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| author | Bibo Mao <maobibo@loongson.cn> | 2025-02-15 17:01:21 +0800 |
|---|---|---|
| committer | Bibo Mao <maobibo@loongson.cn> | 2025-02-25 16:05:31 +0800 |
| commit | 610babce1ed83a0fd3af14f5195114d6c5338610 (patch) | |
| tree | ba2a208e47e6ef7f039f6fe6f08d6e368bc774b7 | |
| parent | 2698cc7c99b50cf4bb127c56e5c90f7f3cba6f0d (diff) | |
| download | qemu-610babce1ed83a0fd3af14f5195114d6c5338610.zip qemu-610babce1ed83a0fd3af14f5195114d6c5338610.tar.gz qemu-610babce1ed83a0fd3af14f5195114d6c5338610.tar.bz2 | |
target/loongarch: Add vCPU property for kvm steal time feature
Property kvm-steal-time is added for kvm steal time feature, it is
specially for kvm mode.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
| -rw-r--r-- | target/loongarch/cpu.h | 1 | ||||
| -rw-r--r-- | target/loongarch/kvm/kvm.c | 18 | ||||
| -rw-r--r-- | target/loongarch/loongarch-qmp-cmds.c | 2 |
3 files changed, 20 insertions, 1 deletions
diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index 3a8e45d..3e8a917 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -409,6 +409,7 @@ struct ArchCPU { OnOffAuto lsx; OnOffAuto lasx; OnOffAuto kvm_pv_ipi; + OnOffAuto kvm_steal_time; /* 'compatible' string for this CPU for Linux device trees */ const char *dtb_compatible; diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c index ed0706e..def7451 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -1122,6 +1122,18 @@ static void kvm_pv_ipi_set(Object *obj, bool value, Error **errp) cpu->kvm_pv_ipi = value ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF; } +static bool kvm_steal_time_get(Object *obj, Error **errp) +{ + return LOONGARCH_CPU(obj)->kvm_steal_time != ON_OFF_AUTO_OFF; +} + +static void kvm_steal_time_set(Object *obj, bool value, Error **errp) +{ + LoongArchCPU *cpu = LOONGARCH_CPU(obj); + + cpu->kvm_steal_time = value ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF; +} + void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu) { cpu->lbt = ON_OFF_AUTO_AUTO; @@ -1141,6 +1153,12 @@ void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu) kvm_pv_ipi_set); object_property_set_description(OBJECT(cpu), "kvm-pv-ipi", "Set off to disable KVM paravirt IPI."); + + cpu->kvm_steal_time = ON_OFF_AUTO_AUTO; + object_property_add_bool(OBJECT(cpu), "kvm-steal-time", kvm_steal_time_get, + kvm_steal_time_set); + object_property_set_description(OBJECT(cpu), "kvm-steal-time", + "Set off to disable KVM steal time."); } int kvm_arch_destroy_vcpu(CPUState *cs) diff --git a/target/loongarch/loongarch-qmp-cmds.c b/target/loongarch/loongarch-qmp-cmds.c index 4f94a39..6f732d8 100644 --- a/target/loongarch/loongarch-qmp-cmds.c +++ b/target/loongarch/loongarch-qmp-cmds.c @@ -40,7 +40,7 @@ CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp) } static const char *cpu_model_advertised_features[] = { - "lsx", "lasx", "lbt", "pmu", "kvm-pv-ipi", NULL + "lsx", "lasx", "lbt", "pmu", "kvm-pv-ipi", "kvm-steal-time", NULL }; CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, |