diff options
Diffstat (limited to 'virt/kvm/kvm_main.c')
| -rw-r--r-- | virt/kvm/kvm_main.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 035bc51f656f..6281cc2446d5 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -3075,6 +3075,8 @@ static long kvm_vm_ioctl(struct file *filp, if (copy_from_user(&routing, argp, sizeof(routing))) goto out; r = -EINVAL; + if (!kvm_arch_can_set_irq_routing(kvm)) + goto out; if (routing.nr > KVM_MAX_IRQ_ROUTES) goto out; if (routing.flags) @@ -3090,11 +3092,8 @@ static long kvm_vm_ioctl(struct file *filp, routing.nr * sizeof(*entries))) goto out_free_irq_routing; } - /* avoid races with KVM_CREATE_IRQCHIP on x86 */ - mutex_lock(&kvm->lock); r = kvm_set_irq_routing(kvm, entries, routing.nr, routing.flags); - mutex_unlock(&kvm->lock); out_free_irq_routing: vfree(entries); break; |