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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>
This commit is contained in:
Yifei Jiang 2022-01-12 16:13:28 +08:00 committed by Alistair Francis
parent 9ad3e016ae
commit 1eb9a5da31
1 changed files with 30 additions and 0 deletions
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30
target/riscv/machine.c
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@ -185,6 +185,35 @@ static const VMStateDescription vmstate_rv128 = {
}
};
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()
}
};
const VMStateDescription vmstate_riscv_cpu = {
.name = "cpu",
.version_id = 3,
@ -240,6 +269,7 @@ const VMStateDescription vmstate_riscv_cpu = {
&vmstate_vector,
&vmstate_pointermasking,
&vmstate_rv128,
&vmstate_kvmtimer,
NULL
}
};