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qemu/target/riscv/machine.c

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target/riscv: Add basic vmstate description of CPU Add basic CPU state description to the newly created machine.c Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-3-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:26 +03:00
/*
* RISC-V VMState Description
*
* Copyright (c) 2020 Huawei Technologies Co., Ltd
*
* 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 "cpu.h"
#include "qemu/error-report.h"
#include "sysemu/kvm.h"
#include "migration/cpu.h"
target/riscv: Add PMP state description In the case of supporting PMP feature, add PMP state description to vmstate_riscv_cpu. 'vmstate_pmp_addr' and 'num_rules' could be regenerated by pmp_update_rule(). But there exists the problem of updating num_rules repeatedly in pmp_update_rule(). So here extracts pmp_update_rule_addr() and pmp_update_rule_nums() to update 'vmstate_pmp_addr' and 'num_rules' respectively. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-4-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:27 +03:00
static bool pmp_needed(void *opaque)
{
RISCVCPU *cpu = opaque;
CPURISCVState *env = &cpu->env;
return riscv_feature(env, RISCV_FEATURE_PMP);
}
static int pmp_post_load(void *opaque, int version_id)
{
RISCVCPU *cpu = opaque;
CPURISCVState *env = &cpu->env;
int i;
for (i = 0; i < MAX_RISCV_PMPS; i++) {
pmp_update_rule_addr(env, i);
}
pmp_update_rule_nums(env);
return 0;
}
static const VMStateDescription vmstate_pmp_entry = {
.name = "cpu/pmp/entry",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINTTL(addr_reg, pmp_entry_t),
VMSTATE_UINT8(cfg_reg, pmp_entry_t),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_pmp = {
.name = "cpu/pmp",
.version_id = 1,
.minimum_version_id = 1,
.needed = pmp_needed,
.post_load = pmp_post_load,
.fields = (VMStateField[]) {
VMSTATE_STRUCT_ARRAY(env.pmp_state.pmp, RISCVCPU, MAX_RISCV_PMPS,
0, vmstate_pmp_entry, pmp_entry_t),
VMSTATE_END_OF_LIST()
}
};
target/riscv: Add H extension state description In the case of supporting H extension, add H extension description to vmstate_riscv_cpu. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-5-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:28 +03:00
static bool hyper_needed(void *opaque)
{
RISCVCPU *cpu = opaque;
CPURISCVState *env = &cpu->env;
return riscv_has_ext(env, RVH);
}
target/riscv: machine: Sort the .subsections Move the codes around so that the order of .subsections matches the one they are referenced in vmstate_riscv_cpu. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211030030606.32297-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-30 06:06:06 +03:00
static const VMStateDescription vmstate_hyper = {
.name = "cpu/hyper",
target/riscv: Implement hgeie and hgeip CSRs The hgeie and hgeip CSRs are required for emulating an external interrupt controller capable of injecting virtual external interrupt to Guest/VM running at VS-level. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Message-id: 20220204174700.534953-4-anup@brainfault.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-02-04 20:46:39 +03:00
.version_id = 2,
.minimum_version_id = 2,
target/riscv: machine: Sort the .subsections Move the codes around so that the order of .subsections matches the one they are referenced in vmstate_riscv_cpu. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211030030606.32297-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-30 06:06:06 +03:00
.needed = hyper_needed,
.fields = (VMStateField[]) {
VMSTATE_UINTTL(env.hstatus, RISCVCPU),
VMSTATE_UINTTL(env.hedeleg, RISCVCPU),
target/riscv: Implement AIA CSRs for 64 local interrupts on RV32 The AIA specification adds new CSRs for RV32 so that RISC-V hart can support 64 local interrupts on both RV32 and RV64. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Message-id: 20220204174700.534953-11-anup@brainfault.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-02-04 20:46:46 +03:00
VMSTATE_UINT64(env.hideleg, RISCVCPU),
target/riscv: machine: Sort the .subsections Move the codes around so that the order of .subsections matches the one they are referenced in vmstate_riscv_cpu. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211030030606.32297-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-30 06:06:06 +03:00
VMSTATE_UINTTL(env.hcounteren, RISCVCPU),
VMSTATE_UINTTL(env.htval, RISCVCPU),
VMSTATE_UINTTL(env.htinst, RISCVCPU),
VMSTATE_UINTTL(env.hgatp, RISCVCPU),
target/riscv: Implement hgeie and hgeip CSRs The hgeie and hgeip CSRs are required for emulating an external interrupt controller capable of injecting virtual external interrupt to Guest/VM running at VS-level. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Message-id: 20220204174700.534953-4-anup@brainfault.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-02-04 20:46:39 +03:00
VMSTATE_UINTTL(env.hgeie, RISCVCPU),
VMSTATE_UINTTL(env.hgeip, RISCVCPU),
target/riscv: machine: Sort the .subsections Move the codes around so that the order of .subsections matches the one they are referenced in vmstate_riscv_cpu. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211030030606.32297-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-30 06:06:06 +03:00
VMSTATE_UINT64(env.htimedelta, RISCVCPU),
target/riscv: Implement AIA hvictl and hviprioX CSRs The AIA hvictl and hviprioX CSRs allow hypervisor to control interrupts visible at VS-level. This patch implements AIA hvictl and hviprioX CSRs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Message-id: 20220204174700.534953-12-anup@brainfault.org [ Changes by AF: - Fix possible unintilised variable error in rmw_sie() ] Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-02-04 20:46:47 +03:00
VMSTATE_UINTTL(env.hvictl, RISCVCPU),
target/riscv: Implement AIA local interrupt priorities The AIA spec defines programmable 8-bit priority for each local interrupt at M-level, S-level and VS-level so we extend local interrupt processing to consider AIA interrupt priorities. The AIA CSRs which help software configure local interrupt priorities will be added by subsequent patches. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220204174700.534953-10-anup@brainfault.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-02-04 20:46:45 +03:00
VMSTATE_UINT8_ARRAY(env.hviprio, RISCVCPU, 64),
target/riscv: Add V extension state description In the case of supporting V extension, add V extension description to vmstate_riscv_cpu. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-6-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:29 +03:00
target/riscv: machine: Sort the .subsections Move the codes around so that the order of .subsections matches the one they are referenced in vmstate_riscv_cpu. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211030030606.32297-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-30 06:06:06 +03:00
VMSTATE_UINT64(env.vsstatus, RISCVCPU),
VMSTATE_UINTTL(env.vstvec, RISCVCPU),
VMSTATE_UINTTL(env.vsscratch, RISCVCPU),
VMSTATE_UINTTL(env.vsepc, RISCVCPU),
VMSTATE_UINTTL(env.vscause, RISCVCPU),
VMSTATE_UINTTL(env.vstval, RISCVCPU),
VMSTATE_UINTTL(env.vsatp, RISCVCPU),
target/riscv: Add V extension state description In the case of supporting V extension, add V extension description to vmstate_riscv_cpu. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-6-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:29 +03:00
target/riscv: machine: Sort the .subsections Move the codes around so that the order of .subsections matches the one they are referenced in vmstate_riscv_cpu. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211030030606.32297-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-30 06:06:06 +03:00
VMSTATE_UINTTL(env.mtval2, RISCVCPU),
VMSTATE_UINTTL(env.mtinst, RISCVCPU),
VMSTATE_UINTTL(env.stvec_hs, RISCVCPU),
VMSTATE_UINTTL(env.sscratch_hs, RISCVCPU),
VMSTATE_UINTTL(env.sepc_hs, RISCVCPU),
VMSTATE_UINTTL(env.scause_hs, RISCVCPU),
VMSTATE_UINTTL(env.stval_hs, RISCVCPU),
VMSTATE_UINTTL(env.satp_hs, RISCVCPU),
VMSTATE_UINT64(env.mstatus_hs, RISCVCPU),
VMSTATE_END_OF_LIST()
}
};
static bool vector_needed(void *opaque)
target/riscv: Add J extension state description Signed-off-by: Alexey Baturo <space.monkey.delivers@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211025173609.2724490-5-space.monkey.delivers@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-25 20:36:05 +03:00
{
RISCVCPU *cpu = opaque;
CPURISCVState *env = &cpu->env;
target/riscv: machine: Sort the .subsections Move the codes around so that the order of .subsections matches the one they are referenced in vmstate_riscv_cpu. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211030030606.32297-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-30 06:06:06 +03:00
return riscv_has_ext(env, RVV);
target/riscv: Add J extension state description Signed-off-by: Alexey Baturo <space.monkey.delivers@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211025173609.2724490-5-space.monkey.delivers@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-25 20:36:05 +03:00
}
target/riscv: Add V extension state description In the case of supporting V extension, add V extension description to vmstate_riscv_cpu. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-6-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:29 +03:00
static const VMStateDescription vmstate_vector = {
.name = "cpu/vector",
target/riscv: Split out the vill from vtype We need not specially process vtype when XLEN changes. Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220120122050.41546-16-zhiwei_liu@c-sky.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-20 15:20:42 +03:00
.version_id = 2,
.minimum_version_id = 2,
target/riscv: Add V extension state description In the case of supporting V extension, add V extension description to vmstate_riscv_cpu. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-6-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:29 +03:00
.needed = vector_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64_ARRAY(env.vreg, RISCVCPU, 32 * RV_VLEN_MAX / 64),
VMSTATE_UINTTL(env.vxrm, RISCVCPU),
VMSTATE_UINTTL(env.vxsat, RISCVCPU),
VMSTATE_UINTTL(env.vl, RISCVCPU),
VMSTATE_UINTTL(env.vstart, RISCVCPU),
VMSTATE_UINTTL(env.vtype, RISCVCPU),
target/riscv: Split out the vill from vtype We need not specially process vtype when XLEN changes. Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220120122050.41546-16-zhiwei_liu@c-sky.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-20 15:20:42 +03:00
VMSTATE_BOOL(env.vill, RISCVCPU),
target/riscv: Add V extension state description In the case of supporting V extension, add V extension description to vmstate_riscv_cpu. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-6-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:29 +03:00
VMSTATE_END_OF_LIST()
}
};
target/riscv: machine: Sort the .subsections Move the codes around so that the order of .subsections matches the one they are referenced in vmstate_riscv_cpu. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211030030606.32297-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-30 06:06:06 +03:00
static bool pointermasking_needed(void *opaque)
{
RISCVCPU *cpu = opaque;
CPURISCVState *env = &cpu->env;
return riscv_has_ext(env, RVJ);
}
target/riscv: Add J extension state description Signed-off-by: Alexey Baturo <space.monkey.delivers@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211025173609.2724490-5-space.monkey.delivers@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-25 20:36:05 +03:00
static const VMStateDescription vmstate_pointermasking = {
.name = "cpu/pointer_masking",
.version_id = 1,
.minimum_version_id = 1,
.needed = pointermasking_needed,
.fields = (VMStateField[]) {
VMSTATE_UINTTL(env.mmte, RISCVCPU),
VMSTATE_UINTTL(env.mpmmask, RISCVCPU),
VMSTATE_UINTTL(env.mpmbase, RISCVCPU),
VMSTATE_UINTTL(env.spmmask, RISCVCPU),
VMSTATE_UINTTL(env.spmbase, RISCVCPU),
VMSTATE_UINTTL(env.upmmask, RISCVCPU),
VMSTATE_UINTTL(env.upmbase, RISCVCPU),
VMSTATE_END_OF_LIST()
}
};
target/riscv: array for the 64 upper bits of 128-bit registers The upper 64-bit of the 128-bit registers have now a place inside the cpu state structure, and are created as globals for future use. Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr> Co-authored-by: Fabien Portas <fabien.portas@grenoble-inp.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220106210108.138226-7-frederic.petrot@univ-grenoble-alpes.fr Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-07 00:00:56 +03:00
static bool rv128_needed(void *opaque)
{
RISCVCPU *cpu = opaque;
CPURISCVState *env = &cpu->env;
return env->misa_mxl_max == MXL_RV128;
}
static const VMStateDescription vmstate_rv128 = {
.name = "cpu/rv128",
.version_id = 1,
.minimum_version_id = 1,
.needed = rv128_needed,
.fields = (VMStateField[]) {
VMSTATE_UINTTL_ARRAY(env.gprh, RISCVCPU, 32),
target/riscv: adding high part of some csrs Adding the high part of a very minimal set of csr. Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr> Co-authored-by: Fabien Portas <fabien.portas@grenoble-inp.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220106210108.138226-16-frederic.petrot@univ-grenoble-alpes.fr Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-07 00:01:05 +03:00
VMSTATE_UINT64(env.mscratchh, RISCVCPU),
VMSTATE_UINT64(env.sscratchh, RISCVCPU),
target/riscv: array for the 64 upper bits of 128-bit registers The upper 64-bit of the 128-bit registers have now a place inside the cpu state structure, and are created as globals for future use. Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr> Co-authored-by: Fabien Portas <fabien.portas@grenoble-inp.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220106210108.138226-7-frederic.petrot@univ-grenoble-alpes.fr Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-07 00:00:56 +03:00
VMSTATE_END_OF_LIST()
}
};
target/riscv: Support virtual time context synchronization Add virtual time context description to vmstate_kvmtimer. After cpu being loaded, virtual time context is updated to KVM. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Mingwang Li <limingwang@huawei.com> Reviewed-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220112081329.1835-13-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-12 11:13:28 +03:00
static bool kvmtimer_needed(void *opaque)
{
return kvm_enabled();
}
static int cpu_post_load(void *opaque, int version_id)
{
RISCVCPU *cpu = opaque;
CPURISCVState *env = &cpu->env;
env->kvm_timer_dirty = true;
return 0;
}
static const VMStateDescription vmstate_kvmtimer = {
.name = "cpu/kvmtimer",
.version_id = 1,
.minimum_version_id = 1,
.needed = kvmtimer_needed,
.post_load = cpu_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.kvm_timer_time, RISCVCPU),
VMSTATE_UINT64(env.kvm_timer_compare, RISCVCPU),
VMSTATE_UINT64(env.kvm_timer_state, RISCVCPU),
VMSTATE_END_OF_LIST()
}
};
target/riscv: Create xl field in env Current xlen has been used in helper functions and many other places. The computation of current xlen is not so trivial, so that we should recompute it as little as possible. Fortunately, xlen only changes in very seldom cases, such as exception, misa write, mstatus write, cpu reset, migration load. So that we can only recompute xlen in this places and cache it into CPURISCVState. Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220120122050.41546-6-zhiwei_liu@c-sky.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-20 15:20:32 +03:00
static int riscv_cpu_post_load(void *opaque, int version_id)
{
RISCVCPU *cpu = opaque;
CPURISCVState *env = &cpu->env;
env->xl = cpu_recompute_xl(env);
target/riscv: Create current pm fields in env Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220120122050.41546-12-zhiwei_liu@c-sky.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-20 15:20:38 +03:00
riscv_cpu_update_mask(env);
target/riscv: Create xl field in env Current xlen has been used in helper functions and many other places. The computation of current xlen is not so trivial, so that we should recompute it as little as possible. Fortunately, xlen only changes in very seldom cases, such as exception, misa write, mstatus write, cpu reset, migration load. So that we can only recompute xlen in this places and cache it into CPURISCVState. Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220120122050.41546-6-zhiwei_liu@c-sky.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-20 15:20:32 +03:00
return 0;
}
target/riscv: Add basic vmstate description of CPU Add basic CPU state description to the newly created machine.c Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-3-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:26 +03:00
const VMStateDescription vmstate_riscv_cpu = {
.name = "cpu",
target/riscv: Split misa.mxl and misa.ext The hw representation of misa.mxl is at the high bits of the misa csr. Representing this in the same way inside QEMU results in overly complex code trying to check that field. Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20211020031709.359469-4-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-20 06:16:57 +03:00
.version_id = 3,
.minimum_version_id = 3,
target/riscv: Create xl field in env Current xlen has been used in helper functions and many other places. The computation of current xlen is not so trivial, so that we should recompute it as little as possible. Fortunately, xlen only changes in very seldom cases, such as exception, misa write, mstatus write, cpu reset, migration load. So that we can only recompute xlen in this places and cache it into CPURISCVState. Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220120122050.41546-6-zhiwei_liu@c-sky.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-20 15:20:32 +03:00
.post_load = riscv_cpu_post_load,
target/riscv: Add basic vmstate description of CPU Add basic CPU state description to the newly created machine.c Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-3-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:26 +03:00
.fields = (VMStateField[]) {
VMSTATE_UINTTL_ARRAY(env.gpr, RISCVCPU, 32),
VMSTATE_UINT64_ARRAY(env.fpr, RISCVCPU, 32),
target/riscv: Implement AIA local interrupt priorities The AIA spec defines programmable 8-bit priority for each local interrupt at M-level, S-level and VS-level so we extend local interrupt processing to consider AIA interrupt priorities. The AIA CSRs which help software configure local interrupt priorities will be added by subsequent patches. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220204174700.534953-10-anup@brainfault.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-02-04 20:46:45 +03:00
VMSTATE_UINT8_ARRAY(env.miprio, RISCVCPU, 64),
VMSTATE_UINT8_ARRAY(env.siprio, RISCVCPU, 64),
target/riscv: Add basic vmstate description of CPU Add basic CPU state description to the newly created machine.c Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-3-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:26 +03:00
VMSTATE_UINTTL(env.pc, RISCVCPU),
VMSTATE_UINTTL(env.load_res, RISCVCPU),
VMSTATE_UINTTL(env.load_val, RISCVCPU),
VMSTATE_UINTTL(env.frm, RISCVCPU),
VMSTATE_UINTTL(env.badaddr, RISCVCPU),
VMSTATE_UINTTL(env.guest_phys_fault_addr, RISCVCPU),
VMSTATE_UINTTL(env.priv_ver, RISCVCPU),
VMSTATE_UINTTL(env.vext_ver, RISCVCPU),
target/riscv: Split misa.mxl and misa.ext The hw representation of misa.mxl is at the high bits of the misa csr. Representing this in the same way inside QEMU results in overly complex code trying to check that field. Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20211020031709.359469-4-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-20 06:16:57 +03:00
VMSTATE_UINT32(env.misa_mxl, RISCVCPU),
VMSTATE_UINT32(env.misa_ext, RISCVCPU),
VMSTATE_UINT32(env.misa_mxl_max, RISCVCPU),
VMSTATE_UINT32(env.misa_ext_mask, RISCVCPU),
target/riscv: Add basic vmstate description of CPU Add basic CPU state description to the newly created machine.c Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-3-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:26 +03:00
VMSTATE_UINT32(env.features, RISCVCPU),
VMSTATE_UINTTL(env.priv, RISCVCPU),
VMSTATE_UINTTL(env.virt, RISCVCPU),
VMSTATE_UINTTL(env.resetvec, RISCVCPU),
VMSTATE_UINTTL(env.mhartid, RISCVCPU),
VMSTATE_UINT64(env.mstatus, RISCVCPU),
target/riscv: Implement AIA CSRs for 64 local interrupts on RV32 The AIA specification adds new CSRs for RV32 so that RISC-V hart can support 64 local interrupts on both RV32 and RV64. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Message-id: 20220204174700.534953-11-anup@brainfault.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-02-04 20:46:46 +03:00
VMSTATE_UINT64(env.mip, RISCVCPU),
VMSTATE_UINT64(env.miclaim, RISCVCPU),
VMSTATE_UINT64(env.mie, RISCVCPU),
VMSTATE_UINT64(env.mideleg, RISCVCPU),
target/riscv: Add basic vmstate description of CPU Add basic CPU state description to the newly created machine.c Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-3-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:26 +03:00
VMSTATE_UINTTL(env.satp, RISCVCPU),
target/riscv: Remove privilege v1.9 specific CSR related code Qemu doesn't support RISC-V privilege specification v1.9. Remove the remaining v1.9 specific references from the implementation. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20210319194534.2082397-2-atish.patra@wdc.com> [Changes by AF: - Rebase on latest patches - Bump the vmstate_riscv_cpu version_id and minimum_version_id ] Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-19 22:45:29 +03:00
VMSTATE_UINTTL(env.stval, RISCVCPU),
target/riscv: Add basic vmstate description of CPU Add basic CPU state description to the newly created machine.c Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-3-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:26 +03:00
VMSTATE_UINTTL(env.medeleg, RISCVCPU),
VMSTATE_UINTTL(env.stvec, RISCVCPU),
VMSTATE_UINTTL(env.sepc, RISCVCPU),
VMSTATE_UINTTL(env.scause, RISCVCPU),
VMSTATE_UINTTL(env.mtvec, RISCVCPU),
VMSTATE_UINTTL(env.mepc, RISCVCPU),
VMSTATE_UINTTL(env.mcause, RISCVCPU),
VMSTATE_UINTTL(env.mtval, RISCVCPU),
VMSTATE_UINTTL(env.scounteren, RISCVCPU),
VMSTATE_UINTTL(env.mcounteren, RISCVCPU),
VMSTATE_UINTTL(env.sscratch, RISCVCPU),
VMSTATE_UINTTL(env.mscratch, RISCVCPU),
VMSTATE_UINT64(env.mfromhost, RISCVCPU),
VMSTATE_UINT64(env.mtohost, RISCVCPU),
VMSTATE_UINT64(env.timecmp, RISCVCPU),
VMSTATE_END_OF_LIST()
target/riscv: Add PMP state description In the case of supporting PMP feature, add PMP state description to vmstate_riscv_cpu. 'vmstate_pmp_addr' and 'num_rules' could be regenerated by pmp_update_rule(). But there exists the problem of updating num_rules repeatedly in pmp_update_rule(). So here extracts pmp_update_rule_addr() and pmp_update_rule_nums() to update 'vmstate_pmp_addr' and 'num_rules' respectively. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-4-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:27 +03:00
},
.subsections = (const VMStateDescription * []) {
&vmstate_pmp,
target/riscv: Add H extension state description In the case of supporting H extension, add H extension description to vmstate_riscv_cpu. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-5-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:28 +03:00
&vmstate_hyper,
target/riscv: Add V extension state description In the case of supporting V extension, add V extension description to vmstate_riscv_cpu. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-6-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:29 +03:00
&vmstate_vector,
target/riscv: Add J extension state description Signed-off-by: Alexey Baturo <space.monkey.delivers@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211025173609.2724490-5-space.monkey.delivers@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-25 20:36:05 +03:00
&vmstate_pointermasking,
target/riscv: array for the 64 upper bits of 128-bit registers The upper 64-bit of the 128-bit registers have now a place inside the cpu state structure, and are created as globals for future use. Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr> Co-authored-by: Fabien Portas <fabien.portas@grenoble-inp.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220106210108.138226-7-frederic.petrot@univ-grenoble-alpes.fr Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-07 00:00:56 +03:00
&vmstate_rv128,
target/riscv: Support virtual time context synchronization Add virtual time context description to vmstate_kvmtimer. After cpu being loaded, virtual time context is updated to KVM. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Mingwang Li <limingwang@huawei.com> Reviewed-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220112081329.1835-13-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-12 11:13:28 +03:00
&vmstate_kvmtimer,
target/riscv: Add PMP state description In the case of supporting PMP feature, add PMP state description to vmstate_riscv_cpu. 'vmstate_pmp_addr' and 'num_rules' could be regenerated by pmp_update_rule(). But there exists the problem of updating num_rules repeatedly in pmp_update_rule(). So here extracts pmp_update_rule_addr() and pmp_update_rule_nums() to update 'vmstate_pmp_addr' and 'num_rules' respectively. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-4-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:27 +03:00
NULL
target/riscv: Add basic vmstate description of CPU Add basic CPU state description to the newly created machine.c Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201026115530.304-3-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-26 14:55:26 +03:00
}
};
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