Check if kvm supports guest PMUv3. If so, set the corresponding feature
bit for vcpu.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id:
1465267577-1808-2-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
bool powered_off;
/* CPU has security extension */
bool has_el3;
+ /* CPU has PMU (Performance Monitor Unit) */
+ bool has_pmu;
/* CPU has memory protection unit */
bool has_mpu;
if (!arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) {
cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_EL1_32BIT;
}
+ if (kvm_irqchip_in_kernel() &&
+ kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PMU_V3)) {
+ cpu->has_pmu = true;
+ cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_PMU_V3;
+ }
/* Do KVM_ARM_VCPU_INIT ioctl */
ret = kvm_arm_vcpu_init(cs);