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1293 lines
41 KiB
C
1293 lines
41 KiB
C
/*
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* QEMU RISC-V CPU
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*
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* Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
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* Copyright (c) 2017-2018 SiFive, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "qemu/qemu-print.h"
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#include "qemu/ctype.h"
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#include "qemu/log.h"
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#include "cpu.h"
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#include "pmu.h"
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#include "internals.h"
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#include "time_helper.h"
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#include "exec/exec-all.h"
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#include "qapi/error.h"
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#include "qemu/error-report.h"
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#include "hw/qdev-properties.h"
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#include "migration/vmstate.h"
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#include "fpu/softfloat-helpers.h"
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#include "sysemu/kvm.h"
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#include "kvm_riscv.h"
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/* RISC-V CPU definitions */
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#define RISCV_CPU_MARCHID ((QEMU_VERSION_MAJOR << 16) | \
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(QEMU_VERSION_MINOR << 8) | \
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(QEMU_VERSION_MICRO))
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#define RISCV_CPU_MIMPID RISCV_CPU_MARCHID
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static const char riscv_single_letter_exts[] = "IEMAFDQCPVH";
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struct isa_ext_data {
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const char *name;
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bool multi_letter;
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int min_version;
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int ext_enable_offset;
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};
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#define ISA_EXT_DATA_ENTRY(_name, _m_letter, _min_ver, _prop) \
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{#_name, _m_letter, _min_ver, offsetof(struct RISCVCPUConfig, _prop)}
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/**
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* Here are the ordering rules of extension naming defined by RISC-V
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* specification :
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* 1. All extensions should be separated from other multi-letter extensions
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* by an underscore.
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* 2. The first letter following the 'Z' conventionally indicates the most
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* closely related alphabetical extension category, IMAFDQLCBKJTPVH.
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* If multiple 'Z' extensions are named, they should be ordered first
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* by category, then alphabetically within a category.
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* 3. Standard supervisor-level extensions (starts with 'S') should be
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* listed after standard unprivileged extensions. If multiple
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* supervisor-level extensions are listed, they should be ordered
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* alphabetically.
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* 4. Non-standard extensions (starts with 'X') must be listed after all
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* standard extensions. They must be separated from other multi-letter
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* extensions by an underscore.
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*/
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static const struct isa_ext_data isa_edata_arr[] = {
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ISA_EXT_DATA_ENTRY(h, false, PRIV_VERSION_1_12_0, ext_h),
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ISA_EXT_DATA_ENTRY(v, false, PRIV_VERSION_1_12_0, ext_v),
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ISA_EXT_DATA_ENTRY(zicsr, true, PRIV_VERSION_1_10_0, ext_icsr),
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ISA_EXT_DATA_ENTRY(zifencei, true, PRIV_VERSION_1_10_0, ext_ifencei),
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ISA_EXT_DATA_ENTRY(zihintpause, true, PRIV_VERSION_1_10_0, ext_zihintpause),
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ISA_EXT_DATA_ENTRY(zfh, true, PRIV_VERSION_1_12_0, ext_zfh),
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ISA_EXT_DATA_ENTRY(zfhmin, true, PRIV_VERSION_1_12_0, ext_zfhmin),
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ISA_EXT_DATA_ENTRY(zfinx, true, PRIV_VERSION_1_12_0, ext_zfinx),
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ISA_EXT_DATA_ENTRY(zdinx, true, PRIV_VERSION_1_12_0, ext_zdinx),
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ISA_EXT_DATA_ENTRY(zba, true, PRIV_VERSION_1_12_0, ext_zba),
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ISA_EXT_DATA_ENTRY(zbb, true, PRIV_VERSION_1_12_0, ext_zbb),
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ISA_EXT_DATA_ENTRY(zbc, true, PRIV_VERSION_1_12_0, ext_zbc),
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ISA_EXT_DATA_ENTRY(zbkb, true, PRIV_VERSION_1_12_0, ext_zbkb),
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ISA_EXT_DATA_ENTRY(zbkc, true, PRIV_VERSION_1_12_0, ext_zbkc),
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ISA_EXT_DATA_ENTRY(zbkx, true, PRIV_VERSION_1_12_0, ext_zbkx),
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ISA_EXT_DATA_ENTRY(zbs, true, PRIV_VERSION_1_12_0, ext_zbs),
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ISA_EXT_DATA_ENTRY(zk, true, PRIV_VERSION_1_12_0, ext_zk),
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ISA_EXT_DATA_ENTRY(zkn, true, PRIV_VERSION_1_12_0, ext_zkn),
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ISA_EXT_DATA_ENTRY(zknd, true, PRIV_VERSION_1_12_0, ext_zknd),
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ISA_EXT_DATA_ENTRY(zkne, true, PRIV_VERSION_1_12_0, ext_zkne),
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ISA_EXT_DATA_ENTRY(zknh, true, PRIV_VERSION_1_12_0, ext_zknh),
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ISA_EXT_DATA_ENTRY(zkr, true, PRIV_VERSION_1_12_0, ext_zkr),
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ISA_EXT_DATA_ENTRY(zks, true, PRIV_VERSION_1_12_0, ext_zks),
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ISA_EXT_DATA_ENTRY(zksed, true, PRIV_VERSION_1_12_0, ext_zksed),
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ISA_EXT_DATA_ENTRY(zksh, true, PRIV_VERSION_1_12_0, ext_zksh),
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ISA_EXT_DATA_ENTRY(zkt, true, PRIV_VERSION_1_12_0, ext_zkt),
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ISA_EXT_DATA_ENTRY(zve32f, true, PRIV_VERSION_1_12_0, ext_zve32f),
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ISA_EXT_DATA_ENTRY(zve64f, true, PRIV_VERSION_1_12_0, ext_zve64f),
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ISA_EXT_DATA_ENTRY(zhinx, true, PRIV_VERSION_1_12_0, ext_zhinx),
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ISA_EXT_DATA_ENTRY(zhinxmin, true, PRIV_VERSION_1_12_0, ext_zhinxmin),
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ISA_EXT_DATA_ENTRY(smaia, true, PRIV_VERSION_1_12_0, ext_smaia),
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ISA_EXT_DATA_ENTRY(ssaia, true, PRIV_VERSION_1_12_0, ext_ssaia),
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ISA_EXT_DATA_ENTRY(sscofpmf, true, PRIV_VERSION_1_12_0, ext_sscofpmf),
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ISA_EXT_DATA_ENTRY(sstc, true, PRIV_VERSION_1_12_0, ext_sstc),
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ISA_EXT_DATA_ENTRY(svinval, true, PRIV_VERSION_1_12_0, ext_svinval),
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ISA_EXT_DATA_ENTRY(svnapot, true, PRIV_VERSION_1_12_0, ext_svnapot),
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ISA_EXT_DATA_ENTRY(svpbmt, true, PRIV_VERSION_1_12_0, ext_svpbmt),
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ISA_EXT_DATA_ENTRY(xventanacondops, true, PRIV_VERSION_1_12_0, ext_XVentanaCondOps),
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};
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static bool isa_ext_is_enabled(RISCVCPU *cpu,
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const struct isa_ext_data *edata)
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{
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bool *ext_enabled = (void *)&cpu->cfg + edata->ext_enable_offset;
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return *ext_enabled;
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}
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static void isa_ext_update_enabled(RISCVCPU *cpu,
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const struct isa_ext_data *edata, bool en)
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{
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bool *ext_enabled = (void *)&cpu->cfg + edata->ext_enable_offset;
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*ext_enabled = en;
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}
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const char * const riscv_int_regnames[] = {
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"x0/zero", "x1/ra", "x2/sp", "x3/gp", "x4/tp", "x5/t0", "x6/t1",
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"x7/t2", "x8/s0", "x9/s1", "x10/a0", "x11/a1", "x12/a2", "x13/a3",
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"x14/a4", "x15/a5", "x16/a6", "x17/a7", "x18/s2", "x19/s3", "x20/s4",
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"x21/s5", "x22/s6", "x23/s7", "x24/s8", "x25/s9", "x26/s10", "x27/s11",
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"x28/t3", "x29/t4", "x30/t5", "x31/t6"
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};
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const char * const riscv_int_regnamesh[] = {
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"x0h/zeroh", "x1h/rah", "x2h/sph", "x3h/gph", "x4h/tph", "x5h/t0h",
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"x6h/t1h", "x7h/t2h", "x8h/s0h", "x9h/s1h", "x10h/a0h", "x11h/a1h",
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"x12h/a2h", "x13h/a3h", "x14h/a4h", "x15h/a5h", "x16h/a6h", "x17h/a7h",
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"x18h/s2h", "x19h/s3h", "x20h/s4h", "x21h/s5h", "x22h/s6h", "x23h/s7h",
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"x24h/s8h", "x25h/s9h", "x26h/s10h", "x27h/s11h", "x28h/t3h", "x29h/t4h",
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"x30h/t5h", "x31h/t6h"
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};
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const char * const riscv_fpr_regnames[] = {
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"f0/ft0", "f1/ft1", "f2/ft2", "f3/ft3", "f4/ft4", "f5/ft5",
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"f6/ft6", "f7/ft7", "f8/fs0", "f9/fs1", "f10/fa0", "f11/fa1",
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"f12/fa2", "f13/fa3", "f14/fa4", "f15/fa5", "f16/fa6", "f17/fa7",
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"f18/fs2", "f19/fs3", "f20/fs4", "f21/fs5", "f22/fs6", "f23/fs7",
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"f24/fs8", "f25/fs9", "f26/fs10", "f27/fs11", "f28/ft8", "f29/ft9",
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"f30/ft10", "f31/ft11"
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};
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static const char * const riscv_excp_names[] = {
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"misaligned_fetch",
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"fault_fetch",
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"illegal_instruction",
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"breakpoint",
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"misaligned_load",
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"fault_load",
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"misaligned_store",
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"fault_store",
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"user_ecall",
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"supervisor_ecall",
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"hypervisor_ecall",
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"machine_ecall",
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"exec_page_fault",
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"load_page_fault",
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"reserved",
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"store_page_fault",
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"reserved",
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"reserved",
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"reserved",
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"reserved",
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"guest_exec_page_fault",
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"guest_load_page_fault",
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"reserved",
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"guest_store_page_fault",
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};
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static const char * const riscv_intr_names[] = {
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"u_software",
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"s_software",
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"vs_software",
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"m_software",
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"u_timer",
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"s_timer",
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"vs_timer",
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"m_timer",
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"u_external",
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"s_external",
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"vs_external",
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"m_external",
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"reserved",
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"reserved",
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"reserved",
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"reserved"
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};
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static void register_cpu_props(DeviceState *dev);
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const char *riscv_cpu_get_trap_name(target_ulong cause, bool async)
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{
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if (async) {
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return (cause < ARRAY_SIZE(riscv_intr_names)) ?
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riscv_intr_names[cause] : "(unknown)";
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} else {
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return (cause < ARRAY_SIZE(riscv_excp_names)) ?
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riscv_excp_names[cause] : "(unknown)";
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}
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}
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static void set_misa(CPURISCVState *env, RISCVMXL mxl, uint32_t ext)
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{
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env->misa_mxl_max = env->misa_mxl = mxl;
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env->misa_ext_mask = env->misa_ext = ext;
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}
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static void set_priv_version(CPURISCVState *env, int priv_ver)
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{
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env->priv_ver = priv_ver;
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}
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static void set_vext_version(CPURISCVState *env, int vext_ver)
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{
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env->vext_ver = vext_ver;
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}
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static void riscv_any_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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#if defined(TARGET_RISCV32)
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set_misa(env, MXL_RV32, RVI | RVM | RVA | RVF | RVD | RVC | RVU);
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#elif defined(TARGET_RISCV64)
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set_misa(env, MXL_RV64, RVI | RVM | RVA | RVF | RVD | RVC | RVU);
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#endif
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set_priv_version(env, PRIV_VERSION_1_12_0);
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register_cpu_props(DEVICE(obj));
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}
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#if defined(TARGET_RISCV64)
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static void rv64_base_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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/* We set this in the realise function */
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set_misa(env, MXL_RV64, 0);
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register_cpu_props(DEVICE(obj));
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/* Set latest version of privileged specification */
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set_priv_version(env, PRIV_VERSION_1_12_0);
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}
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static void rv64_sifive_u_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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set_misa(env, MXL_RV64, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
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set_priv_version(env, PRIV_VERSION_1_10_0);
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}
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static void rv64_sifive_e_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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RISCVCPU *cpu = RISCV_CPU(obj);
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set_misa(env, MXL_RV64, RVI | RVM | RVA | RVC | RVU);
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set_priv_version(env, PRIV_VERSION_1_10_0);
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cpu->cfg.mmu = false;
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}
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static void rv128_base_cpu_init(Object *obj)
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{
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if (qemu_tcg_mttcg_enabled()) {
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/* Missing 128-bit aligned atomics */
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error_report("128-bit RISC-V currently does not work with Multi "
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"Threaded TCG. Please use: -accel tcg,thread=single");
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exit(EXIT_FAILURE);
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}
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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/* We set this in the realise function */
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set_misa(env, MXL_RV128, 0);
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register_cpu_props(DEVICE(obj));
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/* Set latest version of privileged specification */
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set_priv_version(env, PRIV_VERSION_1_12_0);
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}
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#else
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static void rv32_base_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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/* We set this in the realise function */
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set_misa(env, MXL_RV32, 0);
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register_cpu_props(DEVICE(obj));
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/* Set latest version of privileged specification */
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set_priv_version(env, PRIV_VERSION_1_12_0);
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}
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static void rv32_sifive_u_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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set_misa(env, MXL_RV32, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
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set_priv_version(env, PRIV_VERSION_1_10_0);
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}
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static void rv32_sifive_e_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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RISCVCPU *cpu = RISCV_CPU(obj);
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set_misa(env, MXL_RV32, RVI | RVM | RVA | RVC | RVU);
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set_priv_version(env, PRIV_VERSION_1_10_0);
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cpu->cfg.mmu = false;
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}
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static void rv32_ibex_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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RISCVCPU *cpu = RISCV_CPU(obj);
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set_misa(env, MXL_RV32, RVI | RVM | RVC | RVU);
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set_priv_version(env, PRIV_VERSION_1_11_0);
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cpu->cfg.mmu = false;
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cpu->cfg.epmp = true;
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}
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static void rv32_imafcu_nommu_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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RISCVCPU *cpu = RISCV_CPU(obj);
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set_misa(env, MXL_RV32, RVI | RVM | RVA | RVF | RVC | RVU);
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set_priv_version(env, PRIV_VERSION_1_10_0);
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cpu->cfg.mmu = false;
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}
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#endif
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|
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#if defined(CONFIG_KVM)
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static void riscv_host_cpu_init(Object *obj)
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{
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CPURISCVState *env = &RISCV_CPU(obj)->env;
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#if defined(TARGET_RISCV32)
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set_misa(env, MXL_RV32, 0);
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#elif defined(TARGET_RISCV64)
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set_misa(env, MXL_RV64, 0);
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#endif
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register_cpu_props(DEVICE(obj));
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}
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#endif
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static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model)
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{
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ObjectClass *oc;
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char *typename;
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char **cpuname;
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cpuname = g_strsplit(cpu_model, ",", 1);
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typename = g_strdup_printf(RISCV_CPU_TYPE_NAME("%s"), cpuname[0]);
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oc = object_class_by_name(typename);
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g_strfreev(cpuname);
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g_free(typename);
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if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU) ||
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object_class_is_abstract(oc)) {
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return NULL;
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}
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return oc;
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}
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static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags)
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{
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RISCVCPU *cpu = RISCV_CPU(cs);
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CPURISCVState *env = &cpu->env;
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int i;
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#if !defined(CONFIG_USER_ONLY)
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if (riscv_has_ext(env, RVH)) {
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qemu_fprintf(f, " %s %d\n", "V = ", riscv_cpu_virt_enabled(env));
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}
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#endif
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qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "pc ", env->pc);
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#ifndef CONFIG_USER_ONLY
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{
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static const int dump_csrs[] = {
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CSR_MHARTID,
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CSR_MSTATUS,
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CSR_MSTATUSH,
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CSR_HSTATUS,
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CSR_VSSTATUS,
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CSR_MIP,
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CSR_MIE,
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CSR_MIDELEG,
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CSR_HIDELEG,
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CSR_MEDELEG,
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CSR_HEDELEG,
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CSR_MTVEC,
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CSR_STVEC,
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CSR_VSTVEC,
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CSR_MEPC,
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CSR_SEPC,
|
|
CSR_VSEPC,
|
|
CSR_MCAUSE,
|
|
CSR_SCAUSE,
|
|
CSR_VSCAUSE,
|
|
CSR_MTVAL,
|
|
CSR_STVAL,
|
|
CSR_HTVAL,
|
|
CSR_MTVAL2,
|
|
CSR_MSCRATCH,
|
|
CSR_SSCRATCH,
|
|
CSR_SATP,
|
|
CSR_MMTE,
|
|
CSR_UPMBASE,
|
|
CSR_UPMMASK,
|
|
CSR_SPMBASE,
|
|
CSR_SPMMASK,
|
|
CSR_MPMBASE,
|
|
CSR_MPMMASK,
|
|
};
|
|
|
|
for (int i = 0; i < ARRAY_SIZE(dump_csrs); ++i) {
|
|
int csrno = dump_csrs[i];
|
|
target_ulong val = 0;
|
|
RISCVException res = riscv_csrrw_debug(env, csrno, &val, 0, 0);
|
|
|
|
/*
|
|
* Rely on the smode, hmode, etc, predicates within csr.c
|
|
* to do the filtering of the registers that are present.
|
|
*/
|
|
if (res == RISCV_EXCP_NONE) {
|
|
qemu_fprintf(f, " %-8s " TARGET_FMT_lx "\n",
|
|
csr_ops[csrno].name, val);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
qemu_fprintf(f, " %-8s " TARGET_FMT_lx,
|
|
riscv_int_regnames[i], env->gpr[i]);
|
|
if ((i & 3) == 3) {
|
|
qemu_fprintf(f, "\n");
|
|
}
|
|
}
|
|
if (flags & CPU_DUMP_FPU) {
|
|
for (i = 0; i < 32; i++) {
|
|
qemu_fprintf(f, " %-8s %016" PRIx64,
|
|
riscv_fpr_regnames[i], env->fpr[i]);
|
|
if ((i & 3) == 3) {
|
|
qemu_fprintf(f, "\n");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void riscv_cpu_set_pc(CPUState *cs, vaddr value)
|
|
{
|
|
RISCVCPU *cpu = RISCV_CPU(cs);
|
|
CPURISCVState *env = &cpu->env;
|
|
|
|
if (env->xl == MXL_RV32) {
|
|
env->pc = (int32_t)value;
|
|
} else {
|
|
env->pc = value;
|
|
}
|
|
}
|
|
|
|
static vaddr riscv_cpu_get_pc(CPUState *cs)
|
|
{
|
|
RISCVCPU *cpu = RISCV_CPU(cs);
|
|
CPURISCVState *env = &cpu->env;
|
|
|
|
/* Match cpu_get_tb_cpu_state. */
|
|
if (env->xl == MXL_RV32) {
|
|
return env->pc & UINT32_MAX;
|
|
}
|
|
return env->pc;
|
|
}
|
|
|
|
static void riscv_cpu_synchronize_from_tb(CPUState *cs,
|
|
const TranslationBlock *tb)
|
|
{
|
|
RISCVCPU *cpu = RISCV_CPU(cs);
|
|
CPURISCVState *env = &cpu->env;
|
|
RISCVMXL xl = FIELD_EX32(tb->flags, TB_FLAGS, XL);
|
|
|
|
if (xl == MXL_RV32) {
|
|
env->pc = (int32_t)tb_pc(tb);
|
|
} else {
|
|
env->pc = tb_pc(tb);
|
|
}
|
|
}
|
|
|
|
static bool riscv_cpu_has_work(CPUState *cs)
|
|
{
|
|
#ifndef CONFIG_USER_ONLY
|
|
RISCVCPU *cpu = RISCV_CPU(cs);
|
|
CPURISCVState *env = &cpu->env;
|
|
/*
|
|
* Definition of the WFI instruction requires it to ignore the privilege
|
|
* mode and delegation registers, but respect individual enables
|
|
*/
|
|
return riscv_cpu_all_pending(env) != 0;
|
|
#else
|
|
return true;
|
|
#endif
|
|
}
|
|
|
|
static void riscv_restore_state_to_opc(CPUState *cs,
|
|
const TranslationBlock *tb,
|
|
const uint64_t *data)
|
|
{
|
|
RISCVCPU *cpu = RISCV_CPU(cs);
|
|
CPURISCVState *env = &cpu->env;
|
|
RISCVMXL xl = FIELD_EX32(tb->flags, TB_FLAGS, XL);
|
|
|
|
if (xl == MXL_RV32) {
|
|
env->pc = (int32_t)data[0];
|
|
} else {
|
|
env->pc = data[0];
|
|
}
|
|
env->bins = data[1];
|
|
}
|
|
|
|
static void riscv_cpu_reset(DeviceState *dev)
|
|
{
|
|
#ifndef CONFIG_USER_ONLY
|
|
uint8_t iprio;
|
|
int i, irq, rdzero;
|
|
#endif
|
|
CPUState *cs = CPU(dev);
|
|
RISCVCPU *cpu = RISCV_CPU(cs);
|
|
RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu);
|
|
CPURISCVState *env = &cpu->env;
|
|
|
|
mcc->parent_reset(dev);
|
|
#ifndef CONFIG_USER_ONLY
|
|
env->misa_mxl = env->misa_mxl_max;
|
|
env->priv = PRV_M;
|
|
env->mstatus &= ~(MSTATUS_MIE | MSTATUS_MPRV);
|
|
if (env->misa_mxl > MXL_RV32) {
|
|
/*
|
|
* The reset status of SXL/UXL is undefined, but mstatus is WARL
|
|
* and we must ensure that the value after init is valid for read.
|
|
*/
|
|
env->mstatus = set_field(env->mstatus, MSTATUS64_SXL, env->misa_mxl);
|
|
env->mstatus = set_field(env->mstatus, MSTATUS64_UXL, env->misa_mxl);
|
|
if (riscv_has_ext(env, RVH)) {
|
|
env->vsstatus = set_field(env->vsstatus,
|
|
MSTATUS64_SXL, env->misa_mxl);
|
|
env->vsstatus = set_field(env->vsstatus,
|
|
MSTATUS64_UXL, env->misa_mxl);
|
|
env->mstatus_hs = set_field(env->mstatus_hs,
|
|
MSTATUS64_SXL, env->misa_mxl);
|
|
env->mstatus_hs = set_field(env->mstatus_hs,
|
|
MSTATUS64_UXL, env->misa_mxl);
|
|
}
|
|
}
|
|
env->mcause = 0;
|
|
env->miclaim = MIP_SGEIP;
|
|
env->pc = env->resetvec;
|
|
env->bins = 0;
|
|
env->two_stage_lookup = false;
|
|
|
|
/* Initialized default priorities of local interrupts. */
|
|
for (i = 0; i < ARRAY_SIZE(env->miprio); i++) {
|
|
iprio = riscv_cpu_default_priority(i);
|
|
env->miprio[i] = (i == IRQ_M_EXT) ? 0 : iprio;
|
|
env->siprio[i] = (i == IRQ_S_EXT) ? 0 : iprio;
|
|
env->hviprio[i] = 0;
|
|
}
|
|
i = 0;
|
|
while (!riscv_cpu_hviprio_index2irq(i, &irq, &rdzero)) {
|
|
if (!rdzero) {
|
|
env->hviprio[irq] = env->miprio[irq];
|
|
}
|
|
i++;
|
|
}
|
|
/* mmte is supposed to have pm.current hardwired to 1 */
|
|
env->mmte |= (PM_EXT_INITIAL | MMTE_M_PM_CURRENT);
|
|
#endif
|
|
env->xl = riscv_cpu_mxl(env);
|
|
riscv_cpu_update_mask(env);
|
|
cs->exception_index = RISCV_EXCP_NONE;
|
|
env->load_res = -1;
|
|
set_default_nan_mode(1, &env->fp_status);
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
if (riscv_feature(env, RISCV_FEATURE_DEBUG)) {
|
|
riscv_trigger_init(env);
|
|
}
|
|
|
|
if (kvm_enabled()) {
|
|
kvm_riscv_reset_vcpu(cpu);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static void riscv_cpu_disas_set_info(CPUState *s, disassemble_info *info)
|
|
{
|
|
RISCVCPU *cpu = RISCV_CPU(s);
|
|
|
|
switch (riscv_cpu_mxl(&cpu->env)) {
|
|
case MXL_RV32:
|
|
info->print_insn = print_insn_riscv32;
|
|
break;
|
|
case MXL_RV64:
|
|
info->print_insn = print_insn_riscv64;
|
|
break;
|
|
case MXL_RV128:
|
|
info->print_insn = print_insn_riscv128;
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
}
|
|
|
|
static void riscv_cpu_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
CPUState *cs = CPU(dev);
|
|
RISCVCPU *cpu = RISCV_CPU(dev);
|
|
CPURISCVState *env = &cpu->env;
|
|
RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev);
|
|
CPUClass *cc = CPU_CLASS(mcc);
|
|
int i, priv_version = -1;
|
|
Error *local_err = NULL;
|
|
|
|
cpu_exec_realizefn(cs, &local_err);
|
|
if (local_err != NULL) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
|
|
if (cpu->cfg.priv_spec) {
|
|
if (!g_strcmp0(cpu->cfg.priv_spec, "v1.12.0")) {
|
|
priv_version = PRIV_VERSION_1_12_0;
|
|
} else if (!g_strcmp0(cpu->cfg.priv_spec, "v1.11.0")) {
|
|
priv_version = PRIV_VERSION_1_11_0;
|
|
} else if (!g_strcmp0(cpu->cfg.priv_spec, "v1.10.0")) {
|
|
priv_version = PRIV_VERSION_1_10_0;
|
|
} else {
|
|
error_setg(errp,
|
|
"Unsupported privilege spec version '%s'",
|
|
cpu->cfg.priv_spec);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (priv_version >= PRIV_VERSION_1_10_0) {
|
|
set_priv_version(env, priv_version);
|
|
}
|
|
|
|
/* Force disable extensions if priv spec version does not match */
|
|
for (i = 0; i < ARRAY_SIZE(isa_edata_arr); i++) {
|
|
if (isa_ext_is_enabled(cpu, &isa_edata_arr[i]) &&
|
|
(env->priv_ver < isa_edata_arr[i].min_version)) {
|
|
isa_ext_update_enabled(cpu, &isa_edata_arr[i], false);
|
|
#ifndef CONFIG_USER_ONLY
|
|
warn_report("disabling %s extension for hart 0x%lx because "
|
|
"privilege spec version does not match",
|
|
isa_edata_arr[i].name, (unsigned long)env->mhartid);
|
|
#else
|
|
warn_report("disabling %s extension because "
|
|
"privilege spec version does not match",
|
|
isa_edata_arr[i].name);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if (cpu->cfg.mmu) {
|
|
riscv_set_feature(env, RISCV_FEATURE_MMU);
|
|
}
|
|
|
|
if (cpu->cfg.pmp) {
|
|
riscv_set_feature(env, RISCV_FEATURE_PMP);
|
|
|
|
/*
|
|
* Enhanced PMP should only be available
|
|
* on harts with PMP support
|
|
*/
|
|
if (cpu->cfg.epmp) {
|
|
riscv_set_feature(env, RISCV_FEATURE_EPMP);
|
|
}
|
|
}
|
|
|
|
if (cpu->cfg.debug) {
|
|
riscv_set_feature(env, RISCV_FEATURE_DEBUG);
|
|
}
|
|
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
if (cpu->cfg.ext_sstc) {
|
|
riscv_timer_init(cpu);
|
|
}
|
|
#endif /* CONFIG_USER_ONLY */
|
|
|
|
/* Validate that MISA_MXL is set properly. */
|
|
switch (env->misa_mxl_max) {
|
|
#ifdef TARGET_RISCV64
|
|
case MXL_RV64:
|
|
case MXL_RV128:
|
|
cc->gdb_core_xml_file = "riscv-64bit-cpu.xml";
|
|
break;
|
|
#endif
|
|
case MXL_RV32:
|
|
cc->gdb_core_xml_file = "riscv-32bit-cpu.xml";
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
assert(env->misa_mxl_max == env->misa_mxl);
|
|
|
|
/* If only MISA_EXT is unset for misa, then set it from properties */
|
|
if (env->misa_ext == 0) {
|
|
uint32_t ext = 0;
|
|
|
|
/* Do some ISA extension error checking */
|
|
if (cpu->cfg.ext_g && !(cpu->cfg.ext_i && cpu->cfg.ext_m &&
|
|
cpu->cfg.ext_a && cpu->cfg.ext_f &&
|
|
cpu->cfg.ext_d &&
|
|
cpu->cfg.ext_icsr && cpu->cfg.ext_ifencei)) {
|
|
warn_report("Setting G will also set IMAFD_Zicsr_Zifencei");
|
|
cpu->cfg.ext_i = true;
|
|
cpu->cfg.ext_m = true;
|
|
cpu->cfg.ext_a = true;
|
|
cpu->cfg.ext_f = true;
|
|
cpu->cfg.ext_d = true;
|
|
cpu->cfg.ext_icsr = true;
|
|
cpu->cfg.ext_ifencei = true;
|
|
}
|
|
|
|
if (cpu->cfg.ext_i && cpu->cfg.ext_e) {
|
|
error_setg(errp,
|
|
"I and E extensions are incompatible");
|
|
return;
|
|
}
|
|
|
|
if (!cpu->cfg.ext_i && !cpu->cfg.ext_e) {
|
|
error_setg(errp,
|
|
"Either I or E extension must be set");
|
|
return;
|
|
}
|
|
|
|
if (cpu->cfg.ext_s && !cpu->cfg.ext_u) {
|
|
error_setg(errp,
|
|
"Setting S extension without U extension is illegal");
|
|
return;
|
|
}
|
|
|
|
if (cpu->cfg.ext_h && !cpu->cfg.ext_i) {
|
|
error_setg(errp,
|
|
"H depends on an I base integer ISA with 32 x registers");
|
|
return;
|
|
}
|
|
|
|
if (cpu->cfg.ext_h && !cpu->cfg.ext_s) {
|
|
error_setg(errp, "H extension implicitly requires S-mode");
|
|
return;
|
|
}
|
|
|
|
if (cpu->cfg.ext_f && !cpu->cfg.ext_icsr) {
|
|
error_setg(errp, "F extension requires Zicsr");
|
|
return;
|
|
}
|
|
|
|
if ((cpu->cfg.ext_zfh || cpu->cfg.ext_zfhmin) && !cpu->cfg.ext_f) {
|
|
error_setg(errp, "Zfh/Zfhmin extensions require F extension");
|
|
return;
|
|
}
|
|
|
|
if (cpu->cfg.ext_d && !cpu->cfg.ext_f) {
|
|
error_setg(errp, "D extension requires F extension");
|
|
return;
|
|
}
|
|
|
|
if (cpu->cfg.ext_v && !cpu->cfg.ext_d) {
|
|
error_setg(errp, "V extension requires D extension");
|
|
return;
|
|
}
|
|
|
|
if ((cpu->cfg.ext_zve32f || cpu->cfg.ext_zve64f) && !cpu->cfg.ext_f) {
|
|
error_setg(errp, "Zve32f/Zve64f extensions require F extension");
|
|
return;
|
|
}
|
|
|
|
/* Set the ISA extensions, checks should have happened above */
|
|
if (cpu->cfg.ext_zdinx || cpu->cfg.ext_zhinx ||
|
|
cpu->cfg.ext_zhinxmin) {
|
|
cpu->cfg.ext_zfinx = true;
|
|
}
|
|
|
|
if (cpu->cfg.ext_zfinx) {
|
|
if (!cpu->cfg.ext_icsr) {
|
|
error_setg(errp, "Zfinx extension requires Zicsr");
|
|
return;
|
|
}
|
|
if (cpu->cfg.ext_f) {
|
|
error_setg(errp,
|
|
"Zfinx cannot be supported together with F extension");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (cpu->cfg.ext_zk) {
|
|
cpu->cfg.ext_zkn = true;
|
|
cpu->cfg.ext_zkr = true;
|
|
cpu->cfg.ext_zkt = true;
|
|
}
|
|
|
|
if (cpu->cfg.ext_zkn) {
|
|
cpu->cfg.ext_zbkb = true;
|
|
cpu->cfg.ext_zbkc = true;
|
|
cpu->cfg.ext_zbkx = true;
|
|
cpu->cfg.ext_zkne = true;
|
|
cpu->cfg.ext_zknd = true;
|
|
cpu->cfg.ext_zknh = true;
|
|
}
|
|
|
|
if (cpu->cfg.ext_zks) {
|
|
cpu->cfg.ext_zbkb = true;
|
|
cpu->cfg.ext_zbkc = true;
|
|
cpu->cfg.ext_zbkx = true;
|
|
cpu->cfg.ext_zksed = true;
|
|
cpu->cfg.ext_zksh = true;
|
|
}
|
|
|
|
if (cpu->cfg.ext_i) {
|
|
ext |= RVI;
|
|
}
|
|
if (cpu->cfg.ext_e) {
|
|
ext |= RVE;
|
|
}
|
|
if (cpu->cfg.ext_m) {
|
|
ext |= RVM;
|
|
}
|
|
if (cpu->cfg.ext_a) {
|
|
ext |= RVA;
|
|
}
|
|
if (cpu->cfg.ext_f) {
|
|
ext |= RVF;
|
|
}
|
|
if (cpu->cfg.ext_d) {
|
|
ext |= RVD;
|
|
}
|
|
if (cpu->cfg.ext_c) {
|
|
ext |= RVC;
|
|
}
|
|
if (cpu->cfg.ext_s) {
|
|
ext |= RVS;
|
|
}
|
|
if (cpu->cfg.ext_u) {
|
|
ext |= RVU;
|
|
}
|
|
if (cpu->cfg.ext_h) {
|
|
ext |= RVH;
|
|
}
|
|
if (cpu->cfg.ext_v) {
|
|
int vext_version = VEXT_VERSION_1_00_0;
|
|
ext |= RVV;
|
|
if (!is_power_of_2(cpu->cfg.vlen)) {
|
|
error_setg(errp,
|
|
"Vector extension VLEN must be power of 2");
|
|
return;
|
|
}
|
|
if (cpu->cfg.vlen > RV_VLEN_MAX || cpu->cfg.vlen < 128) {
|
|
error_setg(errp,
|
|
"Vector extension implementation only supports VLEN "
|
|
"in the range [128, %d]", RV_VLEN_MAX);
|
|
return;
|
|
}
|
|
if (!is_power_of_2(cpu->cfg.elen)) {
|
|
error_setg(errp,
|
|
"Vector extension ELEN must be power of 2");
|
|
return;
|
|
}
|
|
if (cpu->cfg.elen > 64 || cpu->cfg.vlen < 8) {
|
|
error_setg(errp,
|
|
"Vector extension implementation only supports ELEN "
|
|
"in the range [8, 64]");
|
|
return;
|
|
}
|
|
if (cpu->cfg.vext_spec) {
|
|
if (!g_strcmp0(cpu->cfg.vext_spec, "v1.0")) {
|
|
vext_version = VEXT_VERSION_1_00_0;
|
|
} else {
|
|
error_setg(errp,
|
|
"Unsupported vector spec version '%s'",
|
|
cpu->cfg.vext_spec);
|
|
return;
|
|
}
|
|
} else {
|
|
qemu_log("vector version is not specified, "
|
|
"use the default value v1.0\n");
|
|
}
|
|
set_vext_version(env, vext_version);
|
|
}
|
|
if (cpu->cfg.ext_j) {
|
|
ext |= RVJ;
|
|
}
|
|
|
|
set_misa(env, env->misa_mxl, ext);
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
if (cpu->cfg.pmu_num) {
|
|
if (!riscv_pmu_init(cpu, cpu->cfg.pmu_num) && cpu->cfg.ext_sscofpmf) {
|
|
cpu->pmu_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
|
|
riscv_pmu_timer_cb, cpu);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
riscv_cpu_register_gdb_regs_for_features(cs);
|
|
|
|
qemu_init_vcpu(cs);
|
|
cpu_reset(cs);
|
|
|
|
mcc->parent_realize(dev, errp);
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
static void riscv_cpu_set_irq(void *opaque, int irq, int level)
|
|
{
|
|
RISCVCPU *cpu = RISCV_CPU(opaque);
|
|
CPURISCVState *env = &cpu->env;
|
|
|
|
if (irq < IRQ_LOCAL_MAX) {
|
|
switch (irq) {
|
|
case IRQ_U_SOFT:
|
|
case IRQ_S_SOFT:
|
|
case IRQ_VS_SOFT:
|
|
case IRQ_M_SOFT:
|
|
case IRQ_U_TIMER:
|
|
case IRQ_S_TIMER:
|
|
case IRQ_VS_TIMER:
|
|
case IRQ_M_TIMER:
|
|
case IRQ_U_EXT:
|
|
case IRQ_VS_EXT:
|
|
case IRQ_M_EXT:
|
|
if (kvm_enabled()) {
|
|
kvm_riscv_set_irq(cpu, irq, level);
|
|
} else {
|
|
riscv_cpu_update_mip(cpu, 1 << irq, BOOL_TO_MASK(level));
|
|
}
|
|
break;
|
|
case IRQ_S_EXT:
|
|
if (kvm_enabled()) {
|
|
kvm_riscv_set_irq(cpu, irq, level);
|
|
} else {
|
|
env->external_seip = level;
|
|
riscv_cpu_update_mip(cpu, 1 << irq,
|
|
BOOL_TO_MASK(level | env->software_seip));
|
|
}
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
} else if (irq < (IRQ_LOCAL_MAX + IRQ_LOCAL_GUEST_MAX)) {
|
|
/* Require H-extension for handling guest local interrupts */
|
|
if (!riscv_has_ext(env, RVH)) {
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
/* Compute bit position in HGEIP CSR */
|
|
irq = irq - IRQ_LOCAL_MAX + 1;
|
|
if (env->geilen < irq) {
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
/* Update HGEIP CSR */
|
|
env->hgeip &= ~((target_ulong)1 << irq);
|
|
if (level) {
|
|
env->hgeip |= (target_ulong)1 << irq;
|
|
}
|
|
|
|
/* Update mip.SGEIP bit */
|
|
riscv_cpu_update_mip(cpu, MIP_SGEIP,
|
|
BOOL_TO_MASK(!!(env->hgeie & env->hgeip)));
|
|
} else {
|
|
g_assert_not_reached();
|
|
}
|
|
}
|
|
#endif /* CONFIG_USER_ONLY */
|
|
|
|
static void riscv_cpu_init(Object *obj)
|
|
{
|
|
RISCVCPU *cpu = RISCV_CPU(obj);
|
|
|
|
cpu->cfg.ext_ifencei = true;
|
|
cpu->cfg.ext_icsr = true;
|
|
cpu->cfg.mmu = true;
|
|
cpu->cfg.pmp = true;
|
|
|
|
cpu_set_cpustate_pointers(cpu);
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
qdev_init_gpio_in(DEVICE(cpu), riscv_cpu_set_irq,
|
|
IRQ_LOCAL_MAX + IRQ_LOCAL_GUEST_MAX);
|
|
#endif /* CONFIG_USER_ONLY */
|
|
}
|
|
|
|
static Property riscv_cpu_extensions[] = {
|
|
/* Defaults for standard extensions */
|
|
DEFINE_PROP_BOOL("i", RISCVCPU, cfg.ext_i, true),
|
|
DEFINE_PROP_BOOL("e", RISCVCPU, cfg.ext_e, false),
|
|
DEFINE_PROP_BOOL("g", RISCVCPU, cfg.ext_g, false),
|
|
DEFINE_PROP_BOOL("m", RISCVCPU, cfg.ext_m, true),
|
|
DEFINE_PROP_BOOL("a", RISCVCPU, cfg.ext_a, true),
|
|
DEFINE_PROP_BOOL("f", RISCVCPU, cfg.ext_f, true),
|
|
DEFINE_PROP_BOOL("d", RISCVCPU, cfg.ext_d, true),
|
|
DEFINE_PROP_BOOL("c", RISCVCPU, cfg.ext_c, true),
|
|
DEFINE_PROP_BOOL("s", RISCVCPU, cfg.ext_s, true),
|
|
DEFINE_PROP_BOOL("u", RISCVCPU, cfg.ext_u, true),
|
|
DEFINE_PROP_BOOL("v", RISCVCPU, cfg.ext_v, false),
|
|
DEFINE_PROP_BOOL("h", RISCVCPU, cfg.ext_h, true),
|
|
DEFINE_PROP_UINT8("pmu-num", RISCVCPU, cfg.pmu_num, 16),
|
|
DEFINE_PROP_BOOL("sscofpmf", RISCVCPU, cfg.ext_sscofpmf, false),
|
|
DEFINE_PROP_BOOL("Zifencei", RISCVCPU, cfg.ext_ifencei, true),
|
|
DEFINE_PROP_BOOL("Zicsr", RISCVCPU, cfg.ext_icsr, true),
|
|
DEFINE_PROP_BOOL("Zihintpause", RISCVCPU, cfg.ext_zihintpause, true),
|
|
DEFINE_PROP_BOOL("Zfh", RISCVCPU, cfg.ext_zfh, false),
|
|
DEFINE_PROP_BOOL("Zfhmin", RISCVCPU, cfg.ext_zfhmin, false),
|
|
DEFINE_PROP_BOOL("Zve32f", RISCVCPU, cfg.ext_zve32f, false),
|
|
DEFINE_PROP_BOOL("Zve64f", RISCVCPU, cfg.ext_zve64f, false),
|
|
DEFINE_PROP_BOOL("mmu", RISCVCPU, cfg.mmu, true),
|
|
DEFINE_PROP_BOOL("pmp", RISCVCPU, cfg.pmp, true),
|
|
DEFINE_PROP_BOOL("sstc", RISCVCPU, cfg.ext_sstc, true),
|
|
|
|
DEFINE_PROP_STRING("priv_spec", RISCVCPU, cfg.priv_spec),
|
|
DEFINE_PROP_STRING("vext_spec", RISCVCPU, cfg.vext_spec),
|
|
DEFINE_PROP_UINT16("vlen", RISCVCPU, cfg.vlen, 128),
|
|
DEFINE_PROP_UINT16("elen", RISCVCPU, cfg.elen, 64),
|
|
|
|
DEFINE_PROP_BOOL("svinval", RISCVCPU, cfg.ext_svinval, false),
|
|
DEFINE_PROP_BOOL("svnapot", RISCVCPU, cfg.ext_svnapot, false),
|
|
DEFINE_PROP_BOOL("svpbmt", RISCVCPU, cfg.ext_svpbmt, false),
|
|
|
|
DEFINE_PROP_BOOL("zba", RISCVCPU, cfg.ext_zba, true),
|
|
DEFINE_PROP_BOOL("zbb", RISCVCPU, cfg.ext_zbb, true),
|
|
DEFINE_PROP_BOOL("zbc", RISCVCPU, cfg.ext_zbc, true),
|
|
DEFINE_PROP_BOOL("zbkb", RISCVCPU, cfg.ext_zbkb, false),
|
|
DEFINE_PROP_BOOL("zbkc", RISCVCPU, cfg.ext_zbkc, false),
|
|
DEFINE_PROP_BOOL("zbkx", RISCVCPU, cfg.ext_zbkx, false),
|
|
DEFINE_PROP_BOOL("zbs", RISCVCPU, cfg.ext_zbs, true),
|
|
DEFINE_PROP_BOOL("zk", RISCVCPU, cfg.ext_zk, false),
|
|
DEFINE_PROP_BOOL("zkn", RISCVCPU, cfg.ext_zkn, false),
|
|
DEFINE_PROP_BOOL("zknd", RISCVCPU, cfg.ext_zknd, false),
|
|
DEFINE_PROP_BOOL("zkne", RISCVCPU, cfg.ext_zkne, false),
|
|
DEFINE_PROP_BOOL("zknh", RISCVCPU, cfg.ext_zknh, false),
|
|
DEFINE_PROP_BOOL("zkr", RISCVCPU, cfg.ext_zkr, false),
|
|
DEFINE_PROP_BOOL("zks", RISCVCPU, cfg.ext_zks, false),
|
|
DEFINE_PROP_BOOL("zksed", RISCVCPU, cfg.ext_zksed, false),
|
|
DEFINE_PROP_BOOL("zksh", RISCVCPU, cfg.ext_zksh, false),
|
|
DEFINE_PROP_BOOL("zkt", RISCVCPU, cfg.ext_zkt, false),
|
|
|
|
DEFINE_PROP_BOOL("zdinx", RISCVCPU, cfg.ext_zdinx, false),
|
|
DEFINE_PROP_BOOL("zfinx", RISCVCPU, cfg.ext_zfinx, false),
|
|
DEFINE_PROP_BOOL("zhinx", RISCVCPU, cfg.ext_zhinx, false),
|
|
DEFINE_PROP_BOOL("zhinxmin", RISCVCPU, cfg.ext_zhinxmin, false),
|
|
|
|
DEFINE_PROP_BOOL("zmmul", RISCVCPU, cfg.ext_zmmul, false),
|
|
|
|
/* Vendor-specific custom extensions */
|
|
DEFINE_PROP_BOOL("xventanacondops", RISCVCPU, cfg.ext_XVentanaCondOps, false),
|
|
|
|
/* These are experimental so mark with 'x-' */
|
|
DEFINE_PROP_BOOL("x-j", RISCVCPU, cfg.ext_j, false),
|
|
/* ePMP 0.9.3 */
|
|
DEFINE_PROP_BOOL("x-epmp", RISCVCPU, cfg.epmp, false),
|
|
DEFINE_PROP_BOOL("x-smaia", RISCVCPU, cfg.ext_smaia, false),
|
|
DEFINE_PROP_BOOL("x-ssaia", RISCVCPU, cfg.ext_ssaia, false),
|
|
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void register_cpu_props(DeviceState *dev)
|
|
{
|
|
Property *prop;
|
|
|
|
for (prop = riscv_cpu_extensions; prop && prop->name; prop++) {
|
|
qdev_property_add_static(dev, prop);
|
|
}
|
|
}
|
|
|
|
static Property riscv_cpu_properties[] = {
|
|
DEFINE_PROP_BOOL("debug", RISCVCPU, cfg.debug, true),
|
|
|
|
DEFINE_PROP_UINT32("mvendorid", RISCVCPU, cfg.mvendorid, 0),
|
|
DEFINE_PROP_UINT64("marchid", RISCVCPU, cfg.marchid, RISCV_CPU_MARCHID),
|
|
DEFINE_PROP_UINT64("mimpid", RISCVCPU, cfg.mimpid, RISCV_CPU_MIMPID),
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
DEFINE_PROP_UINT64("resetvec", RISCVCPU, env.resetvec, DEFAULT_RSTVEC),
|
|
#endif
|
|
|
|
DEFINE_PROP_BOOL("short-isa-string", RISCVCPU, cfg.short_isa_string, false),
|
|
|
|
DEFINE_PROP_BOOL("rvv_ta_all_1s", RISCVCPU, cfg.rvv_ta_all_1s, false),
|
|
DEFINE_PROP_BOOL("rvv_ma_all_1s", RISCVCPU, cfg.rvv_ma_all_1s, false),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static gchar *riscv_gdb_arch_name(CPUState *cs)
|
|
{
|
|
RISCVCPU *cpu = RISCV_CPU(cs);
|
|
CPURISCVState *env = &cpu->env;
|
|
|
|
switch (riscv_cpu_mxl(env)) {
|
|
case MXL_RV32:
|
|
return g_strdup("riscv:rv32");
|
|
case MXL_RV64:
|
|
case MXL_RV128:
|
|
return g_strdup("riscv:rv64");
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
}
|
|
|
|
static const char *riscv_gdb_get_dynamic_xml(CPUState *cs, const char *xmlname)
|
|
{
|
|
RISCVCPU *cpu = RISCV_CPU(cs);
|
|
|
|
if (strcmp(xmlname, "riscv-csr.xml") == 0) {
|
|
return cpu->dyn_csr_xml;
|
|
} else if (strcmp(xmlname, "riscv-vector.xml") == 0) {
|
|
return cpu->dyn_vreg_xml;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
#include "hw/core/sysemu-cpu-ops.h"
|
|
|
|
static const struct SysemuCPUOps riscv_sysemu_ops = {
|
|
.get_phys_page_debug = riscv_cpu_get_phys_page_debug,
|
|
.write_elf64_note = riscv_cpu_write_elf64_note,
|
|
.write_elf32_note = riscv_cpu_write_elf32_note,
|
|
.legacy_vmsd = &vmstate_riscv_cpu,
|
|
};
|
|
#endif
|
|
|
|
#include "hw/core/tcg-cpu-ops.h"
|
|
|
|
static const struct TCGCPUOps riscv_tcg_ops = {
|
|
.initialize = riscv_translate_init,
|
|
.synchronize_from_tb = riscv_cpu_synchronize_from_tb,
|
|
.restore_state_to_opc = riscv_restore_state_to_opc,
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
.tlb_fill = riscv_cpu_tlb_fill,
|
|
.cpu_exec_interrupt = riscv_cpu_exec_interrupt,
|
|
.do_interrupt = riscv_cpu_do_interrupt,
|
|
.do_transaction_failed = riscv_cpu_do_transaction_failed,
|
|
.do_unaligned_access = riscv_cpu_do_unaligned_access,
|
|
.debug_excp_handler = riscv_cpu_debug_excp_handler,
|
|
.debug_check_breakpoint = riscv_cpu_debug_check_breakpoint,
|
|
.debug_check_watchpoint = riscv_cpu_debug_check_watchpoint,
|
|
#endif /* !CONFIG_USER_ONLY */
|
|
};
|
|
|
|
static void riscv_cpu_class_init(ObjectClass *c, void *data)
|
|
{
|
|
RISCVCPUClass *mcc = RISCV_CPU_CLASS(c);
|
|
CPUClass *cc = CPU_CLASS(c);
|
|
DeviceClass *dc = DEVICE_CLASS(c);
|
|
|
|
device_class_set_parent_realize(dc, riscv_cpu_realize,
|
|
&mcc->parent_realize);
|
|
|
|
device_class_set_parent_reset(dc, riscv_cpu_reset, &mcc->parent_reset);
|
|
|
|
cc->class_by_name = riscv_cpu_class_by_name;
|
|
cc->has_work = riscv_cpu_has_work;
|
|
cc->dump_state = riscv_cpu_dump_state;
|
|
cc->set_pc = riscv_cpu_set_pc;
|
|
cc->get_pc = riscv_cpu_get_pc;
|
|
cc->gdb_read_register = riscv_cpu_gdb_read_register;
|
|
cc->gdb_write_register = riscv_cpu_gdb_write_register;
|
|
cc->gdb_num_core_regs = 33;
|
|
cc->gdb_stop_before_watchpoint = true;
|
|
cc->disas_set_info = riscv_cpu_disas_set_info;
|
|
#ifndef CONFIG_USER_ONLY
|
|
cc->sysemu_ops = &riscv_sysemu_ops;
|
|
#endif
|
|
cc->gdb_arch_name = riscv_gdb_arch_name;
|
|
cc->gdb_get_dynamic_xml = riscv_gdb_get_dynamic_xml;
|
|
cc->tcg_ops = &riscv_tcg_ops;
|
|
|
|
device_class_set_props(dc, riscv_cpu_properties);
|
|
}
|
|
|
|
static void riscv_isa_string_ext(RISCVCPU *cpu, char **isa_str, int max_str_len)
|
|
{
|
|
char *old = *isa_str;
|
|
char *new = *isa_str;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(isa_edata_arr); i++) {
|
|
if (isa_edata_arr[i].multi_letter &&
|
|
isa_ext_is_enabled(cpu, &isa_edata_arr[i])) {
|
|
new = g_strconcat(old, "_", isa_edata_arr[i].name, NULL);
|
|
g_free(old);
|
|
old = new;
|
|
}
|
|
}
|
|
|
|
*isa_str = new;
|
|
}
|
|
|
|
char *riscv_isa_string(RISCVCPU *cpu)
|
|
{
|
|
int i;
|
|
const size_t maxlen = sizeof("rv128") + sizeof(riscv_single_letter_exts);
|
|
char *isa_str = g_new(char, maxlen);
|
|
char *p = isa_str + snprintf(isa_str, maxlen, "rv%d", TARGET_LONG_BITS);
|
|
for (i = 0; i < sizeof(riscv_single_letter_exts) - 1; i++) {
|
|
if (cpu->env.misa_ext & RV(riscv_single_letter_exts[i])) {
|
|
*p++ = qemu_tolower(riscv_single_letter_exts[i]);
|
|
}
|
|
}
|
|
*p = '\0';
|
|
if (!cpu->cfg.short_isa_string) {
|
|
riscv_isa_string_ext(cpu, &isa_str, maxlen);
|
|
}
|
|
return isa_str;
|
|
}
|
|
|
|
static gint riscv_cpu_list_compare(gconstpointer a, gconstpointer b)
|
|
{
|
|
ObjectClass *class_a = (ObjectClass *)a;
|
|
ObjectClass *class_b = (ObjectClass *)b;
|
|
const char *name_a, *name_b;
|
|
|
|
name_a = object_class_get_name(class_a);
|
|
name_b = object_class_get_name(class_b);
|
|
return strcmp(name_a, name_b);
|
|
}
|
|
|
|
static void riscv_cpu_list_entry(gpointer data, gpointer user_data)
|
|
{
|
|
const char *typename = object_class_get_name(OBJECT_CLASS(data));
|
|
int len = strlen(typename) - strlen(RISCV_CPU_TYPE_SUFFIX);
|
|
|
|
qemu_printf("%.*s\n", len, typename);
|
|
}
|
|
|
|
void riscv_cpu_list(void)
|
|
{
|
|
GSList *list;
|
|
|
|
list = object_class_get_list(TYPE_RISCV_CPU, false);
|
|
list = g_slist_sort(list, riscv_cpu_list_compare);
|
|
g_slist_foreach(list, riscv_cpu_list_entry, NULL);
|
|
g_slist_free(list);
|
|
}
|
|
|
|
#define DEFINE_CPU(type_name, initfn) \
|
|
{ \
|
|
.name = type_name, \
|
|
.parent = TYPE_RISCV_CPU, \
|
|
.instance_init = initfn \
|
|
}
|
|
|
|
static const TypeInfo riscv_cpu_type_infos[] = {
|
|
{
|
|
.name = TYPE_RISCV_CPU,
|
|
.parent = TYPE_CPU,
|
|
.instance_size = sizeof(RISCVCPU),
|
|
.instance_align = __alignof__(RISCVCPU),
|
|
.instance_init = riscv_cpu_init,
|
|
.abstract = true,
|
|
.class_size = sizeof(RISCVCPUClass),
|
|
.class_init = riscv_cpu_class_init,
|
|
},
|
|
DEFINE_CPU(TYPE_RISCV_CPU_ANY, riscv_any_cpu_init),
|
|
#if defined(CONFIG_KVM)
|
|
DEFINE_CPU(TYPE_RISCV_CPU_HOST, riscv_host_cpu_init),
|
|
#endif
|
|
#if defined(TARGET_RISCV32)
|
|
DEFINE_CPU(TYPE_RISCV_CPU_BASE32, rv32_base_cpu_init),
|
|
DEFINE_CPU(TYPE_RISCV_CPU_IBEX, rv32_ibex_cpu_init),
|
|
DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E31, rv32_sifive_e_cpu_init),
|
|
DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E34, rv32_imafcu_nommu_cpu_init),
|
|
DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U34, rv32_sifive_u_cpu_init),
|
|
#elif defined(TARGET_RISCV64)
|
|
DEFINE_CPU(TYPE_RISCV_CPU_BASE64, rv64_base_cpu_init),
|
|
DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E51, rv64_sifive_e_cpu_init),
|
|
DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U54, rv64_sifive_u_cpu_init),
|
|
DEFINE_CPU(TYPE_RISCV_CPU_SHAKTI_C, rv64_sifive_u_cpu_init),
|
|
DEFINE_CPU(TYPE_RISCV_CPU_BASE128, rv128_base_cpu_init),
|
|
#endif
|
|
};
|
|
|
|
DEFINE_TYPES(riscv_cpu_type_infos)
|