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[PATCH v4 12/12] target/riscv: Support virtual time context synchronizat
From: |
Yifei Jiang |
Subject: |
[PATCH v4 12/12] target/riscv: Support virtual time context synchronization |
Date: |
Mon, 10 Jan 2022 09:38:31 +0800 |
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>
---
target/riscv/machine.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/target/riscv/machine.c b/target/riscv/machine.c
index ad8248ebfd..95eb82792a 100644
--- a/target/riscv/machine.c
+++ b/target/riscv/machine.c
@@ -164,6 +164,35 @@ static const VMStateDescription vmstate_pointermasking = {
}
};
+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,
@@ -218,6 +247,7 @@ const VMStateDescription vmstate_riscv_cpu = {
&vmstate_hyper,
&vmstate_vector,
&vmstate_pointermasking,
+ &vmstate_kvmtimer,
NULL
}
};
--
2.19.1
- [PATCH v4 03/12] target/riscv: Implement function kvm_arch_init_vcpu, (continued)
- [PATCH v4 03/12] target/riscv: Implement function kvm_arch_init_vcpu, Yifei Jiang, 2022/01/09
- [PATCH v4 06/12] target/riscv: Support start kernel directly by KVM, Yifei Jiang, 2022/01/09
- [PATCH v4 07/12] target/riscv: Support setting external interrupt by KVM, Yifei Jiang, 2022/01/09
- [PATCH v4 04/12] target/riscv: Implement kvm_arch_get_registers, Yifei Jiang, 2022/01/09
- [PATCH v4 08/12] target/riscv: Handle KVM_EXIT_RISCV_SBI exit, Yifei Jiang, 2022/01/09
- [PATCH v4 10/12] target/riscv: Add kvm_riscv_get/put_regs_timer, Yifei Jiang, 2022/01/09
- [PATCH v4 12/12] target/riscv: Support virtual time context synchronization,
Yifei Jiang <=
- [PATCH v4 11/12] target/riscv: Implement virtual time adjusting with vm state changing, Yifei Jiang, 2022/01/09
- [PATCH v4 09/12] target/riscv: Add host cpu type, Yifei Jiang, 2022/01/09
- [PATCH v4 05/12] target/riscv: Implement kvm_arch_put_registers, Yifei Jiang, 2022/01/09