[PATCH v1] KVM: x86: add KVM_CAP_DEVICE_CTRL

[Wei Wang]

KVM_CAP_DEVICE_CTRL allows userspace to create emulated device in KVM.
For example, userspace VFIO implementation needs to create a kvm_device
(i.e. KVM_DEV_TYPE_VFIO) on x86. So add the cap to allow userspace for
such use cases.

Signed-off-by: Wei Wang <wei.w.wang@xxxxxxxxx>
---
 arch/x86/kvm/x86.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 69227f77b201..1cdc4469652c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4410,6 +4410,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_VAPIC:
 	case KVM_CAP_ENABLE_CAP:
 	case KVM_CAP_VM_DISABLE_NX_HUGE_PAGES:
+	case KVM_CAP_DEVICE_CTRL:
 		r = 1;
 		break;
 	case KVM_CAP_EXIT_HYPERCALL:
-- 
2.32.0