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| author | Bibo Mao <maobibo@loongson.cn> | 2025-02-24 10:30:47 +0800 |
|---|---|---|
| committer | Bibo Mao <maobibo@loongson.cn> | 2025-02-25 16:05:31 +0800 |
| commit | 5b0502c56412c115f9ff37fad56ff53674676a22 (patch) | |
| tree | 314474e9ff27e6e4a921dce23349cdeb53c1dc65 | |
| parent | 780a65bd955dee4e58b2cefb3312e85731eace6e (diff) | |
| download | qemu-5b0502c56412c115f9ff37fad56ff53674676a22.zip qemu-5b0502c56412c115f9ff37fad56ff53674676a22.tar.gz qemu-5b0502c56412c115f9ff37fad56ff53674676a22.tar.bz2 | |
target/loongarch: Add vCPU property for paravirt ipi feature
Property kvm-pv-ipi is added to paravirt ipi 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 74dffcb..447192b 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -406,6 +406,7 @@ struct ArchCPU { OnOffAuto pmu; OnOffAuto lsx; OnOffAuto lasx; + OnOffAuto kvm_pv_ipi; /* '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 b028243..83a6887 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -1040,6 +1040,18 @@ static void loongarch_set_pmu(Object *obj, bool value, Error **errp) cpu->pmu = value ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF; } +static bool kvm_pv_ipi_get(Object *obj, Error **errp) +{ + return LOONGARCH_CPU(obj)->kvm_pv_ipi != ON_OFF_AUTO_OFF; +} + +static void kvm_pv_ipi_set(Object *obj, bool value, Error **errp) +{ + LoongArchCPU *cpu = LOONGARCH_CPU(obj); + + cpu->kvm_pv_ipi = value ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF; +} + void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu) { cpu->lbt = ON_OFF_AUTO_AUTO; @@ -1053,6 +1065,12 @@ void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu) loongarch_set_pmu); object_property_set_description(OBJECT(cpu), "pmu", "Set off to disable performance monitor unit."); + + cpu->kvm_pv_ipi = ON_OFF_AUTO_AUTO; + object_property_add_bool(OBJECT(cpu), "kvm-pv-ipi", kvm_pv_ipi_get, + kvm_pv_ipi_set); + object_property_set_description(OBJECT(cpu), "kvm-pv-ipi", + "Set off to disable KVM paravirt IPI."); } int kvm_arch_destroy_vcpu(CPUState *cs) diff --git a/target/loongarch/loongarch-qmp-cmds.c b/target/loongarch/loongarch-qmp-cmds.c index 3fde5a5..4f94a39 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", NULL + "lsx", "lasx", "lbt", "pmu", "kvm-pv-ipi", NULL }; CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, |