diff --git a/sys/conf/files b/sys/conf/files
index 3419e48..39328ee 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -4692,3 +4692,4 @@ xdr/xdr_mbuf.c			optional krpc | nfslockd | nfscl | nfsd
 xdr/xdr_mem.c			optional krpc | nfslockd | nfscl | nfsd
 xdr/xdr_reference.c		optional krpc | nfslockd | nfscl | nfsd
 xdr/xdr_sizeof.c		optional krpc | nfslockd | nfscl | nfsd
+dev/dummy.c			standard
diff --git a/sys/dev/dummy.c b/sys/dev/dummy.c
new file mode 100644
index 0000000..381e76a
--- /dev/null
+++ b/sys/dev/dummy.c
@@ -0,0 +1,141 @@
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/uio.h>
+#include <sys/bus.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/rwlock.h>
+#include <sys/selinfo.h>
+#include <sys/poll.h>
+#include <sys/conf.h>
+#include <sys/fcntl.h>
+#include <sys/ioccom.h>
+#include <sys/rman.h>
+#include <sys/tree.h>
+#include <sys/module.h>
+#include <sys/proc.h>
+#include <sys/bitset.h>
+
+#include <vm/vm.h>
+#include <vm/vm_param.h>
+#include <vm/vm_extern.h>
+#include <vm/vm_kern.h>
+#include <vm/vm_page.h>
+#include <vm/vm_map.h>
+#include <vm/vm_object.h>
+#include <vm/vm_pager.h>
+#include <vm/vm_phys.h>
+
+#include <machine/md_var.h>
+
+static d_mmap_single_t	dummy_mmap_single;
+
+static struct cdevsw dummy_devsw = {
+	.d_version = D_VERSION,
+	.d_mmap_single = dummy_mmap_single,
+	.d_name = "dummy",
+};
+
+static int dummy_pg_ctor(void *handle, vm_ooffset_t size, vm_prot_t prot,
+    vm_ooffset_t foff, struct ucred *cred, u_short *color);
+static void dummy_pg_dtor(void *handle);
+static int dummy_pg_fault(vm_object_t object, vm_ooffset_t offset,
+    int prot, vm_page_t *mres);
+
+static struct cdev_pager_ops dummy_pg_ops = {
+	.cdev_pg_fault = dummy_pg_fault,
+	.cdev_pg_ctor =	dummy_pg_ctor,
+	.cdev_pg_dtor =	dummy_pg_dtor,
+};
+
+/*------------------------- Privcmd Pager functions --------------------------*/
+static int
+dummy_pg_ctor(void *handle, vm_ooffset_t size, vm_prot_t prot,
+    vm_ooffset_t foff, struct ucred *cred, u_short *color)
+{
+
+	return (0);
+}
+
+static void
+dummy_pg_dtor(void *handle)
+{
+}
+
+static int
+dummy_pg_fault(vm_object_t object, vm_ooffset_t offset,
+    int prot, vm_page_t *mres)
+{
+
+	printf("Page-fault handler called\n");	
+	return (VM_PAGER_FAIL);
+}
+
+/*----------------------- Privcmd char device methods ------------------------*/
+static int
+dummy_mmap_single(struct cdev *cdev, vm_ooffset_t *offset, vm_size_t size,
+    vm_object_t *object, int nprot)
+{
+
+	printf("size: %#lx offset: %#lx\n", size, *offset);
+
+	*object = cdev_pager_allocate(cdev, OBJT_MGTDEVICE, &dummy_pg_ops,
+	    size, nprot, *offset, NULL);
+	if (*object == NULL) {
+		printf("Failed to alloc pager\n");
+		return (ENOMEM);
+	}
+
+	return (0);
+}
+
+/*------------------ Private Device Attachment Functions  --------------------*/
+static void
+dummy_identify(driver_t *driver, device_t parent)
+{
+
+	if (BUS_ADD_CHILD(parent, 0, "dummy", 0) == NULL)
+		panic("unable to attach dummy user-space device");
+}
+
+static int
+dummy_probe(device_t dev)
+{
+
+	device_set_desc(dev, "Dummy mmap user-space device");
+	return (BUS_PROBE_NOWILDCARD);
+}
+
+static int
+dummy_attach(device_t dev)
+{
+
+	make_dev_credf(MAKEDEV_ETERNAL, &dummy_devsw, 0, NULL, UID_ROOT,
+	    GID_WHEEL, 0600, "dummy");
+	return (0);
+}
+
+/*-------------------- Private Device Attachment Data  -----------------------*/
+static device_method_t dummy_methods[] = {
+	DEVMETHOD(device_identify,	dummy_identify),
+	DEVMETHOD(device_probe,		dummy_probe),
+	DEVMETHOD(device_attach,	dummy_attach),
+
+	DEVMETHOD_END
+};
+
+static driver_t dummy_driver = {
+	"dummy",
+	dummy_methods,
+	0,
+};
+
+devclass_t dummy_devclass;
+
+DRIVER_MODULE(dummy, nexus, dummy_driver, dummy_devclass, 0, 0);
+MODULE_DEPEND(dummy, nexus, 1, 1, 1);