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b3df64c89b
qemu-e2k/target/riscv/cpu.c
Daniel Henrique Barboza b3df64c89b target/riscv: introduce riscv_cpu_add_misa_properties() 
Ever since RISCVCPUConfig got introduced users are able to set CPU extensions
in the command line. User settings are reflected in the cpu->cfg object
for later use. These properties are used in the target/riscv/cpu.c code,
most notably in riscv_cpu_validate_set_extensions(), where most of our
realize time validations are made.

And then there's env->misa_ext, the field where the MISA extensions are
set, that is read everywhere else. We need to keep env->misa_ext updated
with cpu->cfg settings, since our validations rely on it, forcing us to
make register_cpu_props() write cpu->cfg.ext_N flags to cover for named
CPUs that aren't used named properties but also needs to go through the
same validation steps. Failing to so will make those name CPUs fail
validation (see c66ffcd535 for more info). Not only that, but we also
need to sync env->misa_ext with cpu->cfg again during realize() time to
catch any change the user might have done, since the rest of the code
relies on that.

Making cpu->cfg.ext_N and env->misa_ext reflect each other is not
needed. What we want is a way for users to enable/disable MISA extensions,
and there's nothing stopping us from letting the user write env->misa_ext
directly. Here are the artifacts that will enable us to do that:

- RISCVCPUMisaExtConfig will declare each MISA property;

- cpu_set_misa_ext_cfg() is the setter for each property. We'll write
  env->misa_ext and env->misa_ext_mask with the appropriate misa_bit;
  cutting off cpu->cfg.ext_N from the logic;

- cpu_get_misa_ext_cfg() is a getter that will retrieve the current val
  of the property based on env->misa_ext;

- riscv_cpu_add_misa_properties() will be called in register_cpu_props()
  to init all MISA properties from the misa_ext_cfgs[] array.

With this infrastructure we'll start to get rid of each cpu->cfg.ext_N
attribute in the next patches.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230406180351.570807-5-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-05-05 10:49:50 +10:00

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/*
* QEMU RISC-V CPU
*
* Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
* Copyright (c) 2017-2018 SiFive, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "qemu/qemu-print.h"
#include "qemu/ctype.h"
#include "qemu/log.h"
#include "cpu.h"
#include "cpu_vendorid.h"
#include "pmu.h"
#include "internals.h"
#include "time_helper.h"
#include "exec/exec-all.h"
#include "qapi/error.h"
#include "qapi/visitor.h"
#include "qemu/error-report.h"
#include "hw/qdev-properties.h"
#include "migration/vmstate.h"
#include "fpu/softfloat-helpers.h"
#include "sysemu/kvm.h"
#include "kvm_riscv.h"
#include "tcg/tcg.h"
/* RISC-V CPU definitions */
#define RISCV_CPU_MARCHID ((QEMU_VERSION_MAJOR << 16) | \
(QEMU_VERSION_MINOR << 8) | \
(QEMU_VERSION_MICRO))
#define RISCV_CPU_MIMPID RISCV_CPU_MARCHID
static const char riscv_single_letter_exts[] = "IEMAFDQCPVH";
struct isa_ext_data {
const char *name;
int min_version;
int ext_enable_offset;
};
#define ISA_EXT_DATA_ENTRY(_name, _min_ver, _prop) \
{#_name, _min_ver, offsetof(struct RISCVCPUConfig, _prop)}
/*
* Here are the ordering rules of extension naming defined by RISC-V
* specification :
* 1. All extensions should be separated from other multi-letter extensions
* by an underscore.
* 2. The first letter following the 'Z' conventionally indicates the most
* closely related alphabetical extension category, IMAFDQLCBKJTPVH.
* If multiple 'Z' extensions are named, they should be ordered first
* by category, then alphabetically within a category.
* 3. Standard supervisor-level extensions (starts with 'S') should be
* listed after standard unprivileged extensions. If multiple
* supervisor-level extensions are listed, they should be ordered
* alphabetically.
* 4. Non-standard extensions (starts with 'X') must be listed after all
* standard extensions. They must be separated from other multi-letter
* extensions by an underscore.
*
* Single letter extensions are checked in riscv_cpu_validate_misa_priv()
* instead.
*/
static const struct isa_ext_data isa_edata_arr[] = {
ISA_EXT_DATA_ENTRY(zicbom, PRIV_VERSION_1_12_0, ext_icbom),
ISA_EXT_DATA_ENTRY(zicboz, PRIV_VERSION_1_12_0, ext_icboz),
ISA_EXT_DATA_ENTRY(zicond, PRIV_VERSION_1_12_0, ext_zicond),
ISA_EXT_DATA_ENTRY(zicsr, PRIV_VERSION_1_10_0, ext_icsr),
ISA_EXT_DATA_ENTRY(zifencei, PRIV_VERSION_1_10_0, ext_ifencei),
ISA_EXT_DATA_ENTRY(zihintpause, PRIV_VERSION_1_10_0, ext_zihintpause),
ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs),
ISA_EXT_DATA_ENTRY(zfh, PRIV_VERSION_1_11_0, ext_zfh),
ISA_EXT_DATA_ENTRY(zfhmin, PRIV_VERSION_1_11_0, ext_zfhmin),
ISA_EXT_DATA_ENTRY(zfinx, PRIV_VERSION_1_12_0, ext_zfinx),
ISA_EXT_DATA_ENTRY(zdinx, PRIV_VERSION_1_12_0, ext_zdinx),
ISA_EXT_DATA_ENTRY(zca, PRIV_VERSION_1_12_0, ext_zca),
ISA_EXT_DATA_ENTRY(zcb, PRIV_VERSION_1_12_0, ext_zcb),
ISA_EXT_DATA_ENTRY(zcf, PRIV_VERSION_1_12_0, ext_zcf),
ISA_EXT_DATA_ENTRY(zcd, PRIV_VERSION_1_12_0, ext_zcd),
ISA_EXT_DATA_ENTRY(zce, PRIV_VERSION_1_12_0, ext_zce),
ISA_EXT_DATA_ENTRY(zcmp, PRIV_VERSION_1_12_0, ext_zcmp),
ISA_EXT_DATA_ENTRY(zcmt, PRIV_VERSION_1_12_0, ext_zcmt),
ISA_EXT_DATA_ENTRY(zba, PRIV_VERSION_1_12_0, ext_zba),
ISA_EXT_DATA_ENTRY(zbb, PRIV_VERSION_1_12_0, ext_zbb),
ISA_EXT_DATA_ENTRY(zbc, PRIV_VERSION_1_12_0, ext_zbc),
ISA_EXT_DATA_ENTRY(zbkb, PRIV_VERSION_1_12_0, ext_zbkb),
ISA_EXT_DATA_ENTRY(zbkc, PRIV_VERSION_1_12_0, ext_zbkc),
ISA_EXT_DATA_ENTRY(zbkx, PRIV_VERSION_1_12_0, ext_zbkx),
ISA_EXT_DATA_ENTRY(zbs, PRIV_VERSION_1_12_0, ext_zbs),
ISA_EXT_DATA_ENTRY(zk, PRIV_VERSION_1_12_0, ext_zk),
ISA_EXT_DATA_ENTRY(zkn, PRIV_VERSION_1_12_0, ext_zkn),
ISA_EXT_DATA_ENTRY(zknd, PRIV_VERSION_1_12_0, ext_zknd),
ISA_EXT_DATA_ENTRY(zkne, PRIV_VERSION_1_12_0, ext_zkne),
ISA_EXT_DATA_ENTRY(zknh, PRIV_VERSION_1_12_0, ext_zknh),
ISA_EXT_DATA_ENTRY(zkr, PRIV_VERSION_1_12_0, ext_zkr),
ISA_EXT_DATA_ENTRY(zks, PRIV_VERSION_1_12_0, ext_zks),
ISA_EXT_DATA_ENTRY(zksed, PRIV_VERSION_1_12_0, ext_zksed),
ISA_EXT_DATA_ENTRY(zksh, PRIV_VERSION_1_12_0, ext_zksh),
ISA_EXT_DATA_ENTRY(zkt, PRIV_VERSION_1_12_0, ext_zkt),
ISA_EXT_DATA_ENTRY(zve32f, PRIV_VERSION_1_10_0, ext_zve32f),
ISA_EXT_DATA_ENTRY(zve64f, PRIV_VERSION_1_10_0, ext_zve64f),
ISA_EXT_DATA_ENTRY(zve64d, PRIV_VERSION_1_10_0, ext_zve64d),
ISA_EXT_DATA_ENTRY(zvfh, PRIV_VERSION_1_12_0, ext_zvfh),
ISA_EXT_DATA_ENTRY(zvfhmin, PRIV_VERSION_1_12_0, ext_zvfhmin),
ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx),
ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin),
ISA_EXT_DATA_ENTRY(smaia, PRIV_VERSION_1_12_0, ext_smaia),
ISA_EXT_DATA_ENTRY(ssaia, PRIV_VERSION_1_12_0, ext_ssaia),
ISA_EXT_DATA_ENTRY(sscofpmf, PRIV_VERSION_1_12_0, ext_sscofpmf),
ISA_EXT_DATA_ENTRY(sstc, PRIV_VERSION_1_12_0, ext_sstc),
ISA_EXT_DATA_ENTRY(svadu, PRIV_VERSION_1_12_0, ext_svadu),
ISA_EXT_DATA_ENTRY(svinval, PRIV_VERSION_1_12_0, ext_svinval),
ISA_EXT_DATA_ENTRY(svnapot, PRIV_VERSION_1_12_0, ext_svnapot),
ISA_EXT_DATA_ENTRY(svpbmt, PRIV_VERSION_1_12_0, ext_svpbmt),
ISA_EXT_DATA_ENTRY(xtheadba, PRIV_VERSION_1_11_0, ext_xtheadba),
ISA_EXT_DATA_ENTRY(xtheadbb, PRIV_VERSION_1_11_0, ext_xtheadbb),
ISA_EXT_DATA_ENTRY(xtheadbs, PRIV_VERSION_1_11_0, ext_xtheadbs),
ISA_EXT_DATA_ENTRY(xtheadcmo, PRIV_VERSION_1_11_0, ext_xtheadcmo),
ISA_EXT_DATA_ENTRY(xtheadcondmov, PRIV_VERSION_1_11_0, ext_xtheadcondmov),
ISA_EXT_DATA_ENTRY(xtheadfmemidx, PRIV_VERSION_1_11_0, ext_xtheadfmemidx),
ISA_EXT_DATA_ENTRY(xtheadfmv, PRIV_VERSION_1_11_0, ext_xtheadfmv),
ISA_EXT_DATA_ENTRY(xtheadmac, PRIV_VERSION_1_11_0, ext_xtheadmac),
ISA_EXT_DATA_ENTRY(xtheadmemidx, PRIV_VERSION_1_11_0, ext_xtheadmemidx),
ISA_EXT_DATA_ENTRY(xtheadmempair, PRIV_VERSION_1_11_0, ext_xtheadmempair),
ISA_EXT_DATA_ENTRY(xtheadsync, PRIV_VERSION_1_11_0, ext_xtheadsync),
ISA_EXT_DATA_ENTRY(xventanacondops, PRIV_VERSION_1_12_0, ext_XVentanaCondOps),
};
static bool isa_ext_is_enabled(RISCVCPU *cpu,
const struct isa_ext_data *edata)
{
bool *ext_enabled = (void *)&cpu->cfg + edata->ext_enable_offset;
return *ext_enabled;
}
static void isa_ext_update_enabled(RISCVCPU *cpu,
const struct isa_ext_data *edata, bool en)
{
bool *ext_enabled = (void *)&cpu->cfg + edata->ext_enable_offset;
*ext_enabled = en;
}
const char * const riscv_int_regnames[] = {
"x0/zero", "x1/ra", "x2/sp", "x3/gp", "x4/tp", "x5/t0", "x6/t1",
"x7/t2", "x8/s0", "x9/s1", "x10/a0", "x11/a1", "x12/a2", "x13/a3",
"x14/a4", "x15/a5", "x16/a6", "x17/a7", "x18/s2", "x19/s3", "x20/s4",
"x21/s5", "x22/s6", "x23/s7", "x24/s8", "x25/s9", "x26/s10", "x27/s11",
"x28/t3", "x29/t4", "x30/t5", "x31/t6"
};
const char * const riscv_int_regnamesh[] = {
"x0h/zeroh", "x1h/rah", "x2h/sph", "x3h/gph", "x4h/tph", "x5h/t0h",
"x6h/t1h", "x7h/t2h", "x8h/s0h", "x9h/s1h", "x10h/a0h", "x11h/a1h",
"x12h/a2h", "x13h/a3h", "x14h/a4h", "x15h/a5h", "x16h/a6h", "x17h/a7h",
"x18h/s2h", "x19h/s3h", "x20h/s4h", "x21h/s5h", "x22h/s6h", "x23h/s7h",
"x24h/s8h", "x25h/s9h", "x26h/s10h", "x27h/s11h", "x28h/t3h", "x29h/t4h",
"x30h/t5h", "x31h/t6h"
};
const char * const riscv_fpr_regnames[] = {
"f0/ft0", "f1/ft1", "f2/ft2", "f3/ft3", "f4/ft4", "f5/ft5",
"f6/ft6", "f7/ft7", "f8/fs0", "f9/fs1", "f10/fa0", "f11/fa1",
"f12/fa2", "f13/fa3", "f14/fa4", "f15/fa5", "f16/fa6", "f17/fa7",
"f18/fs2", "f19/fs3", "f20/fs4", "f21/fs5", "f22/fs6", "f23/fs7",
"f24/fs8", "f25/fs9", "f26/fs10", "f27/fs11", "f28/ft8", "f29/ft9",
"f30/ft10", "f31/ft11"
};
static const char * const riscv_excp_names[] = {
"misaligned_fetch",
"fault_fetch",
"illegal_instruction",
"breakpoint",
"misaligned_load",
"fault_load",
"misaligned_store",
"fault_store",
"user_ecall",
"supervisor_ecall",
"hypervisor_ecall",
"machine_ecall",
"exec_page_fault",
"load_page_fault",
"reserved",
"store_page_fault",
"reserved",
"reserved",
"reserved",
"reserved",
"guest_exec_page_fault",
"guest_load_page_fault",
"reserved",
"guest_store_page_fault",
};
static const char * const riscv_intr_names[] = {
"u_software",
"s_software",
"vs_software",
"m_software",
"u_timer",
"s_timer",
"vs_timer",
"m_timer",
"u_external",
"s_external",
"vs_external",
"m_external",
"reserved",
"reserved",
"reserved",
"reserved"
};
static void register_cpu_props(Object *obj);
const char *riscv_cpu_get_trap_name(target_ulong cause, bool async)
{
if (async) {
return (cause < ARRAY_SIZE(riscv_intr_names)) ?
riscv_intr_names[cause] : "(unknown)";
} else {
return (cause < ARRAY_SIZE(riscv_excp_names)) ?
riscv_excp_names[cause] : "(unknown)";
}
}
static void set_misa(CPURISCVState *env, RISCVMXL mxl, uint32_t ext)
{
env->misa_mxl_max = env->misa_mxl = mxl;
env->misa_ext_mask = env->misa_ext = ext;
}
static void set_priv_version(CPURISCVState *env, int priv_ver)
{
env->priv_ver = priv_ver;
}
static void set_vext_version(CPURISCVState *env, int vext_ver)
{
env->vext_ver = vext_ver;
}
#ifndef CONFIG_USER_ONLY
static uint8_t satp_mode_from_str(const char *satp_mode_str)
{
if (!strncmp(satp_mode_str, "mbare", 5)) {
return VM_1_10_MBARE;
}
if (!strncmp(satp_mode_str, "sv32", 4)) {
return VM_1_10_SV32;
}
if (!strncmp(satp_mode_str, "sv39", 4)) {
return VM_1_10_SV39;
}
if (!strncmp(satp_mode_str, "sv48", 4)) {
return VM_1_10_SV48;
}
if (!strncmp(satp_mode_str, "sv57", 4)) {
return VM_1_10_SV57;
}
if (!strncmp(satp_mode_str, "sv64", 4)) {
return VM_1_10_SV64;
}
g_assert_not_reached();
}
uint8_t satp_mode_max_from_map(uint32_t map)
{
/* map here has at least one bit set, so no problem with clz */
return 31 - __builtin_clz(map);
}
const char *satp_mode_str(uint8_t satp_mode, bool is_32_bit)
{
if (is_32_bit) {
switch (satp_mode) {
case VM_1_10_SV32:
return "sv32";
case VM_1_10_MBARE:
return "none";
}
} else {
switch (satp_mode) {
case VM_1_10_SV64:
return "sv64";
case VM_1_10_SV57:
return "sv57";
case VM_1_10_SV48:
return "sv48";
case VM_1_10_SV39:
return "sv39";
case VM_1_10_MBARE:
return "none";
}
}
g_assert_not_reached();
}
static void set_satp_mode_max_supported(RISCVCPU *cpu,
uint8_t satp_mode)
{
bool rv32 = riscv_cpu_mxl(&cpu->env) == MXL_RV32;
const bool *valid_vm = rv32 ? valid_vm_1_10_32 : valid_vm_1_10_64;
for (int i = 0; i <= satp_mode; ++i) {
if (valid_vm[i]) {
cpu->cfg.satp_mode.supported |= (1 << i);
}
}
}
/* Set the satp mode to the max supported */
static void set_satp_mode_default_map(RISCVCPU *cpu)
{
cpu->cfg.satp_mode.map = cpu->cfg.satp_mode.supported;
}
#endif
static void riscv_any_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
#if defined(TARGET_RISCV32)
set_misa(env, MXL_RV32, RVI | RVM | RVA | RVF | RVD | RVC | RVU);
#elif defined(TARGET_RISCV64)
set_misa(env, MXL_RV64, RVI | RVM | RVA | RVF | RVD | RVC | RVU);
#endif
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(RISCV_CPU(obj),
riscv_cpu_mxl(&RISCV_CPU(obj)->env) == MXL_RV32 ?
VM_1_10_SV32 : VM_1_10_SV57);
#endif
set_priv_version(env, PRIV_VERSION_1_12_0);
register_cpu_props(obj);
}
#if defined(TARGET_RISCV64)
static void rv64_base_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
/* We set this in the realise function */
set_misa(env, MXL_RV64, 0);
register_cpu_props(obj);
/* Set latest version of privileged specification */
set_priv_version(env, PRIV_VERSION_1_12_0);
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV57);
#endif
}
static void rv64_sifive_u_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
set_misa(env, MXL_RV64, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
register_cpu_props(obj);
set_priv_version(env, PRIV_VERSION_1_10_0);
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV39);
#endif
}
static void rv64_sifive_e_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
RISCVCPU *cpu = RISCV_CPU(obj);
set_misa(env, MXL_RV64, RVI | RVM | RVA | RVC | RVU);
register_cpu_props(obj);
set_priv_version(env, PRIV_VERSION_1_10_0);
cpu->cfg.mmu = false;
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
#endif
}
static void rv64_thead_c906_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
RISCVCPU *cpu = RISCV_CPU(obj);
set_misa(env, MXL_RV64, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
set_priv_version(env, PRIV_VERSION_1_11_0);
cpu->cfg.ext_g = true;
cpu->cfg.ext_c = true;
cpu->cfg.ext_u = true;
cpu->cfg.ext_s = true;
cpu->cfg.ext_icsr = true;
cpu->cfg.ext_zfh = true;
cpu->cfg.mmu = true;
cpu->cfg.ext_xtheadba = true;
cpu->cfg.ext_xtheadbb = true;
cpu->cfg.ext_xtheadbs = true;
cpu->cfg.ext_xtheadcmo = true;
cpu->cfg.ext_xtheadcondmov = true;
cpu->cfg.ext_xtheadfmemidx = true;
cpu->cfg.ext_xtheadmac = true;
cpu->cfg.ext_xtheadmemidx = true;
cpu->cfg.ext_xtheadmempair = true;
cpu->cfg.ext_xtheadsync = true;
cpu->cfg.mvendorid = THEAD_VENDOR_ID;
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(cpu, VM_1_10_SV39);
#endif
}
static void rv128_base_cpu_init(Object *obj)
{
if (qemu_tcg_mttcg_enabled()) {
/* Missing 128-bit aligned atomics */
error_report("128-bit RISC-V currently does not work with Multi "
"Threaded TCG. Please use: -accel tcg,thread=single");
exit(EXIT_FAILURE);
}
CPURISCVState *env = &RISCV_CPU(obj)->env;
/* We set this in the realise function */
set_misa(env, MXL_RV128, 0);
register_cpu_props(obj);
/* Set latest version of privileged specification */
set_priv_version(env, PRIV_VERSION_1_12_0);
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV57);
#endif
}
#else
static void rv32_base_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
/* We set this in the realise function */
set_misa(env, MXL_RV32, 0);
register_cpu_props(obj);
/* Set latest version of privileged specification */
set_priv_version(env, PRIV_VERSION_1_12_0);
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV32);
#endif
}
static void rv32_sifive_u_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
set_misa(env, MXL_RV32, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
register_cpu_props(obj);
set_priv_version(env, PRIV_VERSION_1_10_0);
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV32);
#endif
}
static void rv32_sifive_e_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
RISCVCPU *cpu = RISCV_CPU(obj);
set_misa(env, MXL_RV32, RVI | RVM | RVA | RVC | RVU);
register_cpu_props(obj);
set_priv_version(env, PRIV_VERSION_1_10_0);
cpu->cfg.mmu = false;
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
#endif
}
static void rv32_ibex_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
RISCVCPU *cpu = RISCV_CPU(obj);
set_misa(env, MXL_RV32, RVI | RVM | RVC | RVU);
register_cpu_props(obj);
set_priv_version(env, PRIV_VERSION_1_11_0);
cpu->cfg.mmu = false;
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
#endif
cpu->cfg.epmp = true;
}
static void rv32_imafcu_nommu_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
RISCVCPU *cpu = RISCV_CPU(obj);
set_misa(env, MXL_RV32, RVI | RVM | RVA | RVF | RVC | RVU);
register_cpu_props(obj);
set_priv_version(env, PRIV_VERSION_1_10_0);
cpu->cfg.mmu = false;
#ifndef CONFIG_USER_ONLY
set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
#endif
}
#endif
#if defined(CONFIG_KVM)
static void riscv_host_cpu_init(Object *obj)
{
CPURISCVState *env = &RISCV_CPU(obj)->env;
#if defined(TARGET_RISCV32)
set_misa(env, MXL_RV32, 0);
#elif defined(TARGET_RISCV64)
set_misa(env, MXL_RV64, 0);
#endif
register_cpu_props(obj);
}
#endif
static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model)
{
ObjectClass *oc;
char *typename;
char **cpuname;
cpuname = g_strsplit(cpu_model, ",", 1);
typename = g_strdup_printf(RISCV_CPU_TYPE_NAME("%s"), cpuname[0]);
oc = object_class_by_name(typename);
g_strfreev(cpuname);
g_free(typename);
if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU) ||
object_class_is_abstract(oc)) {
return NULL;
}
return oc;
}
static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags)
{
RISCVCPU *cpu = RISCV_CPU(cs);
CPURISCVState *env = &cpu->env;
int i;
#if !defined(CONFIG_USER_ONLY)
if (riscv_has_ext(env, RVH)) {
qemu_fprintf(f, " %s %d\n", "V = ", env->virt_enabled);
}
#endif
qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "pc ", env->pc);
#ifndef CONFIG_USER_ONLY
{
static const int dump_csrs[] = {
CSR_MHARTID,
CSR_MSTATUS,
CSR_MSTATUSH,
/*
* CSR_SSTATUS is intentionally omitted here as its value
* can be figured out by looking at CSR_MSTATUS
*/
CSR_HSTATUS,
CSR_VSSTATUS,
CSR_MIP,
CSR_MIE,
CSR_MIDELEG,
CSR_HIDELEG,
CSR_MEDELEG,
CSR_HEDELEG,
CSR_MTVEC,
CSR_STVEC,
CSR_VSTVEC,
CSR_MEPC,
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);
tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL));
if (xl == MXL_RV32) {
env->pc = (int32_t) tb->pc;
} else {
env->pc = tb->pc;
}
}
static bool riscv_cpu_has_work(CPUState *cs)
{
#ifndef CONFIG_USER_ONLY
RISCVCPU *cpu = RISCV_CPU(cs);
CPURISCVState *env = &cpu->env;
/*
* Definition of the WFI instruction requires it to ignore the privilege
* mode and delegation registers, but respect individual enables
*/
return 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_hold(Object *obj)
{
#ifndef CONFIG_USER_ONLY
uint8_t iprio;
int i, irq, rdzero;
#endif
CPUState *cs = CPU(obj);
RISCVCPU *cpu = RISCV_CPU(cs);
RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu);
CPURISCVState *env = &cpu->env;
if (mcc->parent_phases.hold) {
mcc->parent_phases.hold(obj);
}
#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;
env->menvcfg = (cpu->cfg.ext_svpbmt ? MENVCFG_PBMTE : 0) |
(cpu->cfg.ext_svadu ? MENVCFG_HADE : 0);
env->henvcfg = (cpu->cfg.ext_svpbmt ? HENVCFG_PBMTE : 0) |
(cpu->cfg.ext_svadu ? HENVCFG_HADE : 0);
/* 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 (cpu->cfg.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();
}
}
/*
* Check consistency between chosen extensions while setting
* cpu->cfg accordingly.
*/
static void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
{
CPURISCVState *env = &cpu->env;
/* 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;
env->misa_ext |= RVI | RVM | RVA | RVF | RVD;
env->misa_ext_mask = env->misa_ext;
}
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_zawrs) && !cpu->cfg.ext_a) {
error_setg(errp, "Zawrs extension requires A extension");
return;
}
if (cpu->cfg.ext_zfh) {
cpu->cfg.ext_zfhmin = true;
}
if (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;
}
/* The V vector extension depends on the Zve64d extension */
if (cpu->cfg.ext_v) {
cpu->cfg.ext_zve64d = true;
}
/* The Zve64d extension depends on the Zve64f extension */
if (cpu->cfg.ext_zve64d) {
cpu->cfg.ext_zve64f = true;
}
/* The Zve64f extension depends on the Zve32f extension */
if (cpu->cfg.ext_zve64f) {
cpu->cfg.ext_zve32f = true;
}
if (cpu->cfg.ext_zve64d && !cpu->cfg.ext_d) {
error_setg(errp, "Zve64d/V extensions require D extension");
return;
}
if (cpu->cfg.ext_zve32f && !cpu->cfg.ext_f) {
error_setg(errp, "Zve32f/Zve64f extensions require F extension");
return;
}
if (cpu->cfg.ext_zvfh) {
cpu->cfg.ext_zvfhmin = true;
}
if (cpu->cfg.ext_zvfhmin && !cpu->cfg.ext_zve32f) {
error_setg(errp, "Zvfh/Zvfhmin extensions require Zve32f extension");
return;
}
if (cpu->cfg.ext_zvfh && !cpu->cfg.ext_zfhmin) {
error_setg(errp, "Zvfh extensions requires Zfhmin extension");
return;
}
/* Set the ISA extensions, checks should have happened above */
if (cpu->cfg.ext_zhinx) {
cpu->cfg.ext_zhinxmin = true;
}
if (cpu->cfg.ext_zdinx || 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_zce) {
cpu->cfg.ext_zca = true;
cpu->cfg.ext_zcb = true;
cpu->cfg.ext_zcmp = true;
cpu->cfg.ext_zcmt = true;
if (cpu->cfg.ext_f && env->misa_mxl_max == MXL_RV32) {
cpu->cfg.ext_zcf = true;
}
}
if (cpu->cfg.ext_c) {
cpu->cfg.ext_zca = true;
if (cpu->cfg.ext_f && env->misa_mxl_max == MXL_RV32) {
cpu->cfg.ext_zcf = true;
}
if (cpu->cfg.ext_d) {
cpu->cfg.ext_zcd = true;
}
}
if (env->misa_mxl_max != MXL_RV32 && cpu->cfg.ext_zcf) {
error_setg(errp, "Zcf extension is only relevant to RV32");
return;
}
if (!cpu->cfg.ext_f && cpu->cfg.ext_zcf) {
error_setg(errp, "Zcf extension requires F extension");
return;
}
if (!cpu->cfg.ext_d && cpu->cfg.ext_zcd) {
error_setg(errp, "Zcd extension requires D extension");
return;
}
if ((cpu->cfg.ext_zcf || cpu->cfg.ext_zcd || cpu->cfg.ext_zcb ||
cpu->cfg.ext_zcmp || cpu->cfg.ext_zcmt) && !cpu->cfg.ext_zca) {
error_setg(errp, "Zcf/Zcd/Zcb/Zcmp/Zcmt extensions require Zca "
"extension");
return;
}
if (cpu->cfg.ext_zcd && (cpu->cfg.ext_zcmp || cpu->cfg.ext_zcmt)) {
error_setg(errp, "Zcmp/Zcmt extensions are incompatible with "
"Zcd extension");
return;
}
if (cpu->cfg.ext_zcmt && !cpu->cfg.ext_icsr) {
error_setg(errp, "Zcmt extension requires Zicsr 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_v) {
int vext_version = VEXT_VERSION_1_00_0;
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.elen < 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);
}
}
#ifndef CONFIG_USER_ONLY
static void riscv_cpu_satp_mode_finalize(RISCVCPU *cpu, Error **errp)
{
bool rv32 = riscv_cpu_mxl(&cpu->env) == MXL_RV32;
uint8_t satp_mode_map_max;
uint8_t satp_mode_supported_max =
satp_mode_max_from_map(cpu->cfg.satp_mode.supported);
if (cpu->cfg.satp_mode.map == 0) {
if (cpu->cfg.satp_mode.init == 0) {
/* If unset by the user, we fallback to the default satp mode. */
set_satp_mode_default_map(cpu);
} else {
/*
* Find the lowest level that was disabled and then enable the
* first valid level below which can be found in
* valid_vm_1_10_32/64.
*/
for (int i = 1; i < 16; ++i) {
if ((cpu->cfg.satp_mode.init & (1 << i)) &&
(cpu->cfg.satp_mode.supported & (1 << i))) {
for (int j = i - 1; j >= 0; --j) {
if (cpu->cfg.satp_mode.supported & (1 << j)) {
cpu->cfg.satp_mode.map |= (1 << j);
break;
}
}
break;
}
}
}
}
satp_mode_map_max = satp_mode_max_from_map(cpu->cfg.satp_mode.map);
/* Make sure the user asked for a supported configuration (HW and qemu) */
if (satp_mode_map_max > satp_mode_supported_max) {
error_setg(errp, "satp_mode %s is higher than hw max capability %s",
satp_mode_str(satp_mode_map_max, rv32),
satp_mode_str(satp_mode_supported_max, rv32));
return;
}
/*
* Make sure the user did not ask for an invalid configuration as per
* the specification.
*/
if (!rv32) {
for (int i = satp_mode_map_max - 1; i >= 0; --i) {
if (!(cpu->cfg.satp_mode.map & (1 << i)) &&
(cpu->cfg.satp_mode.init & (1 << i)) &&
(cpu->cfg.satp_mode.supported & (1 << i))) {
error_setg(errp, "cannot disable %s satp mode if %s "
"is enabled", satp_mode_str(i, false),
satp_mode_str(satp_mode_map_max, false));
return;
}
}
}
/* Finally expand the map so that all valid modes are set */
for (int i = satp_mode_map_max - 1; i >= 0; --i) {
if (cpu->cfg.satp_mode.supported & (1 << i)) {
cpu->cfg.satp_mode.map |= (1 << i);
}
}
}
#endif
static void riscv_cpu_finalize_features(RISCVCPU *cpu, Error **errp)
{
#ifndef CONFIG_USER_ONLY
Error *local_err = NULL;
riscv_cpu_satp_mode_finalize(cpu, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
return;
}
#endif
}
static void riscv_cpu_sync_misa_cfg(CPURISCVState *env)
{
uint32_t ext = 0;
if (riscv_cpu_cfg(env)->ext_i) {
ext |= RVI;
}
if (riscv_cpu_cfg(env)->ext_e) {
ext |= RVE;
}
if (riscv_cpu_cfg(env)->ext_m) {
ext |= RVM;
}
if (riscv_cpu_cfg(env)->ext_a) {
ext |= RVA;
}
if (riscv_cpu_cfg(env)->ext_f) {
ext |= RVF;
}
if (riscv_cpu_cfg(env)->ext_d) {
ext |= RVD;
}
if (riscv_cpu_cfg(env)->ext_c) {
ext |= RVC;
}
if (riscv_cpu_cfg(env)->ext_s) {
ext |= RVS;
}
if (riscv_cpu_cfg(env)->ext_u) {
ext |= RVU;
}
if (riscv_cpu_cfg(env)->ext_h) {
ext |= RVH;
}
if (riscv_cpu_cfg(env)->ext_v) {
ext |= RVV;
}
if (riscv_cpu_cfg(env)->ext_j) {
ext |= RVJ;
}
env->misa_ext = env->misa_ext_mask = ext;
}
static void riscv_cpu_validate_misa_priv(CPURISCVState *env, Error **errp)
{
if (riscv_has_ext(env, RVH) && env->priv_ver < PRIV_VERSION_1_12_0) {
error_setg(errp, "H extension requires priv spec 1.12.0");
return;
}
}
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);
}
/*
* We can't be sure of whether we set defaults during cpu_init()
* or whether the user enabled/disabled some bits via cpu->cfg
* flags. Sync env->misa_ext with cpu->cfg now to allow us to
* use just env->misa_ext later.
*/
riscv_cpu_sync_misa_cfg(env);
riscv_cpu_validate_misa_priv(env, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
return;
}
/* 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" TARGET_FMT_lx
" because privilege spec version does not match",
isa_edata_arr[i].name, env->mhartid);
#else
warn_report("disabling %s extension because "
"privilege spec version does not match",
isa_edata_arr[i].name);
#endif
}
}
if (cpu->cfg.epmp && !cpu->cfg.pmp) {
/*
* Enhanced PMP should only be available
* on harts with PMP support
*/
error_setg(errp, "Invalid configuration: EPMP requires PMP support");
return;
}
#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);
riscv_cpu_validate_set_extensions(cpu, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
return;
}
#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_finalize_features(cpu, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
return;
}
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 cpu_riscv_get_satp(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
RISCVSATPMap *satp_map = opaque;
uint8_t satp = satp_mode_from_str(name);
bool value;
value = satp_map->map & (1 << satp);
visit_type_bool(v, name, &value, errp);
}
static void cpu_riscv_set_satp(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
RISCVSATPMap *satp_map = opaque;
uint8_t satp = satp_mode_from_str(name);
bool value;
if (!visit_type_bool(v, name, &value, errp)) {
return;
}
satp_map->map = deposit32(satp_map->map, satp, 1, value);
satp_map->init |= 1 << satp;
}
static void riscv_add_satp_mode_properties(Object *obj)
{
RISCVCPU *cpu = RISCV_CPU(obj);
if (cpu->env.misa_mxl == MXL_RV32) {
object_property_add(obj, "sv32", "bool", cpu_riscv_get_satp,
cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
} else {
object_property_add(obj, "sv39", "bool", cpu_riscv_get_satp,
cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
object_property_add(obj, "sv48", "bool", cpu_riscv_get_satp,
cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
object_property_add(obj, "sv57", "bool", cpu_riscv_get_satp,
cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
object_property_add(obj, "sv64", "bool", cpu_riscv_get_satp,
cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
}
}
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(env, 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(env, 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(env, 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 */
}
typedef struct RISCVCPUMisaExtConfig {
const char *name;
const char *description;
target_ulong misa_bit;
bool enabled;
} RISCVCPUMisaExtConfig;
static void cpu_set_misa_ext_cfg(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
const RISCVCPUMisaExtConfig *misa_ext_cfg = opaque;
target_ulong misa_bit = misa_ext_cfg->misa_bit;
RISCVCPU *cpu = RISCV_CPU(obj);
CPURISCVState *env = &cpu->env;
bool value;
if (!visit_type_bool(v, name, &value, errp)) {
return;
}
if (value) {
env->misa_ext |= misa_bit;
env->misa_ext_mask |= misa_bit;
} else {
env->misa_ext &= ~misa_bit;
env->misa_ext_mask &= ~misa_bit;
}
}
static void cpu_get_misa_ext_cfg(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
const RISCVCPUMisaExtConfig *misa_ext_cfg = opaque;
target_ulong misa_bit = misa_ext_cfg->misa_bit;
RISCVCPU *cpu = RISCV_CPU(obj);
CPURISCVState *env = &cpu->env;
bool value;
value = env->misa_ext & misa_bit;
visit_type_bool(v, name, &value, errp);
}
static const RISCVCPUMisaExtConfig misa_ext_cfgs[] = {};
static void riscv_cpu_add_misa_properties(Object *cpu_obj)
{
int i;
for (i = 0; i < ARRAY_SIZE(misa_ext_cfgs); i++) {
const RISCVCPUMisaExtConfig *misa_cfg = &misa_ext_cfgs[i];
object_property_add(cpu_obj, misa_cfg->name, "bool",
cpu_get_misa_ext_cfg,
cpu_set_misa_ext_cfg,
NULL, (void *)misa_cfg);
object_property_set_description(cpu_obj, misa_cfg->name,
misa_cfg->description);
object_property_set_bool(cpu_obj, misa_cfg->name,
misa_cfg->enabled, NULL);
}
}
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("Zawrs", RISCVCPU, cfg.ext_zawrs, 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("Zve64d", RISCVCPU, cfg.ext_zve64d, 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("svadu", RISCVCPU, cfg.ext_svadu, true),
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("zicbom", RISCVCPU, cfg.ext_icbom, true),
DEFINE_PROP_UINT16("cbom_blocksize", RISCVCPU, cfg.cbom_blocksize, 64),
DEFINE_PROP_BOOL("zicboz", RISCVCPU, cfg.ext_icboz, true),
DEFINE_PROP_UINT16("cboz_blocksize", RISCVCPU, cfg.cboz_blocksize, 64),
DEFINE_PROP_BOOL("zmmul", RISCVCPU, cfg.ext_zmmul, false),
/* Vendor-specific custom extensions */
DEFINE_PROP_BOOL("xtheadba", RISCVCPU, cfg.ext_xtheadba, false),
DEFINE_PROP_BOOL("xtheadbb", RISCVCPU, cfg.ext_xtheadbb, false),
DEFINE_PROP_BOOL("xtheadbs", RISCVCPU, cfg.ext_xtheadbs, false),
DEFINE_PROP_BOOL("xtheadcmo", RISCVCPU, cfg.ext_xtheadcmo, false),
DEFINE_PROP_BOOL("xtheadcondmov", RISCVCPU, cfg.ext_xtheadcondmov, false),
DEFINE_PROP_BOOL("xtheadfmemidx", RISCVCPU, cfg.ext_xtheadfmemidx, false),
DEFINE_PROP_BOOL("xtheadfmv", RISCVCPU, cfg.ext_xtheadfmv, false),
DEFINE_PROP_BOOL("xtheadmac", RISCVCPU, cfg.ext_xtheadmac, false),
DEFINE_PROP_BOOL("xtheadmemidx", RISCVCPU, cfg.ext_xtheadmemidx, false),
DEFINE_PROP_BOOL("xtheadmempair", RISCVCPU, cfg.ext_xtheadmempair, false),
DEFINE_PROP_BOOL("xtheadsync", RISCVCPU, cfg.ext_xtheadsync, false),
DEFINE_PROP_BOOL("xventanacondops", RISCVCPU, cfg.ext_XVentanaCondOps, false),
/* These are experimental so mark with 'x-' */
DEFINE_PROP_BOOL("x-zicond", RISCVCPU, cfg.ext_zicond, false),
DEFINE_PROP_BOOL("x-j", RISCVCPU, cfg.ext_j, false),
DEFINE_PROP_BOOL("x-zca", RISCVCPU, cfg.ext_zca, false),
DEFINE_PROP_BOOL("x-zcb", RISCVCPU, cfg.ext_zcb, false),
DEFINE_PROP_BOOL("x-zcd", RISCVCPU, cfg.ext_zcd, false),
DEFINE_PROP_BOOL("x-zce", RISCVCPU, cfg.ext_zce, false),
DEFINE_PROP_BOOL("x-zcf", RISCVCPU, cfg.ext_zcf, false),
DEFINE_PROP_BOOL("x-zcmp", RISCVCPU, cfg.ext_zcmp, false),
DEFINE_PROP_BOOL("x-zcmt", RISCVCPU, cfg.ext_zcmt, 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_BOOL("x-zvfh", RISCVCPU, cfg.ext_zvfh, false),
DEFINE_PROP_BOOL("x-zvfhmin", RISCVCPU, cfg.ext_zvfhmin, false),
DEFINE_PROP_END_OF_LIST(),
};
/*
* Register CPU props based on env.misa_ext. If a non-zero
* value was set, register only the required cpu->cfg.ext_*
* properties and leave. env.misa_ext = 0 means that we want
* all the default properties to be registered.
*/
static void register_cpu_props(Object *obj)
{
RISCVCPU *cpu = RISCV_CPU(obj);
uint32_t misa_ext = cpu->env.misa_ext;
Property *prop;
DeviceState *dev = DEVICE(obj);
/*
* If misa_ext is not zero, set cfg properties now to
* allow them to be read during riscv_cpu_realize()
* later on.
*/
if (cpu->env.misa_ext != 0) {
cpu->cfg.ext_i = misa_ext & RVI;
cpu->cfg.ext_e = misa_ext & RVE;
cpu->cfg.ext_m = misa_ext & RVM;
cpu->cfg.ext_a = misa_ext & RVA;
cpu->cfg.ext_f = misa_ext & RVF;
cpu->cfg.ext_d = misa_ext & RVD;
cpu->cfg.ext_v = misa_ext & RVV;
cpu->cfg.ext_c = misa_ext & RVC;
cpu->cfg.ext_s = misa_ext & RVS;
cpu->cfg.ext_u = misa_ext & RVU;
cpu->cfg.ext_h = misa_ext & RVH;
cpu->cfg.ext_j = misa_ext & RVJ;
/*
* We don't want to set the default riscv_cpu_extensions
* in this case.
*/
return;
}
riscv_cpu_add_misa_properties(obj);
for (prop = riscv_cpu_extensions; prop && prop->name; prop++) {
qdev_property_add_static(dev, prop);
}
#ifndef CONFIG_USER_ONLY
riscv_add_satp_mode_properties(obj);
#endif
}
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),
/*
* write_misa() is marked as experimental for now so mark
* it with -x and default to 'false'.
*/
DEFINE_PROP_BOOL("x-misa-w", RISCVCPU, cfg.misa_w, 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
static int64_t riscv_get_arch_id(CPUState *cs)
{
RISCVCPU *cpu = RISCV_CPU(cs);
return cpu->env.mhartid;
}
#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);
ResettableClass *rc = RESETTABLE_CLASS(c);
device_class_set_parent_realize(dc, riscv_cpu_realize,
&mcc->parent_realize);
resettable_class_set_parent_phases(rc, NULL, riscv_cpu_reset_hold, NULL,
&mcc->parent_phases);
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;
cc->get_arch_id = riscv_get_arch_id;
#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_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_THEAD_C906, rv64_thead_c906_cpu_init),
DEFINE_CPU(TYPE_RISCV_CPU_BASE128, rv128_base_cpu_init),
#endif
};
DEFINE_TYPES(riscv_cpu_type_infos)
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