1 files changed, 10 insertions, 1 deletions

diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 4fde8c7dfcfe..77e6ccf14901 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -33,6 +33,7 @@
 static struct timecounter *timecounter;
 static struct workqueue_struct *wqueue;
 static unsigned int host_vtimer_irq;
+static u32 host_vtimer_irq_flags;
 
 void kvm_timer_vcpu_put(struct kvm_vcpu *vcpu)
 {
@@ -365,7 +366,7 @@ void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu)
 
 static void kvm_timer_init_interrupt(void *info)
 {
-        enable_percpu_irq(host_vtimer_irq, 0);
+        enable_percpu_irq(host_vtimer_irq, host_vtimer_irq_flags);
 }
 
 int kvm_arm_timer_set_reg(struct kvm_vcpu *vcpu, u64 regid, u64 value)
@@ -432,6 +433,14 @@ int kvm_timer_hyp_init(void)
         }
         host_vtimer_irq = info->virtual_irq;
 
+        host_vtimer_irq_flags = irq_get_trigger_type(host_vtimer_irq);
+        if (host_vtimer_irq_flags != IRQF_TRIGGER_HIGH &&
+            host_vtimer_irq_flags != IRQF_TRIGGER_LOW) {
+                kvm_err("Invalid trigger for IRQ%d, assuming level low\n",
+                        host_vtimer_irq);
+                host_vtimer_irq_flags = IRQF_TRIGGER_LOW;
+        }
+
         err = request_percpu_irq(host_vtimer_irq, kvm_arch_timer_handler,
                                  "kvm guest timer", kvm_get_running_vcpus());
         if (err) {