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
