KVM: PPC: Book3S HV: Introduce new capability for 2nd DAWR

[linux-2.6-microblaze.git] / arch / powerpc / kvm / powerpc.c

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index cf52d26..5914c32 100644 (file)
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -678,6 +678,10 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
                r = hv_enabled && kvmppc_hv_ops->enable_svm &&
                        !kvmppc_hv_ops->enable_svm(NULL);
                break;
+       case KVM_CAP_PPC_DAWR1:
+               r = !!(hv_enabled && kvmppc_hv_ops->enable_dawr1 &&
+                      !kvmppc_hv_ops->enable_dawr1(NULL));
+               break;
 #endif
        default:
                r = 0;
@@ -2187,6 +2191,12 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
                        break;
                r = kvm->arch.kvm_ops->enable_svm(kvm);
                break;
+       case KVM_CAP_PPC_DAWR1:
+               r = -EINVAL;
+               if (!is_kvmppc_hv_enabled(kvm) || !kvm->arch.kvm_ops->enable_dawr1)
+                       break;
+               r = kvm->arch.kvm_ops->enable_dawr1(kvm);
+               break;
 #endif
        default:
                r = -EINVAL;