1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/kvm/x86.c b/drivers/kvm/x86.c
index 12f1d6fc92bb..c9e4b67bfb1b 100644
--- a/drivers/kvm/x86.c
+++ b/drivers/kvm/x86.c
@@ -1001,6 +1001,23 @@ static int kvm_vcpu_ioctl_set_lapic(struct kvm_vcpu *vcpu,
         return 0;
 }
 
+static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
+                                    struct kvm_interrupt *irq)
+{
+        if (irq->irq < 0 || irq->irq >= 256)
+                return -EINVAL;
+        if (irqchip_in_kernel(vcpu->kvm))
+                return -ENXIO;
+        vcpu_load(vcpu);
+
+        set_bit(irq->irq, vcpu->irq_pending);
+        set_bit(irq->irq / BITS_PER_LONG, &vcpu->irq_summary);
+
+        vcpu_put(vcpu);
+
+        return 0;
+}
+
 long kvm_arch_vcpu_ioctl(struct file *filp,
                          unsigned int ioctl, unsigned long arg)
 {
@@ -1034,6 +1051,18 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
                 r = 0;
                 break;
         }
+        case KVM_INTERRUPT: {
+                struct kvm_interrupt irq;
+
+                r = -EFAULT;
+                if (copy_from_user(&irq, argp, sizeof irq))
+                        goto out;
+                r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
+                if (r)
+                        goto out;
+                r = 0;
+                break;
+        }
         case KVM_SET_CPUID: {
                 struct kvm_cpuid __user *cpuid_arg = argp;
                 struct kvm_cpuid cpuid;