diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c
--- a/sys/amd64/amd64/pmap.c
+++ b/sys/amd64/amd64/pmap.c
@@ -424,7 +424,7 @@
 SYSCTL_INT(_vm_pmap, OID_AUTO, pg_ps_enabled, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
     &pg_ps_enabled, 0, "Are large page mappings enabled?");
 
-int __read_frequently la57 = 0;
+int __read_frequently la57 = 1;
 SYSCTL_INT(_vm_pmap, OID_AUTO, la57, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
     &la57, 0,
     "5-level paging for host is enabled");