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-rw-r--r--virt/kvm/arm/pmu.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/virt/kvm/arm/pmu.c b/virt/kvm/arm/pmu.c
index a027569fa..6e9c40eea 100644
--- a/virt/kvm/arm/pmu.c
+++ b/virt/kvm/arm/pmu.c
@@ -423,6 +423,14 @@ static int kvm_arm_pmu_v3_init(struct kvm_vcpu *vcpu)
if (!kvm_arm_support_pmu_v3())
return -ENODEV;
+ /*
+ * We currently require an in-kernel VGIC to use the PMU emulation,
+ * because we do not support forwarding PMU overflow interrupts to
+ * userspace yet.
+ */
+ if (!irqchip_in_kernel(vcpu->kvm) || !vgic_initialized(vcpu->kvm))
+ return -ENODEV;
+
if (!test_bit(KVM_ARM_VCPU_PMU_V3, vcpu->arch.features) ||
!kvm_arm_pmu_irq_initialized(vcpu))
return -ENXIO;