diff options
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 2e6fbb0b4f68..ce5b659ec531 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -196,6 +196,10 @@ static int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap) return -EINVAL; switch (cap->cap) { + case KVM_CAP_S390_IRQCHIP: + kvm->arch.use_irqchip = 1; + r = 0; + break; default: r = -EINVAL; break; @@ -228,6 +232,18 @@ long kvm_arch_vm_ioctl(struct file *filp, r = kvm_vm_ioctl_enable_cap(kvm, &cap); break; } + case KVM_CREATE_IRQCHIP: { + struct kvm_irq_routing_entry routing; + + r = -EINVAL; + if (kvm->arch.use_irqchip) { + /* Set up dummy routing. */ + memset(&routing, 0, sizeof(routing)); + kvm_set_irq_routing(kvm, &routing, 0, 0); + r = 0; + } + break; + } default: r = -ENOTTY; } @@ -284,6 +300,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) } kvm->arch.css_support = 0; + kvm->arch.use_irqchip = 0; return 0; out_nogmap: |