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target/arm/cpu: adjust virtual time for all KVM arm cpus

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Virtual time adjustment was implemented for virt-5.0 machine type,
but the cpu property was enabled only for host-passthrough and max
cpu model.  Let's add it for any KVM arm cpu which has the generic
timer feature enabled.

Signed-off-by: Ying Fang <fangying1@huawei.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200608121243.2076-1-fangying1@huawei.com
[PMM: minor commit message tweak, removed inaccurate
 suggested-by tag]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
fangying 2020-06-16 10:32:29 +01:00 • committed by Peter Maydell
parent d7a64d0063
commit 9e6f8d8aab
3 changed files with 15 additions and 13 deletions
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21
target/arm/kvm.c
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@ -194,17 +194,18 @@ static void kvm_no_adjvtime_set(Object *obj, bool value, Error **errp)
/* KVM VCPU properties should be prefixed with "kvm-". */
void kvm_arm_add_vcpu_properties(Object *obj)
{
if (!kvm_enabled()) {
return;
}
ARMCPU *cpu = ARM_CPU(obj);
CPUARMState *env = &cpu->env;
ARM_CPU(obj)->kvm_adjvtime = true;
object_property_add_bool(obj, "kvm-no-adjvtime", kvm_no_adjvtime_get,
kvm_no_adjvtime_set);
object_property_set_description(obj, "kvm-no-adjvtime",
"Set on to disable the adjustment of "
"the virtual counter. VM stopped time "
"will be counted.");
if (arm_feature(env, ARM_FEATURE_GENERIC_TIMER)) {
cpu->kvm_adjvtime = true;
object_property_add_bool(obj, "kvm-no-adjvtime", kvm_no_adjvtime_get,
kvm_no_adjvtime_set);
object_property_set_description(obj, "kvm-no-adjvtime",
"Set on to disable the adjustment of "
"the virtual counter. VM stopped time "
"will be counted.");
}
}
bool kvm_arm_pmu_supported(CPUState *cpu)