diff options
Diffstat (limited to 'drivers/kvm/x86.c')
| -rw-r--r-- | drivers/kvm/x86.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/kvm/x86.c b/drivers/kvm/x86.c index 12f1d6fc92b..c9e4b67bfb1 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; |