode(env, csrno) : smode(env, csrno); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| if (env->debugger) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| if (env->priv == PRV_M) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* |
| * No need of separate function for rv32 as menvcfg stores both menvcfg |
| * menvcfgh for RV32. |
| */ |
| if (!(get_field(env->mcounteren, COUNTEREN_TM) && |
| get_field(env->menvcfg, MENVCFG_STCE))) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| if (env->virt_enabled) { |
| if (!(get_field(env->hcounteren, COUNTEREN_TM) && |
| get_field(env->henvcfg, HENVCFG_STCE))) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException sstc_32(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return sstc(env, csrno); |
| } |
| |
| static RISCVException satp(CPURISCVState *env, int csrno) |
| { |
| if (env->priv == PRV_S && !env->virt_enabled && |
| get_field(env->mstatus, MSTATUS_TVM)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| if (env->priv == PRV_S && env->virt_enabled && |
| get_field(env->hstatus, HSTATUS_VTVM)) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| |
| return smode(env, csrno); |
| } |
| |
| static RISCVException hgatp(CPURISCVState *env, int csrno) |
| { |
| if (env->priv == PRV_S && !env->virt_enabled && |
| get_field(env->mstatus, MSTATUS_TVM)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return hmode(env, csrno); |
| } |
| |
| /* Checks if PointerMasking registers could be accessed */ |
| static RISCVException pointer_masking(CPURISCVState *env, int csrno) |
| { |
| /* Check if j-ext is present */ |
| if (riscv_has_ext(env, RVJ)) { |
| return RISCV_EXCP_NONE; |
| } |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| static RISCVException aia_hmode(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_ssaia) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return hmode(env, csrno); |
| } |
| |
| static RISCVException aia_hmode32(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_ssaia) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return hmode32(env, csrno); |
| } |
| |
| static RISCVException pmp(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_cfg(env)->pmp) { |
| if (csrno <= CSR_PMPCFG3) { |
| uint32_t reg_index = csrno - CSR_PMPCFG0; |
| |
| /* TODO: RV128 restriction check */ |
| if ((reg_index & 1) && (riscv_cpu_mxl(env) == MXL_RV64)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| static RISCVException have_mseccfg(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_cfg(env)->ext_smepmp) { |
| return RISCV_EXCP_NONE; |
| } |
| if (riscv_cpu_cfg(env)->ext_zkr) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| static RISCVException debug(CPURISCVState *env, int csrno) |
| { |
| if (riscv_cpu_cfg(env)->debug) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| #endif |
| |
| static RISCVException seed(CPURISCVState *env, int csrno) |
| { |
| if (!riscv_cpu_cfg(env)->ext_zkr) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| #if !defined(CONFIG_USER_ONLY) |
| if (env->debugger) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* |
| * With a CSR read-write instruction: |
| * 1) The seed CSR is always available in machine mode as normal. |
| * 2) Attempted access to seed from virtual modes VS and VU always raises |
| * an exception(virtual instruction exception only if mseccfg.sseed=1). |
| * 3) Without the corresponding access control bit set to 1, any attempted |
| * access to seed from U, S or HS modes will raise an illegal instruction |
| * exception. |
| */ |
| if (env->priv == PRV_M) { |
| return RISCV_EXCP_NONE; |
| } else if (env->virt_enabled) { |
| if (env->mseccfg & MSECCFG_SSEED) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } else { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| } else { |
| if (env->priv == PRV_S && (env->mseccfg & MSECCFG_SSEED)) { |
| return RISCV_EXCP_NONE; |
| } else if (env->priv == PRV_U && (env->mseccfg & MSECCFG_USEED)) { |
| return RISCV_EXCP_NONE; |
| } else { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| } |
| #else |
| return RISCV_EXCP_NONE; |
| #endif |
| } |
| |
| /* User Floating-Point CSRs */ |
| static RISCVException read_fflags(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = riscv_cpu_get_fflags(env); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_fflags(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| if (riscv_has_ext(env, RVF)) { |
| env->mstatus |= MSTATUS_FS; |
| } |
| #endif |
| riscv_cpu_set_fflags(env, val & (FSR_AEXC >> FSR_AEXC_SHIFT)); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_frm(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->frm; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_frm(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| if (riscv_has_ext(env, RVF)) { |
| env->mstatus |= MSTATUS_FS; |
| } |
| #endif |
| env->frm = val & (FSR_RD >> FSR_RD_SHIFT); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_fcsr(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = (riscv_cpu_get_fflags(env) << FSR_AEXC_SHIFT) |
| | (env->frm << FSR_RD_SHIFT); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_fcsr(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| if (riscv_has_ext(env, RVF)) { |
| env->mstatus |= MSTATUS_FS; |
| } |
| #endif |
| env->frm = (val & FSR_RD) >> FSR_RD_SHIFT; |
| riscv_cpu_set_fflags(env, (val & FSR_AEXC) >> FSR_AEXC_SHIFT); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vtype(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| uint64_t vill; |
| switch (env->xl) { |
| case MXL_RV32: |
| vill = (uint32_t)env->vill << 31; |
| break; |
| case MXL_RV64: |
| vill = (uint64_t)env->vill << 63; |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| *val = (target_ulong)vill | env->vtype; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vl(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vl; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vlenb(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = riscv_cpu_cfg(env)->vlenb; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vxrm(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vxrm; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vxrm(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| env->mstatus |= MSTATUS_VS; |
| #endif |
| env->vxrm = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vxsat(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vxsat; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vxsat(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| env->mstatus |= MSTATUS_VS; |
| #endif |
| env->vxsat = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vstart(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vstart; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vstart(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| env->mstatus |= MSTATUS_VS; |
| #endif |
| /* |
| * The vstart CSR is defined to have only enough writable bits |
| * to hold the largest element index, i.e. lg2(VLEN) bits. |
| */ |
| env->vstart = val & ~(~0ULL << ctzl(riscv_cpu_cfg(env)->vlenb << 3)); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vcsr(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = (env->vxrm << VCSR_VXRM_SHIFT) | (env->vxsat << VCSR_VXSAT_SHIFT); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vcsr(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| env->mstatus |= MSTATUS_VS; |
| #endif |
| env->vxrm = (val & VCSR_VXRM) >> VCSR_VXRM_SHIFT; |
| env->vxsat = (val & VCSR_VXSAT) >> VCSR_VXSAT_SHIFT; |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* User Timers and Counters */ |
| static target_ulong get_ticks(bool shift, bool instructions) |
| { |
| int64_t val; |
| target_ulong result; |
| |
| #if !defined(CONFIG_USER_ONLY) |
| if (icount_enabled()) { |
| if (instructions) { |
| val = icount_get_raw(); |
| } else { |
| val = icount_get(); |
| } |
| } else { |
| val = cpu_get_host_ticks(); |
| } |
| #else |
| val = cpu_get_host_ticks(); |
| #endif |
| |
| if (shift) { |
| result = val >> 32; |
| } else { |
| result = val; |
| } |
| |
| return result; |
| } |
| |
| #if defined(CONFIG_USER_ONLY) |
| static RISCVException read_time(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = cpu_get_host_ticks(); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_timeh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = cpu_get_host_ticks() >> 32; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hpmcounter(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = get_ticks(false, (csrno == CSR_INSTRET)); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hpmcounterh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = get_ticks(true, (csrno == CSR_INSTRETH)); |
| return RISCV_EXCP_NONE; |
| } |
| |
| #else /* CONFIG_USER_ONLY */ |
| |
| static RISCVException read_mcyclecfg(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mcyclecfg; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mcyclecfg(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t inh_avail_mask; |
| |
| if (riscv_cpu_mxl(env) == MXL_RV32) { |
| env->mcyclecfg = val; |
| } else { |
| /* Set xINH fields if priv mode supported */ |
| inh_avail_mask = ~MHPMEVENT_FILTER_MASK | MCYCLECFG_BIT_MINH; |
| inh_avail_mask |= riscv_has_ext(env, RVU) ? MCYCLECFG_BIT_UINH : 0; |
| inh_avail_mask |= riscv_has_ext(env, RVS) ? MCYCLECFG_BIT_SINH : 0; |
| inh_avail_mask |= (riscv_has_ext(env, RVH) && |
| riscv_has_ext(env, RVU)) ? MCYCLECFG_BIT_VUINH : 0; |
| inh_avail_mask |= (riscv_has_ext(env, RVH) && |
| riscv_has_ext(env, RVS)) ? MCYCLECFG_BIT_VSINH : 0; |
| env->mcyclecfg = val & inh_avail_mask; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mcyclecfgh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mcyclecfgh; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mcyclecfgh(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| target_ulong inh_avail_mask = (target_ulong)(~MHPMEVENTH_FILTER_MASK | |
| MCYCLECFGH_BIT_MINH); |
| |
| /* Set xINH fields if priv mode supported */ |
| inh_avail_mask |= riscv_has_ext(env, RVU) ? MCYCLECFGH_BIT_UINH : 0; |
| inh_avail_mask |= riscv_has_ext(env, RVS) ? MCYCLECFGH_BIT_SINH : 0; |
| inh_avail_mask |= (riscv_has_ext(env, RVH) && |
| riscv_has_ext(env, RVU)) ? MCYCLECFGH_BIT_VUINH : 0; |
| inh_avail_mask |= (riscv_has_ext(env, RVH) && |
| riscv_has_ext(env, RVS)) ? MCYCLECFGH_BIT_VSINH : 0; |
| |
| env->mcyclecfgh = val & inh_avail_mask; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_minstretcfg(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->minstretcfg; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_minstretcfg(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t inh_avail_mask; |
| |
| if (riscv_cpu_mxl(env) == MXL_RV32) { |
| env->minstretcfg = val; |
| } else { |
| inh_avail_mask = ~MHPMEVENT_FILTER_MASK | MINSTRETCFG_BIT_MINH; |
| inh_avail_mask |= riscv_has_ext(env, RVU) ? MINSTRETCFG_BIT_UINH : 0; |
| inh_avail_mask |= riscv_has_ext(env, RVS) ? MINSTRETCFG_BIT_SINH : 0; |
| inh_avail_mask |= (riscv_has_ext(env, RVH) && |
| riscv_has_ext(env, RVU)) ? MINSTRETCFG_BIT_VUINH : 0; |
| inh_avail_mask |= (riscv_has_ext(env, RVH) && |
| riscv_has_ext(env, RVS)) ? MINSTRETCFG_BIT_VSINH : 0; |
| env->minstretcfg = val & inh_avail_mask; |
| } |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_minstretcfgh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->minstretcfgh; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_minstretcfgh(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| target_ulong inh_avail_mask = (target_ulong)(~MHPMEVENTH_FILTER_MASK | |
| MINSTRETCFGH_BIT_MINH); |
| |
| inh_avail_mask |= riscv_has_ext(env, RVU) ? MINSTRETCFGH_BIT_UINH : 0; |
| inh_avail_mask |= riscv_has_ext(env, RVS) ? MINSTRETCFGH_BIT_SINH : 0; |
| inh_avail_mask |= (riscv_has_ext(env, RVH) && |
| riscv_has_ext(env, RVU)) ? MINSTRETCFGH_BIT_VUINH : 0; |
| inh_avail_mask |= (riscv_has_ext(env, RVH) && |
| riscv_has_ext(env, RVS)) ? MINSTRETCFGH_BIT_VSINH : 0; |
| |
| env->minstretcfgh = val & inh_avail_mask; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mhpmevent(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| int evt_index = csrno - CSR_MCOUNTINHIBIT; |
| |
| *val = env->mhpmevent_val[evt_index]; |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mhpmevent(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| int evt_index = csrno - CSR_MCOUNTINHIBIT; |
| uint64_t mhpmevt_val = val; |
| |
| env->mhpmevent_val[evt_index] = val; |
| |
| if (riscv_cpu_mxl(env) == MXL_RV32) { |
| mhpmevt_val = mhpmevt_val | |
| ((uint64_t)env->mhpmeventh_val[evt_index] << 32); |
| } |
| riscv_pmu_update_event_map(env, mhpmevt_val, evt_index); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mhpmeventh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| int evt_index = csrno - CSR_MHPMEVENT3H + 3; |
| |
| *val = env->mhpmeventh_val[evt_index]; |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mhpmeventh(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| int evt_index = csrno - CSR_MHPMEVENT3H + 3; |
| uint64_t mhpmevth_val = val; |
| uint64_t mhpmevt_val = env->mhpmevent_val[evt_index]; |
| |
| mhpmevt_val = mhpmevt_val | (mhpmevth_val << 32); |
| env->mhpmeventh_val[evt_index] = val; |
| |
| riscv_pmu_update_event_map(env, mhpmevt_val, evt_index); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mhpmcounter(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| int ctr_idx = csrno - CSR_MCYCLE; |
| PMUCTRState *counter = &env->pmu_ctrs[ctr_idx]; |
| uint64_t mhpmctr_val = val; |
| bool instr = riscv_pmu_ctr_monitor_instructions(env, ctr_idx); |
| |
| counter->mhpmcounter_val = val; |
| if (riscv_pmu_ctr_monitor_cycles(env, ctr_idx) || instr) { |
| counter->mhpmcounter_prev = get_ticks(false, instr); |
| if (ctr_idx > 2) { |
| if (riscv_cpu_mxl(env) == MXL_RV32) { |
| mhpmctr_val = mhpmctr_val | |
| ((uint64_t)counter->mhpmcounterh_val << 32); |
| } |
| riscv_pmu_setup_timer(env, mhpmctr_val, ctr_idx); |
| } |
| } else { |
| /* Other counters can keep incrementing from the given value */ |
| counter->mhpmcounter_prev = val; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mhpmcounterh(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| int ctr_idx = csrno - CSR_MCYCLEH; |
| PMUCTRState *counter = &env->pmu_ctrs[ctr_idx]; |
| uint64_t mhpmctr_val = counter->mhpmcounter_val; |
| uint64_t mhpmctrh_val = val; |
| bool instr = riscv_pmu_ctr_monitor_instructions(env, ctr_idx); |
| |
| counter->mhpmcounterh_val = val; |
| mhpmctr_val = mhpmctr_val | (mhpmctrh_val << 32); |
| if (riscv_pmu_ctr_monitor_cycles(env, ctr_idx) || instr) { |
| counter->mhpmcounterh_prev = get_ticks(true, instr); |
| if (ctr_idx > 2) { |
| riscv_pmu_setup_timer(env, mhpmctr_val, ctr_idx); |
| } |
| } else { |
| counter->mhpmcounterh_prev = val; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException riscv_pmu_read_ctr(CPURISCVState *env, target_ulong *val, |
| bool upper_half, uint32_t ctr_idx) |
| { |
| PMUCTRState *counter = &env->pmu_ctrs[ctr_idx]; |
| target_ulong ctr_prev = upper_half ? counter->mhpmcounterh_prev : |
| counter->mhpmcounter_prev; |
| target_ulong ctr_val = upper_half ? counter->mhpmcounterh_val : |
| counter->mhpmcounter_val; |
| bool instr = riscv_pmu_ctr_monitor_instructions(env, ctr_idx); |
| |
| if (get_field(env->mcountinhibit, BIT(ctr_idx))) { |
| /* |
| * Counter should not increment if inhibit bit is set. We can't really |
| * stop the icount counting. Just return the counter value written by |
| * the supervisor to indicate that counter was not incremented. |
| */ |
| if (!counter->started) { |
| *val = ctr_val; |
| return RISCV_EXCP_NONE; |
| } else { |
| /* Mark that the counter has been stopped */ |
| counter->started = false; |
| } |
| } |
| |
| /* |
| * The kernel computes the perf delta by subtracting the current value from |
| * the value it initialized previously (ctr_val). |
| */ |
| if (riscv_pmu_ctr_monitor_cycles(env, ctr_idx) || instr) { |
| *val = get_ticks(upper_half, instr) - ctr_prev + ctr_val; |
| } else { |
| *val = ctr_val; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hpmcounter(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| uint16_t ctr_index; |
| |
| if (csrno >= CSR_MCYCLE && csrno <= CSR_MHPMCOUNTER31) { |
| ctr_index = csrno - CSR_MCYCLE; |
| } else if (csrno >= CSR_CYCLE && csrno <= CSR_HPMCOUNTER31) { |
| ctr_index = csrno - CSR_CYCLE; |
| } else { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return riscv_pmu_read_ctr(env, val, false, ctr_index); |
| } |
| |
| static RISCVException read_hpmcounterh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| uint16_t ctr_index; |
| |
| if (csrno >= CSR_MCYCLEH && csrno <= CSR_MHPMCOUNTER31H) { |
| ctr_index = csrno - CSR_MCYCLEH; |
| } else if (csrno >= CSR_CYCLEH && csrno <= CSR_HPMCOUNTER31H) { |
| ctr_index = csrno - CSR_CYCLEH; |
| } else { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| return riscv_pmu_read_ctr(env, val, true, ctr_index); |
| } |
| |
| static RISCVException read_scountovf(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| int mhpmevt_start = CSR_MHPMEVENT3 - CSR_MCOUNTINHIBIT; |
| int i; |
| *val = 0; |
| target_ulong *mhpm_evt_val; |
| uint64_t of_bit_mask; |
| |
| if (riscv_cpu_mxl(env) == MXL_RV32) { |
| mhpm_evt_val = env->mhpmeventh_val; |
| of_bit_mask = MHPMEVENTH_BIT_OF; |
| } else { |
| mhpm_evt_val = env->mhpmevent_val; |
| of_bit_mask = MHPMEVENT_BIT_OF; |
| } |
| |
| for (i = mhpmevt_start; i < RV_MAX_MHPMEVENTS; i++) { |
| if ((get_field(env->mcounteren, BIT(i))) && |
| (mhpm_evt_val[i] & of_bit_mask)) { |
| *val |= BIT(i); |
| } |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_time(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| uint64_t delta = env->virt_enabled ? env->htimedelta : 0; |
| |
| if (!env->rdtime_fn) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| *val = env->rdtime_fn(env->rdtime_fn_arg) + delta; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_timeh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| uint64_t delta = env->virt_enabled ? env->htimedelta : 0; |
| |
| if (!env->rdtime_fn) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| *val = (env->rdtime_fn(env->rdtime_fn_arg) + delta) >> 32; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vstimecmp(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vstimecmp; |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vstimecmph(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vstimecmp >> 32; |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vstimecmp(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| if (riscv_cpu_mxl(env) == MXL_RV32) { |
| env->vstimecmp = deposit64(env->vstimecmp, 0, 32, (uint64_t)val); |
| } else { |
| env->vstimecmp = val; |
| } |
| |
| riscv_timer_write_timecmp(env, env->vstimer, env->vstimecmp, |
| env->htimedelta, MIP_VSTIP); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vstimecmph(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->vstimecmp = deposit64(env->vstimecmp, 32, 32, (uint64_t)val); |
| riscv_timer_write_timecmp(env, env->vstimer, env->vstimecmp, |
| env->htimedelta, MIP_VSTIP); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_stimecmp(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| if (env->virt_enabled) { |
| *val = env->vstimecmp; |
| } else { |
| *val = env->stimecmp; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_stimecmph(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| if (env->virt_enabled) { |
| *val = env->vstimecmp >> 32; |
| } else { |
| *val = env->stimecmp >> 32; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_stimecmp(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| if (env->virt_enabled) { |
| if (env->hvictl & HVICTL_VTI) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| return write_vstimecmp(env, csrno, val); |
| } |
| |
| if (riscv_cpu_mxl(env) == MXL_RV32) { |
| env->stimecmp = deposit64(env->stimecmp, 0, 32, (uint64_t)val); |
| } else { |
| env->stimecmp = val; |
| } |
| |
| riscv_timer_write_timecmp(env, env->stimer, env->stimecmp, 0, MIP_STIP); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_stimecmph(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| if (env->virt_enabled) { |
| if (env->hvictl & HVICTL_VTI) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| return write_vstimecmph(env, csrno, val); |
| } |
| |
| env->stimecmp = deposit64(env->stimecmp, 32, 32, (uint64_t)val); |
| riscv_timer_write_timecmp(env, env->stimer, env->stimecmp, 0, MIP_STIP); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| #define VSTOPI_NUM_SRCS 5 |
| |
| /* |
| * All core local interrupts except the fixed ones 0:12. This macro is for |
| * virtual interrupts logic so please don't change this to avoid messing up |
| * the whole support, For reference see AIA spec: `5.3 Interrupt filtering and |
| * virtual interrupts for supervisor level` and `6.3.2 Virtual interrupts for |
| * VS level`. |
| */ |
| #define LOCAL_INTERRUPTS (~0x1FFFULL) |
| |
| static const uint64_t delegable_ints = |
| S_MODE_INTERRUPTS | VS_MODE_INTERRUPTS | MIP_LCOFIP; |
| static const uint64_t vs_delegable_ints = |
| (VS_MODE_INTERRUPTS | LOCAL_INTERRUPTS) & ~MIP_LCOFIP; |
| static const uint64_t all_ints = M_MODE_INTERRUPTS | S_MODE_INTERRUPTS | |
| HS_MODE_INTERRUPTS | LOCAL_INTERRUPTS; |
| #define DELEGABLE_EXCPS ((1ULL << (RISCV_EXCP_INST_ADDR_MIS)) | \ |
| (1ULL << (RISCV_EXCP_INST_ACCESS_FAULT)) | \ |
| (1ULL << (RISCV_EXCP_ILLEGAL_INST)) | \ |
| (1ULL << (RISCV_EXCP_BREAKPOINT)) | \ |
| (1ULL << (RISCV_EXCP_LOAD_ADDR_MIS)) | \ |
| (1ULL << (RISCV_EXCP_LOAD_ACCESS_FAULT)) | \ |
| (1ULL << (RISCV_EXCP_STORE_AMO_ADDR_MIS)) | \ |
| (1ULL << (RISCV_EXCP_STORE_AMO_ACCESS_FAULT)) | \ |
| (1ULL << (RISCV_EXCP_U_ECALL)) | \ |
| (1ULL << (RISCV_EXCP_S_ECALL)) | \ |
| (1ULL << (RISCV_EXCP_VS_ECALL)) | \ |
| (1ULL << (RISCV_EXCP_M_ECALL)) | \ |
| (1ULL << (RISCV_EXCP_INST_PAGE_FAULT)) | \ |
| (1ULL << (RISCV_EXCP_LOAD_PAGE_FAULT)) | \ |
| (1ULL << (RISCV_EXCP_STORE_PAGE_FAULT)) | \ |
| (1ULL << (RISCV_EXCP_INST_GUEST_PAGE_FAULT)) | \ |
| (1ULL << (RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT)) | \ |
| (1ULL << (RISCV_EXCP_VIRT_INSTRUCTION_FAULT)) | \ |
| (1ULL << (RISCV_EXCP_STORE_GUEST_AMO_ACCESS_FAULT))) |
| static const target_ulong vs_delegable_excps = DELEGABLE_EXCPS & |
| ~((1ULL << (RISCV_EXCP_S_ECALL)) | |
| (1ULL << (RISCV_EXCP_VS_ECALL)) | |
| (1ULL << (RISCV_EXCP_M_ECALL)) | |
| (1ULL << (RISCV_EXCP_INST_GUEST_PAGE_FAULT)) | |
| (1ULL << (RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT)) | |
| (1ULL << (RISCV_EXCP_VIRT_INSTRUCTION_FAULT)) | |
| (1ULL << (RISCV_EXCP_STORE_GUEST_AMO_ACCESS_FAULT))); |
| static const target_ulong sstatus_v1_10_mask = SSTATUS_SIE | SSTATUS_SPIE | |
| SSTATUS_UIE | SSTATUS_UPIE | SSTATUS_SPP | SSTATUS_FS | SSTATUS_XS | |
| SSTATUS_SUM | SSTATUS_MXR | SSTATUS_VS; |
| |
| /* |
| * Spec allows for bits 13:63 to be either read-only or writable. |
| * So far we have interrupt LCOFIP in that region which is writable. |
| * |
| * Also, spec allows to inject virtual interrupts in this region even |
| * without any hardware interrupts for that interrupt number. |
| * |
| * For now interrupt in 13:63 region are all kept writable. 13 being |
| * LCOFIP and 14:63 being virtual only. Change this in future if we |
| * introduce more interrupts that are not writable. |
| */ |
| |
| /* Bit STIP can be an alias of mip.STIP that's why it's writable in mvip. */ |
| static const uint64_t mvip_writable_mask = MIP_SSIP | MIP_STIP | MIP_SEIP | |
| LOCAL_INTERRUPTS; |
| static const uint64_t mvien_writable_mask = MIP_SSIP | MIP_SEIP | |
| LOCAL_INTERRUPTS; |
| |
| static const uint64_t sip_writable_mask = SIP_SSIP | LOCAL_INTERRUPTS; |
| static const uint64_t hip_writable_mask = MIP_VSSIP; |
| static const uint64_t hvip_writable_mask = MIP_VSSIP | MIP_VSTIP | |
| MIP_VSEIP | LOCAL_INTERRUPTS; |
| static const uint64_t hvien_writable_mask = LOCAL_INTERRUPTS; |
| |
| static const uint64_t vsip_writable_mask = MIP_VSSIP | LOCAL_INTERRUPTS; |
| |
| const bool valid_vm_1_10_32[16] = { |
| [VM_1_10_MBARE] = true, |
| [VM_1_10_SV32] = true |
| }; |
| |
| const bool valid_vm_1_10_64[16] = { |
| [VM_1_10_MBARE] = true, |
| [VM_1_10_SV39] = true, |
| [VM_1_10_SV48] = true, |
| [VM_1_10_SV57] = true |
| }; |
| |
| /* Machine Information Registers */ |
| static RISCVException read_zero(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = 0; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_ignore(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mvendorid(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = riscv_cpu_cfg(env)->mvendorid; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_marchid(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = riscv_cpu_cfg(env)->marchid; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mimpid(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = riscv_cpu_cfg(env)->mimpid; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mhartid(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mhartid; |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* Machine Trap Setup */ |
| |
| /* We do not store SD explicitly, only compute it on demand. */ |
| static uint64_t add_status_sd(RISCVMXL xl, uint64_t status) |
| { |
| if ((status & MSTATUS_FS) == MSTATUS_FS || |
| (status & MSTATUS_VS) == MSTATUS_VS || |
| (status & MSTATUS_XS) == MSTATUS_XS) { |
| switch (xl) { |
| case MXL_RV32: |
| return status | MSTATUS32_SD; |
| case MXL_RV64: |
| return status | MSTATUS64_SD; |
| case MXL_RV128: |
| return MSTATUSH128_SD; |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| return status; |
| } |
| |
| static RISCVException read_mstatus(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = add_status_sd(riscv_cpu_mxl(env), env->mstatus); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static bool validate_vm(CPURISCVState *env, target_ulong vm) |
| { |
| uint64_t mode_supported = riscv_cpu_cfg(env)->satp_mode.map; |
| return get_field(mode_supported, (1 << vm)); |
| } |
| |
| static target_ulong legalize_xatp(CPURISCVState *env, target_ulong old_xatp, |
| target_ulong val) |
| { |
| target_ulong mask; |
| bool vm; |
| if (riscv_cpu_mxl(env) == MXL_RV32) { |
| vm = validate_vm(env, get_field(val, SATP32_MODE)); |
| mask = (val ^ old_xatp) & (SATP32_MODE | SATP32_ASID | SATP32_PPN); |
| } else { |
| vm = validate_vm(env, get_field(val, SATP64_MODE)); |
| mask = (val ^ old_xatp) & (SATP64_MODE | SATP64_ASID | SATP64_PPN); |
| } |
| |
| if (vm && mask) { |
| /* |
| * The ISA defines SATP.MODE=Bare as "no translation", but we still |
| * pass these through QEMU's TLB emulation as it improves |
| * performance. Flushing the TLB on SATP writes with paging |
| * enabled avoids leaking those invalid cached mappings. |
| */ |
| tlb_flush(env_cpu(env)); |
| return val; |
| } |
| return old_xatp; |
| } |
| |
| static target_ulong legalize_mpp(CPURISCVState *env, target_ulong old_mpp, |
| target_ulong val) |
| { |
| bool valid = false; |
| target_ulong new_mpp = get_field(val, MSTATUS_MPP); |
| |
| switch (new_mpp) { |
| case PRV_M: |
| valid = true; |
| break; |
| case PRV_S: |
| valid = riscv_has_ext(env, RVS); |
| break; |
| case PRV_U: |
| valid = riscv_has_ext(env, RVU); |
| break; |
| } |
| |
| /* Remain field unchanged if new_mpp value is invalid */ |
| if (!valid) { |
| val = set_field(val, MSTATUS_MPP, old_mpp); |
| } |
| |
| return val; |
| } |
| |
| static RISCVException write_mstatus(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mstatus = env->mstatus; |
| uint64_t mask = 0; |
| RISCVMXL xl = riscv_cpu_mxl(env); |
| |
| /* |
| * MPP field have been made WARL since priv version 1.11. However, |
| * legalization for it will not break any software running on 1.10. |
| */ |
| val = legalize_mpp(env, get_field(mstatus, MSTATUS_MPP), val); |
| |
| /* flush tlb on mstatus fields that affect VM */ |
| if ((val ^ mstatus) & MSTATUS_MXR) { |
| tlb_flush(env_cpu(env)); |
| } |
| mask = MSTATUS_SIE | MSTATUS_SPIE | MSTATUS_MIE | MSTATUS_MPIE | |
| MSTATUS_SPP | MSTATUS_MPRV | MSTATUS_SUM | |
| MSTATUS_MPP | MSTATUS_MXR | MSTATUS_TVM | MSTATUS_TSR | |
| MSTATUS_TW; |
| |
| if (riscv_has_ext(env, RVF)) { |
| mask |= MSTATUS_FS; |
| } |
| if (riscv_has_ext(env, RVV)) { |
| mask |= MSTATUS_VS; |
| } |
| |
| if (xl != MXL_RV32 || env->debugger) { |
| if (riscv_has_ext(env, RVH)) { |
| mask |= MSTATUS_MPV | MSTATUS_GVA; |
| } |
| if ((val & MSTATUS64_UXL) != 0) { |
| mask |= MSTATUS64_UXL; |
| } |
| } |
| |
| mstatus = (mstatus & ~mask) | (val & mask); |
| |
| env->mstatus = mstatus; |
| |
| /* |
| * Except in debug mode, UXL/SXL can only be modified by higher |
| * privilege mode. So xl will not be changed in normal mode. |
| */ |
| if (env->debugger) { |
| env->xl = cpu_recompute_xl(env); |
| } |
| |
| riscv_cpu_update_mask(env); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mstatush(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mstatus >> 32; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mstatush(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t valh = (uint64_t)val << 32; |
| uint64_t mask = riscv_has_ext(env, RVH) ? MSTATUS_MPV | MSTATUS_GVA : 0; |
| |
| env->mstatus = (env->mstatus & ~mask) | (valh & mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mstatus_i128(CPURISCVState *env, int csrno, |
| Int128 *val) |
| { |
| *val = int128_make128(env->mstatus, add_status_sd(MXL_RV128, |
| env->mstatus)); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_misa_i128(CPURISCVState *env, int csrno, |
| Int128 *val) |
| { |
| *val = int128_make128(env->misa_ext, (uint64_t)MXL_RV128 << 62); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_misa(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| target_ulong misa; |
| |
| switch (env->misa_mxl) { |
| case MXL_RV32: |
| misa = (target_ulong)MXL_RV32 << 30; |
| break; |
| #ifdef TARGET_RISCV64 |
| case MXL_RV64: |
| misa = (target_ulong)MXL_RV64 << 62; |
| break; |
| #endif |
| default: |
| g_assert_not_reached(); |
| } |
| |
| *val = misa | env->misa_ext; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_misa(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| RISCVCPU *cpu = env_archcpu(env); |
| uint32_t orig_misa_ext = env->misa_ext; |
| Error *local_err = NULL; |
| |
| if (!riscv_cpu_cfg(env)->misa_w) { |
| /* drop write to misa */ |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* Mask extensions that are not supported by this hart */ |
| val &= env->misa_ext_mask; |
| |
| /* |
| * Suppress 'C' if next instruction is not aligned |
| * TODO: this should check next_pc |
| */ |
| if ((val & RVC) && (GETPC() & ~3) != 0) { |
| val &= ~RVC; |
| } |
| |
| /* Disable RVG if any of its dependencies are disabled */ |
| if (!(val & RVI && val & RVM && val & RVA && |
| val & RVF && val & RVD)) { |
| val &= ~RVG; |
| } |
| |
| /* If nothing changed, do nothing. */ |
| if (val == env->misa_ext) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| env->misa_ext = val; |
| riscv_cpu_validate_set_extensions(cpu, &local_err); |
| if (local_err != NULL) { |
| /* Rollback on validation error */ |
| qemu_log_mask(LOG_GUEST_ERROR, "Unable to write MISA ext value " |
| "0x%x, keeping existing MISA ext 0x%x\n", |
| env->misa_ext, orig_misa_ext); |
| |
| env->misa_ext = orig_misa_ext; |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| if (!(env->misa_ext & RVF)) { |
| env->mstatus &= ~MSTATUS_FS; |
| } |
| |
| /* flush translation cache */ |
| tb_flush(env_cpu(env)); |
| env->xl = riscv_cpu_mxl(env); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_medeleg(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->medeleg; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_medeleg(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->medeleg = (env->medeleg & ~DELEGABLE_EXCPS) | (val & DELEGABLE_EXCPS); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_mideleg64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| uint64_t mask = wr_mask & delegable_ints; |
| |
| if (ret_val) { |
| *ret_val = env->mideleg; |
| } |
| |
| env->mideleg = (env->mideleg & ~mask) | (new_val & mask); |
| |
| if (riscv_has_ext(env, RVH)) { |
| env->mideleg |= HS_MODE_INTERRUPTS; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_mideleg(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mideleg64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_midelegh(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, |
| target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mideleg64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_mie64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| uint64_t mask = wr_mask & all_ints; |
| |
| if (ret_val) { |
| *ret_val = env->mie; |
| } |
| |
| env->mie = (env->mie & ~mask) | (new_val & mask); |
| |
| if (!riscv_has_ext(env, RVH)) { |
| env->mie &= ~((uint64_t)HS_MODE_INTERRUPTS); |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_mie(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mie64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_mieh(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mie64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_mvien64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| uint64_t mask = wr_mask & mvien_writable_mask; |
| |
| if (ret_val) { |
| *ret_val = env->mvien; |
| } |
| |
| env->mvien = (env->mvien & ~mask) | (new_val & mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_mvien(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mvien64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_mvienh(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mvien64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException read_mtopi(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| int irq; |
| uint8_t iprio; |
| |
| irq = riscv_cpu_mirq_pending(env); |
| if (irq <= 0 || irq > 63) { |
| *val = 0; |
| } else { |
| iprio = env->miprio[irq]; |
| if (!iprio) { |
| if (riscv_cpu_default_priority(irq) > IPRIO_DEFAULT_M) { |
| iprio = IPRIO_MMAXIPRIO; |
| } |
| } |
| *val = (irq & TOPI_IID_MASK) << TOPI_IID_SHIFT; |
| *val |= iprio; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static int aia_xlate_vs_csrno(CPURISCVState *env, int csrno) |
| { |
| if (!env->virt_enabled) { |
| return csrno; |
| } |
| |
| switch (csrno) { |
| case CSR_SISELECT: |
| return CSR_VSISELECT; |
| case CSR_SIREG: |
| return CSR_VSIREG; |
| case CSR_STOPEI: |
| return CSR_VSTOPEI; |
| default: |
| return csrno; |
| }; |
| } |
| |
| static RISCVException rmw_xiselect(CPURISCVState *env, int csrno, |
| target_ulong *val, target_ulong new_val, |
| target_ulong wr_mask) |
| { |
| target_ulong *iselect; |
| |
| /* Translate CSR number for VS-mode */ |
| csrno = aia_xlate_vs_csrno(env, csrno); |
| |
| /* Find the iselect CSR based on CSR number */ |
| switch (csrno) { |
| case CSR_MISELECT: |
| iselect = &env->miselect; |
| break; |
| case CSR_SISELECT: |
| iselect = &env->siselect; |
| break; |
| case CSR_VSISELECT: |
| iselect = &env->vsiselect; |
| break; |
| default: |
| return RISCV_EXCP_ILLEGAL_INST; |
| }; |
| |
| if (val) { |
| *val = *iselect; |
| } |
| |
| wr_mask &= ISELECT_MASK; |
| if (wr_mask) { |
| *iselect = (*iselect & ~wr_mask) | (new_val & wr_mask); |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static int rmw_iprio(target_ulong xlen, |
| target_ulong iselect, uint8_t *iprio, |
| target_ulong *val, target_ulong new_val, |
| target_ulong wr_mask, int ext_irq_no) |
| { |
| int i, firq, nirqs; |
| target_ulong old_val; |
| |
| if (iselect < ISELECT_IPRIO0 || ISELECT_IPRIO15 < iselect) { |
| return -EINVAL; |
| } |
| if (xlen != 32 && iselect & 0x1) { |
| return -EINVAL; |
| } |
| |
| nirqs = 4 * (xlen / 32); |
| firq = ((iselect - ISELECT_IPRIO0) / (xlen / 32)) * (nirqs); |
| |
| old_val = 0; |
| for (i = 0; i < nirqs; i++) { |
| old_val |= ((target_ulong)iprio[firq + i]) << (IPRIO_IRQ_BITS * i); |
| } |
| |
| if (val) { |
| *val = old_val; |
| } |
| |
| if (wr_mask) { |
| new_val = (old_val & ~wr_mask) | (new_val & wr_mask); |
| for (i = 0; i < nirqs; i++) { |
| /* |
| * M-level and S-level external IRQ priority always read-only |
| * zero. This means default priority order is always preferred |
| * for M-level and S-level external IRQs. |
| */ |
| if ((firq + i) == ext_irq_no) { |
| continue; |
| } |
| iprio[firq + i] = (new_val >> (IPRIO_IRQ_BITS * i)) & 0xff; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static RISCVException rmw_xireg(CPURISCVState *env, int csrno, |
| target_ulong *val, target_ulong new_val, |
| target_ulong wr_mask) |
| { |
| bool virt, isel_reserved; |
| uint8_t *iprio; |
| int ret = -EINVAL; |
| target_ulong priv, isel, vgein; |
| |
| /* Translate CSR number for VS-mode */ |
| csrno = aia_xlate_vs_csrno(env, csrno); |
| |
| /* Decode register details from CSR number */ |
| virt = false; |
| isel_reserved = false; |
| switch (csrno) { |
| case CSR_MIREG: |
| iprio = env->miprio; |
| isel = env->miselect; |
| priv = PRV_M; |
| break; |
| case CSR_SIREG: |
| if (env->priv == PRV_S && env->mvien & MIP_SEIP && |
| env->siselect >= ISELECT_IMSIC_EIDELIVERY && |
| env->siselect <= ISELECT_IMSIC_EIE63) { |
| goto done; |
| } |
| iprio = env->siprio; |
| isel = env->siselect; |
| priv = PRV_S; |
| break; |
| case CSR_VSIREG: |
| iprio = env->hviprio; |
| isel = env->vsiselect; |
| priv = PRV_S; |
| virt = true; |
| break; |
| default: |
| goto done; |
| }; |
| |
| /* Find the selected guest interrupt file */ |
| vgein = (virt) ? get_field(env->hstatus, HSTATUS_VGEIN) : 0; |
| |
| if (ISELECT_IPRIO0 <= isel && isel <= ISELECT_IPRIO15) { |
| /* Local interrupt priority registers not available for VS-mode */ |
| if (!virt) { |
| ret = rmw_iprio(riscv_cpu_mxl_bits(env), |
| isel, iprio, val, new_val, wr_mask, |
| (priv == PRV_M) ? IRQ_M_EXT : IRQ_S_EXT); |
| } |
| } else if (ISELECT_IMSIC_FIRST <= isel && isel <= ISELECT_IMSIC_LAST) { |
| /* IMSIC registers only available when machine implements it. */ |
| if (env->aia_ireg_rmw_fn[priv]) { |
| /* Selected guest interrupt file should not be zero */ |
| if (virt && (!vgein || env->geilen < vgein)) { |
| goto done; |
| } |
| /* Call machine specific IMSIC register emulation */ |
| ret = env->aia_ireg_rmw_fn[priv](env->aia_ireg_rmw_fn_arg[priv], |
| AIA_MAKE_IREG(isel, priv, virt, vgein, |
| riscv_cpu_mxl_bits(env)), |
| val, new_val, wr_mask); |
| } |
| } else { |
| isel_reserved = true; |
| } |
| |
| done: |
| if (ret) { |
| return (env->virt_enabled && virt && !isel_reserved) ? |
| RISCV_EXCP_VIRT_INSTRUCTION_FAULT : RISCV_EXCP_ILLEGAL_INST; |
| } |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_xtopei(CPURISCVState *env, int csrno, |
| target_ulong *val, target_ulong new_val, |
| target_ulong wr_mask) |
| { |
| bool virt; |
| int ret = -EINVAL; |
| target_ulong priv, vgein; |
| |
| /* Translate CSR number for VS-mode */ |
| csrno = aia_xlate_vs_csrno(env, csrno); |
| |
| /* Decode register details from CSR number */ |
| virt = false; |
| switch (csrno) { |
| case CSR_MTOPEI: |
| priv = PRV_M; |
| break; |
| case CSR_STOPEI: |
| if (env->mvien & MIP_SEIP && env->priv == PRV_S) { |
| goto done; |
| } |
| priv = PRV_S; |
| break; |
| case CSR_VSTOPEI: |
| priv = PRV_S; |
| virt = true; |
| break; |
| default: |
| goto done; |
| }; |
| |
| /* IMSIC CSRs only available when machine implements IMSIC. */ |
| if (!env->aia_ireg_rmw_fn[priv]) { |
| goto done; |
| } |
| |
| /* Find the selected guest interrupt file */ |
| vgein = (virt) ? get_field(env->hstatus, HSTATUS_VGEIN) : 0; |
| |
| /* Selected guest interrupt file should be valid */ |
| if (virt && (!vgein || env->geilen < vgein)) { |
| goto done; |
| } |
| |
| /* Call machine specific IMSIC register emulation for TOPEI */ |
| ret = env->aia_ireg_rmw_fn[priv](env->aia_ireg_rmw_fn_arg[priv], |
| AIA_MAKE_IREG(ISELECT_IMSIC_TOPEI, priv, virt, vgein, |
| riscv_cpu_mxl_bits(env)), |
| val, new_val, wr_mask); |
| |
| done: |
| if (ret) { |
| return (env->virt_enabled && virt) ? |
| RISCV_EXCP_VIRT_INSTRUCTION_FAULT : RISCV_EXCP_ILLEGAL_INST; |
| } |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mtvec(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mtvec; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mtvec(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| /* bits [1:0] encode mode; 0 = direct, 1 = vectored, 2 >= reserved */ |
| if ((val & 3) < 2) { |
| env->mtvec = val; |
| } else { |
| qemu_log_mask(LOG_UNIMP, "CSR_MTVEC: reserved mode not supported\n"); |
| } |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mcountinhibit(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mcountinhibit; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mcountinhibit(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| int cidx; |
| PMUCTRState *counter; |
| RISCVCPU *cpu = env_archcpu(env); |
| |
| /* WARL register - disable unavailable counters; TM bit is always 0 */ |
| env->mcountinhibit = |
| val & (cpu->pmu_avail_ctrs | COUNTEREN_CY | COUNTEREN_IR); |
| |
| /* Check if any other counter is also monitoring cycles/instructions */ |
| for (cidx = 0; cidx < RV_MAX_MHPMCOUNTERS; cidx++) { |
| if (!get_field(env->mcountinhibit, BIT(cidx))) { |
| counter = &env->pmu_ctrs[cidx]; |
| counter->started = true; |
| } |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mcounteren(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mcounteren; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mcounteren(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| RISCVCPU *cpu = env_archcpu(env); |
| |
| /* WARL register - disable unavailable counters */ |
| env->mcounteren = val & (cpu->pmu_avail_ctrs | COUNTEREN_CY | COUNTEREN_TM | |
| COUNTEREN_IR); |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* Machine Trap Handling */ |
| static RISCVException read_mscratch_i128(CPURISCVState *env, int csrno, |
| Int128 *val) |
| { |
| *val = int128_make128(env->mscratch, env->mscratchh); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mscratch_i128(CPURISCVState *env, int csrno, |
| Int128 val) |
| { |
| env->mscratch = int128_getlo(val); |
| env->mscratchh = int128_gethi(val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mscratch(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mscratch; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mscratch(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->mscratch = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mepc(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mepc; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mepc(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->mepc = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mcause(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mcause; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mcause(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->mcause = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mtval(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mtval; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mtval(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->mtval = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* Execution environment configuration setup */ |
| static RISCVException read_menvcfg(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->menvcfg; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_menvcfg(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| const RISCVCPUConfig *cfg = riscv_cpu_cfg(env); |
| uint64_t mask = MENVCFG_FIOM | MENVCFG_CBIE | MENVCFG_CBCFE | MENVCFG_CBZE; |
| |
| if (riscv_cpu_mxl(env) == MXL_RV64) { |
| mask |= (cfg->ext_svpbmt ? MENVCFG_PBMTE : 0) | |
| (cfg->ext_sstc ? MENVCFG_STCE : 0) | |
| (cfg->ext_svadu ? MENVCFG_ADUE : 0); |
| } |
| env->menvcfg = (env->menvcfg & ~mask) | (val & mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_menvcfgh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->menvcfg >> 32; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_menvcfgh(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| const RISCVCPUConfig *cfg = riscv_cpu_cfg(env); |
| uint64_t mask = (cfg->ext_svpbmt ? MENVCFG_PBMTE : 0) | |
| (cfg->ext_sstc ? MENVCFG_STCE : 0) | |
| (cfg->ext_svadu ? MENVCFG_ADUE : 0); |
| uint64_t valh = (uint64_t)val << 32; |
| |
| env->menvcfg = (env->menvcfg & ~mask) | (valh & mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_senvcfg(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| RISCVException ret; |
| |
| ret = smstateen_acc_ok(env, 0, SMSTATEEN0_HSENVCFG); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| *val = env->senvcfg; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_senvcfg(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mask = SENVCFG_FIOM | SENVCFG_CBIE | SENVCFG_CBCFE | SENVCFG_CBZE; |
| RISCVException ret; |
| |
| ret = smstateen_acc_ok(env, 0, SMSTATEEN0_HSENVCFG); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| env->senvcfg = (env->senvcfg & ~mask) | (val & mask); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_henvcfg(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| RISCVException ret; |
| |
| ret = smstateen_acc_ok(env, 0, SMSTATEEN0_HSENVCFG); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| /* |
| * henvcfg.pbmte is read_only 0 when menvcfg.pbmte = 0 |
| * henvcfg.stce is read_only 0 when menvcfg.stce = 0 |
| * henvcfg.adue is read_only 0 when menvcfg.adue = 0 |
| */ |
| *val = env->henvcfg & (~(HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_ADUE) | |
| env->menvcfg); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_henvcfg(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mask = HENVCFG_FIOM | HENVCFG_CBIE | HENVCFG_CBCFE | HENVCFG_CBZE; |
| RISCVException ret; |
| |
| ret = smstateen_acc_ok(env, 0, SMSTATEEN0_HSENVCFG); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| if (riscv_cpu_mxl(env) == MXL_RV64) { |
| mask |= env->menvcfg & (HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_ADUE); |
| } |
| |
| env->henvcfg = (env->henvcfg & ~mask) | (val & mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_henvcfgh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| RISCVException ret; |
| |
| ret = smstateen_acc_ok(env, 0, SMSTATEEN0_HSENVCFG); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| *val = (env->henvcfg & (~(HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_ADUE) | |
| env->menvcfg)) >> 32; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_henvcfgh(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mask = env->menvcfg & (HENVCFG_PBMTE | HENVCFG_STCE | |
| HENVCFG_ADUE); |
| uint64_t valh = (uint64_t)val << 32; |
| RISCVException ret; |
| |
| ret = smstateen_acc_ok(env, 0, SMSTATEEN0_HSENVCFG); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| env->henvcfg = (env->henvcfg & ~mask) | (valh & mask); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mstateen(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mstateen[csrno - CSR_MSTATEEN0]; |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mstateen(CPURISCVState *env, int csrno, |
| uint64_t wr_mask, target_ulong new_val) |
| { |
| uint64_t *reg; |
| |
| reg = &env->mstateen[csrno - CSR_MSTATEEN0]; |
| *reg = (*reg & ~wr_mask) | (new_val & wr_mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mstateen0(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| uint64_t wr_mask = SMSTATEEN_STATEEN | SMSTATEEN0_HSENVCFG; |
| if (!riscv_has_ext(env, RVF)) { |
| wr_mask |= SMSTATEEN0_FCSR; |
| } |
| |
| if (env->priv_ver >= PRIV_VERSION_1_13_0) { |
| wr_mask |= SMSTATEEN0_P1P13; |
| } |
| |
| return write_mstateen(env, csrno, wr_mask, new_val); |
| } |
| |
| static RISCVException write_mstateen_1_3(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| return write_mstateen(env, csrno, SMSTATEEN_STATEEN, new_val); |
| } |
| |
| static RISCVException read_mstateenh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mstateen[csrno - CSR_MSTATEEN0H] >> 32; |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mstateenh(CPURISCVState *env, int csrno, |
| uint64_t wr_mask, target_ulong new_val) |
| { |
| uint64_t *reg, val; |
| |
| reg = &env->mstateen[csrno - CSR_MSTATEEN0H]; |
| val = (uint64_t)new_val << 32; |
| val |= *reg & 0xFFFFFFFF; |
| *reg = (*reg & ~wr_mask) | (val & wr_mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mstateen0h(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| uint64_t wr_mask = SMSTATEEN_STATEEN | SMSTATEEN0_HSENVCFG; |
| |
| if (env->priv_ver >= PRIV_VERSION_1_13_0) { |
| wr_mask |= SMSTATEEN0_P1P13; |
| } |
| |
| return write_mstateenh(env, csrno, wr_mask, new_val); |
| } |
| |
| static RISCVException write_mstateenh_1_3(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| return write_mstateenh(env, csrno, SMSTATEEN_STATEEN, new_val); |
| } |
| |
| static RISCVException read_hstateen(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| int index = csrno - CSR_HSTATEEN0; |
| |
| *val = env->hstateen[index] & env->mstateen[index]; |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hstateen(CPURISCVState *env, int csrno, |
| uint64_t mask, target_ulong new_val) |
| { |
| int index = csrno - CSR_HSTATEEN0; |
| uint64_t *reg, wr_mask; |
| |
| reg = &env->hstateen[index]; |
| wr_mask = env->mstateen[index] & mask; |
| *reg = (*reg & ~wr_mask) | (new_val & wr_mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hstateen0(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| uint64_t wr_mask = SMSTATEEN_STATEEN | SMSTATEEN0_HSENVCFG; |
| |
| if (!riscv_has_ext(env, RVF)) { |
| wr_mask |= SMSTATEEN0_FCSR; |
| } |
| |
| return write_hstateen(env, csrno, wr_mask, new_val); |
| } |
| |
| static RISCVException write_hstateen_1_3(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| return write_hstateen(env, csrno, SMSTATEEN_STATEEN, new_val); |
| } |
| |
| static RISCVException read_hstateenh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| int index = csrno - CSR_HSTATEEN0H; |
| |
| *val = (env->hstateen[index] >> 32) & (env->mstateen[index] >> 32); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hstateenh(CPURISCVState *env, int csrno, |
| uint64_t mask, target_ulong new_val) |
| { |
| int index = csrno - CSR_HSTATEEN0H; |
| uint64_t *reg, wr_mask, val; |
| |
| reg = &env->hstateen[index]; |
| val = (uint64_t)new_val << 32; |
| val |= *reg & 0xFFFFFFFF; |
| wr_mask = env->mstateen[index] & mask; |
| *reg = (*reg & ~wr_mask) | (val & wr_mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hstateen0h(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| uint64_t wr_mask = SMSTATEEN_STATEEN | SMSTATEEN0_HSENVCFG; |
| |
| return write_hstateenh(env, csrno, wr_mask, new_val); |
| } |
| |
| static RISCVException write_hstateenh_1_3(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| return write_hstateenh(env, csrno, SMSTATEEN_STATEEN, new_val); |
| } |
| |
| static RISCVException read_sstateen(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| bool virt = env->virt_enabled; |
| int index = csrno - CSR_SSTATEEN0; |
| |
| *val = env->sstateen[index] & env->mstateen[index]; |
| if (virt) { |
| *val &= env->hstateen[index]; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_sstateen(CPURISCVState *env, int csrno, |
| uint64_t mask, target_ulong new_val) |
| { |
| bool virt = env->virt_enabled; |
| int index = csrno - CSR_SSTATEEN0; |
| uint64_t wr_mask; |
| uint64_t *reg; |
| |
| wr_mask = env->mstateen[index] & mask; |
| if (virt) { |
| wr_mask &= env->hstateen[index]; |
| } |
| |
| reg = &env->sstateen[index]; |
| *reg = (*reg & ~wr_mask) | (new_val & wr_mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_sstateen0(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| uint64_t wr_mask = SMSTATEEN_STATEEN | SMSTATEEN0_HSENVCFG; |
| |
| if (!riscv_has_ext(env, RVF)) { |
| wr_mask |= SMSTATEEN0_FCSR; |
| } |
| |
| return write_sstateen(env, csrno, wr_mask, new_val); |
| } |
| |
| static RISCVException write_sstateen_1_3(CPURISCVState *env, int csrno, |
| target_ulong new_val) |
| { |
| return write_sstateen(env, csrno, SMSTATEEN_STATEEN, new_val); |
| } |
| |
| static RISCVException rmw_mip64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| uint64_t old_mip, mask = wr_mask & delegable_ints; |
| uint32_t gin; |
| |
| if (mask & MIP_SEIP) { |
| env->software_seip = new_val & MIP_SEIP; |
| new_val |= env->external_seip * MIP_SEIP; |
| } |
| |
| if (riscv_cpu_cfg(env)->ext_sstc && (env->priv == PRV_M) && |
| get_field(env->menvcfg, MENVCFG_STCE)) { |
| /* sstc extension forbids STIP & VSTIP to be writeable in mip */ |
| mask = mask & ~(MIP_STIP | MIP_VSTIP); |
| } |
| |
| if (mask) { |
| old_mip = riscv_cpu_update_mip(env, mask, (new_val & mask)); |
| } else { |
| old_mip = env->mip; |
| } |
| |
| if (csrno != CSR_HVIP) { |
| gin = get_field(env->hstatus, HSTATUS_VGEIN); |
| old_mip |= (env->hgeip & ((target_ulong)1 << gin)) ? MIP_VSEIP : 0; |
| old_mip |= env->vstime_irq ? MIP_VSTIP : 0; |
| } |
| |
| if (ret_val) { |
| *ret_val = old_mip; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_mip(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mip64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_miph(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mip64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * The function is written for two use-cases: |
| * 1- To access mvip csr as is for m-mode access. |
| * 2- To access sip as a combination of mip and mvip for s-mode. |
| * |
| * Both report bits 1, 5, 9 and 13:63 but with the exception of |
| * STIP being read-only zero in case of mvip when sstc extension |
| * is present. |
| * Also, sip needs to be read-only zero when both mideleg[i] and |
| * mvien[i] are zero but mvip needs to be an alias of mip. |
| */ |
| static RISCVException rmw_mvip64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| RISCVCPU *cpu = env_archcpu(env); |
| target_ulong ret_mip = 0; |
| RISCVException ret; |
| uint64_t old_mvip; |
| |
| /* |
| * mideleg[i] mvien[i] |
| * 0 0 No delegation. mvip[i] is alias of mip[i]. |
| * 0 1 mvip[i] becomes source of interrupt, mip bypassed. |
| * 1 X mip[i] is source of interrupt and mvip[i] aliases |
| * mip[i]. |
| * |
| * So alias condition would be for bits: |
| * ((S_MODE_INTERRUPTS | LOCAL_INTERRUPTS) & (mideleg | ~mvien)) | |
| * (!sstc & MIP_STIP) |
| * |
| * Non-alias condition will be for bits: |
| * (S_MODE_INTERRUPTS | LOCAL_INTERRUPTS) & (~mideleg & mvien) |
| * |
| * alias_mask denotes the bits that come from mip nalias_mask denotes bits |
| * that come from hvip. |
| */ |
| uint64_t alias_mask = ((S_MODE_INTERRUPTS | LOCAL_INTERRUPTS) & |
| (env->mideleg | ~env->mvien)) | MIP_STIP; |
| uint64_t nalias_mask = (S_MODE_INTERRUPTS | LOCAL_INTERRUPTS) & |
| (~env->mideleg & env->mvien); |
| uint64_t wr_mask_mvip; |
| uint64_t wr_mask_mip; |
| |
| /* |
| * mideleg[i] mvien[i] |
| * 0 0 sip[i] read-only zero. |
| * 0 1 sip[i] alias of mvip[i]. |
| * 1 X sip[i] alias of mip[i]. |
| * |
| * Both alias and non-alias mask remain same for sip except for bits |
| * which are zero in both mideleg and mvien. |
| */ |
| if (csrno == CSR_SIP) { |
| /* Remove bits that are zero in both mideleg and mvien. */ |
| alias_mask &= (env->mideleg | env->mvien); |
| nalias_mask &= (env->mideleg | env->mvien); |
| } |
| |
| /* |
| * If sstc is present, mvip.STIP is not an alias of mip.STIP so clear |
| * that our in mip returned value. |
| */ |
| if (cpu->cfg.ext_sstc && (env->priv == PRV_M) && |
| get_field(env->menvcfg, MENVCFG_STCE)) { |
| alias_mask &= ~MIP_STIP; |
| } |
| |
| wr_mask_mip = wr_mask & alias_mask & mvip_writable_mask; |
| wr_mask_mvip = wr_mask & nalias_mask & mvip_writable_mask; |
| |
| /* |
| * For bits set in alias_mask, mvip needs to be alias of mip, so forward |
| * this to rmw_mip. |
| */ |
| ret = rmw_mip(env, CSR_MIP, &ret_mip, new_val, wr_mask_mip); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| old_mvip = env->mvip; |
| |
| /* |
| * Write to mvip. Update only non-alias bits. Alias bits were updated |
| * in mip in rmw_mip above. |
| */ |
| if (wr_mask_mvip) { |
| env->mvip = (env->mvip & ~wr_mask_mvip) | (new_val & wr_mask_mvip); |
| |
| /* |
| * Given mvip is separate source from mip, we need to trigger interrupt |
| * from here separately. Normally this happen from riscv_cpu_update_mip. |
| */ |
| riscv_cpu_interrupt(env); |
| } |
| |
| if (ret_val) { |
| ret_mip &= alias_mask; |
| old_mvip &= nalias_mask; |
| |
| *ret_val = old_mvip | ret_mip; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_mvip(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mvip64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_mviph(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mvip64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| /* Supervisor Trap Setup */ |
| static RISCVException read_sstatus_i128(CPURISCVState *env, int csrno, |
| Int128 *val) |
| { |
| uint64_t mask = sstatus_v1_10_mask; |
| uint64_t sstatus = env->mstatus & mask; |
| if (env->xl != MXL_RV32 || env->debugger) { |
| mask |= SSTATUS64_UXL; |
| } |
| |
| *val = int128_make128(sstatus, add_status_sd(MXL_RV128, sstatus)); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_sstatus(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| target_ulong mask = (sstatus_v1_10_mask); |
| if (env->xl != MXL_RV32 || env->debugger) { |
| mask |= SSTATUS64_UXL; |
| } |
| /* TODO: Use SXL not MXL. */ |
| *val = add_status_sd(riscv_cpu_mxl(env), env->mstatus & mask); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_sstatus(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| target_ulong mask = (sstatus_v1_10_mask); |
| |
| if (env->xl != MXL_RV32 || env->debugger) { |
| if ((val & SSTATUS64_UXL) != 0) { |
| mask |= SSTATUS64_UXL; |
| } |
| } |
| target_ulong newval = (env->mstatus & ~mask) | (val & mask); |
| return write_mstatus(env, CSR_MSTATUS, newval); |
| } |
| |
| static RISCVException rmw_vsie64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| uint64_t alias_mask = (LOCAL_INTERRUPTS | VS_MODE_INTERRUPTS) & |
| env->hideleg; |
| uint64_t nalias_mask = LOCAL_INTERRUPTS & (~env->hideleg & env->hvien); |
| uint64_t rval, rval_vs, vsbits; |
| uint64_t wr_mask_vsie; |
| uint64_t wr_mask_mie; |
| RISCVException ret; |
| |
| /* Bring VS-level bits to correct position */ |
| vsbits = new_val & (VS_MODE_INTERRUPTS >> 1); |
| new_val &= ~(VS_MODE_INTERRUPTS >> 1); |
| new_val |= vsbits << 1; |
| |
| vsbits = wr_mask & (VS_MODE_INTERRUPTS >> 1); |
| wr_mask &= ~(VS_MODE_INTERRUPTS >> 1); |
| wr_mask |= vsbits << 1; |
| |
| wr_mask_mie = wr_mask & alias_mask; |
| wr_mask_vsie = wr_mask & nalias_mask; |
| |
| ret = rmw_mie64(env, csrno, &rval, new_val, wr_mask_mie); |
| |
| rval_vs = env->vsie & nalias_mask; |
| env->vsie = (env->vsie & ~wr_mask_vsie) | (new_val & wr_mask_vsie); |
| |
| if (ret_val) { |
| rval &= alias_mask; |
| vsbits = rval & VS_MODE_INTERRUPTS; |
| rval &= ~VS_MODE_INTERRUPTS; |
| *ret_val = rval | (vsbits >> 1) | rval_vs; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_vsie(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_vsie64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_vsieh(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_vsie64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_sie64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| uint64_t nalias_mask = (S_MODE_INTERRUPTS | LOCAL_INTERRUPTS) & |
| (~env->mideleg & env->mvien); |
| uint64_t alias_mask = (S_MODE_INTERRUPTS | LOCAL_INTERRUPTS) & env->mideleg; |
| uint64_t sie_mask = wr_mask & nalias_mask; |
| RISCVException ret; |
| |
| /* |
| * mideleg[i] mvien[i] |
| * 0 0 sie[i] read-only zero. |
| * 0 1 sie[i] is a separate writable bit. |
| * 1 X sie[i] alias of mie[i]. |
| * |
| * Both alias and non-alias mask remain same for sip except for bits |
| * which are zero in both mideleg and mvien. |
| */ |
| if (env->virt_enabled) { |
| if (env->hvictl & HVICTL_VTI) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| ret = rmw_vsie64(env, CSR_VSIE, ret_val, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val &= alias_mask; |
| } |
| } else { |
| ret = rmw_mie64(env, csrno, ret_val, new_val, wr_mask & alias_mask); |
| if (ret_val) { |
| *ret_val &= alias_mask; |
| *ret_val |= env->sie & nalias_mask; |
| } |
| |
| env->sie = (env->sie & ~sie_mask) | (new_val & sie_mask); |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_sie(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_sie64(env, csrno, &rval, new_val, wr_mask); |
| if (ret == RISCV_EXCP_NONE && ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_sieh(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_sie64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException read_stvec(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->stvec; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_stvec(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| /* bits [1:0] encode mode; 0 = direct, 1 = vectored, 2 >= reserved */ |
| if ((val & 3) < 2) { |
| env->stvec = val; |
| } else { |
| qemu_log_mask(LOG_UNIMP, "CSR_STVEC: reserved mode not supported\n"); |
| } |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_scounteren(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->scounteren; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_scounteren(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->scounteren = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* Supervisor Trap Handling */ |
| static RISCVException read_sscratch_i128(CPURISCVState *env, int csrno, |
| Int128 *val) |
| { |
| *val = int128_make128(env->sscratch, env->sscratchh); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_sscratch_i128(CPURISCVState *env, int csrno, |
| Int128 val) |
| { |
| env->sscratch = int128_getlo(val); |
| env->sscratchh = int128_gethi(val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_sscratch(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->sscratch; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_sscratch(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->sscratch = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_sepc(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->sepc; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_sepc(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->sepc = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_scause(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->scause; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_scause(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->scause = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_stval(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->stval; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_stval(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->stval = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_hvip64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask); |
| |
| static RISCVException rmw_vsip64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| RISCVException ret; |
| uint64_t rval, mask = env->hideleg & VS_MODE_INTERRUPTS; |
| uint64_t vsbits; |
| |
| /* Add virtualized bits into vsip mask. */ |
| mask |= env->hvien & ~env->hideleg; |
| |
| /* Bring VS-level bits to correct position */ |
| vsbits = new_val & (VS_MODE_INTERRUPTS >> 1); |
| new_val &= ~(VS_MODE_INTERRUPTS >> 1); |
| new_val |= vsbits << 1; |
| vsbits = wr_mask & (VS_MODE_INTERRUPTS >> 1); |
| wr_mask &= ~(VS_MODE_INTERRUPTS >> 1); |
| wr_mask |= vsbits << 1; |
| |
| ret = rmw_hvip64(env, csrno, &rval, new_val, |
| wr_mask & mask & vsip_writable_mask); |
| if (ret_val) { |
| rval &= mask; |
| vsbits = rval & VS_MODE_INTERRUPTS; |
| rval &= ~VS_MODE_INTERRUPTS; |
| *ret_val = rval | (vsbits >> 1); |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_vsip(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_vsip64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_vsiph(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_vsip64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_sip64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| RISCVException ret; |
| uint64_t mask = (env->mideleg | env->mvien) & sip_writable_mask; |
| |
| if (env->virt_enabled) { |
| if (env->hvictl & HVICTL_VTI) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| ret = rmw_vsip64(env, CSR_VSIP, ret_val, new_val, wr_mask); |
| } else { |
| ret = rmw_mvip64(env, csrno, ret_val, new_val, wr_mask & mask); |
| } |
| |
| if (ret_val) { |
| *ret_val &= (env->mideleg | env->mvien) & |
| (S_MODE_INTERRUPTS | LOCAL_INTERRUPTS); |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_sip(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_sip64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_siph(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_sip64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| /* Supervisor Protection and Translation */ |
| static RISCVException read_satp(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| if (!riscv_cpu_cfg(env)->mmu) { |
| *val = 0; |
| return RISCV_EXCP_NONE; |
| } |
| *val = env->satp; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_satp(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| if (!riscv_cpu_cfg(env)->mmu) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| env->satp = legalize_xatp(env, env->satp, val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vstopi(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| int irq, ret; |
| target_ulong topei; |
| uint64_t vseip, vsgein; |
| uint32_t iid, iprio, hviid, hviprio, gein; |
| uint32_t s, scount = 0, siid[VSTOPI_NUM_SRCS], siprio[VSTOPI_NUM_SRCS]; |
| |
| gein = get_field(env->hstatus, HSTATUS_VGEIN); |
| hviid = get_field(env->hvictl, HVICTL_IID); |
| hviprio = get_field(env->hvictl, HVICTL_IPRIO); |
| |
| if (gein) { |
| vsgein = (env->hgeip & (1ULL << gein)) ? MIP_VSEIP : 0; |
| vseip = env->mie & (env->mip | vsgein) & MIP_VSEIP; |
| if (gein <= env->geilen && vseip) { |
| siid[scount] = IRQ_S_EXT; |
| siprio[scount] = IPRIO_MMAXIPRIO + 1; |
| if (env->aia_ireg_rmw_fn[PRV_S]) { |
| /* |
| * Call machine specific IMSIC register emulation for |
| * reading TOPEI. |
| */ |
| ret = env->aia_ireg_rmw_fn[PRV_S]( |
| env->aia_ireg_rmw_fn_arg[PRV_S], |
| AIA_MAKE_IREG(ISELECT_IMSIC_TOPEI, PRV_S, true, gein, |
| riscv_cpu_mxl_bits(env)), |
| &topei, 0, 0); |
| if (!ret && topei) { |
| siprio[scount] = topei & IMSIC_TOPEI_IPRIO_MASK; |
| } |
| } |
| scount++; |
| } |
| } else { |
| if (hviid == IRQ_S_EXT && hviprio) { |
| siid[scount] = IRQ_S_EXT; |
| siprio[scount] = hviprio; |
| scount++; |
| } |
| } |
| |
| if (env->hvictl & HVICTL_VTI) { |
| if (hviid != IRQ_S_EXT) { |
| siid[scount] = hviid; |
| siprio[scount] = hviprio; |
| scount++; |
| } |
| } else { |
| irq = riscv_cpu_vsirq_pending(env); |
| if (irq != IRQ_S_EXT && 0 < irq && irq <= 63) { |
| siid[scount] = irq; |
| siprio[scount] = env->hviprio[irq]; |
| scount++; |
| } |
| } |
| |
| iid = 0; |
| iprio = UINT_MAX; |
| for (s = 0; s < scount; s++) { |
| if (siprio[s] < iprio) { |
| iid = siid[s]; |
| iprio = siprio[s]; |
| } |
| } |
| |
| if (iid) { |
| if (env->hvictl & HVICTL_IPRIOM) { |
| if (iprio > IPRIO_MMAXIPRIO) { |
| iprio = IPRIO_MMAXIPRIO; |
| } |
| if (!iprio) { |
| if (riscv_cpu_default_priority(iid) > IPRIO_DEFAULT_S) { |
| iprio = IPRIO_MMAXIPRIO; |
| } |
| } |
| } else { |
| iprio = 1; |
| } |
| } else { |
| iprio = 0; |
| } |
| |
| *val = (iid & TOPI_IID_MASK) << TOPI_IID_SHIFT; |
| *val |= iprio; |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_stopi(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| int irq; |
| uint8_t iprio; |
| |
| if (env->virt_enabled) { |
| return read_vstopi(env, CSR_VSTOPI, val); |
| } |
| |
| irq = riscv_cpu_sirq_pending(env); |
| if (irq <= 0 || irq > 63) { |
| *val = 0; |
| } else { |
| iprio = env->siprio[irq]; |
| if (!iprio) { |
| if (riscv_cpu_default_priority(irq) > IPRIO_DEFAULT_S) { |
| iprio = IPRIO_MMAXIPRIO; |
| } |
| } |
| *val = (irq & TOPI_IID_MASK) << TOPI_IID_SHIFT; |
| *val |= iprio; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* Hypervisor Extensions */ |
| static RISCVException read_hstatus(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->hstatus; |
| if (riscv_cpu_mxl(env) != MXL_RV32) { |
| /* We only support 64-bit VSXL */ |
| *val = set_field(*val, HSTATUS_VSXL, 2); |
| } |
| /* We only support little endian */ |
| *val = set_field(*val, HSTATUS_VSBE, 0); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hstatus(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->hstatus = val; |
| if (riscv_cpu_mxl(env) != MXL_RV32 && get_field(val, HSTATUS_VSXL) != 2) { |
| qemu_log_mask(LOG_UNIMP, |
| "QEMU does not support mixed HSXLEN options."); |
| } |
| if (get_field(val, HSTATUS_VSBE) != 0) { |
| qemu_log_mask(LOG_UNIMP, "QEMU does not support big endian guests."); |
| } |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hedeleg(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->hedeleg; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hedeleg(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->hedeleg = val & vs_delegable_excps; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hedelegh(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| RISCVException ret; |
| ret = smstateen_acc_ok(env, 0, SMSTATEEN0_P1P13); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| /* Reserved, now read zero */ |
| *val = 0; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hedelegh(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| RISCVException ret; |
| ret = smstateen_acc_ok(env, 0, SMSTATEEN0_P1P13); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| /* Reserved, now write ignore */ |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_hvien64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| uint64_t mask = wr_mask & hvien_writable_mask; |
| |
| if (ret_val) { |
| *ret_val = env->hvien; |
| } |
| |
| env->hvien = (env->hvien & ~mask) | (new_val & mask); |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_hvien(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_hvien64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_hvienh(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_hvien64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_hideleg64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| uint64_t mask = wr_mask & vs_delegable_ints; |
| |
| if (ret_val) { |
| *ret_val = env->hideleg & vs_delegable_ints; |
| } |
| |
| env->hideleg = (env->hideleg & ~mask) | (new_val & mask); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException rmw_hideleg(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_hideleg64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_hidelegh(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_hideleg64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * The function is written for two use-cases: |
| * 1- To access hvip csr as is for HS-mode access. |
| * 2- To access vsip as a combination of hvip, and mip for vs-mode. |
| * |
| * Both report bits 2, 6, 10 and 13:63. |
| * vsip needs to be read-only zero when both hideleg[i] and |
| * hvien[i] are zero. |
| */ |
| static RISCVException rmw_hvip64(CPURISCVState *env, int csrno, |
| uint64_t *ret_val, |
| uint64_t new_val, uint64_t wr_mask) |
| { |
| RISCVException ret; |
| uint64_t old_hvip; |
| uint64_t ret_mip; |
| |
| /* |
| * For bits 10, 6 and 2, vsip[i] is an alias of hip[i]. These bits are |
| * present in hip, hvip and mip. Where mip[i] is alias of hip[i] and hvip[i] |
| * is OR'ed in hip[i] to inject virtual interrupts from hypervisor. These |
| * bits are actually being maintained in mip so we read them from there. |
| * This way we have a single source of truth and allows for easier |
| * implementation. |
| * |
| * For bits 13:63 we have: |
| * |
| * hideleg[i] hvien[i] |
| * 0 0 No delegation. vsip[i] readonly zero. |
| * 0 1 vsip[i] is alias of hvip[i], sip bypassed. |
| * 1 X vsip[i] is alias of sip[i], hvip bypassed. |
| * |
| * alias_mask denotes the bits that come from sip (mip here given we |
| * maintain all bits there). nalias_mask denotes bits that come from |
| * hvip. |
| */ |
| uint64_t alias_mask = (env->hideleg | ~env->hvien) | VS_MODE_INTERRUPTS; |
| uint64_t nalias_mask = (~env->hideleg & env->hvien); |
| uint64_t wr_mask_hvip; |
| uint64_t wr_mask_mip; |
| |
| /* |
| * Both alias and non-alias mask remain same for vsip except: |
| * 1- For VS* bits if they are zero in hideleg. |
| * 2- For 13:63 bits if they are zero in both hideleg and hvien. |
| */ |
| if (csrno == CSR_VSIP) { |
| /* zero-out VS* bits that are not delegated to VS mode. */ |
| alias_mask &= (env->hideleg | ~VS_MODE_INTERRUPTS); |
| |
| /* |
| * zero-out 13:63 bits that are zero in both hideleg and hvien. |
| * nalias_mask mask can not contain any VS* bits so only second |
| * condition applies on it. |
| */ |
| nalias_mask &= (env->hideleg | env->hvien); |
| alias_mask &= (env->hideleg | env->hvien); |
| } |
| |
| wr_mask_hvip = wr_mask & nalias_mask & hvip_writable_mask; |
| wr_mask_mip = wr_mask & alias_mask & hvip_writable_mask; |
| |
| /* Aliased bits, bits 10, 6, 2 need to come from mip. */ |
| ret = rmw_mip64(env, csrno, &ret_mip, new_val, wr_mask_mip); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| old_hvip = env->hvip; |
| |
| if (wr_mask_hvip) { |
| env->hvip = (env->hvip & ~wr_mask_hvip) | (new_val & wr_mask_hvip); |
| |
| /* |
| * Given hvip is separate source from mip, we need to trigger interrupt |
| * from here separately. Normally this happen from riscv_cpu_update_mip. |
| */ |
| riscv_cpu_interrupt(env); |
| } |
| |
| if (ret_val) { |
| /* Only take VS* bits from mip. */ |
| ret_mip &= alias_mask; |
| |
| /* Take in non-delegated 13:63 bits from hvip. */ |
| old_hvip &= nalias_mask; |
| |
| *ret_val = ret_mip | old_hvip; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_hvip(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_hvip64(env, csrno, &rval, new_val, wr_mask); |
| if (ret_val) { |
| *ret_val = rval; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_hviph(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_hvip64(env, csrno, &rval, |
| ((uint64_t)new_val) << 32, ((uint64_t)wr_mask) << 32); |
| if (ret_val) { |
| *ret_val = rval >> 32; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException rmw_hip(CPURISCVState *env, int csrno, |
| target_ulong *ret_value, |
| target_ulong new_value, target_ulong write_mask) |
| { |
| int ret = rmw_mip(env, csrno, ret_value, new_value, |
| write_mask & hip_writable_mask); |
| |
| if (ret_value) { |
| *ret_value &= HS_MODE_INTERRUPTS; |
| } |
| return ret; |
| } |
| |
| static RISCVException rmw_hie(CPURISCVState *env, int csrno, |
| target_ulong *ret_val, |
| target_ulong new_val, target_ulong wr_mask) |
| { |
| uint64_t rval; |
| RISCVException ret; |
| |
| ret = rmw_mie64(env, csrno, &rval, new_val, wr_mask & HS_MODE_INTERRUPTS); |
| if (ret_val) { |
| *ret_val = rval & HS_MODE_INTERRUPTS; |
| } |
| |
| return ret; |
| } |
| |
| static RISCVException read_hcounteren(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->hcounteren; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hcounteren(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->hcounteren = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hgeie(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| if (val) { |
| *val = env->hgeie; |
| } |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hgeie(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| /* Only GEILEN:1 bits implemented and BIT0 is never implemented */ |
| val &= ((((target_ulong)1) << env->geilen) - 1) << 1; |
| env->hgeie = val; |
| /* Update mip.SGEIP bit */ |
| riscv_cpu_update_mip(env, MIP_SGEIP, |
| BOOL_TO_MASK(!!(env->hgeie & env->hgeip))); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_htval(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->htval; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_htval(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->htval = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_htinst(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->htinst; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_htinst(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hgeip(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| if (val) { |
| *val = env->hgeip; |
| } |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hgatp(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->hgatp; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hgatp(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->hgatp = legalize_xatp(env, env->hgatp, val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_htimedelta(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| if (!env->rdtime_fn) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| *val = env->htimedelta; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_htimedelta(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| if (!env->rdtime_fn) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| if (riscv_cpu_mxl(env) == MXL_RV32) { |
| env->htimedelta = deposit64(env->htimedelta, 0, 32, (uint64_t)val); |
| } else { |
| env->htimedelta = val; |
| } |
| |
| if (riscv_cpu_cfg(env)->ext_sstc && env->rdtime_fn) { |
| riscv_timer_write_timecmp(env, env->vstimer, env->vstimecmp, |
| env->htimedelta, MIP_VSTIP); |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_htimedeltah(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| if (!env->rdtime_fn) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| *val = env->htimedelta >> 32; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_htimedeltah(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| if (!env->rdtime_fn) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| env->htimedelta = deposit64(env->htimedelta, 32, 32, (uint64_t)val); |
| |
| if (riscv_cpu_cfg(env)->ext_sstc && env->rdtime_fn) { |
| riscv_timer_write_timecmp(env, env->vstimer, env->vstimecmp, |
| env->htimedelta, MIP_VSTIP); |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hvictl(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->hvictl; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hvictl(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->hvictl = val & HVICTL_VALID_MASK; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hvipriox(CPURISCVState *env, int first_index, |
| uint8_t *iprio, target_ulong *val) |
| { |
| int i, irq, rdzero, num_irqs = 4 * (riscv_cpu_mxl_bits(env) / 32); |
| |
| /* First index has to be a multiple of number of irqs per register */ |
| if (first_index % num_irqs) { |
| return (env->virt_enabled) ? |
| RISCV_EXCP_VIRT_INSTRUCTION_FAULT : RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| /* Fill-up return value */ |
| *val = 0; |
| for (i = 0; i < num_irqs; i++) { |
| if (riscv_cpu_hviprio_index2irq(first_index + i, &irq, &rdzero)) { |
| continue; |
| } |
| if (rdzero) { |
| continue; |
| } |
| *val |= ((target_ulong)iprio[irq]) << (i * 8); |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_hvipriox(CPURISCVState *env, int first_index, |
| uint8_t *iprio, target_ulong val) |
| { |
| int i, irq, rdzero, num_irqs = 4 * (riscv_cpu_mxl_bits(env) / 32); |
| |
| /* First index has to be a multiple of number of irqs per register */ |
| if (first_index % num_irqs) { |
| return (env->virt_enabled) ? |
| RISCV_EXCP_VIRT_INSTRUCTION_FAULT : RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| /* Fill-up priority array */ |
| for (i = 0; i < num_irqs; i++) { |
| if (riscv_cpu_hviprio_index2irq(first_index + i, &irq, &rdzero)) { |
| continue; |
| } |
| if (rdzero) { |
| iprio[irq] = 0; |
| } else { |
| iprio[irq] = (val >> (i * 8)) & 0xff; |
| } |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_hviprio1(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| return read_hvipriox(env, 0, env->hviprio, val); |
| } |
| |
| static RISCVException write_hviprio1(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| return write_hvipriox(env, 0, env->hviprio, val); |
| } |
| |
| static RISCVException read_hviprio1h(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| return read_hvipriox(env, 4, env->hviprio, val); |
| } |
| |
| static RISCVException write_hviprio1h(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| return write_hvipriox(env, 4, env->hviprio, val); |
| } |
| |
| static RISCVException read_hviprio2(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| return read_hvipriox(env, 8, env->hviprio, val); |
| } |
| |
| static RISCVException write_hviprio2(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| return write_hvipriox(env, 8, env->hviprio, val); |
| } |
| |
| static RISCVException read_hviprio2h(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| return read_hvipriox(env, 12, env->hviprio, val); |
| } |
| |
| static RISCVException write_hviprio2h(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| return write_hvipriox(env, 12, env->hviprio, val); |
| } |
| |
| /* Virtual CSR Registers */ |
| static RISCVException read_vsstatus(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vsstatus; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vsstatus(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mask = (target_ulong)-1; |
| if ((val & VSSTATUS64_UXL) == 0) { |
| mask &= ~VSSTATUS64_UXL; |
| } |
| env->vsstatus = (env->vsstatus & ~mask) | (uint64_t)val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vstvec(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vstvec; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vstvec(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| /* bits [1:0] encode mode; 0 = direct, 1 = vectored, 2 >= reserved */ |
| if ((val & 3) < 2) { |
| env->vstvec = val; |
| } else { |
| qemu_log_mask(LOG_UNIMP, "CSR_VSTVEC: reserved mode not supported\n"); |
| } |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vsscratch(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vsscratch; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vsscratch(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->vsscratch = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vsepc(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vsepc; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vsepc(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->vsepc = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vscause(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vscause; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vscause(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->vscause = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vstval(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vstval; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vstval(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->vstval = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_vsatp(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->vsatp; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_vsatp(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->vsatp = legalize_xatp(env, env->vsatp, val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mtval2(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mtval2; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mtval2(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->mtval2 = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mtinst(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mtinst; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mtinst(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->mtinst = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* Physical Memory Protection */ |
| static RISCVException read_mseccfg(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = mseccfg_csr_read(env); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mseccfg(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| mseccfg_csr_write(env, val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_pmpcfg(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| uint32_t reg_index = csrno - CSR_PMPCFG0; |
| |
| *val = pmpcfg_csr_read(env, reg_index); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_pmpcfg(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint32_t reg_index = csrno - CSR_PMPCFG0; |
| |
| pmpcfg_csr_write(env, reg_index, val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_pmpaddr(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = pmpaddr_csr_read(env, csrno - CSR_PMPADDR0); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_pmpaddr(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| pmpaddr_csr_write(env, csrno - CSR_PMPADDR0, val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_tselect(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = tselect_csr_read(env); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_tselect(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| tselect_csr_write(env, val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_tdata(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| /* return 0 in tdata1 to end the trigger enumeration */ |
| if (env->trigger_cur >= RV_MAX_TRIGGERS && csrno == CSR_TDATA1) { |
| *val = 0; |
| return RISCV_EXCP_NONE; |
| } |
| |
| if (!tdata_available(env, csrno - CSR_TDATA1)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| *val = tdata_csr_read(env, csrno - CSR_TDATA1); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_tdata(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| if (!tdata_available(env, csrno - CSR_TDATA1)) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| tdata_csr_write(env, csrno - CSR_TDATA1, val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_tinfo(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = tinfo_csr_read(env); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mcontext(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mcontext; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mcontext(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| bool rv32 = riscv_cpu_mxl(env) == MXL_RV32 ? true : false; |
| int32_t mask; |
| |
| if (riscv_has_ext(env, RVH)) { |
| /* Spec suggest 7-bit for RV32 and 14-bit for RV64 w/ H extension */ |
| mask = rv32 ? MCONTEXT32_HCONTEXT : MCONTEXT64_HCONTEXT; |
| } else { |
| /* Spec suggest 6-bit for RV32 and 13-bit for RV64 w/o H extension */ |
| mask = rv32 ? MCONTEXT32 : MCONTEXT64; |
| } |
| |
| env->mcontext = val & mask; |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* |
| * Functions to access Pointer Masking feature registers |
| * We have to check if current priv lvl could modify |
| * csr in given mode |
| */ |
| static bool check_pm_current_disabled(CPURISCVState *env, int csrno) |
| { |
| int csr_priv = get_field(csrno, 0x300); |
| int pm_current; |
| |
| if (env->debugger) { |
| return false; |
| } |
| /* |
| * If priv lvls differ that means we're accessing csr from higher priv lvl, |
| * so allow the access |
| */ |
| if (env->priv != csr_priv) { |
| return false; |
| } |
| switch (env->priv) { |
| case PRV_M: |
| pm_current = get_field(env->mmte, M_PM_CURRENT); |
| break; |
| case PRV_S: |
| pm_current = get_field(env->mmte, S_PM_CURRENT); |
| break; |
| case PRV_U: |
| pm_current = get_field(env->mmte, U_PM_CURRENT); |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| /* It's same priv lvl, so we allow to modify csr only if pm.current==1 */ |
| return !pm_current; |
| } |
| |
| static RISCVException read_mmte(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mmte & MMTE_MASK; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mmte(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mstatus; |
| target_ulong wpri_val = val & MMTE_MASK; |
| |
| if (val != wpri_val) { |
| qemu_log_mask(LOG_GUEST_ERROR, "%s" TARGET_FMT_lx " %s" |
| TARGET_FMT_lx "\n", "MMTE: WPRI violation written 0x", |
| val, "vs expected 0x", wpri_val); |
| } |
| /* for machine mode pm.current is hardwired to 1 */ |
| wpri_val |= MMTE_M_PM_CURRENT; |
| |
| /* hardwiring pm.instruction bit to 0, since it's not supported yet */ |
| wpri_val &= ~(MMTE_M_PM_INSN | MMTE_S_PM_INSN | MMTE_U_PM_INSN); |
| env->mmte = wpri_val | EXT_STATUS_DIRTY; |
| riscv_cpu_update_mask(env); |
| |
| /* Set XS and SD bits, since PM CSRs are dirty */ |
| mstatus = env->mstatus | MSTATUS_XS; |
| write_mstatus(env, csrno, mstatus); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_smte(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mmte & SMTE_MASK; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_smte(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| target_ulong wpri_val = val & SMTE_MASK; |
| |
| if (val != wpri_val) { |
| qemu_log_mask(LOG_GUEST_ERROR, "%s" TARGET_FMT_lx " %s" |
| TARGET_FMT_lx "\n", "SMTE: WPRI violation written 0x", |
| val, "vs expected 0x", wpri_val); |
| } |
| |
| /* if pm.current==0 we can't modify current PM CSRs */ |
| if (check_pm_current_disabled(env, csrno)) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| wpri_val |= (env->mmte & ~SMTE_MASK); |
| write_mmte(env, csrno, wpri_val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_umte(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mmte & UMTE_MASK; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_umte(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| target_ulong wpri_val = val & UMTE_MASK; |
| |
| if (val != wpri_val) { |
| qemu_log_mask(LOG_GUEST_ERROR, "%s" TARGET_FMT_lx " %s" |
| TARGET_FMT_lx "\n", "UMTE: WPRI violation written 0x", |
| val, "vs expected 0x", wpri_val); |
| } |
| |
| if (check_pm_current_disabled(env, csrno)) { |
| return RISCV_EXCP_NONE; |
| } |
| |
| wpri_val |= (env->mmte & ~UMTE_MASK); |
| write_mmte(env, csrno, wpri_val); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mpmmask(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mpmmask; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mpmmask(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mstatus; |
| |
| env->mpmmask = val; |
| if ((cpu_address_mode(env) == PRV_M) && (env->mmte & M_PM_ENABLE)) { |
| env->cur_pmmask = val; |
| } |
| env->mmte |= EXT_STATUS_DIRTY; |
| |
| /* Set XS and SD bits, since PM CSRs are dirty */ |
| mstatus = env->mstatus | MSTATUS_XS; |
| write_mstatus(env, csrno, mstatus); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_spmmask(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->spmmask; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_spmmask(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mstatus; |
| |
| /* if pm.current==0 we can't modify current PM CSRs */ |
| if (check_pm_current_disabled(env, csrno)) { |
| return RISCV_EXCP_NONE; |
| } |
| env->spmmask = val; |
| if ((cpu_address_mode(env) == PRV_S) && (env->mmte & S_PM_ENABLE)) { |
| env->cur_pmmask = val; |
| if (cpu_get_xl(env, PRV_S) == MXL_RV32) { |
| env->cur_pmmask &= UINT32_MAX; |
| } |
| } |
| env->mmte |= EXT_STATUS_DIRTY; |
| |
| /* Set XS and SD bits, since PM CSRs are dirty */ |
| mstatus = env->mstatus | MSTATUS_XS; |
| write_mstatus(env, csrno, mstatus); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_upmmask(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->upmmask; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_upmmask(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mstatus; |
| |
| /* if pm.current==0 we can't modify current PM CSRs */ |
| if (check_pm_current_disabled(env, csrno)) { |
| return RISCV_EXCP_NONE; |
| } |
| env->upmmask = val; |
| if ((cpu_address_mode(env) == PRV_U) && (env->mmte & U_PM_ENABLE)) { |
| env->cur_pmmask = val; |
| if (cpu_get_xl(env, PRV_U) == MXL_RV32) { |
| env->cur_pmmask &= UINT32_MAX; |
| } |
| } |
| env->mmte |= EXT_STATUS_DIRTY; |
| |
| /* Set XS and SD bits, since PM CSRs are dirty */ |
| mstatus = env->mstatus | MSTATUS_XS; |
| write_mstatus(env, csrno, mstatus); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_mpmbase(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->mpmbase; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_mpmbase(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mstatus; |
| |
| env->mpmbase = val; |
| if ((cpu_address_mode(env) == PRV_M) && (env->mmte & M_PM_ENABLE)) { |
| env->cur_pmbase = val; |
| } |
| env->mmte |= EXT_STATUS_DIRTY; |
| |
| /* Set XS and SD bits, since PM CSRs are dirty */ |
| mstatus = env->mstatus | MSTATUS_XS; |
| write_mstatus(env, csrno, mstatus); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_spmbase(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->spmbase; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_spmbase(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mstatus; |
| |
| /* if pm.current==0 we can't modify current PM CSRs */ |
| if (check_pm_current_disabled(env, csrno)) { |
| return RISCV_EXCP_NONE; |
| } |
| env->spmbase = val; |
| if ((cpu_address_mode(env) == PRV_S) && (env->mmte & S_PM_ENABLE)) { |
| env->cur_pmbase = val; |
| if (cpu_get_xl(env, PRV_S) == MXL_RV32) { |
| env->cur_pmbase &= UINT32_MAX; |
| } |
| } |
| env->mmte |= EXT_STATUS_DIRTY; |
| |
| /* Set XS and SD bits, since PM CSRs are dirty */ |
| mstatus = env->mstatus | MSTATUS_XS; |
| write_mstatus(env, csrno, mstatus); |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException read_upmbase(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->upmbase; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_upmbase(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| uint64_t mstatus; |
| |
| /* if pm.current==0 we can't modify current PM CSRs */ |
| if (check_pm_current_disabled(env, csrno)) { |
| return RISCV_EXCP_NONE; |
| } |
| env->upmbase = val; |
| if ((cpu_address_mode(env) == PRV_U) && (env->mmte & U_PM_ENABLE)) { |
| env->cur_pmbase = val; |
| if (cpu_get_xl(env, PRV_U) == MXL_RV32) { |
| env->cur_pmbase &= UINT32_MAX; |
| } |
| } |
| env->mmte |= EXT_STATUS_DIRTY; |
| |
| /* Set XS and SD bits, since PM CSRs are dirty */ |
| mstatus = env->mstatus | MSTATUS_XS; |
| write_mstatus(env, csrno, mstatus); |
| return RISCV_EXCP_NONE; |
| } |
| |
| #endif |
| |
| /* Crypto Extension */ |
| target_ulong riscv_new_csr_seed(target_ulong new_value, |
| target_ulong write_mask) |
| { |
| uint16_t random_v; |
| Error *random_e = NULL; |
| int random_r; |
| target_ulong rval; |
| |
| random_r = qemu_guest_getrandom(&random_v, 2, &random_e); |
| if (unlikely(random_r < 0)) { |
| /* |
| * Failed, for unknown reasons in the crypto subsystem. |
| * The best we can do is log the reason and return a |
| * failure indication to the guest. There is no reason |
| * we know to expect the failure to be transitory, so |
| * indicate DEAD to avoid having the guest spin on WAIT. |
| */ |
| qemu_log_mask(LOG_UNIMP, "%s: Crypto failure: %s", |
| __func__, error_get_pretty(random_e)); |
| error_free(random_e); |
| rval = SEED_OPST_DEAD; |
| } else { |
| rval = random_v | SEED_OPST_ES16; |
| } |
| |
| return rval; |
| } |
| |
| static RISCVException rmw_seed(CPURISCVState *env, int csrno, |
| target_ulong *ret_value, |
| target_ulong new_value, |
| target_ulong write_mask) |
| { |
| target_ulong rval; |
| |
| rval = riscv_new_csr_seed(new_value, write_mask); |
| |
| if (ret_value) { |
| *ret_value = rval; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* |
| * riscv_csrrw - read and/or update control and status register |
| * |
| * csrr <-> riscv_csrrw(env, csrno, ret_value, 0, 0); |
| * csrrw <-> riscv_csrrw(env, csrno, ret_value, value, -1); |
| * csrrs <-> riscv_csrrw(env, csrno, ret_value, -1, value); |
| * csrrc <-> riscv_csrrw(env, csrno, ret_value, 0, value); |
| */ |
| |
| static inline RISCVException riscv_csrrw_check(CPURISCVState *env, |
| int csrno, |
| bool write_mask) |
| { |
| /* check privileges and return RISCV_EXCP_ILLEGAL_INST if check fails */ |
| bool read_only = get_field(csrno, 0xC00) == 3; |
| int csr_min_priv = csr_ops[csrno].min_priv_ver; |
| |
| /* ensure the CSR extension is enabled */ |
| if (!riscv_cpu_cfg(env)->ext_zicsr) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| /* ensure CSR is implemented by checking predicate */ |
| if (!csr_ops[csrno].predicate) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| /* privileged spec version check */ |
| if (env->priv_ver < csr_min_priv) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| /* read / write check */ |
| if (write_mask && read_only) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| |
| /* |
| * The predicate() not only does existence check but also does some |
| * access control check which triggers for example virtual instruction |
| * exception in some cases. When writing read-only CSRs in those cases |
| * illegal instruction exception should be triggered instead of virtual |
| * instruction exception. Hence this comes after the read / write check. |
| */ |
| RISCVException ret = csr_ops[csrno].predicate(env, csrno); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| #if !defined(CONFIG_USER_ONLY) |
| int csr_priv, effective_priv = env->priv; |
| |
| if (riscv_has_ext(env, RVH) && env->priv == PRV_S && |
| !env->virt_enabled) { |
| /* |
| * We are in HS mode. Add 1 to the effective privilege level to |
| * allow us to access the Hypervisor CSRs. |
| */ |
| effective_priv++; |
| } |
| |
| csr_priv = get_field(csrno, 0x300); |
| if (!env->debugger && (effective_priv < csr_priv)) { |
| if (csr_priv == (PRV_S + 1) && env->virt_enabled) { |
| return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; |
| } |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| #endif |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException riscv_csrrw_do64(CPURISCVState *env, int csrno, |
| target_ulong *ret_value, |
| target_ulong new_value, |
| target_ulong write_mask) |
| { |
| RISCVException ret; |
| target_ulong old_value = 0; |
| |
| /* execute combined read/write operation if it exists */ |
| if (csr_ops[csrno].op) { |
| return csr_ops[csrno].op(env, csrno, ret_value, new_value, write_mask); |
| } |
| |
| /* |
| * ret_value == NULL means that rd=x0 and we're coming from helper_csrw() |
| * and we can't throw side effects caused by CSR reads. |
| */ |
| if (ret_value) { |
| /* if no accessor exists then return failure */ |
| if (!csr_ops[csrno].read) { |
| return RISCV_EXCP_ILLEGAL_INST; |
| } |
| /* read old value */ |
| ret = csr_ops[csrno].read(env, csrno, &old_value); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| } |
| |
| /* write value if writable and write mask set, otherwise drop writes */ |
| if (write_mask) { |
| new_value = (old_value & ~write_mask) | (new_value & write_mask); |
| if (csr_ops[csrno].write) { |
| ret = csr_ops[csrno].write(env, csrno, new_value); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| } |
| } |
| |
| /* return old value */ |
| if (ret_value) { |
| *ret_value = old_value; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| RISCVException riscv_csrrw(CPURISCVState *env, int csrno, |
| target_ulong *ret_value, |
| target_ulong new_value, target_ulong write_mask) |
| { |
| RISCVException ret = riscv_csrrw_check(env, csrno, write_mask); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| return riscv_csrrw_do64(env, csrno, ret_value, new_value, write_mask); |
| } |
| |
| static RISCVException riscv_csrrw_do128(CPURISCVState *env, int csrno, |
| Int128 *ret_value, |
| Int128 new_value, |
| Int128 write_mask) |
| { |
| RISCVException ret; |
| Int128 old_value; |
| |
| /* read old value */ |
| ret = csr_ops[csrno].read128(env, csrno, &old_value); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| /* write value if writable and write mask set, otherwise drop writes */ |
| if (int128_nz(write_mask)) { |
| new_value = int128_or(int128_and(old_value, int128_not(write_mask)), |
| int128_and(new_value, write_mask)); |
| if (csr_ops[csrno].write128) { |
| ret = csr_ops[csrno].write128(env, csrno, new_value); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| } else if (csr_ops[csrno].write) { |
| /* avoids having to write wrappers for all registers */ |
| ret = csr_ops[csrno].write(env, csrno, int128_getlo(new_value)); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| } |
| } |
| |
| /* return old value */ |
| if (ret_value) { |
| *ret_value = old_value; |
| } |
| |
| return RISCV_EXCP_NONE; |
| } |
| |
| RISCVException riscv_csrrw_i128(CPURISCVState *env, int csrno, |
| Int128 *ret_value, |
| Int128 new_value, Int128 write_mask) |
| { |
| RISCVException ret; |
| |
| ret = riscv_csrrw_check(env, csrno, int128_nz(write_mask)); |
| if (ret != RISCV_EXCP_NONE) { |
| return ret; |
| } |
| |
| if (csr_ops[csrno].read128) { |
| return riscv_csrrw_do128(env, csrno, ret_value, new_value, write_mask); |
| } |
| |
| /* |
| * Fall back to 64-bit version for now, if the 128-bit alternative isn't |
| * at all defined. |
| * Note, some CSRs don't need to extend to MXLEN (64 upper bits non |
| * significant), for those, this fallback is correctly handling the |
| * accesses |
| */ |
| target_ulong old_value; |
| ret = riscv_csrrw_do64(env, csrno, &old_value, |
| int128_getlo(new_value), |
| int128_getlo(write_mask)); |
| if (ret == RISCV_EXCP_NONE && ret_value) { |
| *ret_value = int128_make64(old_value); |
| } |
| return ret; |
| } |
| |
| /* |
| * Debugger support. If not in user mode, set env->debugger before the |
| * riscv_csrrw call and clear it after the call. |
| */ |
| RISCVException riscv_csrrw_debug(CPURISCVState *env, int csrno, |
| target_ulong *ret_value, |
| target_ulong new_value, |
| target_ulong write_mask) |
| { |
| RISCVException ret; |
| #if !defined(CONFIG_USER_ONLY) |
| env->debugger = true; |
| #endif |
| ret = riscv_csrrw(env, csrno, ret_value, new_value, write_mask); |
| #if !defined(CONFIG_USER_ONLY) |
| env->debugger = false; |
| #endif |
| return ret; |
| } |
| |
| static RISCVException read_jvt(CPURISCVState *env, int csrno, |
| target_ulong *val) |
| { |
| *val = env->jvt; |
| return RISCV_EXCP_NONE; |
| } |
| |
| static RISCVException write_jvt(CPURISCVState *env, int csrno, |
| target_ulong val) |
| { |
| env->jvt = val; |
| return RISCV_EXCP_NONE; |
| } |
| |
| /* |
| * Control and Status Register function table |
| * riscv_csr_operations::predicate() must be provided for an implemented CSR |
| */ |
| riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = { |
| /* User Floating-Point CSRs */ |
| [CSR_FFLAGS] = { "fflags", fs, read_fflags, write_fflags }, |
| [CSR_FRM] = { "frm", fs, read_frm, write_frm }, |
| [CSR_FCSR] = { "fcsr", fs, read_fcsr, write_fcsr }, |
| /* Vector CSRs */ |
| [CSR_VSTART] = { "vstart", vs, read_vstart, write_vstart }, |
| [CSR_VXSAT] = { "vxsat", vs, read_vxsat, write_vxsat }, |
| [CSR_VXRM] = { "vxrm", vs, read_vxrm, write_vxrm }, |
| [CSR_VCSR] = { "vcsr", vs, read_vcsr, write_vcsr }, |
| [CSR_VL] = { "vl", vs, read_vl }, |
| [CSR_VTYPE] = { "vtype", vs, read_vtype }, |
| [CSR_VLENB] = { "vlenb", vs, read_vlenb }, |
| /* User Timers and Counters */ |
| [CSR_CYCLE] = { "cycle", ctr, read_hpmcounter }, |
| [CSR_INSTRET] = { "instret", ctr, read_hpmcounter }, |
| [CSR_CYCLEH] = { "cycleh", ctr32, read_hpmcounterh }, |
| [CSR_INSTRETH] = { "instreth", ctr32, read_hpmcounterh }, |
| |
| /* |
| * In privileged mode, the monitor will have to emulate TIME CSRs only if |
| * rdtime callback is not provided by machine/platform emulation. |
| */ |
| [CSR_TIME] = { "time", ctr, read_time }, |
| [CSR_TIMEH] = { "timeh", ctr32, read_timeh }, |
| |
| /* Crypto Extension */ |
| [CSR_SEED] = { "seed", seed, NULL, NULL, rmw_seed }, |
| |
| /* Zcmt Extension */ |
| [CSR_JVT] = {"jvt", zcmt, read_jvt, write_jvt}, |
| |
| #if !defined(CONFIG_USER_ONLY) |
| /* Machine Timers and Counters */ |
| [CSR_MCYCLE] = { "mcycle", any, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MINSTRET] = { "minstret", any, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MCYCLEH] = { "mcycleh", any32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MINSTRETH] = { "minstreth", any32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| |
| /* Machine Information Registers */ |
| [CSR_MVENDORID] = { "mvendorid", any, read_mvendorid }, |
| [CSR_MARCHID] = { "marchid", any, read_marchid }, |
| [CSR_MIMPID] = { "mimpid", any, read_mimpid }, |
| [CSR_MHARTID] = { "mhartid", any, read_mhartid }, |
| |
| [CSR_MCONFIGPTR] = { "mconfigptr", any, read_zero, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| /* Machine Trap Setup */ |
| [CSR_MSTATUS] = { "mstatus", any, read_mstatus, write_mstatus, |
| NULL, read_mstatus_i128 }, |
| [CSR_MISA] = { "misa", any, read_misa, write_misa, |
| NULL, read_misa_i128 }, |
| [CSR_MIDELEG] = { "mideleg", any, NULL, NULL, rmw_mideleg }, |
| [CSR_MEDELEG] = { "medeleg", any, read_medeleg, write_medeleg }, |
| [CSR_MIE] = { "mie", any, NULL, NULL, rmw_mie }, |
| [CSR_MTVEC] = { "mtvec", any, read_mtvec, write_mtvec }, |
| [CSR_MCOUNTEREN] = { "mcounteren", umode, read_mcounteren, |
| write_mcounteren }, |
| |
| [CSR_MSTATUSH] = { "mstatush", any32, read_mstatush, |
| write_mstatush }, |
| [CSR_MEDELEGH] = { "medelegh", any32, read_zero, write_ignore, |
| .min_priv_ver = PRIV_VERSION_1_13_0 }, |
| [CSR_HEDELEGH] = { "hedelegh", hmode32, read_hedelegh, write_hedelegh, |
| .min_priv_ver = PRIV_VERSION_1_13_0 }, |
| |
| /* Machine Trap Handling */ |
| [CSR_MSCRATCH] = { "mscratch", any, read_mscratch, write_mscratch, |
| NULL, read_mscratch_i128, write_mscratch_i128 }, |
| [CSR_MEPC] = { "mepc", any, read_mepc, write_mepc }, |
| [CSR_MCAUSE] = { "mcause", any, read_mcause, write_mcause }, |
| [CSR_MTVAL] = { "mtval", any, read_mtval, write_mtval }, |
| [CSR_MIP] = { "mip", any, NULL, NULL, rmw_mip }, |
| |
| /* Machine-Level Window to Indirectly Accessed Registers (AIA) */ |
| [CSR_MISELECT] = { "miselect", aia_any, NULL, NULL, rmw_xiselect }, |
| [CSR_MIREG] = { "mireg", aia_any, NULL, NULL, rmw_xireg }, |
| |
| /* Machine-Level Interrupts (AIA) */ |
| [CSR_MTOPEI] = { "mtopei", aia_any, NULL, NULL, rmw_xtopei }, |
| [CSR_MTOPI] = { "mtopi", aia_any, read_mtopi }, |
| |
| /* Virtual Interrupts for Supervisor Level (AIA) */ |
| [CSR_MVIEN] = { "mvien", aia_any, NULL, NULL, rmw_mvien }, |
| [CSR_MVIP] = { "mvip", aia_any, NULL, NULL, rmw_mvip }, |
| |
| /* Machine-Level High-Half CSRs (AIA) */ |
| [CSR_MIDELEGH] = { "midelegh", aia_any32, NULL, NULL, rmw_midelegh }, |
| [CSR_MIEH] = { "mieh", aia_any32, NULL, NULL, rmw_mieh }, |
| [CSR_MVIENH] = { "mvienh", aia_any32, NULL, NULL, rmw_mvienh }, |
| [CSR_MVIPH] = { "mviph", aia_any32, NULL, NULL, rmw_mviph }, |
| [CSR_MIPH] = { "miph", aia_any32, NULL, NULL, rmw_miph }, |
| |
| /* Execution environment configuration */ |
| [CSR_MENVCFG] = { "menvcfg", umode, read_menvcfg, write_menvcfg, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MENVCFGH] = { "menvcfgh", umode32, read_menvcfgh, write_menvcfgh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_SENVCFG] = { "senvcfg", smode, read_senvcfg, write_senvcfg, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HENVCFG] = { "henvcfg", hmode, read_henvcfg, write_henvcfg, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HENVCFGH] = { "henvcfgh", hmode32, read_henvcfgh, write_henvcfgh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| /* Smstateen extension CSRs */ |
| [CSR_MSTATEEN0] = { "mstateen0", mstateen, read_mstateen, write_mstateen0, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MSTATEEN0H] = { "mstateen0h", mstateen, read_mstateenh, |
| write_mstateen0h, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MSTATEEN1] = { "mstateen1", mstateen, read_mstateen, |
| write_mstateen_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MSTATEEN1H] = { "mstateen1h", mstateen, read_mstateenh, |
| write_mstateenh_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MSTATEEN2] = { "mstateen2", mstateen, read_mstateen, |
| write_mstateen_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MSTATEEN2H] = { "mstateen2h", mstateen, read_mstateenh, |
| write_mstateenh_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MSTATEEN3] = { "mstateen3", mstateen, read_mstateen, |
| write_mstateen_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MSTATEEN3H] = { "mstateen3h", mstateen, read_mstateenh, |
| write_mstateenh_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HSTATEEN0] = { "hstateen0", hstateen, read_hstateen, write_hstateen0, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HSTATEEN0H] = { "hstateen0h", hstateenh, read_hstateenh, |
| write_hstateen0h, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HSTATEEN1] = { "hstateen1", hstateen, read_hstateen, |
| write_hstateen_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HSTATEEN1H] = { "hstateen1h", hstateenh, read_hstateenh, |
| write_hstateenh_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HSTATEEN2] = { "hstateen2", hstateen, read_hstateen, |
| write_hstateen_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HSTATEEN2H] = { "hstateen2h", hstateenh, read_hstateenh, |
| write_hstateenh_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HSTATEEN3] = { "hstateen3", hstateen, read_hstateen, |
| write_hstateen_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HSTATEEN3H] = { "hstateen3h", hstateenh, read_hstateenh, |
| write_hstateenh_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_SSTATEEN0] = { "sstateen0", sstateen, read_sstateen, write_sstateen0, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_SSTATEEN1] = { "sstateen1", sstateen, read_sstateen, |
| write_sstateen_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_SSTATEEN2] = { "sstateen2", sstateen, read_sstateen, |
| write_sstateen_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_SSTATEEN3] = { "sstateen3", sstateen, read_sstateen, |
| write_sstateen_1_3, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| /* Supervisor Trap Setup */ |
| [CSR_SSTATUS] = { "sstatus", smode, read_sstatus, write_sstatus, |
| NULL, read_sstatus_i128 }, |
| [CSR_SIE] = { "sie", smode, NULL, NULL, rmw_sie }, |
| [CSR_STVEC] = { "stvec", smode, read_stvec, write_stvec }, |
| [CSR_SCOUNTEREN] = { "scounteren", smode, read_scounteren, |
| write_scounteren }, |
| |
| /* Supervisor Trap Handling */ |
| [CSR_SSCRATCH] = { "sscratch", smode, read_sscratch, write_sscratch, |
| NULL, read_sscratch_i128, write_sscratch_i128 }, |
| [CSR_SEPC] = { "sepc", smode, read_sepc, write_sepc }, |
| [CSR_SCAUSE] = { "scause", smode, read_scause, write_scause }, |
| [CSR_STVAL] = { "stval", smode, read_stval, write_stval }, |
| [CSR_SIP] = { "sip", smode, NULL, NULL, rmw_sip }, |
| [CSR_STIMECMP] = { "stimecmp", sstc, read_stimecmp, write_stimecmp, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_STIMECMPH] = { "stimecmph", sstc_32, read_stimecmph, write_stimecmph, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSTIMECMP] = { "vstimecmp", sstc, read_vstimecmp, |
| write_vstimecmp, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSTIMECMPH] = { "vstimecmph", sstc_32, read_vstimecmph, |
| write_vstimecmph, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| /* Supervisor Protection and Translation */ |
| [CSR_SATP] = { "satp", satp, read_satp, write_satp }, |
| |
| /* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */ |
| [CSR_SISELECT] = { "siselect", aia_smode, NULL, NULL, rmw_xiselect }, |
| [CSR_SIREG] = { "sireg", aia_smode, NULL, NULL, rmw_xireg }, |
| |
| /* Supervisor-Level Interrupts (AIA) */ |
| [CSR_STOPEI] = { "stopei", aia_smode, NULL, NULL, rmw_xtopei }, |
| [CSR_STOPI] = { "stopi", aia_smode, read_stopi }, |
| |
| /* Supervisor-Level High-Half CSRs (AIA) */ |
| [CSR_SIEH] = { "sieh", aia_smode32, NULL, NULL, rmw_sieh }, |
| [CSR_SIPH] = { "siph", aia_smode32, NULL, NULL, rmw_siph }, |
| |
| [CSR_HSTATUS] = { "hstatus", hmode, read_hstatus, write_hstatus, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HEDELEG] = { "hedeleg", hmode, read_hedeleg, write_hedeleg, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HIDELEG] = { "hideleg", hmode, NULL, NULL, rmw_hideleg, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HVIP] = { "hvip", hmode, NULL, NULL, rmw_hvip, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HIP] = { "hip", hmode, NULL, NULL, rmw_hip, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HIE] = { "hie", hmode, NULL, NULL, rmw_hie, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HCOUNTEREN] = { "hcounteren", hmode, read_hcounteren, |
| write_hcounteren, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HGEIE] = { "hgeie", hmode, read_hgeie, write_hgeie, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HTVAL] = { "htval", hmode, read_htval, write_htval, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HTINST] = { "htinst", hmode, read_htinst, write_htinst, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HGEIP] = { "hgeip", hmode, read_hgeip, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HGATP] = { "hgatp", hgatp, read_hgatp, write_hgatp, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HTIMEDELTA] = { "htimedelta", hmode, read_htimedelta, |
| write_htimedelta, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_HTIMEDELTAH] = { "htimedeltah", hmode32, read_htimedeltah, |
| write_htimedeltah, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| [CSR_VSSTATUS] = { "vsstatus", hmode, read_vsstatus, |
| write_vsstatus, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSIP] = { "vsip", hmode, NULL, NULL, rmw_vsip, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSIE] = { "vsie", hmode, NULL, NULL, rmw_vsie , |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSTVEC] = { "vstvec", hmode, read_vstvec, write_vstvec, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSSCRATCH] = { "vsscratch", hmode, read_vsscratch, |
| write_vsscratch, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSEPC] = { "vsepc", hmode, read_vsepc, write_vsepc, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSCAUSE] = { "vscause", hmode, read_vscause, write_vscause, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSTVAL] = { "vstval", hmode, read_vstval, write_vstval, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_VSATP] = { "vsatp", hmode, read_vsatp, write_vsatp, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| [CSR_MTVAL2] = { "mtval2", hmode, read_mtval2, write_mtval2, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MTINST] = { "mtinst", hmode, read_mtinst, write_mtinst, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| /* Virtual Interrupts and Interrupt Priorities (H-extension with AIA) */ |
| [CSR_HVIEN] = { "hvien", aia_hmode, NULL, NULL, rmw_hvien }, |
| [CSR_HVICTL] = { "hvictl", aia_hmode, read_hvictl, |
| write_hvictl }, |
| [CSR_HVIPRIO1] = { "hviprio1", aia_hmode, read_hviprio1, |
| write_hviprio1 }, |
| [CSR_HVIPRIO2] = { "hviprio2", aia_hmode, read_hviprio2, |
| write_hviprio2 }, |
| /* |
| * VS-Level Window to Indirectly Accessed Registers (H-extension with AIA) |
| */ |
| [CSR_VSISELECT] = { "vsiselect", aia_hmode, NULL, NULL, |
| rmw_xiselect }, |
| [CSR_VSIREG] = { "vsireg", aia_hmode, NULL, NULL, rmw_xireg }, |
| |
| /* VS-Level Interrupts (H-extension with AIA) */ |
| [CSR_VSTOPEI] = { "vstopei", aia_hmode, NULL, NULL, rmw_xtopei }, |
| [CSR_VSTOPI] = { "vstopi", aia_hmode, read_vstopi }, |
| |
| /* Hypervisor and VS-Level High-Half CSRs (H-extension with AIA) */ |
| [CSR_HIDELEGH] = { "hidelegh", aia_hmode32, NULL, NULL, |
| rmw_hidelegh }, |
| [CSR_HVIENH] = { "hvienh", aia_hmode32, NULL, NULL, rmw_hvienh }, |
| [CSR_HVIPH] = { "hviph", aia_hmode32, NULL, NULL, rmw_hviph }, |
| [CSR_HVIPRIO1H] = { "hviprio1h", aia_hmode32, read_hviprio1h, |
| write_hviprio1h }, |
| [CSR_HVIPRIO2H] = { "hviprio2h", aia_hmode32, read_hviprio2h, |
| write_hviprio2h }, |
| [CSR_VSIEH] = { "vsieh", aia_hmode32, NULL, NULL, rmw_vsieh }, |
| [CSR_VSIPH] = { "vsiph", aia_hmode32, NULL, NULL, rmw_vsiph }, |
| |
| /* Physical Memory Protection */ |
| [CSR_MSECCFG] = { "mseccfg", have_mseccfg, read_mseccfg, write_mseccfg, |
| .min_priv_ver = PRIV_VERSION_1_11_0 }, |
| [CSR_PMPCFG0] = { "pmpcfg0", pmp, read_pmpcfg, write_pmpcfg }, |
| [CSR_PMPCFG1] = { "pmpcfg1", pmp, read_pmpcfg, write_pmpcfg }, |
| [CSR_PMPCFG2] = { "pmpcfg2", pmp, read_pmpcfg, write_pmpcfg }, |
| [CSR_PMPCFG3] = { "pmpcfg3", pmp, read_pmpcfg, write_pmpcfg }, |
| [CSR_PMPADDR0] = { "pmpaddr0", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR1] = { "pmpaddr1", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR2] = { "pmpaddr2", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR3] = { "pmpaddr3", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR4] = { "pmpaddr4", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR5] = { "pmpaddr5", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR6] = { "pmpaddr6", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR7] = { "pmpaddr7", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR8] = { "pmpaddr8", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR9] = { "pmpaddr9", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR10] = { "pmpaddr10", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR11] = { "pmpaddr11", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR12] = { "pmpaddr12", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR13] = { "pmpaddr13", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR14] = { "pmpaddr14", pmp, read_pmpaddr, write_pmpaddr }, |
| [CSR_PMPADDR15] = { "pmpaddr15", pmp, read_pmpaddr, write_pmpaddr }, |
| |
| /* Debug CSRs */ |
| [CSR_TSELECT] = { "tselect", debug, read_tselect, write_tselect }, |
| [CSR_TDATA1] = { "tdata1", debug, read_tdata, write_tdata }, |
| [CSR_TDATA2] = { "tdata2", debug, read_tdata, write_tdata }, |
| [CSR_TDATA3] = { "tdata3", debug, read_tdata, write_tdata }, |
| [CSR_TINFO] = { "tinfo", debug, read_tinfo, write_ignore }, |
| [CSR_MCONTEXT] = { "mcontext", debug, read_mcontext, write_mcontext }, |
| |
| /* User Pointer Masking */ |
| [CSR_UMTE] = { "umte", pointer_masking, read_umte, write_umte }, |
| [CSR_UPMMASK] = { "upmmask", pointer_masking, read_upmmask, |
| write_upmmask }, |
| [CSR_UPMBASE] = { "upmbase", pointer_masking, read_upmbase, |
| write_upmbase }, |
| /* Machine Pointer Masking */ |
| [CSR_MMTE] = { "mmte", pointer_masking, read_mmte, write_mmte }, |
| [CSR_MPMMASK] = { "mpmmask", pointer_masking, read_mpmmask, |
| write_mpmmask }, |
| [CSR_MPMBASE] = { "mpmbase", pointer_masking, read_mpmbase, |
| write_mpmbase }, |
| /* Supervisor Pointer Masking */ |
| [CSR_SMTE] = { "smte", pointer_masking, read_smte, write_smte }, |
| [CSR_SPMMASK] = { "spmmask", pointer_masking, read_spmmask, |
| write_spmmask }, |
| [CSR_SPMBASE] = { "spmbase", pointer_masking, read_spmbase, |
| write_spmbase }, |
| |
| /* Performance Counters */ |
| [CSR_HPMCOUNTER3] = { "hpmcounter3", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER4] = { "hpmcounter4", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER5] = { "hpmcounter5", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER6] = { "hpmcounter6", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER7] = { "hpmcounter7", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER8] = { "hpmcounter8", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER9] = { "hpmcounter9", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER10] = { "hpmcounter10", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER11] = { "hpmcounter11", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER12] = { "hpmcounter12", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER13] = { "hpmcounter13", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER14] = { "hpmcounter14", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER15] = { "hpmcounter15", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER16] = { "hpmcounter16", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER17] = { "hpmcounter17", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER18] = { "hpmcounter18", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER19] = { "hpmcounter19", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER20] = { "hpmcounter20", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER21] = { "hpmcounter21", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER22] = { "hpmcounter22", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER23] = { "hpmcounter23", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER24] = { "hpmcounter24", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER25] = { "hpmcounter25", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER26] = { "hpmcounter26", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER27] = { "hpmcounter27", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER28] = { "hpmcounter28", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER29] = { "hpmcounter29", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER30] = { "hpmcounter30", ctr, read_hpmcounter }, |
| [CSR_HPMCOUNTER31] = { "hpmcounter31", ctr, read_hpmcounter }, |
| |
| [CSR_MHPMCOUNTER3] = { "mhpmcounter3", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER4] = { "mhpmcounter4", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER5] = { "mhpmcounter5", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER6] = { "mhpmcounter6", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER7] = { "mhpmcounter7", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER8] = { "mhpmcounter8", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER9] = { "mhpmcounter9", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER10] = { "mhpmcounter10", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER11] = { "mhpmcounter11", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER12] = { "mhpmcounter12", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER13] = { "mhpmcounter13", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER14] = { "mhpmcounter14", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER15] = { "mhpmcounter15", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER16] = { "mhpmcounter16", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER17] = { "mhpmcounter17", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER18] = { "mhpmcounter18", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER19] = { "mhpmcounter19", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER20] = { "mhpmcounter20", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER21] = { "mhpmcounter21", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER22] = { "mhpmcounter22", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER23] = { "mhpmcounter23", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER24] = { "mhpmcounter24", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER25] = { "mhpmcounter25", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER26] = { "mhpmcounter26", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER27] = { "mhpmcounter27", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER28] = { "mhpmcounter28", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER29] = { "mhpmcounter29", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER30] = { "mhpmcounter30", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| [CSR_MHPMCOUNTER31] = { "mhpmcounter31", mctr, read_hpmcounter, |
| write_mhpmcounter }, |
| |
| [CSR_MCOUNTINHIBIT] = { "mcountinhibit", any, read_mcountinhibit, |
| write_mcountinhibit, |
| .min_priv_ver = PRIV_VERSION_1_11_0 }, |
| |
| [CSR_MCYCLECFG] = { "mcyclecfg", smcntrpmf, read_mcyclecfg, |
| write_mcyclecfg, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MINSTRETCFG] = { "minstretcfg", smcntrpmf, read_minstretcfg, |
| write_minstretcfg, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| [CSR_MHPMEVENT3] = { "mhpmevent3", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT4] = { "mhpmevent4", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT5] = { "mhpmevent5", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT6] = { "mhpmevent6", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT7] = { "mhpmevent7", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT8] = { "mhpmevent8", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT9] = { "mhpmevent9", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT10] = { "mhpmevent10", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT11] = { "mhpmevent11", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT12] = { "mhpmevent12", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT13] = { "mhpmevent13", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT14] = { "mhpmevent14", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT15] = { "mhpmevent15", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT16] = { "mhpmevent16", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT17] = { "mhpmevent17", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT18] = { "mhpmevent18", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT19] = { "mhpmevent19", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT20] = { "mhpmevent20", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT21] = { "mhpmevent21", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT22] = { "mhpmevent22", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT23] = { "mhpmevent23", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT24] = { "mhpmevent24", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT25] = { "mhpmevent25", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT26] = { "mhpmevent26", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT27] = { "mhpmevent27", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT28] = { "mhpmevent28", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT29] = { "mhpmevent29", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT30] = { "mhpmevent30", any, read_mhpmevent, |
| write_mhpmevent }, |
| [CSR_MHPMEVENT31] = { "mhpmevent31", any, read_mhpmevent, |
| write_mhpmevent }, |
| |
| [CSR_MCYCLECFGH] = { "mcyclecfgh", smcntrpmf_32, read_mcyclecfgh, |
| write_mcyclecfgh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MINSTRETCFGH] = { "minstretcfgh", smcntrpmf_32, read_minstretcfgh, |
| write_minstretcfgh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| [CSR_MHPMEVENT3H] = { "mhpmevent3h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT4H] = { "mhpmevent4h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT5H] = { "mhpmevent5h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT6H] = { "mhpmevent6h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT7H] = { "mhpmevent7h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT8H] = { "mhpmevent8h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT9H] = { "mhpmevent9h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT10H] = { "mhpmevent10h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT11H] = { "mhpmevent11h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT12H] = { "mhpmevent12h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT13H] = { "mhpmevent13h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT14H] = { "mhpmevent14h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT15H] = { "mhpmevent15h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT16H] = { "mhpmevent16h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT17H] = { "mhpmevent17h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT18H] = { "mhpmevent18h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT19H] = { "mhpmevent19h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT20H] = { "mhpmevent20h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT21H] = { "mhpmevent21h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT22H] = { "mhpmevent22h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT23H] = { "mhpmevent23h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT24H] = { "mhpmevent24h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT25H] = { "mhpmevent25h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT26H] = { "mhpmevent26h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT27H] = { "mhpmevent27h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT28H] = { "mhpmevent28h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT29H] = { "mhpmevent29h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT30H] = { "mhpmevent30h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| [CSR_MHPMEVENT31H] = { "mhpmevent31h", sscofpmf_32, read_mhpmeventh, |
| write_mhpmeventh, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| [CSR_HPMCOUNTER3H] = { "hpmcounter3h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER4H] = { "hpmcounter4h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER5H] = { "hpmcounter5h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER6H] = { "hpmcounter6h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER7H] = { "hpmcounter7h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER8H] = { "hpmcounter8h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER9H] = { "hpmcounter9h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER10H] = { "hpmcounter10h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER11H] = { "hpmcounter11h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER12H] = { "hpmcounter12h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER13H] = { "hpmcounter13h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER14H] = { "hpmcounter14h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER15H] = { "hpmcounter15h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER16H] = { "hpmcounter16h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER17H] = { "hpmcounter17h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER18H] = { "hpmcounter18h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER19H] = { "hpmcounter19h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER20H] = { "hpmcounter20h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER21H] = { "hpmcounter21h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER22H] = { "hpmcounter22h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER23H] = { "hpmcounter23h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER24H] = { "hpmcounter24h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER25H] = { "hpmcounter25h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER26H] = { "hpmcounter26h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER27H] = { "hpmcounter27h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER28H] = { "hpmcounter28h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER29H] = { "hpmcounter29h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER30H] = { "hpmcounter30h", ctr32, read_hpmcounterh }, |
| [CSR_HPMCOUNTER31H] = { "hpmcounter31h", ctr32, read_hpmcounterh }, |
| |
| [CSR_MHPMCOUNTER3H] = { "mhpmcounter3h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER4H] = { "mhpmcounter4h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER5H] = { "mhpmcounter5h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER6H] = { "mhpmcounter6h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER7H] = { "mhpmcounter7h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER8H] = { "mhpmcounter8h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER9H] = { "mhpmcounter9h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER10H] = { "mhpmcounter10h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER11H] = { "mhpmcounter11h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER12H] = { "mhpmcounter12h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER13H] = { "mhpmcounter13h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER14H] = { "mhpmcounter14h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER15H] = { "mhpmcounter15h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER16H] = { "mhpmcounter16h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER17H] = { "mhpmcounter17h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER18H] = { "mhpmcounter18h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER19H] = { "mhpmcounter19h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER20H] = { "mhpmcounter20h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER21H] = { "mhpmcounter21h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER22H] = { "mhpmcounter22h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER23H] = { "mhpmcounter23h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER24H] = { "mhpmcounter24h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER25H] = { "mhpmcounter25h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER26H] = { "mhpmcounter26h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER27H] = { "mhpmcounter27h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER28H] = { "mhpmcounter28h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER29H] = { "mhpmcounter29h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER30H] = { "mhpmcounter30h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_MHPMCOUNTER31H] = { "mhpmcounter31h", mctr32, read_hpmcounterh, |
| write_mhpmcounterh }, |
| [CSR_SCOUNTOVF] = { "scountovf", sscofpmf, read_scountovf, |
| .min_priv_ver = PRIV_VERSION_1_12_0 }, |
| |
| #endif /* !CONFIG_USER_ONLY */ |
| }; |
